./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh --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 efbd812580893a7521723358e51d4f43c4b930b57b026212f5a7d5f447f3e0f8 --- 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-2329fc7 [2022-12-14 07:56:59,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:56:59,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:56:59,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:56:59,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:56:59,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:56:59,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:56:59,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:56:59,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:56:59,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:56:59,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:56:59,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:56:59,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:56:59,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:56:59,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:56:59,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:56:59,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:56:59,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:56:59,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:56:59,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:56:59,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:56:59,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:56:59,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:56:59,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:56:59,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:56:59,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:56:59,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:56:59,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:56:59,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:56:59,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:56:59,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:56:59,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:56:59,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:56:59,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:56:59,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:56:59,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:56:59,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:56:59,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:56:59,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:56:59,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:56:59,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:56:59,951 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 07:56:59,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:56:59,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:56:59,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:56:59,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:56:59,967 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:56:59,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:56:59,968 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:56:59,968 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:56:59,968 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:56:59,968 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:56:59,968 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:56:59,968 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:56:59,968 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:56:59,969 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:56:59,969 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:56:59,969 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:56:59,969 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:56:59,969 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:56:59,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:56:59,970 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:56:59,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:56:59,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:56:59,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:56:59,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:56:59,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:56:59,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:56:59,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:56:59,971 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 07:56:59,971 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:56:59,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:56:59,971 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:56:59,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:56:59,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:56:59,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:56:59,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:56:59,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:56:59,972 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:56:59,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:56:59,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:56:59,972 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:56:59,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:56:59,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:56:59,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:56:59,973 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_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efbd812580893a7521723358e51d4f43c4b930b57b026212f5a7d5f447f3e0f8 [2022-12-14 07:57:00,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:57:00,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:57:00,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:57:00,157 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:57:00,157 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:57:00,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c [2022-12-14 07:57:02,733 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:57:02,876 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:57:02,877 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/sv-benchmarks/c/array-multidimensional/add-3-n-u.c [2022-12-14 07:57:02,882 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/data/5b38bbd87/ceb6bcafbc964838843b48cff942350a/FLAG69ebfc26f [2022-12-14 07:57:02,895 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/data/5b38bbd87/ceb6bcafbc964838843b48cff942350a [2022-12-14 07:57:02,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:57:02,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:57:02,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:57:02,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:57:02,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:57:02,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:57:02" (1/1) ... [2022-12-14 07:57:02,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495bca90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:02, skipping insertion in model container [2022-12-14 07:57:02,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:57:02" (1/1) ... [2022-12-14 07:57:02,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:57:02,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:57:03,063 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_788b50bd-57f4-4217-8fe1-ab20f866ac15/sv-benchmarks/c/array-multidimensional/add-3-n-u.c[321,334] [2022-12-14 07:57:03,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:57:03,093 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:57:03,104 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_788b50bd-57f4-4217-8fe1-ab20f866ac15/sv-benchmarks/c/array-multidimensional/add-3-n-u.c[321,334] [2022-12-14 07:57:03,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:57:03,129 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:57:03,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03 WrapperNode [2022-12-14 07:57:03,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:57:03,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:57:03,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:57:03,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:57:03,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (1/1) ... [2022-12-14 07:57:03,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (1/1) ... [2022-12-14 07:57:03,157 INFO L138 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2022-12-14 07:57:03,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:57:03,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:57:03,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:57:03,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:57:03,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (1/1) ... [2022-12-14 07:57:03,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (1/1) ... [2022-12-14 07:57:03,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (1/1) ... [2022-12-14 07:57:03,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (1/1) ... [2022-12-14 07:57:03,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (1/1) ... [2022-12-14 07:57:03,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (1/1) ... [2022-12-14 07:57:03,174 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (1/1) ... [2022-12-14 07:57:03,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (1/1) ... [2022-12-14 07:57:03,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:57:03,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:57:03,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:57:03,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:57:03,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (1/1) ... [2022-12-14 07:57:03,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:57:03,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:03,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:57:03,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:57:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:57:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:57:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:57:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:57:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:57:03,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:57:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:57:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:57:03,296 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:57:03,298 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:57:03,472 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:57:03,532 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:57:03,532 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-12-14 07:57:03,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:57:03 BoogieIcfgContainer [2022-12-14 07:57:03,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:57:03,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:57:03,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:57:03,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:57:03,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:57:02" (1/3) ... [2022-12-14 07:57:03,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778c87d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:57:03, skipping insertion in model container [2022-12-14 07:57:03,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:57:03" (2/3) ... [2022-12-14 07:57:03,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778c87d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:57:03, skipping insertion in model container [2022-12-14 07:57:03,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:57:03" (3/3) ... [2022-12-14 07:57:03,544 INFO L112 eAbstractionObserver]: Analyzing ICFG add-3-n-u.c [2022-12-14 07:57:03,565 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:57:03,565 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-14 07:57:03,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:57:03,612 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;@2a8dfa3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:57:03,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-12-14 07:57:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 46 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:57:03,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 07:57:03,621 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:03,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 07:57:03,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:03,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:03,626 INFO L85 PathProgramCache]: Analyzing trace with hash 5825409, now seen corresponding path program 1 times [2022-12-14 07:57:03,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:03,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431179047] [2022-12-14 07:57:03,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:03,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:03,715 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:03,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883590993] [2022-12-14 07:57:03,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:03,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:03,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:03,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:03,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:57:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:57:03,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:57:03,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:57:03,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:57:03,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:03,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431179047] [2022-12-14 