./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a9444e5380fed44b00432b26b7edd9414dfa93ba2d2f76306ea753732eae2b3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 16:01:05,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:01:05,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:01:05,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:01:05,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:01:05,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:01:05,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:01:05,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:01:05,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:01:05,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:01:05,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:01:05,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:01:05,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:01:05,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:01:05,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:01:05,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:01:05,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:01:05,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:01:05,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:01:05,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:01:05,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:01:05,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:01:05,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:01:05,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:01:05,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:01:05,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:01:05,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:01:05,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:01:05,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:01:05,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:01:05,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:01:05,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:01:05,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:01:05,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:01:05,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:01:05,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:01:05,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:01:05,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:01:05,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:01:06,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:01:06,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:01:06,001 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 16:01:06,043 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:01:06,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:01:06,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:01:06,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:01:06,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:01:06,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:01:06,046 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:01:06,047 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:01:06,047 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:01:06,047 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 16:01:06,048 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:01:06,048 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:01:06,049 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 16:01:06,049 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 16:01:06,049 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:01:06,049 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 16:01:06,050 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 16:01:06,050 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 16:01:06,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:01:06,051 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 16:01:06,051 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 16:01:06,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 16:01:06,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 16:01:06,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:01:06,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:01:06,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:01:06,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:01:06,053 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 16:01:06,053 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 16:01:06,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:01:06,053 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:01:06,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:01:06,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:01:06,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:01:06,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:01:06,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:01:06,055 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 16:01:06,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:01:06,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:01:06,056 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 16:01:06,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 16:01:06,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:01:06,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:01:06,057 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_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a9444e5380fed44b00432b26b7edd9414dfa93ba2d2f76306ea753732eae2b3 [2022-11-23 16:01:06,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:01:06,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:01:06,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:01:06,376 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:01:06,377 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:01:06,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2022-11-23 16:01:09,641 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:01:09,886 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:01:09,887 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2022-11-23 16:01:09,894 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/data/b926ca599/0c6330a133bc44a9a9c6308a31aab376/FLAG363c8802b [2022-11-23 16:01:09,915 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/data/b926ca599/0c6330a133bc44a9a9c6308a31aab376 [2022-11-23 16:01:09,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:01:09,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:01:09,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:01:09,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:01:09,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:01:09,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:01:09" (1/1) ... [2022-11-23 16:01:09,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c8d9ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:09, skipping insertion in model container [2022-11-23 16:01:09,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:01:09" (1/1) ... [2022-11-23 16:01:09,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:01:09,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:01:10,124 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_c3653c35-17b5-4a4d-8360-dcb27d466b59/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i[873,886] [2022-11-23 16:01:10,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:01:10,146 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:01:10,161 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_c3653c35-17b5-4a4d-8360-dcb27d466b59/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i[873,886] [2022-11-23 16:01:10,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:01:10,179 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:01:10,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10 WrapperNode [2022-11-23 16:01:10,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:01:10,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:01:10,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:01:10,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:01:10,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (1/1) ... [2022-11-23 16:01:10,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (1/1) ... [2022-11-23 16:01:10,217 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2022-11-23 16:01:10,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:01:10,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:01:10,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:01:10,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:01:10,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (1/1) ... [2022-11-23 16:01:10,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (1/1) ... [2022-11-23 16:01:10,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (1/1) ... [2022-11-23 16:01:10,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (1/1) ... [2022-11-23 16:01:10,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (1/1) ... [2022-11-23 16:01:10,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (1/1) ... [2022-11-23 16:01:10,251 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (1/1) ... [2022-11-23 16:01:10,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (1/1) ... [2022-11-23 16:01:10,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:01:10,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:01:10,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:01:10,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:01:10,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (1/1) ... [2022-11-23 16:01:10,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:01:10,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:01:10,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:01:10,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:01:10,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 16:01:10,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 16:01:10,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:01:10,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:01:10,404 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:01:10,406 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:01:10,535 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:01:10,561 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:01:10,562 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 16:01:10,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:01:10 BoogieIcfgContainer [2022-11-23 