./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/rev-2-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/rev-2-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur --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 bf03248da0b4b82491822f692d5527664b721dbcd28594bdb518a5eab7d5a1f3 --- 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-38b53e6 [2022-11-26 00:18:11,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:18:11,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:18:11,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:18:11,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:18:11,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:18:11,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:18:11,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:18:11,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:18:11,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:18:11,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:18:11,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:18:11,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:18:11,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:18:11,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:18:11,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:18:11,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:18:11,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:18:11,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:18:11,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:18:11,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:18:11,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:18:11,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:18:11,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:18:11,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:18:11,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:18:11,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:18:11,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:18:11,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:18:11,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:18:11,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:18:11,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:18:11,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:18:11,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:18:11,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:18:11,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:18:11,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:18:11,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:18:11,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:18:11,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:18:11,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:18:11,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:18:11,925 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:18:11,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:18:11,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:18:11,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:18:11,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:18:11,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:18:11,927 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:18:11,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:18:11,928 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:18:11,928 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:18:11,929 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:18:11,930 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:18:11,930 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:18:11,930 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:18:11,930 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:18:11,931 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:18:11,931 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:18:11,931 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:18:11,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:18:11,932 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:18:11,932 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:18:11,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:18:11,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:18:11,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:18:11,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:18:11,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:18:11,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:18:11,934 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:18:11,935 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:18:11,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:18:11,935 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:18:11,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:18:11,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:18:11,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:18:11,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:18:11,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:18:11,938 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:18:11,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:18:11,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:18:11,938 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:18:11,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:18:11,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:18:11,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:18:11,939 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_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf03248da0b4b82491822f692d5527664b721dbcd28594bdb518a5eab7d5a1f3 [2022-11-26 00:18:12,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:18:12,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:18:12,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:18:12,266 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:18:12,267 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:18:12,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-multidimensional/rev-2-n-u.c [2022-11-26 00:18:15,508 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:18:15,762 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:18:15,765 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/sv-benchmarks/c/array-multidimensional/rev-2-n-u.c [2022-11-26 00:18:15,773 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/data/d8685e9d1/95ac9c7f49a74352a9249ff83266b558/FLAGa3e18e1d6 [2022-11-26 00:18:15,792 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/data/d8685e9d1/95ac9c7f49a74352a9249ff83266b558 [2022-11-26 00:18:15,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:18:15,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:18:15,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:18:15,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:18:15,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:18:15,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:18:15" (1/1) ... [2022-11-26 00:18:15,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac428f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:15, skipping insertion in model container [2022-11-26 00:18:15,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:18:15" (1/1) ... [2022-11-26 00:18:15,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:18:15,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:18:15,982 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_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/sv-benchmarks/c/array-multidimensional/rev-2-n-u.c[321,334] [2022-11-26 00:18:16,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:18:16,013 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:18:16,026 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_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/sv-benchmarks/c/array-multidimensional/rev-2-n-u.c[321,334] [2022-11-26 00:18:16,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:18:16,058 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:18:16,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16 WrapperNode [2022-11-26 00:18:16,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:18:16,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:18:16,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:18:16,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:18:16,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (1/1) ... [2022-11-26 00:18:16,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (1/1) ... [2022-11-26 00:18:16,131 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2022-11-26 00:18:16,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:18:16,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:18:16,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:18:16,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:18:16,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (1/1) ... [2022-11-26 00:18:16,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (1/1) ... [2022-11-26 00:18:16,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (1/1) ... [2022-11-26 00:18:16,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (1/1) ... [2022-11-26 00:18:16,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (1/1) ... [2022-11-26 00:18:16,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (1/1) ... [2022-11-26 00:18:16,183 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (1/1) ... [2022-11-26 00:18:16,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (1/1) ... [2022-11-26 00:18:16,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:18:16,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:18:16,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:18:16,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:18:16,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (1/1) ... [2022-11-26 00:18:16,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:18:16,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:16,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:18:16,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:18:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:18:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:18:16,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:18:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:18:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:18:16,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:18:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:18:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:18:16,375 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:18:16,377 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:18:16,689 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:18:16,779 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:18:16,779 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-26 00:18:16,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:16 BoogieIcfgContainer [2022-11-26 00:18:16,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:18:16,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:18:16,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:18:16,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:18:16,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:18:15" (1/3) ... [2022-11-26 00:18:16,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7996d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:18:16, skipping insertion in model container [2022-11-26 00:18:16,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:16" (2/3) ... [2022-11-26 00:18:16,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7996d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:18:16, skipping insertion in model container [2022-11-26 00:18:16,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:16" (3/3) ... [2022-11-26 00:18:16,796 INFO L112 eAbstractionObserver]: Analyzing ICFG rev-2-n-u.c [2022-11-26 00:18:16,817 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:18:16,818 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-26 00:18:16,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:18:16,902 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;@2abf726b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:18:16,903 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-26 00:18:16,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 63 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:16,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:18:16,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:16,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:18:16,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-26 00:18:16,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:16,924 INFO L85 PathProgramCache]: Analyzing trace with hash 5348179, now seen corresponding path program 1 times [2022-11-26 00:18:16,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:16,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902665791] [2022-11-26 00:18:16,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:16,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:17,032 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:17,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1097664468] [2022-11-26 00:18:17,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:17,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:17,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:17,043 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:17,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:18:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:17,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:18:17,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:17,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:17,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:17,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:17,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902665791] [2022-11-26 00:18:17,198 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:17,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097664468] [2022-11-26 00:18:17,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097664468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:17,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:17,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:18:17,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370295711] [2022-11-26 00:18:17,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:17,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:18:17,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:17,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:18:17,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:17,242 INFO L87 Difference]: Start difference. First operand has 64 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 63 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:17,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:17,389 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2022-11-26 00:18:17,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:18:17,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-26 00:18:17,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:17,400 INFO L225 Difference]: With dead ends: 64 [2022-11-26 00:18:17,400 INFO L226 Difference]: Without dead ends: 60 [2022-11-26 00:18:17,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:17,409 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 58 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:17,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 27 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:17,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-26 00:18:17,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-26 00:18:17,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 35 states have (on average 1.8571428571428572) internal successors, (65), 59 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:17,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2022-11-26 00:18:17,466 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 4 [2022-11-26 00:18:17,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:17,467 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2022-11-26 00:18:17,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:17,468 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2022-11-26 00:18:17,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:18:17,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:17,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:18:17,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:17,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-26 00:18:17,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-26 00:18:17,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:17,675 INFO L85 PathProgramCache]: Analyzing trace with hash 5343801, now seen corresponding path program 1 times [2022-11-26 00:18:17,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:17,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213235406] [2022-11-26 00:18:17,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:17,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:17,694 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:17,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458955426] [2022-11-26 00:18:17,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:17,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:17,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:17,705 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:17,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:18:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:17,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:18:17,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:17,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:17,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:17,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:17,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213235406] [2022-11-26 00:18:17,798 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:17,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458955426] [2022-11-26 00:18:17,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458955426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:17,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:17,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:18:17,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30436232] [2022-11-26 00:18:17,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:17,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:18:17,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:17,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:18:17,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:17,802 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:17,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:17,896 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2022-11-26 00:18:17,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:18:17,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-26 00:18:17,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:17,898 INFO L225 Difference]: With dead ends: 60 [2022-11-26 00:18:17,899 INFO L226 Difference]: Without dead ends: 57 [2022-11-26 00:18:17,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:17,902 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:17,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 28 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:17,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-26 00:18:17,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-26 00:18:17,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 56 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:17,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2022-11-26 00:18:17,934 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 4 [2022-11-26 00:18:17,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:17,935 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2022-11-26 00:18:17,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2022-11-26 00:18:17,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:18:17,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:17,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:18:17,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:18,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:18,142 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-26 00:18:18,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:18,143 INFO L85 PathProgramCache]: Analyzing trace with hash 169882472, now seen corresponding path program 1 times [2022-11-26 00:18:18,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:18,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331413663] [2022-11-26 00:18:18,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:18,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:18,153 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:18,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [606906637] [2022-11-26 00:18:18,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:18,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:18,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:18,156 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:18,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:18:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:18,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:18:18,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:18,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:18,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:18,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331413663] [2022-11-26 00:18:18,245 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:18,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606906637] [2022-11-26 00:18:18,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606906637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:18,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:18,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:18:18,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469723522] [2022-11-26 00:18:18,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:18,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:18:18,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:18,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:18:18,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:18,250 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:18,321 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2022-11-26 00:18:18,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:18:18,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:18:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:18,322 INFO L225 Difference]: With dead ends: 102 [2022-11-26 00:18:18,323 