07:57:03,816 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:03,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883590993] [2022-12-14 07:57:03,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883590993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:57:03,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:57:03,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:57:03,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661779744] [2022-12-14 07:57:03,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:57:03,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:57:03,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:03,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:57:03,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:57:03,855 INFO L87 Difference]: Start difference. First operand has 47 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 46 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-12-14 07:57:03,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:03,917 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-12-14 07:57:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:57:03,919 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 [2022-12-14 07:57:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:03,925 INFO L225 Difference]: With dead ends: 47 [2022-12-14 07:57:03,925 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 07:57:03,927 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 [2022-12-14 07:57:03,929 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:03,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 27 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:57:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 07:57:03,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-12-14 07:57:03,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 42 states have internal predecessors, (51), 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) [2022-12-14 07:57:03,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2022-12-14 07:57:03,957 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 4 [2022-12-14 07:57:03,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:03,957 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2022-12-14 07:57:03,957 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) [2022-12-14 07:57:03,957 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-12-14 07:57:03,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:57:03,958 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:03,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:57:03,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:57:04,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:04,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash 180587756, now seen corresponding path program 1 times [2022-12-14 07:57:04,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:04,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159109447] [2022-12-14 07:57:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:04,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:04,196 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:04,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377240292] [2022-12-14 07:57:04,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:04,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:04,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:04,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:04,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:57:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:57:04,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:57:04,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:57:04,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:57:04,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:04,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159109447] [2022-12-14 07:57:04,345 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:04,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377240292] [2022-12-14 07:57:04,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377240292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:57:04,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:57:04,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:57:04,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65600837] [2022-12-14 07:57:04,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:57:04,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:57:04,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:04,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:57:04,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:57:04,348 INFO L87 Difference]: Start difference. First operand 43 states and 51 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) [2022-12-14 07:57:04,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:04,411 INFO L93 Difference]: Finished difference Result 85 states and 101 transitions. [2022-12-14 07:57:04,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:57:04,411 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 [2022-12-14 07:57:04,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:04,412 INFO L225 Difference]: With dead ends: 85 [2022-12-14 07:57:04,412 INFO L226 Difference]: Without dead ends: 82 [2022-12-14 07:57:04,412 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 [2022-12-14 07:57:04,413 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 39 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:04,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 57 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:57:04,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-12-14 07:57:04,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 70. [2022-12-14 07:57:04,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.7818181818181817) internal successors, (98), 69 states have internal predecessors, (98), 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) [2022-12-14 07:57:04,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2022-12-14 07:57:04,421 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 5 [2022-12-14 07:57:04,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:04,421 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2022-12-14 07:57:04,421 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) [2022-12-14 07:57:04,421 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2022-12-14 07:57:04,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:57:04,422 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:04,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:57:04,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:57:04,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-14 07:57:04,624 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:04,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:04,625 INFO L85 PathProgramCache]: Analyzing trace with hash 180438730, now seen corresponding path program 1 times [2022-12-14 07:57:04,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:04,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514577504] [2022-12-14 07:57:04,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:04,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:04,647 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:04,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1862355755] [2022-12-14 07:57:04,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:04,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:04,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:04,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:04,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:57:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:57:04,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:57:04,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:57:04,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:57:04,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:04,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514577504] [2022-12-14 07:57:04,886 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:04,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862355755] [2022-12-14 07:57:04,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862355755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:57:04,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:57:04,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:57:04,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747931592] [2022-12-14 07:57:04,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:57:04,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:57:04,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:04,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:57:04,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:57:04,891 INFO L87 Difference]: Start difference. First operand 70 states and 98 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) [2022-12-14 07:57:04,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:04,948 INFO L93 Difference]: Finished difference Result 70 states and 98 transitions. [2022-12-14 07:57:04,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:57:04,948 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 [2022-12-14 07:57:04,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:04,949 INFO L225 Difference]: With dead ends: 70 [2022-12-14 07:57:04,949 INFO L226 Difference]: Without dead ends: 67 [2022-12-14 07:57:04,949 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 [2022-12-14 07:57:04,951 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:04,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 24 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:57:04,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-14 07:57:04,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-12-14 07:57:04,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 55 states have (on average 1.6727272727272726) internal successors, (92), 66 states have internal predecessors, (92), 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) [2022-12-14 07:57:04,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2022-12-14 07:57:04,960 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 5 [2022-12-14 07:57:04,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:04,960 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2022-12-14 07:57:04,961 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) [2022-12-14 07:57:04,961 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2022-12-14 07:57:04,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:57:04,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:04,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:57:04,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:57:05,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:05,163 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:05,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:05,163 INFO L85 PathProgramCache]: Analyzing trace with hash 180434445, now seen corresponding path program 1 times [2022-12-14 07:57:05,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:05,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030679907] [2022-12-14 07:57:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:05,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:05,177 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:05,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173908154] [2022-12-14 07:57:05,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:05,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:05,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:05,180 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:05,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:57:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:57:05,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:57:05,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:57:05,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:57:05,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:05,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030679907] [2022-12-14 07:57:05,237 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:05,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173908154] [2022-12-14 07:57:05,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173908154] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:57:05,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:57:05,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:57:05,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582693218] [2022-12-14 07:57:05,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:57:05,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:57:05,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:05,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:57:05,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:57:05,239 INFO L87 Difference]: Start difference. First operand 67 states and 92 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) [2022-12-14 07:57:05,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:05,269 INFO L93 Difference]: Finished difference Result 67 states and 92 transitions. [2022-12-14 07:57:05,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:57:05,270 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 [2022-12-14 07:57:05,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:05,270 INFO L225 Difference]: With dead ends: 67 [2022-12-14 