16:01:10,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:01:10,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:01:10,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:01:10,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:01:10,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:01:09" (1/3) ... [2022-11-23 16:01:10,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fe7f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:01:10, skipping insertion in model container [2022-11-23 16:01:10,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:01:10" (2/3) ... [2022-11-23 16:01:10,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fe7f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:01:10, skipping insertion in model container [2022-11-23 16:01:10,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:01:10" (3/3) ... [2022-11-23 16:01:10,575 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark10_conjunctive.i [2022-11-23 16:01:10,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:01:10,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-23 16:01:10,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:01:10,667 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;@5bb637cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:01:10,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 16:01:10,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 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) [2022-11-23 16:01:10,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 16:01:10,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:10,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 16:01:10,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:01:10,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:10,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2241565, now seen corresponding path program 1 times [2022-11-23 16:01:10,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:10,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114428761] [2022-11-23 16:01:10,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:10,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:10,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:10,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:10,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114428761] [2022-11-23 16:01:10,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114428761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:01:10,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:01:10,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:01:10,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787230717] [2022-11-23 16:01:10,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:01:10,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:01:10,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:10,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:01:10,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:01:10,975 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:01:11,103 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-11-23 16:01:11,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:01:11,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-23 16:01:11,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:01:11,123 INFO L225 Difference]: With dead ends: 22 [2022-11-23 16:01:11,138 INFO L226 Difference]: Without dead ends: 15 [2022-11-23 16:01:11,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:01:11,146 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:01:11,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:01:11,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-23 16:01:11,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-23 16:01:11,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-23 16:01:11,186 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2022-11-23 16:01:11,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:11,187 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-23 16:01:11,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,188 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-23 16:01:11,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 16:01:11,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:11,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 16:01:11,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 16:01:11,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:01:11,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:11,191 INFO L85 PathProgramCache]: Analyzing trace with hash 69488565, now seen corresponding path program 1 times [2022-11-23 16:01:11,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:11,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416384898] [2022-11-23 16:01:11,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:11,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:11,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:11,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:11,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416384898] [2022-11-23 16:01:11,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416384898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:01:11,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:01:11,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:01:11,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659654994] [2022-11-23 16:01:11,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:01:11,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:01:11,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:11,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:01:11,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:01:11,255 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:01:11,328 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-23 16:01:11,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:01:11,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 16:01:11,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:01:11,329 INFO L225 Difference]: With dead ends: 16 [2022-11-23 16:01:11,330 INFO L226 Difference]: Without dead ends: 15 [2022-11-23 16:01:11,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:01:11,332 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:01:11,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:01:11,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-23 16:01:11,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-23 16:01:11,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-23 16:01:11,338 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2022-11-23 16:01:11,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:11,338 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-23 16:01:11,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,339 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-23 16:01:11,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 16:01:11,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:11,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 16:01:11,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 16:01:11,340 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:01:11,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:11,341 INFO L85 PathProgramCache]: Analyzing trace with hash -2140821729, now seen corresponding path program 1 times [2022-11-23 16:01:11,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:11,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942499112] [2022-11-23 16:01:11,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:11,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:11,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:11,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942499112] [2022-11-23 16:01:11,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942499112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:01:11,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:01:11,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 16:01:11,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7109374] [2022-11-23 16:01:11,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:01:11,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:01:11,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:11,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:01:11,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:01:11,464 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:01:11,489 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-23 16:01:11,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:01:11,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 16:01:11,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:01:11,490 INFO L225 Difference]: With dead ends: 15 [2022-11-23 16:01:11,491 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 16:01:11,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:01:11,493 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:01:11,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:01:11,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 16:01:11,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-23 16:01:11,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-23 16:01:11,499 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2022-11-23 16:01:11,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:11,500 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-23 16:01:11,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,500 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-23 16:01:11,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 16:01:11,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:11,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:01:11,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 16:01:11,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:01:11,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:11,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1940964105, now seen corresponding path program 1 times [2022-11-23 16:01:11,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:11,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414388402] [2022-11-23 16:01:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:11,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:11,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:11,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:11,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414388402] [2022-11-23 16:01:11,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414388402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:01:11,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:01:11,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:01:11,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318884115] [2022-11-23 