INFO L226 Difference]: Without dead ends: 54 [2022-11-26 00:18:18,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:18,324 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:18,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 26 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:18,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-26 00:18:18,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-26 00:18:18,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 53 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:18,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2022-11-26 00:18:18,332 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 5 [2022-11-26 00:18:18,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:18,332 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2022-11-26 00:18:18,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:18,333 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2022-11-26 00:18:18,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:18:18,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:18,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:18:18,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:18,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:18,542 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-26 00:18:18,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:18,542 INFO L85 PathProgramCache]: Analyzing trace with hash 165793610, now seen corresponding path program 1 times [2022-11-26 00:18:18,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:18,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293009636] [2022-11-26 00:18:18,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:18,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:18,548 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:18,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [315448516] [2022-11-26 00:18:18,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:18,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:18,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:18,550 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:18,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:18:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:18,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:18:18,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:18,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:18,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:18,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293009636] [2022-11-26 00:18:18,624 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:18,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315448516] [2022-11-26 00:18:18,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315448516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:18,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:18,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:18:18,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643555032] [2022-11-26 00:18:18,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:18,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:18:18,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:18,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:18:18,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:18,627 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:18,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:18,755 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2022-11-26 00:18:18,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:18:18,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:18:18,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:18,757 INFO L225 Difference]: With dead ends: 105 [2022-11-26 00:18:18,757 INFO L226 Difference]: Without dead ends: 102 [2022-11-26 00:18:18,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:18,758 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 46 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:18,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 51 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:18,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-26 00:18:18,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 87. [2022-11-26 00:18:18,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 69 states have (on average 1.608695652173913) internal successors, (111), 86 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 111 transitions. [2022-11-26 00:18:18,768 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 111 transitions. Word has length 5 [2022-11-26 00:18:18,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:18,769 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 111 transitions. [2022-11-26 00:18:18,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:18,769 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 111 transitions. [2022-11-26 00:18:18,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:18:18,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:18,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:18:18,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:18,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:18,975 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-26 00:18:18,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:18,976 INFO L85 PathProgramCache]: Analyzing trace with hash 165657885, now seen corresponding path program 1 times [2022-11-26 00:18:18,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:18,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077474147] [2022-11-26 00:18:18,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:18,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:18,983 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:18,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [428040724] [2022-11-26 00:18:18,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:18,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:18,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:18,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:18,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:18:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:19,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:18:19,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:19,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:19,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:19,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:19,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077474147] [2022-11-26 00:18:19,069 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:19,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428040724] [2022-11-26 00:18:19,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428040724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:19,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:19,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:18:19,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951310265] [2022-11-26 00:18:19,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:19,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:18:19,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:19,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:18:19,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:19,071 INFO L87 Difference]: Start difference. First operand 87 states and 111 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:19,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:19,188 INFO L93 Difference]: Finished difference Result 170 states and 217 transitions. [2022-11-26 00:18:19,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:18:19,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:18:19,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:19,193 INFO L225 Difference]: With dead ends: 170 [2022-11-26 00:18:19,194 INFO L226 Difference]: Without dead ends: 167 [2022-11-26 00:18:19,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:19,197 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 44 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:19,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 48 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:19,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-26 00:18:19,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 137. [2022-11-26 00:18:19,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 119 states have (on average 1.6050420168067228) internal successors, (191), 136 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:19,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 191 transitions. [2022-11-26 00:18:19,222 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 191 transitions. Word has length 5 [2022-11-26 00:18:19,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:19,222 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 191 transitions. [2022-11-26 00:18:19,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 191 transitions. [2022-11-26 00:18:19,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:18:19,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:19,223 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-11-26 00:18:19,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:19,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:19,429 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-26 00:18:19,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:19,430 INFO L85 PathProgramCache]: Analyzing trace with hash 196678647, now seen corresponding path program 1 times [2022-11-26 00:18:19,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:19,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945237799] [2022-11-26 00:18:19,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:19,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:19,444 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:19,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831995410] [2022-11-26 00:18:19,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:19,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:19,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:19,453 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:19,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:18:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:19,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:18:19,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:19,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:18:19,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:19,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:19,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945237799] [2022-11-26 00:18:19,589 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:19,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831995410] [2022-11-26 00:18:19,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831995410] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:18:19,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1846721288] [2022-11-26 00:18:19,608 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-26 00:18:19,608 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:18:19,612 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:18:19,618 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:18:19,618 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:18:19,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:19,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:19,762 