./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/add-2-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/add-2-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7202e877c1332442c2c226005d8bd7e5f4094e339ca214931497ee0f3766da6a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 13:45:18,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:45:18,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:45:18,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:45:18,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:45:18,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:45:18,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:45:18,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:45:18,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:45:18,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:45:18,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:45:18,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:45:18,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:45:18,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:45:18,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:45:19,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:45:19,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:45:19,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:45:19,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:45:19,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:45:19,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:45:19,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:45:19,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:45:19,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:45:19,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:45:19,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:45:19,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:45:19,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:45:19,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:45:19,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:45:19,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:45:19,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:45:19,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:45:19,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:45:19,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:45:19,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:45:19,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:45:19,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:45:19,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:45:19,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:45:19,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:45:19,050 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 13:45:19,084 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:45:19,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:45:19,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:45:19,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:45:19,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:45:19,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:45:19,086 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:45:19,086 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:45:19,086 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:45:19,087 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:45:19,088 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:45:19,088 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:45:19,088 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:45:19,088 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:45:19,089 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:45:19,089 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:45:19,089 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:45:19,089 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:45:19,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:45:19,091 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:45:19,091 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 13:45:19,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:45:19,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:45:19,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:45:19,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:45:19,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:45:19,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:45:19,092 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 13:45:19,093 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:45:19,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:45:19,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:45:19,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:45:19,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:45:19,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:45:19,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:45:19,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:45:19,096 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:45:19,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:45:19,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:45:19,097 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:45:19,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:45:19,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:45:19,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:45:19,097 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_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7202e877c1332442c2c226005d8bd7e5f4094e339ca214931497ee0f3766da6a [2022-11-23 13:45:19,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:45:19,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:45:19,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:45:19,388 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:45:19,389 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:45:19,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/array-multidimensional/add-2-n-u.c [2022-11-23 13:45:22,486 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:45:22,760 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:45:22,760 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/sv-benchmarks/c/array-multidimensional/add-2-n-u.c [2022-11-23 13:45:22,769 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/data/86b0632b4/f5f351d4d4e14bf0ad97b47ee05bdcdb/FLAG18d8a784e [2022-11-23 13:45:22,788 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/data/86b0632b4/f5f351d4d4e14bf0ad97b47ee05bdcdb [2022-11-23 13:45:22,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:45:22,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:45:22,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:45:22,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:45:22,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:45:22,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:45:22" (1/1) ... [2022-11-23 13:45:22,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c25215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:22, skipping insertion in model container [2022-11-23 13:45:22,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:45:22" (1/1) ... [2022-11-23 13:45:22,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:45:22,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:45:23,008 WARN L237 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_32bbbc51-274d-467f-93c0-e87cb3582060/sv-benchmarks/c/array-multidimensional/add-2-n-u.c[321,334] [2022-11-23 13:45:23,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:45:23,039 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:45:23,050 WARN L237 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_32bbbc51-274d-467f-93c0-e87cb3582060/sv-benchmarks/c/array-multidimensional/add-2-n-u.c[321,334] [2022-11-23 13:45:23,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:45:23,074 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:45:23,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23 WrapperNode [2022-11-23 13:45:23,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:45:23,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:45:23,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:45:23,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:45:23,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (1/1) ... [2022-11-23 13:45:23,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (1/1) ... [2022-11-23 13:45:23,113 INFO L138 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 104 [2022-11-23 13:45:23,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:45:23,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:45:23,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:45:23,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:45:23,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (1/1) ... [2022-11-23 13:45:23,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (1/1) ... [2022-11-23 13:45:23,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (1/1) ... [2022-11-23 13:45:23,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (1/1) ... [2022-11-23 13:45:23,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (1/1) ... [2022-11-23 13:45:23,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (1/1) ... [2022-11-23 