07:57:05,270 INFO L226 Difference]: Without dead ends: 64 [2022-12-14 07:57:05,270 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 [2022-12-14 07:57:05,271 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:05,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 24 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:57:05,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-12-14 07:57:05,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-12-14 07:57:05,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 55 states have (on average 1.5636363636363637) internal successors, (86), 63 states have internal predecessors, (86), 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) [2022-12-14 07:57:05,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 86 transitions. [2022-12-14 07:57:05,277 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 86 transitions. Word has length 5 [2022-12-14 07:57:05,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:05,277 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 86 transitions. [2022-12-14 07:57:05,277 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) [2022-12-14 07:57:05,277 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2022-12-14 07:57:05,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 07:57:05,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:05,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 07:57:05,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:57:05,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:05,480 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:05,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:05,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1298633404, now seen corresponding path program 1 times [2022-12-14 07:57:05,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:05,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630355702] [2022-12-14 07:57:05,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:05,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:05,502 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:05,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1107080983] [2022-12-14 07:57:05,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:05,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:05,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:05,506 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:05,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:57:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:57:05,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:57:05,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:57:05,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:57:05,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:05,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630355702] [2022-12-14 07:57:05,595 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:05,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107080983] [2022-12-14 07:57:05,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107080983] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:57:05,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:57:05,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:57:05,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557957181] [2022-12-14 07:57:05,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:57:05,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:57:05,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:05,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:57:05,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:57:05,597 INFO L87 Difference]: Start difference. First operand 64 states and 86 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-12-14 07:57:05,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:05,647 INFO L93 Difference]: Finished difference Result 124 states and 166 transitions. [2022-12-14 07:57:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:57:05,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 6 [2022-12-14 07:57:05,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:05,649 INFO L225 Difference]: With dead ends: 124 [2022-12-14 07:57:05,649 INFO L226 Difference]: Without dead ends: 121 [2022-12-14 07:57:05,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:57:05,650 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 30 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:05,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 42 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:57:05,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-14 07:57:05,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 100. [2022-12-14 07:57:05,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 91 states have (on average 1.5384615384615385) internal successors, (140), 99 states have internal predecessors, (140), 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) [2022-12-14 07:57:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 140 transitions. [2022-12-14 07:57:05,663 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 140 transitions. Word has length 6 [2022-12-14 07:57:05,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:05,663 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 140 transitions. [2022-12-14 07:57:05,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-12-14 07:57:05,663 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 140 transitions. [2022-12-14 07:57:05,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 07:57:05,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:05,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 07:57:05,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 07:57:05,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:05,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:05,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:05,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1298500562, now seen corresponding path program 1 times [2022-12-14 07:57:05,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:05,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748177747] [2022-12-14 07:57:05,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:05,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:05,895 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:05,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [967035769] [2022-12-14 07:57:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:05,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:05,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:05,900 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:05,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 07:57:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:57:05,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:57:05,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:05,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:57:05,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:57:05,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:05,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748177747] [2022-12-14 07:57:05,975 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:05,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967035769] [2022-12-14 07:57:05,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967035769] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:57:05,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:57:05,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:57:05,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968085819] [2022-12-14 07:57:05,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:57:05,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:57:05,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:05,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:57:05,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:57:05,977 INFO L87 Difference]: Start difference. First operand 100 states and 140 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-12-14 07:57:06,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:06,035 INFO L93 Difference]: Finished difference Result 190 states and 262 transitions. [2022-12-14 07:57:06,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:57:06,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 6 [2022-12-14 07:57:06,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:06,037 INFO L225 Difference]: With dead ends: 190 [2022-12-14 07:57:06,038 INFO L226 Difference]: Without dead ends: 187 [2022-12-14 07:57:06,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:57:06,039 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:06,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 45 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:57:06,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-12-14 07:57:06,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 136. [2022-12-14 07:57:06,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 135 states have internal predecessors, (188), 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) [2022-12-14 07:57:06,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 188 transitions. [2022-12-14 07:57:06,057 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 188 transitions. Word has length 6 [2022-12-14 07:57:06,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:06,057 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 188 transitions. [2022-12-14 07:57:06,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-12-14 07:57:06,057 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 188 transitions. [2022-12-14 07:57:06,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 07:57:06,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:06,058 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2022-12-14 07:57:06,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 07:57:06,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 07:57:06,260 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:06,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:06,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1288637418, now seen corresponding path program 1 times [2022-12-14 07:57:06,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:06,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694646980] [2022-12-14 07:57:06,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:06,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:06,277 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:06,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1865196329] [2022-12-14 07:57:06,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:06,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:06,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:06,281 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:06,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 07:57:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:57:06,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:57:06,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:06,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 07:57:06,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:57:06,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:06,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694646980] [2022-12-14 07:57:06,364 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:06,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865196329] [2022-12-14 07:57:06,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865196329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:57:06,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:57:06,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:57:06,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850713306] [2022-12-14 07:57:06,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:57:06,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:57:06,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:06,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:57:06,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:57:06,366 INFO L87 Difference]: Start difference. First operand 136 states and 188 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 07:57:06,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:06,421 INFO L93 Difference]: Finished difference Result 255 states and 346 transitions. [2022-12-14 07:57:06,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:57:06,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 9 [2022-12-14 07:57:06,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:06,422 INFO L225 Difference]: With dead ends: 255 [2022-12-14 07:57:06,422 INFO L226 Difference]: Without dead ends: 139 [2022-12-14 07:57:06,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:57:06,423 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 63 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:06,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 42 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:57:06,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-14 07:57:06,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2022-12-14 07:57:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 127 states have (on average 1.4330708661417322) internal successors, (182), 135 states have internal predecessors, (182), 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) [2022-12-14 07:57:06,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2022-12-14 07:57:06,431 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 9 [2022-12-14 07:57:06,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:06,431 