16:01:11,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:01:11,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:01:11,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:11,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:01:11,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:01:11,556 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:01:11,585 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-23 16:01:11,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:01:11,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 16:01:11,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:01:11,587 INFO L225 Difference]: With dead ends: 17 [2022-11-23 16:01:11,587 INFO L226 Difference]: Without dead ends: 16 [2022-11-23 16:01:11,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:01:11,590 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:01:11,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:01:11,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-23 16:01:11,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-23 16:01:11,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-23 16:01:11,596 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2022-11-23 16:01:11,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:11,597 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-23 16:01:11,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,597 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-23 16:01:11,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 16:01:11,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:11,598 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:01:11,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 16:01:11,599 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:01:11,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:11,600 INFO L85 PathProgramCache]: Analyzing trace with hash -116887834, now seen corresponding path program 1 times [2022-11-23 16:01:11,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:11,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323401727] [2022-11-23 16:01:11,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:11,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:11,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:11,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:11,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323401727] [2022-11-23 16:01:11,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323401727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:01:11,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:01:11,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:01:11,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185398965] [2022-11-23 16:01:11,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:01:11,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 16:01:11,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:11,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 16:01:11,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:01:11,697 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:01:11,753 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-23 16:01:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 16:01:11,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-23 16:01:11,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:01:11,755 INFO L225 Difference]: With dead ends: 16 [2022-11-23 16:01:11,755 INFO L226 Difference]: Without dead ends: 15 [2022-11-23 16:01:11,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-23 16:01:11,757 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:01:11,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:01:11,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-23 16:01:11,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-23 16:01:11,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-23 16:01:11,763 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2022-11-23 16:01:11,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:11,763 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-23 16:01:11,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:11,764 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-23 16:01:11,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 16:01:11,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:11,765 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:01:11,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 16:01:11,783 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:01:11,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash 671444492, now seen corresponding path program 1 times [2022-11-23 16:01:11,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:11,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989642437] [2022-11-23 16:01:11,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:11,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:11,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:11,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989642437] [2022-11-23 16:01:11,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989642437] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:01:11,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387107339] [2022-11-23 16:01:11,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:11,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:01:11,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:01:11,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:01:11,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 16:01:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:12,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:01:12,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:01:12,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:12,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:01:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:12,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387107339] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:01:12,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [842004005] [2022-11-23 16:01:12,221 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-23 16:01:12,222 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:01:12,226 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:01:12,233 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:01:12,234 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:01:12,595 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:01:13,033 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '292#(and (< 2147483647 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 16:01:13,033 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:01:13,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:01:13,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-23 16:01:13,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736099099] [2022-11-23 16:01:13,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:01:13,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 16:01:13,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:13,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 16:01:13,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-11-23 16:01:13,037 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:13,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:01:13,217 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-23 16:01:13,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 16:01:13,218 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 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 11 [2022-11-23 16:01:13,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:01:13,218 INFO L225 Difference]: With dead ends: 27 [2022-11-23 16:01:13,219 INFO L226 Difference]: Without dead ends: 26 [2022-11-23 16:01:13,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-11-23 16:01:13,221 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:01:13,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 8 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 16:01:13,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-23 16:01:13,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2022-11-23 16:01:13,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:13,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-11-23 16:01:13,229 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 11 [2022-11-23 16:01:13,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:13,230 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-23 16:01:13,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:13,231 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-11-23 16:01:13,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 16:01:13,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:13,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-23 16:01:13,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 16:01:13,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:01:13,438 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:01:13,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:13,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1013064078, now seen corresponding path program 1 times [2022-11-23 16:01:13,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:13,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754651908] [2022-11-23 16:01:13,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:13,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:13,511 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 16:01:13,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:13,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754651908] [2022-11-23 16:01:13,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754651908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:01:13,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:01:13,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:01:13,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822266905] [2022-11-23 16:01:13,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:01:13,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:01:13,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:13,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:01:13,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:01:13,517 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) [2022-11-23 16:01:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:01:13,542 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-11-23 