13:45:23,135 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (1/1) ... [2022-11-23 13:45:23,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (1/1) ... [2022-11-23 13:45:23,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:45:23,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:45:23,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:45:23,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:45:23,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (1/1) ... [2022-11-23 13:45:23,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:45:23,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:45:23,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:45:23,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:45:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:45:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:45:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:45:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:45:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:45:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:45:23,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:45:23,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:45:23,326 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:45:23,328 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:45:23,588 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:45:23,655 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:45:23,655 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 13:45:23,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:23 BoogieIcfgContainer [2022-11-23 13:45:23,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:45:23,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:45:23,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:45:23,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:45:23,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:45:22" (1/3) ... [2022-11-23 13:45:23,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412e478f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:45:23, skipping insertion in model container [2022-11-23 13:45:23,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:23" (2/3) ... [2022-11-23 13:45:23,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412e478f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:45:23, skipping insertion in model container [2022-11-23 13:45:23,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:23" (3/3) ... [2022-11-23 13:45:23,667 INFO L112 eAbstractionObserver]: Analyzing ICFG add-2-n-u.c [2022-11-23 13:45:23,686 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:45:23,686 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-23 13:45:23,765 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:45:23,772 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7befeb2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:45:23,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-23 13:45:23,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 31 states have internal predecessors, (37), 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) [2022-11-23 13:45:23,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 13:45:23,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:45:23,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 13:45:23,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 13:45:23,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:45:23,792 INFO L85 PathProgramCache]: Analyzing trace with hash 4393844, now seen corresponding path program 1 times [2022-11-23 13:45:23,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:45:23,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249808822] [2022-11-23 13:45:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:23,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:45:23,900 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:45:23,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980437870] [2022-11-23 13:45:23,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:23,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:23,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:45:23,906 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:45:23,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:45:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:45:23,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 13:45:24,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:45:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:45:24,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:45:24,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:45:24,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249808822] [2022-11-23 13:45:24,036 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 13:45:24,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980437870] [2022-11-23 13:45:24,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980437870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:45:24,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:45:24,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 13:45:24,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338976497] [2022-11-23 13:45:24,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:45:24,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:45:24,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:45:24,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:45:24,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:45:24,077 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 13:45:24,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:45:24,139 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-11-23 13:45:24,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:45:24,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-23 13:45:24,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:45:24,149 INFO L225 Difference]: With dead ends: 32 [2022-11-23 13:45:24,150 INFO L226 Difference]: Without dead ends: 28 [2022-11-23 13:45:24,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:45:24,160 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:45:24,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 12 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:45:24,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-23 13:45:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-23 13:45:24,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.736842105263158) internal successors, (33), 27 states have internal predecessors, (33), 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) [2022-11-23 13:45:24,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-11-23 13:45:24,203 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 4 [2022-11-23 13:45:24,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:45:24,203 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-11-23 13:45:24,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 13:45:24,204 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-11-23 13:45:24,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 13:45:24,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:45:24,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 13:45:24,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 13:45:24,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 13:45:24,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 13:45:24,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:45:24,408 INFO L85 PathProgramCache]: Analyzing trace with hash 4390489, now seen corresponding path program 1 times [2022-11-23 13:45:24,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:45:24,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757366953] [2022-11-23 13:45:24,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:24,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:45:24,423 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:45:24,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [130405805] [2022-11-23 13:45:24,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:24,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:24,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:45:24,426 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:45:24,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 13:45:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:45:24,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 13:45:24,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:45:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:45:24,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:45:24,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:45:24,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757366953] [2022-11-23 13:45:24,513 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 13:45:24,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130405805] [2022-11-23 13:45:24,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130405805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:45:24,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:45:24,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:45:24,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109945673] [2022-11-23 