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2022-12-14 07:57:06,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 07:57:06,432 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2022-12-14 07:57:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 07:57:06,432 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:06,432 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-12-14 07:57:06,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 07:57:06,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 07:57:06,633 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:06,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:06,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1140133877, now seen corresponding path program 1 times [2022-12-14 07:57:06,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:06,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983145100] [2022-12-14 07:57:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:06,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:06,648 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:06,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [806624485] [2022-12-14 07:57:06,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:06,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:06,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:06,650 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:06,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 07:57:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:57:06,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:57:06,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:06,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:57:06,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:57:06,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:57:06,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:06,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983145100] [2022-12-14 07:57:06,741 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:06,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806624485] [2022-12-14 07:57:06,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806624485] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:57:06,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1203053710] [2022-12-14 07:57:06,754 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 07:57:06,754 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:57:06,757 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:57:06,760 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:57:06,761 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:57:06,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:06,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:06,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:06,890 INFO L321 Elim1Store]: treesize reduction 185, result has 22.9 percent of original size [2022-12-14 07:57:06,891 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 49 treesize of output 81 [2022-12-14 07:57:06,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:06,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:06,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:07,048 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-12-14 07:57:07,048 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 [2022-12-14 07:57:07,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:07,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:07,146 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 90 treesize of output 67 [2022-12-14 07:57:07,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:07,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:07,202 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 90 treesize of output 67 [2022-12-14 07:57:07,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:07,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:07,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:07,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:07,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:07,453 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-12-14 07:57:07,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-12-14 07:57:07,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:07,576 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:07,577 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 75 treesize of output 51 [2022-12-14 07:57:07,601 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:57:22,398 WARN L233 SmtUtils]: Spent 14.47s on a formula simplification. DAG size of input: 140 DAG size of output: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:57:22,431 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2080#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~k~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |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 [2022-12-14 07:57:22,431 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:57:22,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:57:22,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-12-14 07:57:22,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627945368] [2022-12-14 07:57:22,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:57:22,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:57:22,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:22,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:57:22,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:57:22,432 INFO L87 Difference]: Start difference. First operand 136 states and 182 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-12-14 07:57:22,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:22,557 INFO L93 Difference]: Finished difference Result 451 states and 610 transitions. [2022-12-14 07:57:22,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:57:22,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 9 [2022-12-14 07:57:22,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:22,559 INFO L225 Difference]: With dead ends: 451 [2022-12-14 07:57:22,559 INFO L226 Difference]: Without dead ends: 448 [2022-12-14 07:57:22,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:57:22,560 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 140 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:22,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 99 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:57:22,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-12-14 07:57:22,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 244. [2022-12-14 07:57:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.3872340425531915) internal successors, (326), 243 states have internal predecessors, (326), 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) [2022-12-14 07:57:22,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 326 transitions. [2022-12-14 07:57:22,574 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 326 transitions. Word has length 9 [2022-12-14 07:57:22,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:22,574 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 326 transitions. [2022-12-14 07:57:22,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-12-14 07:57:22,574 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 326 transitions. [2022-12-14 07:57:22,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 07:57:22,575 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:22,575 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-14 07:57:22,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 07:57:22,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:22,776 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:22,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:22,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1438743377, now seen corresponding path program 1 times [2022-12-14 07:57:22,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:22,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186050106] [2022-12-14 07:57:22,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:22,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:22,781 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:22,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [546156152] [2022-12-14 07:57:22,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:22,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:22,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:22,782 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:22,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 07:57:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:57:22,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:57:22,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:22,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 07:57:22,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:57:22,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:22,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186050106] [2022-12-14 07:57:22,840 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:22,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546156152] [2022-12-14 07:57:22,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546156152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:57:22,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:57:22,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:57:22,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205030748] [2022-12-14 07:57:22,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:57:22,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:57:22,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:22,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:57:22,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:57:22,842 INFO L87 Difference]: Start difference. First operand 244 states and 326 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2022-12-14 07:57:22,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:22,897 INFO L93 Difference]: Finished difference Result 470 states and 627 transitions. [2022-12-14 07:57:22,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:57:22,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 10 [2022-12-14 07:57:22,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:22,898 INFO L225 Difference]: With dead ends: 470 [2022-12-14 07:57:22,898 INFO L226 Difference]: Without dead ends: 244 [2022-12-14 07:57:22,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:57:22,899 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 45 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:22,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 45 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:57:22,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-12-14 07:57:22,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-12-14 07:57:22,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.3361702127659574) internal successors, (314), 243 states have internal predecessors, (314), 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) [2022-12-14 07:57:22,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 314 transitions. [2022-12-14 07:57:22,909 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 314 transitions. Word has length 10 [2022-12-14 07:57:22,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:22,909 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 314 transitions. [2022-12-14 07:57:22,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2022-12-14 07:57:22,909 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 314 transitions. [2022-12-14 07:57:22,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 07:57:22,909 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:22,909 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-12-14 07:57:22,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 07:57:23,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:23,111 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:23,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:23,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1731388391, now seen corresponding path program 1 times [2022-12-14 07:57:23,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:23,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979461651] [2022-12-14 07:57:23,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:23,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:23,128 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:23,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647609834] [2022-12-14 07:57:23,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:23,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:23,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:23,132 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:23,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 07:57:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:57:23,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 07:57:23,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:23,266 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 07:57:23,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:57:23,287 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 07:57:23,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:23,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979461651] [2022-12-14 07:57:23,287 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:23,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647609834] [2022-12-14 07:57:23,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647609834] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:57:23,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2042619092] [2022-12-14 