16:01:13,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:01:13,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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 13 [2022-11-23 16:01:13,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:01:13,545 INFO L225 Difference]: With dead ends: 25 [2022-11-23 16:01:13,545 INFO L226 Difference]: Without dead ends: 24 [2022-11-23 16:01:13,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:01:13,550 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:01:13,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 16:01:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-23 16:01:13,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-23 16:01:13,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:13,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2022-11-23 16:01:13,567 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2022-11-23 16:01:13,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:13,568 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2022-11-23 16:01:13,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) [2022-11-23 16:01:13,569 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2022-11-23 16:01:13,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 16:01:13,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:13,571 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1] [2022-11-23 16:01:13,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 16:01:13,572 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:01:13,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:13,575 INFO L85 PathProgramCache]: Analyzing trace with hash -670989574, now seen corresponding path program 2 times [2022-11-23 16:01:13,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:13,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143510490] [2022-11-23 16:01:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:13,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:13,770 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:13,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:13,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143510490] [2022-11-23 16:01:13,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143510490] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:01:13,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501427112] [2022-11-23 16:01:13,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 16:01:13,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:01:13,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:01:13,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:01:13,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 16:01:13,849 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-23 16:01:13,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 16:01:13,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 16:01:13,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:01:13,973 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:13,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:01:14,187 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:14,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501427112] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:01:14,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1021977953] [2022-11-23 16:01:14,194 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-23 16:01:14,194 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:01:14,195 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:01:14,195 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:01:14,195 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:01:14,394 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:01:14,880 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '576#(and (< 2147483647 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 16:01:14,881 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:01:14,881 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:01:14,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-11-23 16:01:14,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79191784] [2022-11-23 16:01:14,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:01:14,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-23 16:01:14,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:14,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-23 16:01:14,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2022-11-23 16:01:14,883 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:15,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:01:15,417 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2022-11-23 16:01:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 16:01:15,418 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 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 23 [2022-11-23 16:01:15,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:01:15,419 INFO L225 Difference]: With dead ends: 49 [2022-11-23 16:01:15,419 INFO L226 Difference]: Without dead ends: 48 [2022-11-23 16:01:15,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-11-23 16:01:15,420 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 16:01:15,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 2 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 16:01:15,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-23 16:01:15,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-23 16:01:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 47 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:15,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2022-11-23 16:01:15,429 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 23 [2022-11-23 16:01:15,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:15,429 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2022-11-23 16:01:15,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:15,430 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2022-11-23 16:01:15,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 16:01:15,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:15,431 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1] [2022-11-23 16:01:15,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 16:01:15,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 16:01:15,632 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:01:15,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:15,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1892201002, now seen corresponding path program 3 times [2022-11-23 16:01:15,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:15,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622153257] [2022-11-23 16:01:15,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:15,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:16,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:16,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622153257] [2022-11-23 16:01:16,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622153257] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:01:16,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911483740] [2022-11-23 16:01:16,063 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 16:01:16,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:01:16,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:01:16,066 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:01:16,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 16:01:16,129 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 16:01:16,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 16:01:16,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 16:01:16,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:01:16,570 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:16,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:01:17,147 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:17,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911483740] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:01:17,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1457965432] [2022-11-23 16:01:17,150 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-23 16:01:17,150 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:01:17,150 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:01:17,151 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:01:17,151 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:01:17,304 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:01:18,129 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1043#(and (< 2147483647 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 16:01:18,129 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:01:18,130 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:01:18,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 41 [2022-11-23 16:01:18,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278361513] [2022-11-23 16:01:18,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:01:18,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-23 16:01:18,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:18,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-23 16:01:18,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=1878, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 16:01:18,133 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 42 states, 41 states have (on average 3.024390243902439) internal successors, (124), 42 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) [2022-11-23 16:01:20,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:01:20,181 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2022-11-23 16:01:20,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-23 16:01:20,182 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.024390243902439) internal successors, (124), 42 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) Word has length 47 [2022-11-23 16:01:20,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:01:20,183 INFO L225 Difference]: With dead ends: 97 [2022-11-23 16:01:20,183 INFO L226 Difference]: Without dead ends: 96 [2022-11-23 16:01:20,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 101 SyntacticMatches, 8 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3112 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2105, Invalid=6267, Unknown=0, NotChecked=0, Total=8372 [2022-11-23 16:01:20,189 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 253 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 16:01:20,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 2 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 