13:45:24,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:45:24,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:45:24,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:45:24,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:45:24,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:45:24,519 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-23 13:45:24,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:45:24,590 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2022-11-23 13:45:24,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:45:24,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-23 13:45:24,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:45:24,592 INFO L225 Difference]: With dead ends: 28 [2022-11-23 13:45:24,592 INFO L226 Difference]: Without dead ends: 25 [2022-11-23 13:45:24,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:45:24,594 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:45:24,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:45:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-23 13:45:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-23 13:45:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 24 states have internal predecessors, (30), 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) [2022-11-23 13:45:24,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-11-23 13:45:24,600 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 4 [2022-11-23 13:45:24,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:45:24,600 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-11-23 13:45:24,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-23 13:45:24,601 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-11-23 13:45:24,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 13:45:24,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:45:24,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 13:45:24,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 13:45:24,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:24,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 13:45:24,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:45:24,803 INFO L85 PathProgramCache]: Analyzing trace with hash 136209225, now seen corresponding path program 1 times [2022-11-23 13:45:24,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:45:24,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348832796] [2022-11-23 13:45:24,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:24,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:45:24,814 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:45:24,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [669506473] [2022-11-23 13:45:24,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:24,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:24,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:45:24,816 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:45:24,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 13:45:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:45:24,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 13:45:24,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:45:24,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:45:24,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:45:24,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:45:24,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348832796] [2022-11-23 13:45:24,923 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 13:45:24,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669506473] [2022-11-23 13:45:24,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669506473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:45:24,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:45:24,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 13:45:24,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130142569] [2022-11-23 13:45:24,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:45:24,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:45:24,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:45:24,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:45:24,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:45:24,926 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-23 13:45:25,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:45:25,016 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2022-11-23 13:45:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:45:25,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-23 13:45:25,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:45:25,021 INFO L225 Difference]: With dead ends: 49 [2022-11-23 13:45:25,021 INFO L226 Difference]: Without dead ends: 46 [2022-11-23 13:45:25,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:45:25,026 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 18 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:45:25,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 21 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:45:25,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-23 13:45:25,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2022-11-23 13:45:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 42 states have internal predecessors, (56), 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) [2022-11-23 13:45:25,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2022-11-23 13:45:25,045 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 5 [2022-11-23 13:45:25,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:45:25,046 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2022-11-23 13:45:25,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-23 13:45:25,046 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2022-11-23 13:45:25,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 13:45:25,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:45:25,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 13:45:25,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 13:45:25,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:25,253 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 13:45:25,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:45:25,255 INFO L85 PathProgramCache]: Analyzing trace with hash 136105213, now seen corresponding path program 1 times [2022-11-23 13:45:25,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:45:25,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874056182] [2022-11-23 13:45:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:45:25,266 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:45:25,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274260156] [2022-11-23 13:45:25,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:25,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:25,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:45:25,268 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:45:25,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 13:45:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:45:25,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 13:45:25,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:45:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:45:25,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:45:25,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:45:25,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874056182] [2022-11-23 13:45:25,368 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 13:45:25,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274260156] [2022-11-23 13:45:25,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274260156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:45:25,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:45:25,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:45:25,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785332336] [2022-11-23 13:45:25,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:45:25,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:45:25,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:45:25,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:45:25,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:45:25,372 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-23 13:45:25,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:45:25,462 INFO L93 Difference]: Finished difference Result 82 states and 106 transitions. [2022-11-23 13:45:25,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:45:25,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-23 13:45:25,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:45:25,465 INFO L225 Difference]: With dead ends: 82 [2022-11-23 13:45:25,469 INFO L226 Difference]: Without dead ends: 79 [2022-11-23 13:45:25,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:45:25,473 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:45:25,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 24 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:45:25,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-23 13:45:25,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 61. [2022-11-23 13:45:25,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 