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-11-26 00:18:19,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 61 [2022-11-26 00:18:19,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:19,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:19,885 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-26 00:18:19,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-26 00:18:19,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:19,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-26 00:18:20,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:20,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:18:20,282 INFO L321 Elim1Store]: treesize reduction 70, result has 27.8 percent of original size [2022-11-26 00:18:20,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 348 treesize of output 341 [2022-11-26 00:18:20,855 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:20,877 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:20,889 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:18:21,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1846721288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:21,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:18:21,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 8 [2022-11-26 00:18:21,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872620834] [2022-11-26 00:18:21,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:21,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:18:21,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:21,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:18:21,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:18:21,191 INFO L87 Difference]: Start difference. First operand 137 states and 191 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:21,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:21,615 INFO L93 Difference]: Finished difference Result 266 states and 371 transitions. [2022-11-26 00:18:21,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:18:21,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:18:21,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:21,618 INFO L225 Difference]: With dead ends: 266 [2022-11-26 00:18:21,618 INFO L226 Difference]: Without dead ends: 137 [2022-11-26 00:18:21,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:18:21,620 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:21,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 45 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:21,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-26 00:18:21,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2022-11-26 00:18:21,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 117 states have (on average 1.5982905982905984) internal successors, (187), 134 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:21,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 187 transitions. [2022-11-26 00:18:21,649 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 187 transitions. Word has length 8 [2022-11-26 00:18:21,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:21,649 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 187 transitions. [2022-11-26 00:18:21,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:21,650 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 187 transitions. [2022-11-26 00:18:21,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:18:21,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:21,650 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:21,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:21,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-26 00:18:21,856 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-26 00:18:21,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:21,856 INFO L85 PathProgramCache]: Analyzing trace with hash -808916036, now seen corresponding path program 1 times [2022-11-26 00:18:21,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:21,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087996167] [2022-11-26 00:18:21,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:21,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:21,863 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:21,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1238659551] [2022-11-26 00:18:21,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:21,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:21,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:21,865 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:21,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:18:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:21,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:18:21,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:21,962 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:18:21,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:18:21,989 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:18:21,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:21,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087996167] [2022-11-26 00:18:21,990 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:21,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238659551] [2022-11-26 00:18:21,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238659551] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:18:21,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [226548154] [2022-11-26 00:18:21,994 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-26 00:18:21,994 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:18:21,994 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:18:21,995 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:18:21,995 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:18:22,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:22,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:22,084 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-11-26 00:18:22,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 61 [2022-11-26 00:18:22,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:22,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:22,208 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-26 00:18:22,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-26 00:18:22,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:22,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-26 00:18:22,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:22,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:18:22,767 INFO L321 Elim1Store]: treesize reduction 70, result has 27.8 percent of original size [2022-11-26 00:18:22,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 348 treesize of output 341 [2022-11-26 00:18:23,209 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:23,339 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:23,439 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:23,458 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:18:23,987 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1747#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |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|) (< 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 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-26 00:18:23,987 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:18:23,987 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:18:23,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-26 00:18:23,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274081526] [2022-11-26 00:18:23,988 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:18:23,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:18:23,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:23,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:18:23,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:18:23,989 INFO L87 Difference]: Start difference. First operand 135 states and 187 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:24,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:24,248 INFO L93 Difference]: Finished difference Result 391 states and 551 transitions. [2022-11-26 00:18:24,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:18:24,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 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 12 [2022-11-26 00:18:24,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:24,250 INFO L225 Difference]: With dead ends: 391 [2022-11-26 00:18:24,250 INFO L226 Difference]: Without dead ends: 262 [2022-11-26 00:18:24,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:18:24,252 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 271 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:24,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 78 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:18:24,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-11-26 00:18:24,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 239. [2022-11-26 00:18:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.3822222222222222) internal successors, (311), 238 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 311 transitions. [2022-11-26 00:18:24,272 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 311 transitions. Word has length 12 [2022-11-26 00:18:24,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:24,272 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 311 transitions. [2022-11-26 00:18:24,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:24,273 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 311 transitions. [2022-11-26 00:18:24,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:18:24,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:24,274 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:24,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:24,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-26 00:18:24,480 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-26 00:18:24,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:24,481 INFO L85 PathProgramCache]: Analyzing trace with hash -582248745, now seen corresponding path program 1 times [2022-11-26 00:18:24,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:24,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855211817] [2022-11-26 00:18:24,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:24,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:24,490 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:24,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [159344711] [2022-11-26 00:18:24,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:24,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:24,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:24,491 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:24,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-26 00:18:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:24,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:18:24,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:24,735 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:24,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:18:24,823 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:18:24,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:24,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855211817] [2022-11-26 00:18:24,824 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:24,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159344711] [2022-11-26 00:18:24,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159344711] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:18:24,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [40085797] [2022-11-26 00:18:24,827 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-26 00:18:24,827 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:18:24,827 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:18:24,828 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:18:24,828 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:18:24,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:24,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:24,958 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-26 00:18:24,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-26 00:18:24,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:24,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:24,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 47 [2022-11-26 00:18:25,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:25,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-26 00:18:25,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:25,422 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:18:25,453 INFO L321 Elim1Store]: treesize reduction 70, result has 27.8 percent of original size [2022-11-26 00:18:25,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 348 treesize of output 341 [2022-11-26 00:18:25,898 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:26,015 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:26,089 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:26,232 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:18:26,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [40085797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:26,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:18:26,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 7] total 18 [2022-11-26 00:18:26,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398425821] [2022-11-26 00:18:26,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:26,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:18:26,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:26,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:18:26,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=225, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:18:26,784 INFO L87 Difference]: Start difference. First operand 239 states and 311 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:27,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:27,224 INFO L93 Difference]: Finished difference Result 337 states and 446 transitions. [2022-11-26 00:18:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:18:27,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 22 [2022-11-26 00:18:27,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:27,226 INFO L225 Difference]: With dead ends: 337 [2022-11-26 00:18:27,226 INFO L226 Difference]: Without dead ends: 230 [2022-11-26 00:18:27,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-11-26 00:18:27,227 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 125 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:27,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 0 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:18:27,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-26 00:18:27,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2022-11-26 00:18:27,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.0844444444444445) internal successors, (244), 229 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:27,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 244 transitions. [2022-11-26 00:18:27,249 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 244 transitions. Word has length 22 [2022-11-26 00:18:27,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:27,249 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 244 transitions. [2022-11-26 00:18:27,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:27,250 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 244 transitions. [2022-11-26 00:18:27,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:18:27,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:27,251 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1] [2022-11-26 00:18:27,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-26 00:18:27,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:27,457 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-26 00:18:27,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:27,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1451570402, now seen corresponding path program 2 times [2022-11-26 00:18:27,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:27,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156206249] [2022-11-26 00:18:27,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:27,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:27,487 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:27,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535402641] [2022-11-26 00:18:27,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:18:27,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:27,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:27,493 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:27,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-26 00:18:27,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:18:27,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:27,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:18:27,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:27,644 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-26 00:18:27,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:18:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-26 00:18:27,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:27,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156206249] [2022-11-26 00:18:27,714 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:27,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535402641] [2022-11-26 00:18:27,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535402641] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:18:27,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [863906337] [2022-11-26 00:18:27,716 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-26 00:18:27,716 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:18:27,716 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:18:27,717 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:18:27,717 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:18:27,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:27,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:27,842 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-11-26 00:18:27,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 61 [2022-11-26 00:18:27,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:27,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:27,961 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-26 00:18:27,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-26 00:18:28,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:28,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-26 00:18:28,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:28,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:28,431 INFO L321 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-11-26 00:18:28,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 356 treesize of output 339 [2022-11-26 00:18:28,635 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:28,733 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:28,817 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:28,868 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:28,911 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:28,918 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:18:29,652 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3517#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |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|) (< 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 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-26 00:18:29,652 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:18:29,652 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:18:29,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-26 00:18:29,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160263227] [2022-11-26 00:18:29,653 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:18:29,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:18:29,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:29,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:18:29,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:18:29,654 INFO L87 Difference]: Start difference. First operand 230 states and 244 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:29,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:29,735 INFO L93 Difference]: Finished difference Result 230 states and 244 transitions. [2022-11-26 00:18:29,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:18:29,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:18:29,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:29,737 INFO L225 Difference]: With dead ends: 230 [2022-11-26 00:18:29,737 INFO L226 Difference]: Without dead ends: 227 [2022-11-26 00:18:29,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 86 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:18:29,738 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:29,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 15 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:18:29,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-26 00:18:29,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 117. [2022-11-26 00:18:29,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 115 states have (on average 1.0782608695652174) internal successors, (124), 116 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 124 transitions. [2022-11-26 00:18:29,758 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 124 transitions. Word has length 33 [2022-11-26 00:18:29,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:29,759 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 124 transitions. [2022-11-26 00:18:29,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 124 transitions. [2022-11-26 00:18:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-26 00:18:29,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:29,764 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:29,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:29,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-26 00:18:29,970 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-26 00:18:29,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:29,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1427624703, now seen corresponding path program 1 times [2022-11-26 00:18:29,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:29,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248038162] [2022-11-26 00:18:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:29,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:29,985 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:29,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1077626740] [2022-11-26 00:18:29,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:29,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:29,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:29,987 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:29,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-26 00:18:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:30,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:18:30,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:30,219 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-26 00:18:30,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:18:30,308 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-26 00:18:30,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:30,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248038162] [2022-11-26 00:18:30,309 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:30,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077626740] [2022-11-26 00:18:30,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077626740] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:18:30,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1867149987] [2022-11-26 00:18:30,315 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-26 00:18:30,315 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:18:30,315 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:18:30,316 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:18:30,316 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:18:30,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:30,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:30,421 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-11-26 00:18:30,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 61 [2022-11-26 00:18:30,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:30,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:30,534 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-26 00:18:30,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-26 00:18:30,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:30,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-26 00:18:30,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:30,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 62 [2022-11-26 00:18:30,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:30,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:30,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:30,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:30,789 INFO L321 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2022-11-26 00:18:30,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 428 treesize of output 372 [2022-11-26 00:18:30,911 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:31,132 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:31,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:31,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2022-11-26 00:18:31,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:31,218 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-26 00:18:31,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 134 [2022-11-26 00:18:31,305 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:31,405 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:31,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2022-11-26 00:18:31,521 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:31,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:31,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 42 [2022-11-26 00:18:31,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:31,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:31,834 INFO L321 Elim1Store]: treesize reduction 129, result has 24.6 percent of original size [2022-11-26 00:18:31,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 154 treesize of output 165 [2022-11-26 00:18:32,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:32,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 42 [2022-11-26 00:18:32,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:32,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 42 [2022-11-26 00:18:32,257 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:32,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2022-11-26 00:18:32,349 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:32,422 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:32,426 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:18:34,225 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4261#(and (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ |ULTIMATE.start_main_~#A~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~j~0#1| (- 4)) (- 4) (* |ULTIMATE.start_main_~n~0#1| 4) (* (* |ULTIMATE.start_main_~n~0#1| 4) (+ (- 1) (* (- 1) |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~m~0#1|))))) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~j~0#1| (+ 2147483647 |ULTIMATE.start_main_~n~0#1|)) (= |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 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-26 00:18:34,225 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:18:34,225 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:18:34,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-26 00:18:34,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13908267] [2022-11-26 00:18:34,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:18:34,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:18:34,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:34,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:18:34,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:18:34,228 INFO L87 Difference]: Start difference. First operand 117 states and 124 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 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) [2022-11-26 00:18:34,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:34,696 INFO L93 Difference]: Finished difference Result 391 states and 427 transitions. [2022-11-26 00:18:34,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:18:34,697 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 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 52 [2022-11-26 00:18:34,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:34,698 INFO L225 Difference]: With dead ends: 391 [2022-11-26 00:18:34,698 INFO L226 Difference]: Without dead ends: 276 [2022-11-26 00:18:34,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 119 SyntacticMatches, 9 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=275, Invalid=781, Unknown=0, NotChecked=0, Total=1056 [2022-11-26 00:18:34,699 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 704 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:34,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 107 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:18:34,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-11-26 00:18:34,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 267. [2022-11-26 00:18:34,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 265 states have (on average 1.0566037735849056) internal successors, (280), 266 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:34,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 280 transitions. [2022-11-26 00:18:34,721 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 280 transitions. Word has length 52 [2022-11-26 00:18:34,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:34,722 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 280 transitions. [2022-11-26 00:18:34,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 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) [2022-11-26 00:18:34,722 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 280 transitions. [2022-11-26 00:18:34,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-26 00:18:34,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:34,724 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:34,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:34,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-26 00:18:34,930 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-26 00:18:34,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash -951374850, now seen corresponding path program 2 times [2022-11-26 00:18:34,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:34,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073446156] [2022-11-26 00:18:34,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:34,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:34,950 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:34,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [901966755] [2022-11-26 00:18:34,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:18:34,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:34,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:34,951 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:34,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-26 00:18:35,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:18:35,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:35,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:18:35,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-26 00:18:35,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:18:35,371 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-26 00:18:35,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:35,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073446156] [2022-11-26 00:18:35,372 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:35,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901966755] [2022-11-26 00:18:35,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901966755] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:18:35,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [726775401] [2022-11-26 00:18:35,375 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-26 00:18:35,375 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:18:35,375 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:18:35,376 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:18:35,376 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:18:35,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,464 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-26 00:18:35,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-26 00:18:35,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 47 [2022-11-26 00:18:35,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-26 00:18:35,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 58 [2022-11-26 00:18:35,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:18:35,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,695 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-26 00:18:35,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 420 treesize of output 368 [2022-11-26 00:18:35,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:35,878 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:35,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2022-11-26 00:18:35,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:35,946 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-26 00:18:35,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 134 [2022-11-26 00:18:36,021 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:36,113 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:36,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2022-11-26 00:18:36,194 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:36,243 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:36,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2022-11-26 00:18:36,311 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 0 case distinctions, treesize of input 186 treesize of output 132 [2022-11-26 00:18:36,354 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:36,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:36,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 42 [2022-11-26 00:18:36,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:36,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:36,610 INFO L321 Elim1Store]: treesize reduction 99, result has 19.5 percent of original size [2022-11-26 00:18:36,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 165 treesize of output 170 [2022-11-26 00:18:36,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:36,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 42 [2022-11-26 00:18:36,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:18:36,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 42 [2022-11-26 00:18:37,003 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-26 00:18:37,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 210 [2022-11-26 00:18:37,087 INFO L321 Elim1Store]: treesize reduction 126, result has 10.6 percent of original size [2022-11-26 00:18:37,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 244 treesize of output 235 [2022-11-26 00:18:37,146 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:37,190 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-26 00:18:37,201 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:18:39,475 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5681#(and (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ |ULTIMATE.start_main_~#A~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~j~0#1| (- 4)) (- 4) (* |ULTIMATE.start_main_~n~0#1| 4) (* (* |ULTIMATE.start_main_~n~0#1| 4) (+ (- 1) (* (- 1) |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~m~0#1|))))) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~j~0#1| (+ 2147483647 |ULTIMATE.start_main_~n~0#1|)) (= |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 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-26 00:18:39,475 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:18:39,476 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:18:39,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-26 00:18:39,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505131712] [2022-11-26 00:18:39,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:18:39,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:18:39,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:39,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:18:39,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2022-11-26 00:18:39,478 INFO L87 Difference]: Start difference. First operand 267 states and 280 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:39,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:39,572 INFO L93 Difference]: Finished difference Result 268 states and 281 transitions. [2022-11-26 00:18:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:18:39,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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 103 [2022-11-26 00:18:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:39,574 INFO L225 Difference]: With dead ends: 268 [2022-11-26 00:18:39,574 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:18:39,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 271 SyntacticMatches, 18 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-26 00:18:39,575 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 77 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:39,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 23 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:18:39,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:18:39,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:18:39,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:39,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:18:39,577 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2022-11-26 00:18:39,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:39,577 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:18:39,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:39,577 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:18:39,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:18:39,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2022-11-26 00:18:39,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2022-11-26 00:18:39,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2022-11-26 00:18:39,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2022-11-26 00:18:39,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2022-11-26 00:18:39,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2022-11-26 00:18:39,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2022-11-26 00:18:39,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2022-11-26 00:18:39,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2022-11-26 00:18:39,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2022-11-26 00:18:39,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2022-11-26 00:18:39,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2022-11-26 00:18:39,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2022-11-26 00:18:39,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2022-11-26 00:18:39,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 28 remaining) [2022-11-26 00:18:39,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining) [2022-11-26 00:18:39,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2022-11-26 00:18:39,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2022-11-26 00:18:39,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2022-11-26 00:18:39,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2022-11-26 00:18:39,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2022-11-26 00:18:39,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2022-11-26 00:18:39,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2022-11-26 00:18:39,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2022-11-26 00:18:39,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2022-11-26 00:18:39,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2022-11-26 00:18:39,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2022-11-26 00:18:39,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2022-11-26 00:18:39,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:39,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:39,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:18:41,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-26 00:18:41,022 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2022-11-26 00:18:41,022 INFO L899 garLoopResultBuilder]: For program point L60-1(line 60) no Hoare annotation was computed. [2022-11-26 00:18:41,023 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 31) the Hoare annotation is: (and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~m~0#1|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-26 00:18:41,023 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 31) no Hoare annotation was computed. [2022-11-26 00:18:41,023 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,023 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-11-26 00:18:41,023 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-11-26 00:18:41,023 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-11-26 00:18:41,024 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,024 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-26 00:18:41,024 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:18:41,024 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,024 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2022-11-26 00:18:41,024 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,025 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-26 00:18:41,025 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-11-26 00:18:41,025 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,025 INFO L895 garLoopResultBuilder]: At program point L54-2(lines 54 63) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse2 (= |ULTIMATE.start_main_~p~0#1| 1800)) (.cse3 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse4 (= |#NULL.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse6 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse7 (<= 0 |#StackHeapBarrier|)) (.cse8 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse9 (= |#NULL.base| 0))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~j~0#1| 0) .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9)))) [2022-11-26 00:18:41,026 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2022-11-26 00:18:41,026 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2022-11-26 00:18:41,026 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,026 INFO L895 garLoopResultBuilder]: At program point L38-2(lines 38 47) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse2 (= |ULTIMATE.start_main_~p~0#1| 1800)) (.cse3 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse4 (= |#NULL.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse6 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse7 (<= 0 |#StackHeapBarrier|)) (.cse8 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse9 (= |#NULL.base| 0))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~j~0#1| 0) .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2022-11-26 00:18:41,026 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-11-26 00:18:41,027 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2022-11-26 00:18:41,027 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,027 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 62) no Hoare annotation was computed. [2022-11-26 00:18:41,027 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,027 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,028 INFO L895 garLoopResultBuilder]: At program point L56-2(lines 56 61) the Hoare annotation is: (and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~m~0#1|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-26 00:18:41,028 INFO L899 garLoopResultBuilder]: For program point L56-3(lines 56 61) no Hoare annotation was computed. [2022-11-26 00:18:41,028 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 62) no Hoare annotation was computed. [2022-11-26 00:18:41,028 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,028 INFO L895 garLoopResultBuilder]: At program point L40-2(lines 40 45) the Hoare annotation is: (and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~m~0#1|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-26 00:18:41,029 INFO L899 garLoopResultBuilder]: For program point L40-3(lines 40 45) no Hoare annotation was computed. [2022-11-26 00:18:41,029 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-26 00:18:41,029 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,029 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,029 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-26 00:18:41,029 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:18:41,029 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,030 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,030 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,030 INFO L899 garLoopResultBuilder]: For program point L58-2(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,030 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 33) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse2 (= |ULTIMATE.start_main_~p~0#1| 1800)) (.cse3 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse4 (= |#NULL.offset| 0)) (.cse6 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse7 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse8 (= |#NULL.base| 0))) (or (let ((.cse0 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4)) (.cse5 (select |#memory_int| 1))) (and (= .cse0 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~i~0#1| 0) .cse1 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse0) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) .cse2 .cse3 (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 12 (select |#length| 2)) (= (select |#valid| 2) 1) .cse4 (= (select .cse5 0) 48) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~j~0#1| 0) .cse6 (= (select .cse5 1) 0) .cse7 (< 0 |#StackHeapBarrier|) .cse8)) (and .cse1 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) .cse4 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) .cse6 (<= 0 |#StackHeapBarrier|) .cse7 .cse8))) [2022-11-26 00:18:41,031 INFO L899 garLoopResultBuilder]: For program point L58-3(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,031 INFO L899 garLoopResultBuilder]: For program point L58-4(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,031 INFO L899 garLoopResultBuilder]: For program point L58-5(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,031 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,031 INFO L899 garLoopResultBuilder]: For program point L58-6(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,031 INFO L895 garLoopResultBuilder]: At program point L58-7(line 58) the Hoare annotation is: (and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~m~0#1|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~n~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-26 00:18:41,032 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-26 00:18:41,032 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,032 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,032 INFO L899 garLoopResultBuilder]: For program point L42-2(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,032 INFO L899 garLoopResultBuilder]: For program point L42-3(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,032 INFO L899 garLoopResultBuilder]: For program point L42-4(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,033 INFO L899 garLoopResultBuilder]: For program point L42-5(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,033 INFO L899 garLoopResultBuilder]: For program point L42-6(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,033 INFO L899 garLoopResultBuilder]: For program point L42-7(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2022-11-26 00:18:41,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-26 00:18:41,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-11-26 00:18:41,034 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-11-26 00:18:41,037 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:41,039 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:18:41,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:18:41 BoogieIcfgContainer [2022-11-26 00:18:41,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:18:41,079 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:18:41,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:18:41,079 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:18:41,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:16" (3/4) ... [2022-11-26 00:18:41,083 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:18:41,093 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-26 00:18:41,093 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-26 00:18:41,093 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-26 00:18:41,094 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:18:41,136 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:18:41,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:18:41,136 INFO L158 Benchmark]: Toolchain (without parser) took 25338.71ms. Allocated memory was 237.0MB in the beginning and 497.0MB in the end (delta: 260.0MB). Free memory was 206.8MB in the beginning and 413.5MB in the end (delta: -206.8MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2022-11-26 00:18:41,137 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:18:41,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.11ms. Allocated memory is still 237.0MB. Free memory was 206.8MB in the beginning and 195.6MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:18:41,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.71ms. Allocated memory is still 237.0MB. Free memory was 195.6MB in the beginning and 194.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:18:41,138 INFO L158 Benchmark]: Boogie Preprocessor took 61.85ms. Allocated memory is still 237.0MB. Free memory was 194.0MB in the beginning and 192.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:18:41,138 INFO L158 Benchmark]: RCFGBuilder took 587.77ms. Allocated memory is still 237.0MB. Free memory was 192.8MB in the beginning and 175.4MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:18:41,138 INFO L158 Benchmark]: TraceAbstraction took 24292.50ms. Allocated memory was 237.0MB in the beginning and 497.0MB in the end (delta: 260.0MB). Free memory was 174.6MB in the beginning and 416.7MB in the end (delta: -242.1MB). Peak memory consumption was 265.0MB. Max. memory is 16.1GB. [2022-11-26 00:18:41,139 INFO L158 Benchmark]: Witness Printer took 57.31ms. Allocated memory is still 497.0MB. Free memory was 416.7MB in the beginning and 413.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:18:41,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.11ms. Allocated memory is still 237.0MB. Free memory was 206.8MB in the beginning and 195.6MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.71ms. Allocated memory is still 237.0MB. Free memory was 195.6MB in the beginning and 194.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.85ms. Allocated memory is still 237.0MB. Free memory was 194.0MB in the beginning and 192.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 587.77ms. Allocated memory is still 237.0MB. Free memory was 192.8MB in the beginning and 175.4MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 24292.50ms. Allocated memory was 237.0MB in the beginning and 497.0MB in the end (delta: 260.0MB). Free memory was 174.6MB in the beginning and 416.7MB in the end (delta: -242.1MB). Peak memory consumption was 265.0MB. Max. memory is 16.1GB. * Witness Printer took 57.31ms. Allocated memory is still 497.0MB. Free memory was 416.7MB in the beginning and 413.5MB 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: 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, 64 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 24.2s, OverallIterations: 11, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1495 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1495 mSDsluCounter, 448 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 195 mSDsCounter, 267 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 849 IncrementalHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 267 mSolverCounterUnsat, 253 mSDtfsCounter, 849 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 711 GetRequests, 566 SyntacticMatches, 37 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=267occurred in iteration=10, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 189 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 56 NumberOfFragments, 501 HoareAnnotationTreeSize, 7 FomulaSimplifications, 1269 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4666 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 253 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 466 ConstructedInterpolants, 0 QuantifiedInterpolants, 1360 SizeOfPredicates, 10 NumberOfNonLiveVariables, 942 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 692/1006 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 2.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 20, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 54, TOOLS_POST_TIME: 2.3s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 54, TOOLS_QUANTIFIERELIM_TIME: 2.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.4s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 94, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 6, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 5, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 7, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 20, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 2.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 7, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 157, DAG_COMPRESSION_RETAINED_NODES: 58, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 28 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((m * n % 1073741824 * 4 == unknown-#length-unknown[B] && unknown-#length-unknown[3] == 12) && i == 0) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[A] == 1) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && \valid[B] == 1) && p == 1800) && A == 0) && \valid[1] == 1) && \valid[0] == 0) && 12 == unknown-#length-unknown[2]) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && j == 0) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((m == 1000 && 0 <= A) && i <= 2147483646) && p == 1800) && A == 0) && 0 <= i) && n <= j) && j <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: j <= 2147483646 && ((((((((((((i == 0 && m == 1000) && 0 <= A) && p == 1800) && A == 0) && #NULL == 0) && 0 <= B) && j == 0) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) || ((((((((((((m == 1000 && 0 <= A) && i <= 2147483646) && p == 1800) && A == 0) && 0 <= i) && n <= j) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0)) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((((m == 1000 && 0 <= A) && 0 <= j) && p == 1800) && A == 0) && 0 <= i) && j <= 2147483646) && #NULL == 0) && 0 <= B) && i < m) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((((((((i == 0 && m == 1000) && 0 <= A) && p == 1800) && A == 0) && #NULL == 0) && 0 <= B) && j == 0) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) || (((((((((((((m == 1000 && 0 <= A) && i <= 2147483646) && p == 1800) && A == 0) && 0 <= i) && n <= j) && j <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((((m == 1000 && 0 <= A) && 0 <= j) && p == 1800) && A == 0) && 0 <= i) && j <= 2147483646) && #NULL == 0) && 0 <= B) && i < m) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: ((((((((((((m == 1000 && 0 <= A) && 0 <= j) && p == 1800) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && i < m) && B == 0) && j < n) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: ((((((((((((m == 1000 && 0 <= A) && 0 <= j) && p == 1800) && A == 0) && 0 <= i) && j <= 2147483646) && #NULL == 0) && 0 <= B) && i < m) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-11-26 00:18:41,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f4e1b2-a5d9-45c9-b8fc-6e90433eb981/bin/utaipan-ByfvJB40ur/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