07:57:23,289 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 07:57:23,289 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:57:23,290 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:57:23,290 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:57:23,290 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:57:23,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,395 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-12-14 07:57:23,395 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 [2022-12-14 07:57:23,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,417 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 49 treesize of output 61 [2022-12-14 07:57:23,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,484 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 90 treesize of output 67 [2022-12-14 07:57:23,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,540 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 90 treesize of output 67 [2022-12-14 07:57:23,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:23,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:23,717 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-12-14 07:57:23,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-12-14 07:57:23,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:23,802 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:23,803 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 75 treesize of output 51 [2022-12-14 07:57:23,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,003 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,003 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 75 treesize of output 51 [2022-12-14 07:57:24,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,028 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,028 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 75 treesize of output 51 [2022-12-14 07:57:24,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,095 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,095 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 75 treesize of output 51 [2022-12-14 07:57:24,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,167 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,167 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 75 treesize of output 51 [2022-12-14 07:57:24,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,266 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,266 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 75 treesize of output 51 [2022-12-14 07:57:24,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,317 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,317 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 75 treesize of output 51 [2022-12-14 07:57:24,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,371 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,372 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 75 treesize of output 51 [2022-12-14 07:57:24,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,399 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,400 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 75 treesize of output 51 [2022-12-14 07:57:24,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,467 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,467 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 75 treesize of output 51 [2022-12-14 07:57:24,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,490 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,491 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 75 treesize of output 51 [2022-12-14 07:57:24,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,547 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,547 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 75 treesize of output 51 [2022-12-14 07:57:24,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:24,583 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:24,583 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 75 treesize of output 51 [2022-12-14 07:57:24,631 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:57:25,283 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4041#(and (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |#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|) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-12-14 07:57:25,284 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:57:25,284 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:57:25,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-12-14 07:57:25,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575673583] [2022-12-14 07:57:25,284 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:57:25,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:57:25,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:25,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:57:25,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-12-14 07:57:25,285 INFO L87 Difference]: Start difference. First operand 244 states and 314 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-12-14 07:57:25,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:25,378 INFO L93 Difference]: Finished difference Result 470 states and 604 transitions. [2022-12-14 07:57:25,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:57:25,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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 16 [2022-12-14 07:57:25,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:25,379 INFO L225 Difference]: With dead ends: 470 [2022-12-14 07:57:25,379 INFO L226 Difference]: Without dead ends: 244 [2022-12-14 07:57:25,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2022-12-14 07:57:25,380 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 129 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:25,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 78 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:57:25,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-12-14 07:57:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-12-14 07:57:25,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.1829787234042553) internal successors, (278), 243 states have internal predecessors, (278), 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) [2022-12-14 07:57:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 278 transitions. [2022-12-14 07:57:25,388 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 278 transitions. Word has length 16 [2022-12-14 07:57:25,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:25,388 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 278 transitions. [2022-12-14 07:57:25,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-12-14 07:57:25,388 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 278 transitions. [2022-12-14 07:57:25,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 07:57:25,388 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:25,388 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2022-12-14 07:57:25,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 07:57:25,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 07:57:25,590 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:25,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:25,592 INFO L85 PathProgramCache]: Analyzing trace with hash -509094254, now seen corresponding path program 2 times [2022-12-14 07:57:25,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:25,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439665138] [2022-12-14 07:57:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:25,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:25,621 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:25,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1522173159] [2022-12-14 07:57:25,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 07:57:25,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:25,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:25,625 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:25,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 07:57:25,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 07:57:25,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:57:25,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:57:25,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:57:25,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:57:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:57:25,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:25,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439665138] [2022-12-14 07:57:25,740 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:25,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522173159] [2022-12-14 07:57:25,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522173159] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:57:25,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [211371939] [2022-12-14 07:57:25,741 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 07:57:25,741 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:57:25,741 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:57:25,742 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:57:25,742 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:57:25,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:25,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:25,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:25,829 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-12-14 07:57:25,830 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 [2022-12-14 07:57:25,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:25,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:25,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:25,848 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 49 treesize of output 61 [2022-12-14 07:57:25,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:25,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:25,895 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 90 treesize of output 67 [2022-12-14 07:57:25,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:25,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:25,948 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 90 treesize of output 67 [2022-12-14 07:57:26,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:26,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:26,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:26,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:26,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:26,087 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-12-14 07:57:26,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-12-14 07:57:26,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:26,175 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:26,175 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 75 treesize of output 51 [2022-12-14 07:57:26,192 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:57:34,897 WARN L233 SmtUtils]: Spent 8.40s on a formula simplification. DAG size of input: 140 DAG size of output: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:57:34,926 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5101#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~k~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |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 [2022-12-14 07:57:34,926 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:57:34,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:57:34,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-12-14 07:57:34,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045130824] [2022-12-14 07:57:34,927 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:57:34,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:57:34,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:34,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:57:34,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:57:34,928 INFO L87 Difference]: Start difference. First operand 244 states and 278 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-12-14 07:57:34,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:34,987 INFO L93 Difference]: Finished difference Result 244 states and 278 transitions. [2022-12-14 07:57:34,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:57:34,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2022-12-14 07:57:34,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:34,988 INFO L225 Difference]: With dead ends: 244 [2022-12-14 07:57:34,988 INFO L226 Difference]: Without dead ends: 241 [2022-12-14 07:57:34,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-14 07:57:34,988 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 122 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:34,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 42 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:57:34,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-12-14 07:57:34,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 217. [2022-12-14 07:57:34,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 211 states have (on average 1.146919431279621) internal successors, (242), 216 states have internal predecessors, (242), 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) [2022-12-14 07:57:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 242 transitions. [2022-12-14 07:57:34,997 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 242 transitions. Word has length 18 [2022-12-14 07:57:34,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:34,997 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 242 transitions. [2022-12-14 07:57:34,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-12-14 07:57:34,997 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 242 transitions. [2022-12-14 07:57:34,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 07:57:34,997 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:34,998 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1] [2022-12-14 07:57:35,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-14 07:57:35,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 07:57:35,199 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:35,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:35,200 INFO L85 PathProgramCache]: Analyzing trace with hash 645880145, now seen corresponding path program 2 times [2022-12-14 07:57:35,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:35,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426321010] [2022-12-14 07:57:35,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:35,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:35,235 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:35,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117606750] [2022-12-14 07:57:35,235 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 07:57:35,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:35,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:35,237 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:35,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 07:57:35,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 07:57:35,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:57:35,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:57:35,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:35,327 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-14 07:57:35,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:57:35,366 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-14 07:57:35,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:35,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426321010] [2022-12-14 07:57:35,367 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:35,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117606750] [2022-12-14 07:57:35,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117606750] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:57:35,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1185012055] [2022-12-14 07:57:35,368 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-12-14 07:57:35,368 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:57:35,369 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:57:35,369 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:57:35,369 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:57:35,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,474 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-12-14 07:57:35,474 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 [2022-12-14 07:57:35,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,491 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 49 treesize of output 61 [2022-12-14 07:57:35,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,534 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 90 treesize of output 67 [2022-12-14 07:57:35,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,574 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 90 treesize of output 67 [2022-12-14 07:57:35,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:35,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:35,723 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-12-14 07:57:35,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-12-14 07:57:35,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:35,810 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:35,811 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 75 treesize of output 51 [2022-12-14 07:57:35,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:35,976 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:35,976 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 75 treesize of output 51 [2022-12-14 07:57:35,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:36,001 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:36,001 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 75 treesize of output 51 [2022-12-14 07:57:36,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:36,047 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:36,047 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 75 treesize of output 51 [2022-12-14 07:57:36,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:36,095 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:36,095 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 75 treesize of output 51 [2022-12-14 07:57:36,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:36,183 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:36,183 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 75 treesize of output 51 [2022-12-14 07:57:36,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:36,224 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:36,224 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 75 treesize of output 51 [2022-12-14 07:57:36,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:36,269 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:36,269 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 75 treesize of output 51 [2022-12-14 07:57:36,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:36,298 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:36,298 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 75 treesize of output 51 [2022-12-14 07:57:36,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:36,359 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:36,359 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 75 treesize of output 51 [2022-12-14 07:57:36,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:36,379 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:36,379 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 75 treesize of output 51 [2022-12-14 07:57:36,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:36,424 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:36,424 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 75 treesize of output 51 [2022-12-14 07:57:36,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:36,454 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:36,455 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 75 treesize of output 51 [2022-12-14 07:57:36,500 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:57:37,290 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5930#(and (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |#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|) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-12-14 07:57:37,290 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:57:37,290 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:57:37,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-12-14 07:57:37,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063817995] [2022-12-14 07:57:37,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:57:37,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:57:37,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:37,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:57:37,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-12-14 07:57:37,292 INFO L87 Difference]: Start difference. First operand 217 states and 242 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-14 07:57:37,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:37,347 INFO L93 Difference]: Finished difference Result 217 states and 242 transitions. [2022-12-14 07:57:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:57:37,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 34 [2022-12-14 07:57:37,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:37,348 INFO L225 Difference]: With dead ends: 217 [2022-12-14 07:57:37,348 INFO L226 Difference]: Without dead ends: 214 [2022-12-14 07:57:37,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-12-14 07:57:37,348 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 96 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:37,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 27 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:57:37,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-12-14 07:57:37,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 124. [2022-12-14 07:57:37,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 121 states have (on average 1.1570247933884297) internal successors, (140), 123 states have internal predecessors, (140), 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) [2022-12-14 07:57:37,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 140 transitions. [2022-12-14 07:57:37,355 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 140 transitions. Word has length 34 [2022-12-14 07:57:37,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:37,355 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 140 transitions. [2022-12-14 07:57:37,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-14 07:57:37,356 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 140 transitions. [2022-12-14 07:57:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 07:57:37,356 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:37,356 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-12-14 07:57:37,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 07:57:37,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 07:57:37,558 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:37,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1451571028, now seen corresponding path program 1 times [2022-12-14 07:57:37,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:37,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220044458] [2022-12-14 07:57:37,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:37,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:37,571 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:37,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1017995664] [2022-12-14 07:57:37,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:37,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:37,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:37,573 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:37,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 07:57:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:57:37,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 07:57:37,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 07:57:37,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:57:37,760 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 07:57:37,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:37,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220044458] [2022-12-14 07:57:37,760 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:37,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017995664] [2022-12-14 07:57:37,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017995664] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:57:37,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1435103421] [2022-12-14 07:57:37,762 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-12-14 07:57:37,762 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:57:37,762 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:57:37,762 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:57:37,763 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:57:37,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:37,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:37,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:37,853 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-12-14 07:57:37,854 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 [2022-12-14 07:57:37,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:37,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:37,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:37,870 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 49 treesize of output 61 [2022-12-14 07:57:37,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:37,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:37,923 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 90 treesize of output 67 [2022-12-14 07:57:37,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:37,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:37,962 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 90 treesize of output 67 [2022-12-14 07:57:38,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:38,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:38,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:38,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:38,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:38,090 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-12-14 07:57:38,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-12-14 07:57:38,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:38,157 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:38,157 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 75 treesize of output 51 [2022-12-14 07:57:38,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:38,495 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:38,495 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 75 treesize of output 51 [2022-12-14 07:57:38,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:38,514 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:38,514 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 75 treesize of output 51 [2022-12-14 07:57:38,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:38,556 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:38,556 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 75 treesize of output 51 [2022-12-14 07:57:38,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:38,619 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:38,619 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 75 treesize of output 51 [2022-12-14 07:57:38,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:38,787 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:38,787 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 75 treesize of output 51 [2022-12-14 07:57:38,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:38,826 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:38,827 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 75 treesize of output 51 [2022-12-14 07:57:38,869 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:38,880 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:38,881 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 75 treesize of output 51 [2022-12-14 07:57:38,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:38,994 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:38,994 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 75 treesize of output 51 [2022-12-14 07:57:39,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:39,013 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:39,014 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 75 treesize of output 51 [2022-12-14 07:57:39,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:39,052 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:39,053 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 75 treesize of output 51 [2022-12-14 07:57:39,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:39,085 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:39,085 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 75 treesize of output 51 [2022-12-14 07:57:39,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:39,231 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:39,231 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 75 treesize of output 51 [2022-12-14 07:57:39,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:39,248 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:39,248 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 75 treesize of output 51 [2022-12-14 07:57:39,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:39,290 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:39,290 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 75 treesize of output 51 [2022-12-14 07:57:39,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:39,317 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:39,317 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 75 treesize of output 51 [2022-12-14 07:57:39,368 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:57:40,005 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6662#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (< 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|) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-12-14 07:57:40,005 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:57:40,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:57:40,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-12-14 07:57:40,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843721938] [2022-12-14 07:57:40,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:57:40,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 07:57:40,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:40,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 07:57:40,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2022-12-14 07:57:40,006 INFO L87 Difference]: Start difference. First operand 124 states and 140 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:57:40,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:40,252 INFO L93 Difference]: Finished difference Result 353 states and 420 transitions. [2022-12-14 07:57:40,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 07:57:40,252 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-12-14 07:57:40,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:40,253 INFO L225 Difference]: With dead ends: 353 [2022-12-14 07:57:40,253 INFO L226 Difference]: Without dead ends: 232 [2022-12-14 07:57:40,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2022-12-14 07:57:40,254 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 276 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:40,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 81 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 07:57:40,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-12-14 07:57:40,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2022-12-14 07:57:40,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 229 states have (on average 1.0829694323144106) internal successors, (248), 231 states have internal predecessors, (248), 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) [2022-12-14 07:57:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2022-12-14 07:57:40,271 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 41 [2022-12-14 07:57:40,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:40,272 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2022-12-14 07:57:40,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:57:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2022-12-14 07:57:40,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 07:57:40,273 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:57:40,273 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-12-14 07:57:40,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-14 07:57:40,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 07:57:40,475 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 07:57:40,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:57:40,476 INFO L85 PathProgramCache]: Analyzing trace with hash 902360364, now seen corresponding path program 2 times [2022-12-14 07:57:40,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:57:40,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664429794] [2022-12-14 07:57:40,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:57:40,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:57:40,535 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:57:40,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406850165] [2022-12-14 07:57:40,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 07:57:40,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:57:40,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:57:40,537 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:57:40,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-14 07:57:40,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 07:57:40,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:57:40,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:57:40,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:57:40,671 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-12-14 07:57:40,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:57:40,719 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-12-14 07:57:40,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:57:40,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664429794] [2022-12-14 07:57:40,720 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:57:40,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406850165] [2022-12-14 07:57:40,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406850165] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:57:40,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2086681728] [2022-12-14 07:57:40,721 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-12-14 07:57:40,721 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:57:40,721 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:57:40,721 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:57:40,721 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:57:40,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:40,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:40,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:40,789 INFO L321 Elim1Store]: treesize reduction 185, result has 22.9 percent of original size [2022-12-14 07:57:40,790 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 49 treesize of output 81 [2022-12-14 07:57:40,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:40,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:40,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:40,882 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-12-14 07:57:40,883 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 [2022-12-14 07:57:40,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:40,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:40,938 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 90 treesize of output 67 [2022-12-14 07:57:40,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:40,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:40,973 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 90 treesize of output 67 [2022-12-14 07:57:41,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:41,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:41,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:41,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:57:41,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,111 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-12-14 07:57:41,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-12-14 07:57:41,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,183 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:41,184 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 75 treesize of output 51 [2022-12-14 07:57:41,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,502 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:41,503 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 75 treesize of output 51 [2022-12-14 07:57:41,513 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,520 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:41,520 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 75 treesize of output 51 [2022-12-14 07:57:41,550 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,558 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:41,558 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 75 treesize of output 51 [2022-12-14 07:57:41,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,613 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:41,613 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 75 treesize of output 51 [2022-12-14 07:57:41,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,763 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:41,763 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 75 treesize of output 51 [2022-12-14 07:57:41,788 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,796 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:41,796 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 75 treesize of output 51 [2022-12-14 07:57:41,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,838 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:41,838 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 75 treesize of output 51 [2022-12-14 07:57:41,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,932 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:41,932 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 75 treesize of output 51 [2022-12-14 07:57:41,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,951 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:41,951 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 75 treesize of output 51 [2022-12-14 07:57:41,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:41,991 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:41,992 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 75 treesize of output 51 [2022-12-14 07:57:42,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:42,020 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:42,020 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 75 treesize of output 51 [2022-12-14 07:57:42,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:42,142 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:42,143 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 75 treesize of output 51 [2022-12-14 07:57:42,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:42,166 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:42,166 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 75 treesize of output 51 [2022-12-14 07:57:42,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:42,213 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:42,213 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 75 treesize of output 51 [2022-12-14 07:57:42,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:57:42,247 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-12-14 07:57:42,247 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 75 treesize of output 51 [2022-12-14 07:57:42,301 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:57:43,070 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7941#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (< 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|) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-12-14 07:57:43,070 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:57:43,070 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:57:43,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-12-14 07:57:43,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062242634] [2022-12-14 07:57:43,071 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:57:43,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:57:43,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:57:43,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:57:43,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-12-14 07:57:43,072 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-12-14 07:57:43,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:57:43,137 INFO L93 Difference]: Finished difference Result 232 states and 248 transitions. [2022-12-14 07:57:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:57:43,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 77 [2022-12-14 07:57:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:57:43,138 INFO L225 Difference]: With dead ends: 232 [2022-12-14 07:57:43,138 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 07:57:43,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-12-14 07:57:43,139 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 98 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:57:43,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 15 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:57:43,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 07:57:43,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 07:57:43,139 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) [2022-12-14 07:57:43,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 07:57:43,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2022-12-14 07:57:43,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:57:43,139 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 07:57:43,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2022-12-14 07:57:43,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 07:57:43,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 07:57:43,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-12-14 07:57:43,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-12-14 07:57:43,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-12-14 07:57:43,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-12-14 07:57:43,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-12-14 07:57:43,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-12-14 07:57:43,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-12-14 07:57:43,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-12-14 07:57:43,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-12-14 07:57:43,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-12-14 07:57:43,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-12-14 07:57:43,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-12-14 07:57:43,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-12-14 07:57:43,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-12-14 07:57:43,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-12-14 07:57:43,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-12-14 07:57:43,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-12-14 07:57:43,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-12-14 07:57:43,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-14 07:57:43,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 07:57:43,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 07:57:44,126 INFO L899 garLoopResultBuilder]: For program point L68-3(lines 68 71) no Hoare annotation was computed. [2022-12-14 07:57:44,126 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-14 07:57:44,126 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-12-14 07:57:44,126 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-12-14 07:57:44,126 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-12-14 07:57:44,126 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-14 07:57:44,127 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 36) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-12-14 07:57:44,127 INFO L899 garLoopResultBuilder]: For program point L28-3(lines 28 36) no Hoare annotation was computed. [2022-12-14 07:57:44,127 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-12-14 07:57:44,127 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-12-14 07:57:44,127 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2022-12-14 07:57:44,127 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-12-14 07:57:44,127 INFO L899 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2022-12-14 07:57:44,127 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-14 07:57:44,127 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-12-14 07:57:44,127 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-12-14 07:57:44,128 INFO L895 garLoopResultBuilder]: At program point L46-2(lines 46 53) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-12-14 07:57:44,128 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-12-14 07:57:44,128 INFO L899 garLoopResultBuilder]: For program point L46-3(lines 46 53) no Hoare annotation was computed. [2022-12-14 07:57:44,128 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 07:57:44,128 INFO L895 garLoopResultBuilder]: At program point L63-2(lines 63 75) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-12-14 07:57:44,128 INFO L895 garLoopResultBuilder]: At program point L30-2(lines 30 34) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-12-14 07:57:44,128 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 34) no Hoare annotation was computed. [2022-12-14 07:57:44,128 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-12-14 07:57:44,128 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2022-12-14 07:57:44,129 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 51) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-12-14 07:57:44,129 INFO L899 garLoopResultBuilder]: For program point L48-3(lines 48 51) no Hoare annotation was computed. [2022-12-14 07:57:44,129 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-12-14 07:57:44,129 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-14 07:57:44,129 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-12-14 07:57:44,129 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-12-14 07:57:44,129 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2022-12-14 07:57:44,129 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 07:57:44,129 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2022-12-14 07:57:44,130 INFO L895 garLoopResultBuilder]: At program point L66-2(lines 66 73) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-12-14 07:57:44,130 INFO L899 garLoopResultBuilder]: For program point L66-3(lines 66 73) no Hoare annotation was computed. [2022-12-14 07:57:44,130 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-14 07:57:44,130 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 38) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-12-14 07:57:44,130 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-12-14 07:57:44,130 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-12-14 07:57:44,130 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-12-14 07:57:44,130 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-12-14 07:57:44,130 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-12-14 07:57:44,130 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-12-14 07:57:44,131 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 43 55) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-12-14 07:57:44,131 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-12-14 07:57:44,131 INFO L895 garLoopResultBuilder]: At program point L68-2(lines 68 71) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-12-14 07:57:44,133 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:57:44,134 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:57:44,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:57:44 BoogieIcfgContainer [2022-12-14 07:57:44,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:57:44,146 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:57:44,146 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:57:44,146 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:57:44,147 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:57:03" (3/4) ... [2022-12-14 07:57:44,148 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 07:57:44,155 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-12-14 07:57:44,156 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-12-14 07:57:44,156 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 07:57:44,156 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 07:57:44,180 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 07:57:44,180 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:57:44,180 INFO L158 Benchmark]: Toolchain (without parser) took 41281.28ms. Allocated memory was 130.0MB in the beginning and 192.9MB in the end (delta: 62.9MB). Free memory was 94.3MB in the beginning and 147.8MB in the end (delta: -53.5MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-12-14 07:57:44,180 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory was 69.4MB in the beginning and 69.3MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:57:44,180 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.59ms. Allocated memory is still 130.0MB. Free memory was 94.0MB in the beginning and 83.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:57:44,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.94ms. Allocated memory is still 130.0MB. Free memory was 83.1MB in the beginning and 81.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:57:44,181 INFO L158 Benchmark]: Boogie Preprocessor took 19.09ms. Allocated memory is still 130.0MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:57:44,181 INFO L158 Benchmark]: RCFGBuilder took 356.95ms. Allocated memory was 130.0MB in the beginning and 159.4MB in the end (delta: 29.4MB). Free memory was 79.7MB in the beginning and 129.2MB in the end (delta: -49.5MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-12-14 07:57:44,181 INFO L158 Benchmark]: TraceAbstraction took 40609.59ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 129.2MB in the beginning and 150.9MB in the end (delta: -21.7MB). Peak memory consumption was 117.7MB. Max. memory is 16.1GB. [2022-12-14 07:57:44,181 INFO L158 Benchmark]: Witness Printer took 33.74ms. Allocated memory is still 192.9MB. Free memory was 150.9MB in the beginning and 147.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:57:44,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory was 69.4MB in the beginning and 69.3MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.59ms. Allocated memory is still 130.0MB. Free memory was 94.0MB in the beginning and 83.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.94ms. Allocated memory is still 130.0MB. Free memory was 83.1MB in the beginning and 81.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.09ms. Allocated memory is still 130.0MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.95ms. Allocated memory was 130.0MB in the beginning and 159.4MB in the end (delta: 29.4MB). Free memory was 79.7MB in the beginning and 129.2MB in the end (delta: -49.5MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 40609.59ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 129.2MB in the beginning and 150.9MB in the end (delta: -21.7MB). Peak memory consumption was 117.7MB. Max. memory is 16.1GB. * Witness Printer took 33.74ms. Allocated memory is still 192.9MB. Free memory was 150.9MB in the beginning and 147.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: 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, 47 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 40.5s, OverallIterations: 14, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1179 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1179 mSDsluCounter, 648 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 312 mSDsCounter, 377 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 634 IncrementalHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 377 mSolverCounterUnsat, 336 mSDtfsCounter, 634 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 628 GetRequests, 527 SyntacticMatches, 6 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 26.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=8, InterpolantAutomatonStates: 64, 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, 14 MinimizatonAttempts, 405 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 93 NumberOfFragments, 306 HoareAnnotationTreeSize, 9 FomulaSimplifications, 378 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7038 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 245 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 1186 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1443 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 20 InterpolantComputations, 8 PerfectInterpolantSequences, 928/1772 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 RESULT: Ultimate proved your program to be correct! [2022-12-14 07:57:44,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_788b50bd-57f4-4217-8fe1-ab20f866ac15/bin/utaipan-gh47qXpMRh/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