60 states have internal predecessors, (80), 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) [2022-11-23 13:45:25,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-11-23 13:45:25,483 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 5 [2022-11-23 13:45:25,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:45:25,483 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-11-23 13:45:25,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-23 13:45:25,483 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-11-23 13:45:25,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 13:45:25,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:45:25,484 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-11-23 13:45:25,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 13:45:25,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:25,692 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 13:45:25,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:45:25,692 INFO L85 PathProgramCache]: Analyzing trace with hash 261322775, now seen corresponding path program 1 times [2022-11-23 13:45:25,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:45:25,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256191621] [2022-11-23 13:45:25,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:25,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:45:25,703 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:45:25,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1011367251] [2022-11-23 13:45:25,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:25,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:25,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:45:25,716 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:45:25,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 13:45:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:45:25,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:45:25,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:45:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:45:25,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:45:25,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:45:25,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:45:25,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256191621] [2022-11-23 13:45:25,933 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 13:45:25,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011367251] [2022-11-23 13:45:25,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011367251] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:45:25,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2063807988] [2022-11-23 13:45:25,961 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-23 13:45:25,961 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:45:25,964 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:45:25,970 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:45:25,970 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:45:26,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:26,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:26,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:26,206 INFO L321 Elim1Store]: treesize reduction 176, result has 23.1 percent of original size [2022-11-23 13:45:26,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 78 [2022-11-23 13:45:26,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:26,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:26,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:26,452 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-23 13:45:26,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-23 13:45:26,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:26,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:26,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 53 [2022-11-23 13:45:26,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:26,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:26,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:26,943 INFO L321 Elim1Store]: treesize reduction 124, result has 16.2 percent of original size [2022-11-23 13:45:26,944 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 432 treesize of output 408 [2022-11-23 13:45:27,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:27,406 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:27,406 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:27,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:27,488 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:27,489 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:27,517 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:45:28,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2063807988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:45:28,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 13:45:28,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 8 [2022-11-23 13:45:28,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308715292] [2022-11-23 13:45:28,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:45:28,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:45:28,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:45:28,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:45:28,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-23 13:45:28,143 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-23 13:45:28,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:45:28,336 INFO L93 Difference]: Finished difference Result 115 states and 150 transitions. [2022-11-23 13:45:28,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:45:28,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 8 [2022-11-23 13:45:28,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:45:28,337 INFO L225 Difference]: With dead ends: 115 [2022-11-23 13:45:28,337 INFO L226 Difference]: Without dead ends: 62 [2022-11-23 13:45:28,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-23 13:45:28,339 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:45:28,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 17 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:45:28,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-23 13:45:28,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-23 13:45:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 61 states have internal predecessors, (78), 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) [2022-11-23 13:45:28,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2022-11-23 13:45:28,351 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 8 [2022-11-23 13:45:28,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:45:28,352 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-11-23 13:45:28,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-23 13:45:28,352 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2022-11-23 13:45:28,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 13:45:28,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:45:28,353 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-23 13:45:28,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 13:45:28,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:28,558 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 13:45:28,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:45:28,559 INFO L85 PathProgramCache]: Analyzing trace with hash -980966336, now seen corresponding path program 1 times [2022-11-23 13:45:28,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:45:28,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869994300] [2022-11-23 13:45:28,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:28,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:45:28,569 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:45:28,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142660599] [2022-11-23 13:45:28,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:28,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:28,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:45:28,571 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:45:28,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 13:45:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:45:28,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 13:45:28,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:45:28,700 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:45:28,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:45:28,745 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:45:28,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:45:28,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869994300] [2022-11-23 13:45:28,746 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 13:45:28,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142660599] [2022-11-23 13:45:28,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142660599] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:45:28,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1822063314] [2022-11-23 13:45:28,749 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-23 13:45:28,749 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:45:28,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:45:28,750 