16:01:20,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-23 16:01:20,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-11-23 16:01:20,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:20,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2022-11-23 16:01:20,201 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 47 [2022-11-23 16:01:20,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:20,202 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2022-11-23 16:01:20,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.024390243902439) internal successors, (124), 42 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) [2022-11-23 16:01:20,202 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2022-11-23 16:01:20,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-23 16:01:20,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:20,205 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1] [2022-11-23 16:01:20,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 16:01:20,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:01:20,411 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:01:20,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:20,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1263835250, now seen corresponding path program 4 times [2022-11-23 16:01:20,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:20,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261592450] [2022-11-23 16:01:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:20,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:21,586 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:21,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:21,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261592450] [2022-11-23 16:01:21,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261592450] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:01:21,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002009820] [2022-11-23 16:01:21,586 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 16:01:21,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:01:21,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:01:21,588 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:01:21,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 16:01:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:21,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-23 16:01:21,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:01:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:23,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:01:25,467 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:25,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002009820] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:01:25,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [584582410] [2022-11-23 16:01:25,470 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-23 16:01:25,470 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:01:25,470 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:01:25,470 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:01:25,471 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:01:25,599 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:01:27,146 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2020#(and (< 2147483647 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 16:01:27,146 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:01:27,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:01:27,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 93 [2022-11-23 16:01:27,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016320850] [2022-11-23 16:01:27,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:01:27,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-23 16:01:27,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:27,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-23 16:01:27,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1516, Invalid=8384, Unknown=0, NotChecked=0, Total=9900 [2022-11-23 16:01:27,157 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand has 94 states, 93 states have (on average 3.010752688172043) internal successors, (280), 94 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) [2022-11-23 16:01:35,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:01:35,382 INFO L93 Difference]: Finished difference Result 199 states and 215 transitions. [2022-11-23 16:01:35,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-11-23 16:01:35,383 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.010752688172043) internal successors, (280), 94 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) Word has length 95 [2022-11-23 16:01:35,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:01:35,385 INFO L225 Difference]: With dead ends: 199 [2022-11-23 16:01:35,385 INFO L226 Difference]: Without dead ends: 198 [2022-11-23 16:01:35,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 201 SyntacticMatches, 16 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15438 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=9775, Invalid=29627, Unknown=0, NotChecked=0, Total=39402 [2022-11-23 16:01:35,397 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 952 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 2941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-23 16:01:35,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 2 Invalid, 2941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-23 16:01:35,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-23 16:01:35,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-23 16:01:35,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 1.0050761421319796) internal successors, (198), 197 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:01:35,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 198 transitions. [2022-11-23 16:01:35,419 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 198 transitions. Word has length 95 [2022-11-23 16:01:35,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:01:35,420 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 198 transitions. [2022-11-23 16:01:35,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.010752688172043) internal successors, (280), 94 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) [2022-11-23 16:01:35,420 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 198 transitions. [2022-11-23 16:01:35,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-23 16:01:35,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:01:35,424 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 1, 1, 1] [2022-11-23 16:01:35,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 16:01:35,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:01:35,635 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:01:35,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:01:35,635 INFO L85 PathProgramCache]: Analyzing trace with hash -702714219, now seen corresponding path program 5 times [2022-11-23 16:01:35,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:01:35,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131023622] [2022-11-23 16:01:35,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:01:35,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:01:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:01:39,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:39,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:01:39,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131023622] [2022-11-23 16:01:39,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131023622] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:01:39,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090335289] [2022-11-23 16:01:39,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 16:01:39,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:01:39,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:01:39,710 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:01:39,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 16:01:39,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2022-11-23 16:01:39,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 16:01:39,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-23 16:01:39,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:01:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:44,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:01:50,967 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:01:50,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090335289] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:01:50,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1046523936] [2022-11-23 16:01:50,969 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-23 16:01:50,970 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:01:50,970 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:01:50,970 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:01:50,970 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:01:51,117 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:01:56,271 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4059#(and (< 2147483647 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 16:01:56,271 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:01:56,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:01:56,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 195 [2022-11-23 16:01:56,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313529973] [2022-11-23 16:01:56,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:01:56,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2022-11-23 16:01:56,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:01:56,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2022-11-23 16:01:56,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7582, Invalid=33020, Unknown=0, NotChecked=0, Total=40602 [2022-11-23 16:01:56,280 INFO L87 Difference]: Start difference. First operand 198 states and 198 transitions. Second operand has 196 states, 195 states have (on average 3.0205128205128204) internal successors, (589), 196 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:02:55,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:02:55,272 INFO L93 Difference]: Finished difference Result 397 states and 429 transitions. [2022-11-23 16:02:55,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2022-11-23 16:02:55,273 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 3.0205128205128204) internal successors, (589), 196 states have internal predecessors, (589), 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 197 [2022-11-23 16:02:55,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:02:55,277 INFO L225 Difference]: With dead ends: 397 [2022-11-23 16:02:55,277 INFO L226 Difference]: Without dead ends: 396 [2022-11-23 16:02:55,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 861 GetRequests, 422 SyntacticMatches, 33 SemanticMatches, 406 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70645 ImplicationChecksByTransitivity, 68.9s TimeCoverageRelationStatistics Valid=41688, Invalid=124368, Unknown=0, NotChecked=0, Total=166056 [2022-11-23 16:02:55,294 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4264 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11086 mSolverCounterSat, 1927 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4264 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 13013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1927 IncrementalHoareTripleChecker+Valid, 11086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:02:55,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4264 Valid, 2 Invalid, 13013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1927 Valid, 11086 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-23 16:02:55,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-11-23 16:02:55,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2022-11-23 16:02:55,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 395 states have (on average 1.0025316455696203) internal successors, (396), 395 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:02:55,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 396 transitions. [2022-11-23 16:02:55,341 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 396 transitions. Word has length 197 [2022-11-23 16:02:55,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:02:55,342 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 396 transitions. [2022-11-23 16:02:55,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 3.0205128205128204) internal successors, (589), 196 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:02:55,343 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 396 transitions. [2022-11-23 16:02:55,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-11-23 16:02:55,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:02:55,353 INFO L195 NwaCegarLoop]: trace histogram [66, 66, 65, 65, 65, 65, 1, 1, 1] [2022-11-23 16:02:55,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 16:02:55,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:02:55,560 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:02:55,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:02:55,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1238195148, now seen corresponding path program 6 times [2022-11-23 16:02:55,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:02:55,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316149609] [2022-11-23 16:02:55,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:02:55,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:02:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:03:07,801 INFO L134 CoverageAnalysis]: Checked inductivity of 12675 backedges. 0 proven. 12675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:03:07,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:03:07,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316149609] [2022-11-23 16:03:07,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316149609] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 16:03:07,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40106338] [2022-11-23 16:03:07,802 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 16:03:07,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:03:07,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:03:07,803 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:03:07,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 16:03:07,953 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 16:03:07,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 16:03:07,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 133 conjunts are in the unsatisfiable core [2022-11-23 16:03:07,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:03:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 12675 backedges. 0 proven. 12675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:03:09,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:03:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 12675 backedges. 0 proven. 12675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:03:27,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40106338] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:03:27,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1415801899] [2022-11-23 16:03:27,030 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-23 16:03:27,030 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:03:27,030 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:03:27,030 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:03:27,031 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:03:27,120 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 16:03:46,041 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8034#(and (< 2147483647 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 16:03:46,041 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 16:03:46,041 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 16:03:46,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [132, 132, 132] total 267 [2022-11-23 16:03:46,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632139726] [2022-11-23 16:03:46,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 16:03:46,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 268 states [2022-11-23 16:03:46,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:03:46,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 268 interpolants. [2022-11-23 16:03:46,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17731, Invalid=57071, Unknown=0, NotChecked=0, Total=74802 [2022-11-23 16:03:46,054 INFO L87 Difference]: Start difference. First operand 396 states and 396 transitions. Second operand has 268 states, 267 states have (on average 3.0037453183520597) internal successors, (802), 268 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:08:27,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:08:27,816 INFO L93 Difference]: Finished difference Result 793 states and 858 transitions. [2022-11-23 16:08:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 453 states. [2022-11-23 16:08:27,817 INFO L78 Accepts]: Start accepts. Automaton has has 268 states, 267 states have (on average 3.0037453183520597) internal successors, (802), 268 states have internal predecessors, (802), 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 395 [2022-11-23 16:08:27,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:08:27,820 INFO L225 Difference]: With dead ends: 793 [2022-11-23 16:08:27,821 INFO L226 Difference]: Without dead ends: 792 [2022-11-23 16:08:27,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1763 GetRequests, 977 SyntacticMatches, 66 SemanticMatches, 720 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210738 ImplicationChecksByTransitivity, 300.9s TimeCoverageRelationStatistics Valid=125233, Invalid=395329, Unknown=0, NotChecked=0, Total=520562 [2022-11-23 16:08:27,846 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 15324 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40070 mSolverCounterSat, 7708 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15324 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 47778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7708 IncrementalHoareTripleChecker+Valid, 40070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2022-11-23 16:08:27,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15324 Valid, 2 Invalid, 47778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7708 Valid, 40070 Invalid, 0 Unknown, 0 Unchecked, 20.1s Time] [2022-11-23 16:08:27,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2022-11-23 16:08:27,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2022-11-23 16:08:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 1.0012642225031605) internal successors, (792), 791 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:08:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 792 transitions. [2022-11-23 16:08:27,963 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 792 transitions. Word has length 395 [2022-11-23 16:08:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:08:27,964 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 792 transitions. [2022-11-23 16:08:27,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 268 states, 267 states have (on average 3.0037453183520597) internal successors, (802), 268 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:08:27,965 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 792 transitions. [2022-11-23 16:08:27,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2022-11-23 16:08:27,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:08:27,989 INFO L195 NwaCegarLoop]: trace histogram [132, 132, 131, 131, 131, 131, 1, 1, 1] [2022-11-23 16:08:28,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 16:08:28,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-23 16:08:28,196 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 16:08:28,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:08:28,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1565531770, now seen corresponding path program 7 times [2022-11-23 16:08:28,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:08:28,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041702752] [2022-11-23 16:08:28,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:28,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:08:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:08:39,888 INFO L134 CoverageAnalysis]: Checked inductivity of 51483 backedges. 48507 proven. 0 refuted. 0 times theorem prover too weak. 2976 trivial. 0 not checked. [2022-11-23 16:08:39,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:08:39,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041702752] [2022-11-23 16:08:39,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041702752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:08:39,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:08:39,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2022-11-23 16:08:39,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902452039] [2022-11-23 16:08:39,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:08:39,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-11-23 16:08:39,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:08:39,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-11-23 16:08:39,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2022-11-23 16:08:39,894 INFO L87 Difference]: Start difference. First operand 792 states and 792 transitions. Second operand has 102 states, 102 states have (on average 5.9411764705882355) internal successors, (606), 102 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:08:41,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:08:41,784 INFO L93 Difference]: Finished difference Result 792 states and 792 transitions. [2022-11-23 16:08:41,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-11-23 16:08:41,787 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 5.9411764705882355) internal successors, (606), 102 states have internal predecessors, (606), 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 791 [2022-11-23 16:08:41,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:08:41,789 INFO L225 Difference]: With dead ends: 792 [2022-11-23 16:08:41,789 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 16:08:41,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2022-11-23 16:08:41,793 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2685 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:08:41,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2685 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 16:08:41,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 16:08:41,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 16:08:41,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:08:41,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 16:08:41,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 791 [2022-11-23 16:08:41,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:08:41,795 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 16:08:41,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 5.9411764705882355) internal successors, (606), 102 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:08:41,796 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 16:08:41,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 16:08:41,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-23 16:08:41,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-23 16:08:41,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-23 16:08:41,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-23 16:08:41,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 16:08:41,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 16:08:50,458 WARN L233 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 1030 DAG size of output: 473 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-23 16:08:50,467 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-23 16:08:50,467 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 16:08:50,467 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-23 16:08:50,467 INFO L902 garLoopResultBuilder]: At program point L29(lines 19 30) the Hoare annotation is: true [2022-11-23 16:08:50,467 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-11-23 16:08:50,468 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-11-23 16:08:50,469 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 27) the Hoare annotation is: (let ((.cse9 (* 2 |ULTIMATE.start_main_~i~0#1|))) (let ((.cse7 (+ |ULTIMATE.start_main_~c~0#1| .cse9))) (let ((.cse2 (* |ULTIMATE.start_main_~i~0#1| 10)) (.cse6 (* 14 |ULTIMATE.start_main_~i~0#1|)) (.cse10 (* 9 |ULTIMATE.start_main_~i~0#1|)) (.cse11 (* |ULTIMATE.start_main_~i~0#1| 8)) (.cse4 (+ |ULTIMATE.start_main_~c~0#1| (* 3 |ULTIMATE.start_main_~i~0#1|))) (.cse8 (* 19 |ULTIMATE.start_main_~i~0#1|)) (.cse5 (* 6 |ULTIMATE.start_main_~i~0#1|)) (.cse3 (+ |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~i~0#1|)) (.cse0 (< .cse7 2147483647)) (.cse1 (<= 0 |ULTIMATE.start_main_~c~0#1|))) (or (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1596) (* 56 |ULTIMATE.start_main_~i~0#1|))) (and .cse1 (<= |ULTIMATE.start_main_~i~0#1| 113) (<= (+ |ULTIMATE.start_main_~c~0#1| 136) (* 16 |ULTIMATE.start_main_~i~0#1|))) (and (<= (+ |ULTIMATE.start_main_~c~0#1| 210) (* |ULTIMATE.start_main_~i~0#1| 20)) .cse1 (< (+ .cse2 |ULTIMATE.start_main_~c~0#1|) 2147483593)) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1378) (* 52 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1128) (* 47 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 703) (* |ULTIMATE.start_main_~i~0#1| 37))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 666) (* |ULTIMATE.start_main_~i~0#1| 36))) (and .cse0 .cse1 (<= (+ 861 |ULTIMATE.start_main_~c~0#1|) (* 41 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ 1953 |ULTIMATE.start_main_~c~0#1|) (* 62 |ULTIMATE.start_main_~i~0#1|))) (and (< |ULTIMATE.start_main_~c~0#1| 2147479228) (<= 66 |ULTIMATE.start_main_~i~0#1|) .cse1 (< .cse3 2147483647)) (and .cse1 (<= |ULTIMATE.start_main_~i~0#1| 1) (<= (+ |ULTIMATE.start_main_~c~0#1| 1) |ULTIMATE.start_main_~i~0#1|)) (and .cse1 (<= (+ 66 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 11)) (<= |ULTIMATE.start_main_~i~0#1| 110)) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 528) (* 32 |ULTIMATE.start_main_~i~0#1|))) (and .cse1 (< .cse4 2147483642) (<= (+ |ULTIMATE.start_main_~c~0#1| 55) .cse2)) (and .cse1 (<= .cse3 0) (<= |ULTIMATE.start_main_~c~0#1| .cse5)) (and (<= (+ 2080 |ULTIMATE.start_main_~c~0#1|) (* 64 |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_main_~i~0#1| 100) .cse1) (and (<= (+ 351 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 26)) .cse1 (< (+ .cse5 |ULTIMATE.start_main_~c~0#1|) 2147483633)) (and .cse0 (<= (+ |ULTIMATE.start_main_~c~0#1| 780) (* |ULTIMATE.start_main_~i~0#1| 39)) .cse1) (and .cse1 (< .cse3 2147480876) (<= 67 |ULTIMATE.start_main_~i~0#1|)) (and .cse1 (<= (+ 153 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 17)) (< (+ |ULTIMATE.start_main_~c~0#1| .cse6) 2147483557)) (and .cse0 (<= (+ |ULTIMATE.start_main_~c~0#1| 1770) (* 59 |ULTIMATE.start_main_~i~0#1|)) .cse1) (and .cse0 .cse1 (<= (+ 465 |ULTIMATE.start_main_~c~0#1|) (* 30 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1081) (* 46 |ULTIMATE.start_main_~i~0#1|))) (and (<= |ULTIMATE.start_main_~i~0#1| 111) .cse1 (<= (+ 91 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 13))) (and .cse0 (<= (+ |ULTIMATE.start_main_~c~0#1| 1891) (* |ULTIMATE.start_main_~i~0#1| 61)) .cse1) (and .cse0 .cse1 (<= (+ 903 |ULTIMATE.start_main_~c~0#1|) (* 42 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ 990 |ULTIMATE.start_main_~c~0#1|) (* 44 |ULTIMATE.start_main_~i~0#1|))) (and .cse1 (<= (+ 40 |ULTIMATE.start_main_~c~0#1|) .cse2) (<= |ULTIMATE.start_main_~i~0#1| 5)) (and (<= (+ 595 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 34)) .cse1 (< .cse7 2147481323)) (and (<= (+ |ULTIMATE.start_main_~c~0#1| 1711) (* |ULTIMATE.start_main_~i~0#1| 58)) .cse0 .cse1) (and (<= (+ |ULTIMATE.start_main_~c~0#1| 1431) (* 53 |ULTIMATE.start_main_~i~0#1|)) .cse0 .cse1) (and .cse1 (< (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~i~0#1| 12)) 2147483570) (<= (+ 190 |ULTIMATE.start_main_~c~0#1|) .cse8)) (and .cse0 (<= (+ 3 |ULTIMATE.start_main_~c~0#1|) .cse9) .cse1) (and .cse1 (<= |ULTIMATE.start_main_~i~0#1| 112) (<= (+ |ULTIMATE.start_main_~c~0#1| 105) .cse6)) (and (<= (+ 253 |ULTIMATE.start_main_~c~0#1|) (* 22 |ULTIMATE.start_main_~i~0#1|)) .cse1 (< (+ |ULTIMATE.start_main_~c~0#1| .cse10) 2147483612)) (and .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 36) .cse11) (<= |ULTIMATE.start_main_~i~0#1| 106)) (and .cse0 .cse1 (<= (+ 1225 |ULTIMATE.start_main_~c~0#1|) (* 49 |ULTIMATE.start_main_~i~0#1|))) (and .cse1 (<= |ULTIMATE.start_main_~i~0#1| 4) (<= (+ 30 |ULTIMATE.start_main_~c~0#1|) .cse10)) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1540) (* |ULTIMATE.start_main_~i~0#1| 55))) (and (<= (+ 156 |ULTIMATE.start_main_~c~0#1|) (* |ULTIMATE.start_main_~i~0#1| 18)) .cse1 (<= 24 |ULTIMATE.start_main_~i~0#1|) (< (+ .cse11 |ULTIMATE.start_main_~c~0#1|) 2147483620)) (and .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 406) (* |ULTIMATE.start_main_~i~0#1| 28)) (< .cse4 2147483645)) (and .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 175) .cse8) (<= 25 |ULTIMATE.start_main_~i~0#1|) (< (+ |ULTIMATE.start_main_~c~0#1| (* 7 |ULTIMATE.start_main_~i~0#1|)) 2147483627)) (and .cse0 .cse1 (<= (+ 21 |ULTIMATE.start_main_~c~0#1|) .cse5)) (and (or (< 87 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482426)) (or (< .cse3 2147481226) (< 72 |ULTIMATE.start_main_~i~0#1|)) (<= .cse3 2147483647) (or (< 78 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481679)) (or (< 88 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482514)) (or (< .cse3 2147482784) (< 91 |ULTIMATE.start_main_~i~0#1|)) (or (< 73 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481299)) (or (< .cse3 2147481838) (< 80 |ULTIMATE.start_main_~i~0#1|)) (or (< 76 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481524)) (or (< 69 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481013)) (or (< 93 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482969)) (or (< 82 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482001)) (or (< 89 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482603)) (or (< .cse3 2147481083) (< 70 |ULTIMATE.start_main_~i~0#1|)) .cse1 (or (< 74 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481373)) (or (< 81 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481919)) (or (< .cse3 2147482168) (< 84 |ULTIMATE.start_main_~i~0#1|)) (or (< 71 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481154)) (or (not (< |ULTIMATE.start_main_~i~0#1| 100)) .cse0) (or (< .cse3 2147482084) (< 83 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse3 2147483158) (< 95 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse3 2147480944) (< 68 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse3 2147482876) (< 92 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse3 2147481601) (< 77 |ULTIMATE.start_main_~i~0#1|)) (or (< 86 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482339)) (or (< 98 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147483449)) (or (< .cse3 2147481448) (< 75 |ULTIMATE.start_main_~i~0#1|)) (or (< .cse3 2147483063) (< 94 |ULTIMATE.start_main_~i~0#1|)) (<= 68 |ULTIMATE.start_main_~i~0#1|) (or (< 85 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482253)) (or (< 79 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147481758)) (or (< 96 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147483254)) (or (< 90 |ULTIMATE.start_main_~i~0#1|) (< .cse3 2147482693)) (or (< .cse3 2147483351) (< 97 |ULTIMATE.start_main_~i~0#1|))) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~c~0#1| 1275) (* |ULTIMATE.start_main_~i~0#1| 50))))))) [2022-11-23 16:08:50,470 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 23 27) no Hoare annotation was computed. [2022-11-23 16:08:50,470 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-23 16:08:50,470 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-23 16:08:50,470 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 16:08:50,471 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-11-23 16:08:50,471 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2022-11-23 16:08:50,471 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2022-11-23 16:08:50,471 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2022-11-23 16:08:50,474 INFO L444 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1] [2022-11-23 16:08:50,477 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 16:08:50,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:08:50 BoogieIcfgContainer [2022-11-23 16:08:50,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 16:08:50,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 16:08:50,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 16:08:50,507 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 16:08:50,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:01:10" (3/4) ... [2022-11-23 16:08:50,511 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 16:08:50,520 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 16:08:50,520 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 16:08:50,520 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 16:08:50,520 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 16:08:50,553 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 16:08:50,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 16:08:50,553 INFO L158 Benchmark]: Toolchain (without parser) took 460633.95ms. Allocated memory was 157.3MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 126.6MB in the beginning and 928.6MB in the end (delta: -802.0MB). Peak memory consumption was 347.5MB. Max. memory is 16.1GB. [2022-11-23 16:08:50,554 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 115.3MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 16:08:50,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.90ms. Allocated memory is still 157.3MB. Free memory was 126.6MB in the beginning and 116.9MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 16:08:50,554 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.60ms. Allocated memory is still 157.3MB. Free memory was 116.9MB in the beginning and 115.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 16:08:50,555 INFO L158 Benchmark]: Boogie Preprocessor took 35.13ms. Allocated memory is still 157.3MB. Free memory was 115.4MB in the beginning and 114.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 16:08:50,555 INFO L158 Benchmark]: RCFGBuilder took 310.91ms. Allocated memory is still 157.3MB. Free memory was 114.2MB in the beginning and 103.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 16:08:50,555 INFO L158 Benchmark]: TraceAbstraction took 459938.56ms. Allocated memory was 157.3MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 102.8MB in the beginning and 930.7MB in the end (delta: -827.9MB). Peak memory consumption was 873.9MB. Max. memory is 16.1GB. [2022-11-23 16:08:50,556 INFO L158 Benchmark]: Witness Printer took 46.19ms. Allocated memory is still 1.3GB. Free memory was 930.7MB in the beginning and 928.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 16:08:50,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83ms. Allocated memory is still 115.3MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.90ms. Allocated memory is still 157.3MB. Free memory was 126.6MB in the beginning and 116.9MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.60ms. Allocated memory is still 157.3MB. Free memory was 116.9MB in the beginning and 115.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.13ms. Allocated memory is still 157.3MB. Free memory was 115.4MB in the beginning and 114.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 310.91ms. Allocated memory is still 157.3MB. Free memory was 114.2MB in the beginning and 103.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 459938.56ms. Allocated memory was 157.3MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 102.8MB in the beginning and 930.7MB in the end (delta: -827.9MB). Peak memory consumption was 873.9MB. Max. memory is 16.1GB. * Witness Printer took 46.19ms. Allocated memory is still 1.3GB. Free memory was 930.7MB in the beginning and 928.6MB in the end (delta: 2.1MB). 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 459.8s, OverallIterations: 13, TraceHistogramMax: 132, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 354.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20895 SdHoareTripleChecker+Valid, 30.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20895 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 25.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 10347 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57116 IncrementalHoareTripleChecker+Invalid, 67463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10347 mSolverCounterUnsat, 48 mSDtfsCounter, 57116 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3483 GetRequests, 1775 SyntacticMatches, 129 SemanticMatches, 1579 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300525 ImplicationChecksByTransitivity, 390.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=792occurred in iteration=12, InterpolantAutomatonStates: 964, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 104 NumberOfFragments, 1052 HoareAnnotationTreeSize, 2 FomulaSimplifications, 13328 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 2 FomulaSimplificationsInter, 8873 FormulaSimplificationTreeSizeReductionInter, 6.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 63.6s InterpolantComputationTime, 2372 NumberOfCodeBlocks, 2372 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 3115 ConstructedInterpolants, 0 QuantifiedInterpolants, 18185 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1422 ConjunctsInSsa, 264 ConjunctsInUnsatCore, 25 InterpolantComputations, 7 PerfectInterpolantSequences, 51490/101287 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((c + 2 * i < 2147483647 && 0 <= c) && c + 1596 <= 56 * i) || ((0 <= c && i <= 113) && c + 136 <= 16 * i)) || ((c + 210 <= i * 20 && 0 <= c) && i * 10 + c < 2147483593)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 1378 <= 52 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 1128 <= 47 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 703 <= i * 37)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 666 <= i * 36)) || ((c + 2 * i < 2147483647 && 0 <= c) && 861 + c <= 41 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && 1953 + c <= 62 * i)) || (((c < 2147479228 && 66 <= i) && 0 <= c) && c + i < 2147483647)) || ((0 <= c && i <= 1) && c + 1 <= i)) || ((0 <= c && 66 + c <= i * 11) && i <= 110)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 528 <= 32 * i)) || ((0 <= c && c + 3 * i < 2147483642) && c + 55 <= i * 10)) || ((0 <= c && c + i <= 0) && c <= 6 * i)) || ((2080 + c <= 64 * i && i <= 100) && 0 <= c)) || ((351 + c <= i * 26 && 0 <= c) && 6 * i + c < 2147483633)) || ((c + 2 * i < 2147483647 && c + 780 <= i * 39) && 0 <= c)) || ((0 <= c && c + i < 2147480876) && 67 <= i)) || ((0 <= c && 153 + c <= i * 17) && c + 14 * i < 2147483557)) || ((c + 2 * i < 2147483647 && c + 1770 <= 59 * i) && 0 <= c)) || ((c + 2 * i < 2147483647 && 0 <= c) && 465 + c <= 30 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 1081 <= 46 * i)) || ((i <= 111 && 0 <= c) && 91 + c <= i * 13)) || ((c + 2 * i < 2147483647 && c + 1891 <= i * 61) && 0 <= c)) || ((c + 2 * i < 2147483647 && 0 <= c) && 903 + c <= 42 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && 990 + c <= 44 * i)) || ((0 <= c && 40 + c <= i * 10) && i <= 5)) || ((595 + c <= i * 34 && 0 <= c) && c + 2 * i < 2147481323)) || ((c + 1711 <= i * 58 && c + 2 * i < 2147483647) && 0 <= c)) || ((c + 1431 <= 53 * i && c + 2 * i < 2147483647) && 0 <= c)) || ((0 <= c && c + i * 12 < 2147483570) && 190 + c <= 19 * i)) || ((c + 2 * i < 2147483647 && 3 + c <= 2 * i) && 0 <= c)) || ((0 <= c && i <= 112) && c + 105 <= 14 * i)) || ((253 + c <= 22 * i && 0 <= c) && c + 9 * i < 2147483612)) || ((0 <= c && c + 36 <= i * 8) && i <= 106)) || ((c + 2 * i < 2147483647 && 0 <= c) && 1225 + c <= 49 * i)) || ((0 <= c && i <= 4) && 30 + c <= 9 * i)) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 1540 <= i * 55)) || (((156 + c <= i * 18 && 0 <= c) && 24 <= i) && i * 8 + c < 2147483620)) || ((0 <= c && c + 406 <= i * 28) && c + 3 * i < 2147483645)) || (((0 <= c && c + 175 <= 19 * i) && 25 <= i) && c + 7 * i < 2147483627)) || ((c + 2 * i < 2147483647 && 0 <= c) && 21 + c <= 6 * i)) || (((((((((((((((((((((((((((((((((((87 < i || c + i < 2147482426) && (c + i < 2147481226 || 72 < i)) && c + i <= 2147483647) && (78 < i || c + i < 2147481679)) && (88 < i || c + i < 2147482514)) && (c + i < 2147482784 || 91 < i)) && (73 < i || c + i < 2147481299)) && (c + i < 2147481838 || 80 < i)) && (76 < i || c + i < 2147481524)) && (69 < i || c + i < 2147481013)) && (93 < i || c + i < 2147482969)) && (82 < i || c + i < 2147482001)) && (89 < i || c + i < 2147482603)) && (c + i < 2147481083 || 70 < i)) && 0 <= c) && (74 < i || c + i < 2147481373)) && (81 < i || c + i < 2147481919)) && (c + i < 2147482168 || 84 < i)) && (71 < i || c + i < 2147481154)) && (!(i < 100) || c + 2 * i < 2147483647)) && (c + i < 2147482084 || 83 < i)) && (c + i < 2147483158 || 95 < i)) && (c + i < 2147480944 || 68 < i)) && (c + i < 2147482876 || 92 < i)) && (c + i < 2147481601 || 77 < i)) && (86 < i || c + i < 2147482339)) && (98 < i || c + i < 2147483449)) && (c + i < 2147481448 || 75 < i)) && (c + i < 2147483063 || 94 < i)) && 68 <= i) && (85 < i || c + i < 2147482253)) && (79 < i || c + i < 2147481758)) && (96 < i || c + i < 2147483254)) && (90 < i || c + i < 2147482693)) && (c + i < 2147483351 || 97 < i))) || ((c + 2 * i < 2147483647 && 0 <= c) && c + 1275 <= i * 50) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 16:08:50,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3653c35-17b5-4a4d-8360-dcb27d466b59/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE