./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF --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 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:48:28,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:48:28,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:48:28,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:48:28,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:48:28,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:48:28,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:48:28,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:48:28,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:48:28,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:48:28,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:48:28,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:48:28,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:48:28,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:48:28,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:48:28,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:48:28,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:48:28,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:48:28,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:48:28,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:48:28,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:48:28,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:48:28,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:48:28,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:48:28,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:48:28,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:48:28,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:48:28,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:48:28,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:48:28,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:48:28,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:48:28,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:48:28,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:48:28,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:48:28,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:48:28,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:48:28,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:48:28,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:48:29,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:48:29,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:48:29,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:48:29,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-20 06:48:29,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:48:29,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:48:29,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:48:29,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:48:29,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:48:29,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:48:29,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:48:29,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:48:29,054 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:48:29,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:48:29,056 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:48:29,056 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:48:29,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:48:29,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:48:29,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:48:29,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:48:29,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:48:29,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:48:29,058 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 06:48:29,058 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:48:29,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:48:29,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:48:29,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:48:29,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:48:29,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:48:29,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:48:29,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:48:29,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:48:29,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:48:29,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:48:29,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:48:29,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:48:29,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:48:29,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:48:29,064 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_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 [2021-11-20 06:48:29,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:48:29,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:48:29,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:48:29,358 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:48:29,359 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:48:29,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2021-11-20 06:48:29,428 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/data/719bc8a9a/868827d4f6e2466fa5c8889775852f78/FLAG37dc91551 [2021-11-20 06:48:30,075 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:48:30,077 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2021-11-20 06:48:30,108 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/data/719bc8a9a/868827d4f6e2466fa5c8889775852f78/FLAG37dc91551 [2021-11-20 06:48:30,297 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/data/719bc8a9a/868827d4f6e2466fa5c8889775852f78 [2021-11-20 06:48:30,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:48:30,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:48:30,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:48:30,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:48:30,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:48:30,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:48:30" (1/1) ... [2021-11-20 06:48:30,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783fbd6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:30, skipping insertion in model container [2021-11-20 06:48:30,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:48:30" (1/1) ... [2021-11-20 06:48:30,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:48:30,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:48:30,794 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_222a4974-1ec7-4208-b2b0-7f4981d13177/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[33021,33034] [2021-11-20 06:48:30,880 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_222a4974-1ec7-4208-b2b0-7f4981d13177/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[44124,44137] [2021-11-20 06:48:30,881 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_222a4974-1ec7-4208-b2b0-7f4981d13177/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[44245,44258] [2021-11-20 06:48:30,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:48:30,897 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:48:30,930 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_222a4974-1ec7-4208-b2b0-7f4981d13177/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[33021,33034] [2021-11-20 06:48:30,987 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_222a4974-1ec7-4208-b2b0-7f4981d13177/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[44124,44137] [2021-11-20 06:48:30,988 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_222a4974-1ec7-4208-b2b0-7f4981d13177/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i[44245,44258] [2021-11-20 06:48:30,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:48:31,039 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:48:31,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31 WrapperNode [2021-11-20 06:48:31,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:48:31,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:48:31,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:48:31,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:48:31,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31" (1/1) ... [2021-11-20 06:48:31,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31" (1/1) ... [2021-11-20 06:48:31,163 INFO L137 Inliner]: procedures = 176, calls = 277, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1002 [2021-11-20 06:48:31,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:48:31,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:48:31,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:48:31,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:48:31,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31" (1/1) ... [2021-11-20 06:48:31,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31" (1/1) ... [2021-11-20 06:48:31,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31" (1/1) ... [2021-11-20 06:48:31,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31" (1/1) ... [2021-11-20 06:48:31,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31" (1/1) ... [2021-11-20 06:48:31,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31" (1/1) ... [2021-11-20 06:48:31,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31" (1/1) ... [2021-11-20 06:48:31,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:48:31,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:48:31,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:48:31,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:48:31,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31" (1/1) ... [2021-11-20 06:48:31,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:48:31,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:48:31,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:48:31,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:48:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:48:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:48:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 06:48:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 06:48:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:48:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:48:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:48:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:48:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 06:48:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:48:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:48:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:48:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:48:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:48:31,714 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:48:31,729 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:48:32,641 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:48:32,656 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:48:32,656 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-20 06:48:32,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:48:32 BoogieIcfgContainer [2021-11-20 06:48:32,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:48:32,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:48:32,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:48:32,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:48:32,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:48:30" (1/3) ... [2021-11-20 06:48:32,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2762af45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:48:32, skipping insertion in model container [2021-11-20 06:48:32,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:48:31" (2/3) ... [2021-11-20 06:48:32,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2762af45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:48:32, skipping insertion in model container [2021-11-20 06:48:32,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:48:32" (3/3) ... [2021-11-20 06:48:32,672 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test7-1.i [2021-11-20 06:48:32,678 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:48:32,678 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-20 06:48:32,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:48:32,733 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 [2021-11-20 06:48:32,734 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-20 06:48:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 183 states have (on average 1.7049180327868851) internal successors, (312), 189 states have internal predecessors, (312), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:48:32,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 06:48:32,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:48:32,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:48:32,761 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 06:48:32,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:48:32,766 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2021-11-20 06:48:32,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:48:32,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918304611] [2021-11-20 06:48:32,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:32,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:48:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:32,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:48:32,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:48:32,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918304611] [2021-11-20 06:48:32,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918304611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:48:32,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:48:32,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:48:32,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247241620] [2021-11-20 06:48:32,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:48:32,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:48:32,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:48:32,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:48:32,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:48:32,962 INFO L87 Difference]: Start difference. First operand has 194 states, 183 states have (on average 1.7049180327868851) internal successors, (312), 189 states have internal predecessors, (312), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2021-11-20 06:48:33,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:48:33,006 INFO L93 Difference]: Finished difference Result 385 states and 633 transitions. [2021-11-20 06:48:33,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:48:33,008 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 [2021-11-20 06:48:33,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:48:33,018 INFO L225 Difference]: With dead ends: 385 [2021-11-20 06:48:33,018 INFO L226 Difference]: Without dead ends: 187 [2021-11-20 06:48:33,022 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 [2021-11-20 06:48:33,026 INFO L933 BasicCegarLoop]: 248 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, 248 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 [2021-11-20 06:48:33,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:48:33,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-20 06:48:33,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-11-20 06:48:33,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 177 states have (on average 1.3333333333333333) internal successors, (236), 182 states have internal predecessors, (236), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:48:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 242 transitions. [2021-11-20 06:48:33,079 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 242 transitions. Word has length 7 [2021-11-20 06:48:33,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:48:33,080 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 242 transitions. [2021-11-20 06:48:33,080 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) [2021-11-20 06:48:33,080 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 242 transitions. [2021-11-20 06:48:33,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 06:48:33,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:48:33,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:48:33,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:48:33,082 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 06:48:33,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:48:33,083 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2021-11-20 06:48:33,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:48:33,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450583214] [2021-11-20 06:48:33,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:33,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:48:33,111 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:48:33,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [751884468] [2021-11-20 06:48:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:33,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:48:33,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:48:33,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:48:33,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:48:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:33,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:48:33,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:48:33,317 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 [2021-11-20 06:48:33,324 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 [2021-11-20 06:48:33,382 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 06:48:33,383 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 [2021-11-20 06:48:33,469 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 19 treesize of output 11 [2021-11-20 06:48:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:48:33,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:48:33,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:48:33,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450583214] [2021-11-20 06:48:33,479 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:48:33,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751884468] [2021-11-20 06:48:33,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751884468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:48:33,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:48:33,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:48:33,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836898001] [2021-11-20 06:48:33,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:48:33,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:48:33,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:48:33,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:48:33,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:48:33,483 INFO L87 Difference]: Start difference. First operand 187 states and 242 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) [2021-11-20 06:48:34,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:48:34,193 INFO L93 Difference]: Finished difference Result 306 states and 400 transitions. [2021-11-20 06:48:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:48:34,194 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 [2021-11-20 06:48:34,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:48:34,198 INFO L225 Difference]: With dead ends: 306 [2021-11-20 06:48:34,198 INFO L226 Difference]: Without dead ends: 304 [2021-11-20 06:48:34,198 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 [2021-11-20 06:48:34,200 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 188 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:48:34,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 735 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 06:48:34,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-20 06:48:34,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 193. [2021-11-20 06:48:34,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 183 states have (on average 1.3278688524590163) internal successors, (243), 188 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:48:34,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 249 transitions. [2021-11-20 06:48:34,219 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 249 transitions. Word has length 7 [2021-11-20 06:48:34,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:48:34,219 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 249 transitions. [2021-11-20 06:48:34,219 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) [2021-11-20 06:48:34,219 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 249 transitions. [2021-11-20 06:48:34,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-20 06:48:34,222 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:48:34,222 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] [2021-11-20 06:48:34,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:48:34,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-20 06:48:34,448 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 06:48:34,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:48:34,449 INFO L85 PathProgramCache]: Analyzing trace with hash -385089840, now seen corresponding path program 1 times [2021-11-20 06:48:34,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:48:34,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994294205] [2021-11-20 06:48:34,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:34,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:48:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:48:34,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:48:34,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994294205] [2021-11-20 06:48:34,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994294205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:48:34,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:48:34,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:48:34,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255472872] [2021-11-20 06:48:34,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:48:34,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:48:34,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:48:34,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:48:34,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:48:34,547 INFO L87 Difference]: Start difference. First operand 193 states and 249 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2021-11-20 06:48:34,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:48:34,897 INFO L93 Difference]: Finished difference Result 355 states and 462 transitions. [2021-11-20 06:48:34,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:48:34,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2021-11-20 06:48:34,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:48:34,899 INFO L225 Difference]: With dead ends: 355 [2021-11-20 06:48:34,899 INFO L226 Difference]: Without dead ends: 270 [2021-11-20 06:48:34,900 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 [2021-11-20 06:48:34,901 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 99 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:48:34,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 615 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:48:34,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-11-20 06:48:34,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 193. [2021-11-20 06:48:34,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 183 states have (on average 1.3224043715846994) internal successors, (242), 188 states have internal predecessors, (242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:48:34,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 248 transitions. [2021-11-20 06:48:34,915 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 248 transitions. Word has length 50 [2021-11-20 06:48:34,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:48:34,916 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 248 transitions. [2021-11-20 06:48:34,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2021-11-20 06:48:34,916 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 248 transitions. [2021-11-20 06:48:34,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 06:48:34,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:48:34,919 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] [2021-11-20 06:48:34,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:48:34,919 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 06:48:34,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:48:34,920 INFO L85 PathProgramCache]: Analyzing trace with hash 305892652, now seen corresponding path program 1 times [2021-11-20 06:48:34,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:48:34,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324401316] [2021-11-20 06:48:34,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:34,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:48:34,940 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:48:34,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1560645038] [2021-11-20 06:48:34,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:34,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:48:34,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:48:34,942 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:48:34,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:48:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:35,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:48:35,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:48:35,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:48:35,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:48:35,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:48:35,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324401316] [2021-11-20 06:48:35,238 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:48:35,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560645038] [2021-11-20 06:48:35,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560645038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:48:35,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:48:35,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:48:35,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112372742] [2021-11-20 06:48:35,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:48:35,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:48:35,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:48:35,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:48:35,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:48:35,242 INFO L87 Difference]: Start difference. First operand 193 states and 248 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) [2021-11-20 06:48:35,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:48:35,318 INFO L93 Difference]: Finished difference Result 399 states and 519 transitions. [2021-11-20 06:48:35,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:48:35,319 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 [2021-11-20 06:48:35,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:48:35,320 INFO L225 Difference]: With dead ends: 399 [2021-11-20 06:48:35,321 INFO L226 Difference]: Without dead ends: 214 [2021-11-20 06:48:35,324 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 [2021-11-20 06:48:35,328 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 9 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:48:35,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 429 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:48:35,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-20 06:48:35,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 213. [2021-11-20 06:48:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 203 states have (on average 1.29064039408867) internal successors, (262), 208 states have internal predecessors, (262), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:48:35,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 268 transitions. [2021-11-20 06:48:35,358 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 268 transitions. Word has length 57 [2021-11-20 06:48:35,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:48:35,359 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 268 transitions. [2021-11-20 06:48:35,359 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) [2021-11-20 06:48:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 268 transitions. [2021-11-20 06:48:35,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 06:48:35,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:48:35,367 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] [2021-11-20 06:48:35,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:48:35,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:48:35,580 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 06:48:35,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:48:35,581 INFO L85 PathProgramCache]: Analyzing trace with hash 815365742, now seen corresponding path program 1 times [2021-11-20 06:48:35,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:48:35,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720007981] [2021-11-20 06:48:35,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:35,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:48:35,600 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:48:35,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526660007] [2021-11-20 06:48:35,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:35,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:48:35,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:48:35,601 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:48:35,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:48:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:35,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:48:35,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:48:35,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:48:35,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:48:35,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:48:35,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720007981] [2021-11-20 06:48:35,905 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:48:35,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526660007] [2021-11-20 06:48:35,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526660007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:48:35,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:48:35,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:48:35,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418322219] [2021-11-20 06:48:35,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:48:35,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:48:35,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:48:35,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:48:35,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:48:35,908 INFO L87 Difference]: Start difference. First operand 213 states and 268 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:48:35,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:48:35,971 INFO L93 Difference]: Finished difference Result 408 states and 518 transitions. [2021-11-20 06:48:35,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:48:35,972 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 [2021-11-20 06:48:35,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:48:35,973 INFO L225 Difference]: With dead ends: 408 [2021-11-20 06:48:35,974 INFO L226 Difference]: Without dead ends: 203 [2021-11-20 06:48:35,974 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 [2021-11-20 06:48:35,975 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 220 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 453 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 [2021-11-20 06:48:35,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 453 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:48:35,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-11-20 06:48:35,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 199. [2021-11-20 06:48:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 189 states have (on average 1.2751322751322751) internal successors, (241), 194 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:48:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 247 transitions. [2021-11-20 06:48:35,983 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 247 transitions. Word has length 57 [2021-11-20 06:48:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:48:35,983 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 247 transitions. [2021-11-20 06:48:35,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:48:35,984 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 247 transitions. [2021-11-20 06:48:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-20 06:48:35,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:48:35,986 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] [2021-11-20 06:48:36,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:48:36,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:48:36,204 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 06:48:36,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:48:36,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1455665376, now seen corresponding path program 1 times [2021-11-20 06:48:36,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:48:36,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132263686] [2021-11-20 06:48:36,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:36,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:48:36,220 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:48:36,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275469815] [2021-11-20 06:48:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:36,220 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:48:36,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:48:36,221 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:48:36,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 06:48:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:36,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:48:36,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:48:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:48:36,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:48:36,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:48:36,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132263686] [2021-11-20 06:48:36,608 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:48:36,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275469815] [2021-11-20 06:48:36,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275469815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:48:36,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:48:36,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:48:36,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457450227] [2021-11-20 06:48:36,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:48:36,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:48:36,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:48:36,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:48:36,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:48:36,611 INFO L87 Difference]: Start difference. First operand 199 states and 247 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) [2021-11-20 06:48:36,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:48:36,693 INFO L93 Difference]: Finished difference Result 499 states and 622 transitions. [2021-11-20 06:48:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:48:36,693 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 [2021-11-20 06:48:36,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:48:36,695 INFO L225 Difference]: With dead ends: 499 [2021-11-20 06:48:36,696 INFO L226 Difference]: Without dead ends: 308 [2021-11-20 06:48:36,696 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 [2021-11-20 06:48:36,697 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 99 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:48:36,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 483 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:48:36,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-11-20 06:48:36,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 305. [2021-11-20 06:48:36,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 295 states have (on average 1.2677966101694915) internal successors, (374), 300 states have internal predecessors, (374), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:48:36,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 380 transitions. [2021-11-20 06:48:36,709 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 380 transitions. Word has length 57 [2021-11-20 06:48:36,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:48:36,709 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 380 transitions. [2021-11-20 06:48:36,710 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) [2021-11-20 06:48:36,710 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 380 transitions. [2021-11-20 06:48:36,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-20 06:48:36,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:48:36,711 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] [2021-11-20 06:48:36,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:48:36,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 06:48:36,928 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 06:48:36,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:48:36,929 INFO L85 PathProgramCache]: Analyzing trace with hash 984432562, now seen corresponding path program 1 times [2021-11-20 06:48:36,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:48:36,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383063019] [2021-11-20 06:48:36,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:36,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:48:36,960 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:48:36,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515295266] [2021-11-20 06:48:36,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:48:36,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:48:36,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:48:36,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:48:36,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 06:48:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:48:37,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 66 conjunts are in the unsatisfiable core [2021-11-20 06:48:37,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:48:37,206 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 [2021-11-20 06:48:37,212 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 [2021-11-20 06:48:37,283 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-20 06:48:37,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-20 06:48:37,375 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 23 treesize of output 18 [2021-11-20 06:48:37,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:37,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2021-11-20 06:48:38,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 43 [2021-11-20 06:48:38,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-20 06:48:38,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2021-11-20 06:48:38,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-11-20 06:48:38,606 INFO L354 Elim1Store]: treesize reduction 19, result has 34.5 percent of original size [2021-11-20 06:48:38,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 29 [2021-11-20 06:48:38,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-11-20 06:48:38,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:38,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2021-11-20 06:48:38,762 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 51 treesize of output 43 [2021-11-20 06:48:38,772 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-20 06:48:38,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 24 [2021-11-20 06:48:40,275 INFO L354 Elim1Store]: treesize reduction 364, result has 11.9 percent of original size [2021-11-20 06:48:40,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2823 treesize of output 2272 [2021-11-20 06:48:40,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:45,803 WARN L227 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 311 DAG size of output: 84 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 06:48:45,804 INFO L354 Elim1Store]: treesize reduction 6541, result has 4.0 percent of original size [2021-11-20 06:48:45,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 3292 treesize of output 1828 [2021-11-20 06:48:45,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:46,944 INFO L354 Elim1Store]: treesize reduction 448, result has 17.8 percent of original size [2021-11-20 06:48:46,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2021 treesize of output 1763 [2021-11-20 06:48:47,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:47,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-20 06:48:47,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:47,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2021-11-20 06:48:48,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:48,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:48,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:48,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 63 [2021-11-20 06:48:50,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:50,034 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:48:50,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:50,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:50,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:48:50,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:50,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:50,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:50,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:50,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:50,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:50,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:48:50,213 INFO L244 Elim1Store]: Index analysis took 205 ms [2021-11-20 06:48:50,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 878 treesize of output 400 [2021-11-20 06:48:50,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:48:50,320 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:48:50,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:02,195 WARN L227 SmtUtils]: Spent 1.20m on a formula simplification. DAG size of input: 1408 DAG size of output: 355 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 06:50:02,198 INFO L354 Elim1Store]: treesize reduction 31640, result has 3.3 percent of original size [2021-11-20 06:50:02,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 24 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 36 new quantified variables, introduced 121 case distinctions, treesize of input 184816 treesize of output 85122 [2021-11-20 06:50:04,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:04,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:05,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:05,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:05,177 INFO L244 Elim1Store]: Index analysis took 281 ms [2021-11-20 06:50:05,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:05,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:05,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:05,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:05,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:05,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:05,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:05,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:05,396 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:50:05,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 1032 treesize of output 464 [2021-11-20 06:50:06,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,369 INFO L244 Elim1Store]: Index analysis took 441 ms [2021-11-20 06:50:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,552 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:50:06,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 664 treesize of output 300 [2021-11-20 06:50:06,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:06,930 INFO L244 Elim1Store]: Index analysis took 266 ms [2021-11-20 06:50:07,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,206 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:50:07,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 572 treesize of output 254 [2021-11-20 06:50:07,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,609 INFO L244 Elim1Store]: Index analysis took 310 ms [2021-11-20 06:50:07,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:50:07,912 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:50:07,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 1777 treesize of output 841 [2021-11-20 06:56:59,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:00,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:00,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:00,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:00,364 INFO L244 Elim1Store]: Index analysis took 1678 ms [2021-11-20 06:57:00,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:00,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:01,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:01,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:01,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:01,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:02,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:02,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:02,540 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:02,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 1271 treesize of output 563 [2021-11-20 06:57:02,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:02,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:02,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:02,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:02,965 INFO L354 Elim1Store]: treesize reduction 202, result has 0.5 percent of original size [2021-11-20 06:57:02,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 15901 treesize of output 12492 [2021-11-20 06:57:22,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:22,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:22,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:22,860 INFO L244 Elim1Store]: Index analysis took 211 ms [2021-11-20 06:57:22,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:22,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:22,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:22,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:23,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:23,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:23,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:23,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:23,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:23,163 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:23,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 10690 treesize of output 7633 [2021-11-20 06:57:27,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:27,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:27,648 INFO L244 Elim1Store]: Index analysis took 454 ms [2021-11-20 06:57:27,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:27,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:27,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:27,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:27,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:27,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:27,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:28,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:28,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:28,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:28,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:28,303 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:28,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 1527 treesize of output 671 [2021-11-20 06:57:28,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:28,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:28,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,153 INFO L244 Elim1Store]: Index analysis took 734 ms [2021-11-20 06:57:29,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:29,717 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:29,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 800 treesize of output 362 [2021-11-20 06:57:30,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:30,631 INFO L244 Elim1Store]: Index analysis took 763 ms [2021-11-20 06:57:30,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:30,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:30,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:30,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:30,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:30,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:31,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:31,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:31,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:31,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:31,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:31,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:31,352 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:31,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 1435 treesize of output 625 [2021-11-20 06:57:31,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:31,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:31,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:31,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:32,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:32,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:32,155 INFO L244 Elim1Store]: Index analysis took 647 ms [2021-11-20 06:57:32,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:32,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:32,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:32,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:32,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:32,548 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:32,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 608 treesize of output 272 [2021-11-20 06:57:32,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:32,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,131 INFO L244 Elim1Store]: Index analysis took 464 ms [2021-11-20 06:57:33,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:33,590 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:33,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 1447 treesize of output 631 [2021-11-20 06:57:33,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:33,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:34,235 INFO L354 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2021-11-20 06:57:34,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 12 new quantified variables, introduced 15 case distinctions, treesize of input 12023 treesize of output 6625 [2021-11-20 06:57:34,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:34,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:34,397 INFO L354 Elim1Store]: treesize reduction 162, result has 0.6 percent of original size [2021-11-20 06:57:34,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 10553 treesize of output 6928 [2021-11-20 06:57:34,454 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:34,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:34,563 INFO L354 Elim1Store]: treesize reduction 174, result has 0.6 percent of original size [2021-11-20 06:57:34,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 12 new quantified variables, introduced 15 case distinctions, treesize of input 9602 treesize of output 5756 [2021-11-20 06:57:34,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:34,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:34,793 INFO L354 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2021-11-20 06:57:34,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 8795 treesize of output 5830 [2021-11-20 06:57:34,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:34,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:34,857 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:35,021 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-11-20 06:57:35,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 7843 treesize of output 5190 [2021-11-20 06:57:35,061 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:35,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,241 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-11-20 06:57:35,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 6996 treesize of output 4619 [2021-11-20 06:57:35,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,281 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:35,442 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-11-20 06:57:35,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 6032 treesize of output 3967 [2021-11-20 06:57:35,478 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:35,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,562 INFO L354 Elim1Store]: treesize reduction 162, result has 0.6 percent of original size [2021-11-20 06:57:35,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 5044 treesize of output 3311 [2021-11-20 06:57:35,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:35,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,635 INFO L354 Elim1Store]: treesize reduction 162, result has 0.6 percent of original size [2021-11-20 06:57:35,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 4221 treesize of output 2324 [2021-11-20 06:57:35,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:35,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:36,233 INFO L354 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2021-11-20 06:57:36,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 12 new quantified variables, introduced 15 case distinctions, treesize of input 2963 treesize of output 1629 [2021-11-20 06:57:36,246 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:36,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:36,323 INFO L354 Elim1Store]: treesize reduction 2572, result has 0.0 percent of original size [2021-11-20 06:57:36,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1825 treesize of output 1303 [2021-11-20 06:57:37,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:37,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:37,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:37,410 INFO L354 Elim1Store]: treesize reduction 1200, result has 6.5 percent of original size [2021-11-20 06:57:37,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 828 treesize of output 836 [2021-11-20 06:57:37,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:37,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2021-11-20 06:57:37,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:37,713 INFO L354 Elim1Store]: treesize reduction 292, result has 15.4 percent of original size [2021-11-20 06:57:37,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 187 treesize of output 171 [2021-11-20 06:57:38,789 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:38,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,828 INFO L354 Elim1Store]: treesize reduction 162, result has 12.9 percent of original size [2021-11-20 06:57:38,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 311 treesize of output 214 [2021-11-20 06:57:38,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:38,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,045 INFO L354 Elim1Store]: treesize reduction 544, result has 12.3 percent of original size [2021-11-20 06:57:39,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 262 treesize of output 255 [2021-11-20 06:57:39,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:57:39,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:57:39,097 INFO L354 Elim1Store]: treesize reduction 122, result has 22.8 percent of original size [2021-11-20 06:57:39,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 211 treesize of output 201 [2021-11-20 06:57:40,024 INFO L354 Elim1Store]: treesize reduction 364, result has 39.8 percent of original size [2021-11-20 06:57:40,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 37 case distinctions, treesize of input 221 treesize of output 366 [2021-11-20 06:57:40,054 INFO L354 Elim1Store]: treesize reduction 38, result has 7.3 percent of original size [2021-11-20 06:57:40,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 345 treesize of output 259 [2021-11-20 06:57:40,143 INFO L354 Elim1Store]: treesize reduction 244, result has 11.6 percent of original size [2021-11-20 06:57:40,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 31 case distinctions, treesize of input 247 treesize of output 264 [2021-11-20 06:57:40,153 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:57:40,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 243 treesize of output 231 [2021-11-20 06:58:35,111 INFO L354 Elim1Store]: treesize reduction 344, result has 23.7 percent of original size [2021-11-20 06:58:35,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 243 treesize of output 270 [2021-11-20 06:59:15,178 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-20 06:59:15,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 213 treesize of output 113 [2021-11-20 06:59:15,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:59:15,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:59:15,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:59:15,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383063019] [2021-11-20 06:59:15,227 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:59:15,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515295266] [2021-11-20 06:59:15,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515295266] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:59:15,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:59:15,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 06:59:15,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770847712] [2021-11-20 06:59:15,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:59:15,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 06:59:15,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:59:15,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 06:59:15,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:59:15,230 INFO L87 Difference]: Start difference. First operand 305 states and 380 transitions. Second operand has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:59:17,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:59:17,760 INFO L93 Difference]: Finished difference Result 334 states and 420 transitions. [2021-11-20 06:59:17,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 06:59:17,762 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2021-11-20 06:59:17,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:59:17,765 INFO L225 Difference]: With dead ends: 334 [2021-11-20 06:59:17,765 INFO L226 Difference]: Without dead ends: 333 [2021-11-20 06:59:17,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:59:17,766 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 107 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 96 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:59:17,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 1501 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 495 Invalid, 0 Unknown, 96 Unchecked, 2.0s Time] [2021-11-20 06:59:17,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-11-20 06:59:17,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 331. [2021-11-20 06:59:17,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 318 states have (on average 1.2610062893081762) internal successors, (401), 324 states have internal predecessors, (401), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2021-11-20 06:59:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 416 transitions. [2021-11-20 06:59:17,784 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 416 transitions. Word has length 72 [2021-11-20 06:59:17,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:59:17,784 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 416 transitions. [2021-11-20 06:59:17,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:59:17,785 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 416 transitions. [2021-11-20 06:59:17,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-20 06:59:17,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:59:17,786 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] [2021-11-20 06:59:17,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:59:18,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 06:59:18,008 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 06:59:18,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:59:18,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1377459572, now seen corresponding path program 1 times [2021-11-20 06:59:18,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:59:18,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079902411] [2021-11-20 06:59:18,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:59:18,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:59:18,031 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:59:18,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1001092654] [2021-11-20 06:59:18,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:59:18,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:59:18,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:59:18,042 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:59:18,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 06:59:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:18,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:59:18,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:59:18,642 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:59:18,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:59:18,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:59:18,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079902411] [2021-11-20 06:59:18,643 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 06:59:18,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001092654] [2021-11-20 06:59:18,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001092654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:59:18,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:59:18,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:59:18,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791168155] [2021-11-20 06:59:18,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:59:18,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:59:18,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:59:18,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:59:18,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:59:18,645 INFO L87 Difference]: Start difference. First operand 331 states and 416 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:59:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:59:18,687 INFO L93 Difference]: Finished difference Result 589 states and 747 transitions. [2021-11-20 06:59:18,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:59:18,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2021-11-20 06:59:18,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:59:18,690 INFO L225 Difference]: With dead ends: 589 [2021-11-20 06:59:18,690 INFO L226 Difference]: Without dead ends: 311 [2021-11-20 06:59:18,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:59:18,691 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 2 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:59:18,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 692 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:59:18,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-11-20 06:59:18,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 308. [2021-11-20 06:59:18,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 297 states have (on average 1.2693602693602695) internal successors, (377), 303 states have internal predecessors, (377), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-20 06:59:18,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 384 transitions. [2021-11-20 06:59:18,707 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 384 transitions. Word has length 72 [2021-11-20 06:59:18,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:59:18,708 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 384 transitions. [2021-11-20 06:59:18,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:59:18,708 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 384 transitions. [2021-11-20 06:59:18,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-20 06:59:18,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:59:18,709 INFO L514 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] [2021-11-20 06:59:18,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:59:18,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:59:18,936 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 06:59:18,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:59:18,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1802358612, now seen corresponding path program 1 times [2021-11-20 06:59:18,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:59:18,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338353975] [2021-11-20 06:59:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:59:18,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:59:18,950 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 06:59:18,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1238879792] [2021-11-20 06:59:18,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:59:18,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:59:18,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:59:18,951 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:59:18,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 06:59:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:59:19,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 83 conjunts are in the unsatisfiable core [2021-11-20 06:59:19,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:59:19,156 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 [2021-11-20 06:59:19,183 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 [2021-11-20 06:59:19,283 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-20 06:59:19,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-20 06:59:19,386 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 23 treesize of output 18 [2021-11-20 06:59:19,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:19,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-20 06:59:21,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 43 [2021-11-20 06:59:21,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-20 06:59:21,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2021-11-20 06:59:21,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-11-20 06:59:21,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2021-11-20 06:59:21,532 INFO L354 Elim1Store]: treesize reduction 70, result has 23.1 percent of original size [2021-11-20 06:59:21,533 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 45 treesize of output 52 [2021-11-20 06:59:21,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:21,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2021-11-20 06:59:21,715 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 69 treesize of output 57 [2021-11-20 06:59:21,722 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-20 06:59:21,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 45 [2021-11-20 06:59:21,739 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 36 treesize of output 32 [2021-11-20 06:59:31,242 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-20 06:59:31,242 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 96 [2021-11-20 06:59:31,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:31,422 INFO L354 Elim1Store]: treesize reduction 126, result has 16.0 percent of original size [2021-11-20 06:59:31,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 132 treesize of output 131 [2021-11-20 06:59:31,505 INFO L354 Elim1Store]: treesize reduction 61, result has 12.9 percent of original size [2021-11-20 06:59:31,505 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 1 case distinctions, treesize of input 119 treesize of output 112 [2021-11-20 06:59:39,717 WARN L227 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 93 DAG size of output: 39 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 06:59:39,717 INFO L354 Elim1Store]: treesize reduction 547, result has 15.5 percent of original size [2021-11-20 06:59:39,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 2888 treesize of output 2358 [2021-11-20 06:59:39,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:55,161 WARN L227 SmtUtils]: Spent 15.40s on a formula simplification. DAG size of input: 367 DAG size of output: 102 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 06:59:55,162 INFO L354 Elim1Store]: treesize reduction 7848, result has 5.4 percent of original size [2021-11-20 06:59:55,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 3443 treesize of output 2142 [2021-11-20 06:59:55,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:59:59,294 INFO L354 Elim1Store]: treesize reduction 797, result has 18.9 percent of original size [2021-11-20 06:59:59,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 2432 treesize of output 2155 [2021-11-20 07:00:00,361 INFO L354 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2021-11-20 07:00:00,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 8921 treesize of output 8925 [2021-11-20 07:00:34,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:34,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2021-11-20 07:00:34,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:34,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 30 [2021-11-20 07:00:37,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,557 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:37,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,589 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:37,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:37,940 INFO L244 Elim1Store]: Index analysis took 410 ms [2021-11-20 07:00:37,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 18 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 968 treesize of output 464 [2021-11-20 07:00:38,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:38,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 241 treesize of output 162 [2021-11-20 07:00:38,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:38,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:43,818 INFO L354 Elim1Store]: treesize reduction 15508, result has 2.1 percent of original size [2021-11-20 07:00:43,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 16 new quantified variables, introduced 30 case distinctions, treesize of input 122412 treesize of output 63704 [2021-11-20 07:00:44,132 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 07:00:44,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:44,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:44,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:44,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:44,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:44,694 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:44,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:44,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:44,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:44,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:44,912 INFO L244 Elim1Store]: Index analysis took 297 ms [2021-11-20 07:00:45,460 INFO L354 Elim1Store]: treesize reduction 184, result has 49.3 percent of original size [2021-11-20 07:00:45,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 1901 treesize of output 1119 [2021-11-20 07:00:45,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:45,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:45,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:45,972 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:45,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:45,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:45,991 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:46,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:46,002 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:00:46,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:46,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:00:46,109 INFO L244 Elim1Store]: Index analysis took 186 ms [2021-11-20 07:00:46,450 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:00:46,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 1855 treesize of output 1175 [2021-11-20 07:01:35,718 INFO L354 Elim1Store]: treesize reduction 162, result has 16.9 percent of original size [2021-11-20 07:01:35,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 13 new quantified variables, introduced 13 case distinctions, treesize of input 9401 treesize of output 7352 [2021-11-20 07:01:45,199 INFO L354 Elim1Store]: treesize reduction 194, result has 0.5 percent of original size [2021-11-20 07:01:45,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 13 new quantified variables, introduced 13 case distinctions, treesize of input 7538 treesize of output 5871 [2021-11-20 07:01:45,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:45,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:45,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:45,468 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:45,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 4229 treesize of output 3633 [2021-11-20 07:01:45,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:45,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:45,766 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:45,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 59 [2021-11-20 07:01:45,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:45,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:45,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:45,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:45,926 INFO L354 Elim1Store]: treesize reduction 915, result has 0.8 percent of original size [2021-11-20 07:01:45,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 3192 treesize of output 2780 [2021-11-20 07:01:46,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:46,110 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:46,308 INFO L354 Elim1Store]: treesize reduction 144, result has 33.6 percent of original size [2021-11-20 07:01:46,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 8 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 11 new quantified variables, introduced 9 case distinctions, treesize of input 1511 treesize of output 729 [2021-11-20 07:01:46,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:46,533 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:46,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 129 treesize of output 69 [2021-11-20 07:01:46,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:46,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:46,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:46,637 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:46,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 137 treesize of output 69 [2021-11-20 07:01:46,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:46,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:46,674 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:46,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 928 treesize of output 627 [2021-11-20 07:01:47,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:47,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:47,012 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:47,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 133 treesize of output 69 [2021-11-20 07:01:47,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:47,046 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:47,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 291 treesize of output 154 [2021-11-20 07:01:47,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:47,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:47,165 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:01:47,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 129 treesize of output 65 [2021-11-20 07:01:47,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:47,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:47,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:47,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:47,194 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:47,203 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 07:01:47,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 262 treesize of output 122 [2021-11-20 07:01:50,536 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#Ultimate.C_memset_#t~loopctr231_6| Int) (|#Ultimate.C_memset_#value| Int) (|#Ultimate.C_memset_#ptr.offset| Int)) (let ((.cse0 (+ |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr231_6|))) (and (= |c_#memory_int| (store |c_old(#memory_int)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_int)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 |#Ultimate.C_memset_#value|))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 (mod |#Ultimate.C_memset_#value| 256)))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) .cse0 0)) |c_#memory_$Pointer$.base|)))) is different from true [2021-11-20 07:01:50,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:50,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:50,874 INFO L354 Elim1Store]: treesize reduction 188, result has 14.9 percent of original size [2021-11-20 07:01:50,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 332 treesize of output 176 [2021-11-20 07:01:50,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:50,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:51,019 INFO L354 Elim1Store]: treesize reduction 132, result has 21.4 percent of original size [2021-11-20 07:01:51,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 330 treesize of output 280 [2021-11-20 07:01:51,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:51,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:51,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:51,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:51,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:51,349 INFO L354 Elim1Store]: treesize reduction 626, result has 10.8 percent of original size [2021-11-20 07:01:51,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 305 treesize of output 312 [2021-11-20 07:01:53,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:53,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,284 INFO L354 Elim1Store]: treesize reduction 264, result has 11.1 percent of original size [2021-11-20 07:01:53,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 440 treesize of output 273 [2021-11-20 07:01:53,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,759 INFO L354 Elim1Store]: treesize reduction 866, result has 9.9 percent of original size [2021-11-20 07:01:53,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 16 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 41 case distinctions, treesize of input 391 treesize of output 387 [2021-11-20 07:01:53,772 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 07:01:53,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 07:01:53,907 INFO L354 Elim1Store]: treesize reduction 292, result has 15.9 percent of original size [2021-11-20 07:01:53,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 340 treesize of output 301 [2021-11-20 07:01:54,980 INFO L354 Elim1Store]: treesize reduction 98, result has 3.0 percent of original size [2021-11-20 07:01:54,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 334 treesize of output 217 [2021-11-20 07:01:54,999 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-11-20 07:01:54,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 199 treesize of output 169 [2021-11-20 07:01:55,469 INFO L354 Elim1Store]: treesize reduction 608, result has 12.9 percent of original size [2021-11-20 07:01:55,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 46 case distinctions, treesize of input 165 treesize of output 163 [2021-11-20 07:01:55,694 INFO L354 Elim1Store]: treesize reduction 396, result has 7.7 percent of original size [2021-11-20 07:01:55,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 40 case distinctions, treesize of input 139 treesize of output 151 [2021-11-20 07:01:56,640 INFO L354 Elim1Store]: treesize reduction 268, result has 15.7 percent of original size [2021-11-20 07:01:56,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 90 treesize of output 96 [2021-11-20 07:01:57,856 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-20 07:01:57,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 70 treesize of output 38 [2021-11-20 07:01:58,007 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2021-11-20 07:01:58,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:02:15,413 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 Int) (v_DerPreprocessor_14 Int) (v_DerPreprocessor_17 Int) (v_DerPreprocessor_15 Int) (|v_#Ultimate.C_memset_#t~loopctr231_11| Int) (v_DerPreprocessor_16 Int) (|v_#Ultimate.C_memset_#ptr.offset_5| Int) (|v_ULTIMATE.start_main_~_ha_head~0#1.offset_5| Int) (|v_#Ultimate.C_memset_#value_4| Int)) (<= (select (select (let ((.cse10 (+ |v_#Ultimate.C_memset_#t~loopctr231_11| |v_#Ultimate.C_memset_#ptr.offset_5|))) (let ((.cse14 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem49#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem49#1.base|) .cse10 (mod |v_#Ultimate.C_memset_#value_4| 256)))) (.cse13 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem49#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem49#1.base|) .cse10 0))) (.cse12 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse7 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse12)) (.cse9 (+ 12 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse12)))) (let ((.cse1 (select (let ((.cse11 (store .cse13 .cse7 (store (select .cse13 .cse7) .cse9 v_DerPreprocessor_16)))) (select .cse11 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse12))) (select (select (store .cse14 .cse7 (store (select .cse14 .cse7) .cse9 v_DerPreprocessor_17)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse12)))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_#t~mem49#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_#t~mem49#1.base|) .cse10 |v_#Ultimate.C_memset_#value_4|)))) (store .cse6 .cse7 (let ((.cse8 (select .cse6 .cse7))) (store .cse8 .cse9 (+ (select .cse8 .cse9) 1))))))) (store .cse3 .cse1 (let ((.cse4 (select .cse3 .cse1)) (.cse5 (+ |v_ULTIMATE.start_main_~_ha_head~0#1.offset_5| 4))) (store .cse4 .cse5 (+ (select .cse4 .cse5) 1))))))) (store .cse2 |c_ULTIMATE.start_main_~user~0#1.base| (store (store (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 24) v_DerPreprocessor_14) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 20) v_DerPreprocessor_15))))) (store .cse0 .cse1 (store (select .cse0 .cse1) |v_ULTIMATE.start_main_~_ha_head~0#1.offset_5| v_DerPreprocessor_13))))))) |c_ULTIMATE.start_main_~#i~0#1.base|) |c_ULTIMATE.start_main_~#i~0#1.offset|) 2147483646)) is different from false [2021-11-20 07:02:15,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:02:15,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338353975] [2021-11-20 07:02:15,469 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 07:02:15,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238879792] [2021-11-20 07:02:15,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238879792] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:02:15,469 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:02:15,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-11-20 07:02:15,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312554782] [2021-11-20 07:02:15,470 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-20 07:02:15,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-20 07:02:15,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:02:15,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-20 07:02:15,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=503, Unknown=11, NotChecked=94, Total=702 [2021-11-20 07:02:15,472 INFO L87 Difference]: Start difference. First operand 308 states and 384 transitions. Second operand has 20 states, 17 states have (on average 4.117647058823529) internal successors, (70), 19 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:02:23,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:02:23,662 INFO L93 Difference]: Finished difference Result 344 states and 431 transitions. [2021-11-20 07:02:23,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 07:02:23,665 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 4.117647058823529) internal successors, (70), 19 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2021-11-20 07:02:23,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:02:23,668 INFO L225 Difference]: With dead ends: 344 [2021-11-20 07:02:23,668 INFO L226 Difference]: Without dead ends: 341 [2021-11-20 07:02:23,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 64 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 36.3s TimeCoverageRelationStatistics Valid=112, Invalid=585, Unknown=13, NotChecked=102, Total=812 [2021-11-20 07:02:23,670 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 104 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 564 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:02:23,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 1597 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 499 Invalid, 0 Unknown, 564 Unchecked, 3.6s Time] [2021-11-20 07:02:23,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-11-20 07:02:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2021-11-20 07:02:23,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 324 states have (on average 1.2623456790123457) internal successors, (409), 331 states have internal predecessors, (409), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2021-11-20 07:02:23,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 425 transitions. [2021-11-20 07:02:23,695 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 425 transitions. Word has length 74 [2021-11-20 07:02:23,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:02:23,696 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 425 transitions. [2021-11-20 07:02:23,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 4.117647058823529) internal successors, (70), 19 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:02:23,696 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 425 transitions. [2021-11-20 07:02:23,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-20 07:02:23,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:02:23,698 INFO L514 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] [2021-11-20 07:02:23,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:23,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-20 07:02:23,924 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 07:02:23,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:23,925 INFO L85 PathProgramCache]: Analyzing trace with hash -2099581674, now seen corresponding path program 1 times [2021-11-20 07:02:23,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:23,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231952940] [2021-11-20 07:02:23,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:23,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:23,941 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 07:02:23,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1560166476] [2021-11-20 07:02:23,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:23,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:02:23,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:23,957 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:02:23,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_222a4974-1ec7-4208-b2b0-7f4981d13177/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process