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:45:28,750 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:45:28,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:28,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:28,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:28,907 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-23 13:45:28,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-23 13:45:28,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:28,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:28,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:28,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 58 [2022-11-23 13:45:28,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:28,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:28,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 53 [2022-11-23 13:45:29,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:29,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:29,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:29,184 INFO L321 Elim1Store]: treesize reduction 124, result has 16.2 percent of original size [2022-11-23 13:45:29,184 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 432 treesize of output 408 [2022-11-23 13:45:29,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:29,463 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:29,464 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:29,557 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:29,569 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:29,569 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:29,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:29,626 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:29,626 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:29,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:29,691 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:29,691 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:29,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:29,792 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:29,793 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:29,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:29,839 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:29,839 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:29,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:29,902 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:29,902 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:29,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:29,962 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:29,963 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:29,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:30,010 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:30,011 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:30,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:30,085 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:30,086 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:30,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:30,149 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:30,149 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:30,156 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:45:30,833 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '899#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-23 13:45:30,834 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 13:45:30,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 13:45:30,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-11-23 13:45:30,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814551770] [2022-11-23 13:45:30,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 13:45:30,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 13:45:30,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:45:30,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 13:45:30,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-11-23 13:45:30,835 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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) [2022-11-23 13:45:31,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:45:31,057 INFO L93 Difference]: Finished difference Result 198 states and 272 transitions. [2022-11-23 13:45:31,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 13:45:31,058 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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 15 [2022-11-23 13:45:31,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:45:31,059 INFO L225 Difference]: With dead ends: 198 [2022-11-23 13:45:31,059 INFO L226 Difference]: Without dead ends: 145 [2022-11-23 13:45:31,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2022-11-23 13:45:31,060 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 146 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:45:31,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 30 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:45:31,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-23 13:45:31,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 139. [2022-11-23 13:45:31,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 133 states have (on average 1.2030075187969924) internal successors, (160), 138 states have internal predecessors, (160), 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) [2022-11-23 13:45:31,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 160 transitions. [2022-11-23 13:45:31,079 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 160 transitions. Word has length 15 [2022-11-23 13:45:31,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:45:31,079 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 160 transitions. [2022-11-23 13:45:31,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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) [2022-11-23 13:45:31,080 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 160 transitions. [2022-11-23 13:45:31,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-23 13:45:31,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:45:31,081 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 2, 1, 1, 1, 1, 1] [2022-11-23 13:45:31,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 13:45:31,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:31,286 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-23 13:45:31,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:45:31,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1053609920, now seen corresponding path program 1 times [2022-11-23 13:45:31,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:45:31,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574924895] [2022-11-23 13:45:31,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:31,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:45:31,309 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:45:31,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2021526232] [2022-11-23 13:45:31,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:45:31,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:31,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:45:31,311 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:45:31,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 13:45:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:45:31,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 13:45:31,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:45:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 77 proven. 51 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 13:45:31,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:45:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 77 proven. 51 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 13:45:31,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:45:31,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574924895] [2022-11-23 13:45:31,714 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 13:45:31,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021526232] [2022-11-23 13:45:31,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021526232] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:45:31,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1873023811] [2022-11-23 13:45:31,717 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-23 13:45:31,717 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:45:31,717 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:45:31,717 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:45:31,717 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:45:31,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:31,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:31,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:31,874 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-23 13:45:31,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-23 13:45:31,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:31,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:31,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:31,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 58 [2022-11-23 13:45:31,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:31,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:31,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 53 [2022-11-23 13:45:32,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:32,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:45:32,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,119 INFO L321 Elim1Store]: treesize reduction 124, result has 16.2 percent of original size [2022-11-23 13:45:32,120 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 432 treesize of output 408 [2022-11-23 13:45:32,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,326 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:32,326 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:32,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,416 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:32,416 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:32,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,468 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:32,472 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:32,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,534 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:32,534 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:32,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,628 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:32,629 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:32,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,673 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:32,674 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:32,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,728 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:32,729 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:32,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,789 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:32,789 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:32,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,832 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:32,833 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:32,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,907 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:32,908 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:32,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:45:32,964 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-23 13:45:32,965 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-23 13:45:32,975 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 13:45:33,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1873023811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:45:33,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 13:45:33,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 9] total 21 [2022-11-23 13:45:33,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833456229] [2022-11-23 13:45:33,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:45:33,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:45:33,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:45:33,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:45:33,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 [2022-11-23 13:45:33,656 INFO L87 Difference]: Start difference. First operand 139 states and 160 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-23 13:45:34,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:45:34,339 INFO L93 Difference]: Finished difference Result 139 states and 160 transitions. [2022-11-23 13:45:34,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 13:45:34,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 36 [2022-11-23 13:45:34,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:45:34,340 INFO L225 Difference]: With dead ends: 139 [2022-11-23 13:45:34,340 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 13:45:34,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2022-11-23 13:45:34,342 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:45:34,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:45:34,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 13:45:34,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 13:45:34,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-23 13:45:34,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 13:45:34,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2022-11-23 13:45:34,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:45:34,343 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 13:45:34,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-23 13:45:34,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 13:45:34,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 13:45:34,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-23 13:45:34,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-23 13:45:34,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-23 13:45:34,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-23 13:45:34,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-23 13:45:34,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-23 13:45:34,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-23 13:45:34,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-23 13:45:34,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-23 13:45:34,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-23 13:45:34,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-23 13:45:34,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-23 13:45:34,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 13:45:34,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:45:34,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 13:45:35,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-23 13:45:35,559 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 52 60) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse3 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse4 (= |#NULL.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse6 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|)) (.cse8 (<= 0 |#StackHeapBarrier|)) (.cse9 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse10 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) .cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 1500 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))) [2022-11-23 13:45:35,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-11-23 13:45:35,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-23 13:45:35,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 13:45:35,560 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2022-11-23 13:45:35,560 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2022-11-23 13:45:35,560 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-23 13:45:35,560 INFO L895 garLoopResultBuilder]: At program point L54-2(lines 54 58) the Hoare annotation is: (and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1000) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-23 13:45:35,560 INFO L899 garLoopResultBuilder]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2022-11-23 13:45:35,561 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2022-11-23 13:45:35,561 INFO L895 garLoopResultBuilder]: At program point L38-2(lines 38 46) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse3 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse4 (= |#NULL.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse6 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|)) (.cse8 (<= 0 |#StackHeapBarrier|)) (.cse9 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse10 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) .cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 1500 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))) [2022-11-23 13:45:35,561 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-11-23 13:45:35,561 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2022-11-23 13:45:35,561 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-11-23 13:45:35,561 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-11-23 13:45:35,562 INFO L895 garLoopResultBuilder]: At program point L40-2(lines 40 44) the Hoare annotation is: (and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1000) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-23 13:45:35,562 INFO L899 garLoopResultBuilder]: For program point L40-3(lines 40 44) no Hoare annotation was computed. [2022-11-23 13:45:35,562 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-23 13:45:35,562 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-11-23 13:45:35,562 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2022-11-23 13:45:35,563 INFO L899 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2022-11-23 13:45:35,563 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 33) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse2 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse3 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse4 (= |#NULL.offset| 0)) (.cse6 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse7 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse8 (= |#NULL.base| 0))) (or (let ((.cse0 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4)) (.cse5 (select |#memory_int| 1))) (and (= .cse0 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= (select |#length| |ULTIMATE.start_main_~#C~0#1.base|) .cse0) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~i~0#1| 0) .cse1 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) .cse2 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#C~0#1.base|) (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse0) (= (select |#valid| |ULTIMATE.start_main_~#C~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) .cse3 (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 12 (select |#length| 2)) (= (select |#valid| 2) 1) .cse4 (= (select .cse5 0) 48) (not (= |ULTIMATE.start_main_~#C~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~j~0#1| 0) .cse6 (= (select .cse5 1) 0) (not (= |ULTIMATE.start_main_~#C~0#1.base| |ULTIMATE.start_main_~#B~0#1.base|)) .cse7 (< 0 |#StackHeapBarrier|) .cse8)) (and .cse1 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 1500 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) .cse3 .cse4 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) .cse6 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) .cse7 .cse8))) [2022-11-23 13:45:35,563 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 13:45:35,563 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-11-23 13:45:35,564 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-23 13:45:35,564 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-11-23 13:45:35,564 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 26 31) the Hoare annotation is: (and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1000) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-23 13:45:35,564 INFO L899 garLoopResultBuilder]: For program point L26-3(lines 26 31) no Hoare annotation was computed. [2022-11-23 13:45:35,564 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2022-11-23 13:45:35,564 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-11-23 13:45:35,565 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-11-23 13:45:35,568 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:45:35,570 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:45:35,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:45:35 BoogieIcfgContainer [2022-11-23 13:45:35,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:45:35,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:45:35,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:45:35,608 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:45:35,609 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:23" (3/4) ... [2022-11-23 13:45:35,612 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 13:45:35,623 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-23 13:45:35,623 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 13:45:35,625 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 13:45:35,625 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 13:45:35,675 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 13:45:35,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:45:35,677 INFO L158 Benchmark]: Toolchain (without parser) took 12883.63ms. Allocated memory was 220.2MB in the beginning and 318.8MB in the end (delta: 98.6MB). Free memory was 188.0MB in the beginning and 282.5MB in the end (delta: -94.4MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-11-23 13:45:35,678 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 136.3MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:45:35,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.87ms. Allocated memory is still 220.2MB. Free memory was 188.0MB in the beginning and 177.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 13:45:35,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.92ms. Allocated memory is still 220.2MB. Free memory was 177.5MB in the beginning and 175.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:45:35,679 INFO L158 Benchmark]: Boogie Preprocessor took 24.75ms. Allocated memory is still 220.2MB. Free memory was 175.5MB in the beginning and 174.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:45:35,679 INFO L158 Benchmark]: RCFGBuilder took 518.93ms. Allocated memory is still 220.2MB. Free memory was 174.3MB in the beginning and 157.7MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 13:45:35,680 INFO L158 Benchmark]: TraceAbstraction took 11947.05ms. Allocated memory was 220.2MB in the beginning and 318.8MB in the end (delta: 98.6MB). Free memory was 156.6MB in the beginning and 285.6MB in the end (delta: -129.0MB). Peak memory consumption was 154.3MB. Max. memory is 16.1GB. [2022-11-23 13:45:35,680 INFO L158 Benchmark]: Witness Printer took 67.38ms. Allocated memory is still 318.8MB. Free memory was 285.6MB in the beginning and 282.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 13:45:35,682 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 136.3MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.87ms. Allocated memory is still 220.2MB. Free memory was 188.0MB in the beginning and 177.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.92ms. Allocated memory is still 220.2MB. Free memory was 177.5MB in the beginning and 175.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.75ms. Allocated memory is still 220.2MB. Free memory was 175.5MB in the beginning and 174.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 518.93ms. Allocated memory is still 220.2MB. Free memory was 174.3MB in the beginning and 157.7MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11947.05ms. Allocated memory was 220.2MB in the beginning and 318.8MB in the end (delta: 98.6MB). Free memory was 156.6MB in the beginning and 285.6MB in the end (delta: -129.0MB). Peak memory consumption was 154.3MB. Max. memory is 16.1GB. * Witness Printer took 67.38ms. Allocated memory is still 318.8MB. Free memory was 285.6MB in the beginning and 282.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 11.8s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 250 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 250 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 375 IncrementalHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 80 mSDtfsCounter, 375 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred in iteration=6, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 27 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 54 NumberOfFragments, 502 HoareAnnotationTreeSize, 6 FomulaSimplifications, 270 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 1975 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 438 SizeOfPredicates, 4 NumberOfNonLiveVariables, 773 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 202/320 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 2.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 14, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 67, TOOLS_POST_TIME: 2.5s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 67, TOOLS_QUANTIFIERELIM_TIME: 2.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.5s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 123, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 11, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 17, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME: 1.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 17, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 142, DAG_COMPRESSION_RETAINED_NODES: 54, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && i <= 1000) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((((((((((((m == 1000 && C == 0) && 0 <= A) && i <= 0) && 0 <= j) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) && j <= 0) || (((((((((((((m == 1000 && 1 <= i) && 1500 <= j) && i <= 2147483647) && C == 0) && 0 <= A) && A == 0) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((m * n % 1073741824 * 4 == unknown-#length-unknown[B] && unknown-#length-unknown[C] == m * n % 1073741824 * 4) && unknown-#length-unknown[3] == 12) && i == 0) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && C == 0) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[A] == 1) && unknown-#StackHeapBarrier-unknown < C) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && \valid[C] == 1) && \valid[B] == 1) && A == 0) && \valid[1] == 1) && \valid[0] == 0) && 12 == unknown-#length-unknown[2]) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && !(C == A)) && !(B == A)) && j == 0) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && !(C == B)) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((m == 1000 && 1 <= i) && 1500 <= j) && i <= 2147483647) && C == 0) && 0 <= A) && A == 0) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && i <= 1000) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && i <= 1000) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((((((((((m == 1000 && C == 0) && 0 <= A) && i <= 0) && 0 <= j) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) && j <= 0) || (((((((((((((m == 1000 && 1 <= i) && 1500 <= j) && i <= 2147483647) && C == 0) && 0 <= A) && A == 0) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-23 13:45:35,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32bbbc51-274d-467f-93c0-e87cb3582060/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE