./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-007.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-007.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:31:54,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:31:54,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:31:55,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:31:55,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:31:55,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:31:55,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:31:55,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:31:55,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:31:55,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:31:55,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:31:55,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:31:55,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:31:55,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:31:55,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:31:55,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:31:55,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:31:55,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:31:55,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:31:55,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:31:55,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:31:55,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:31:55,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:31:55,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:31:55,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:31:55,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:31:55,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:31:55,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:31:55,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:31:55,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:31:55,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:31:55,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:31:55,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:31:55,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:31:55,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:31:55,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:31:55,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:31:55,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:31:55,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:31:55,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:31:55,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:31:55,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 23:31:55,108 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:31:55,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:31:55,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:31:55,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:31:55,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:31:55,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:31:55,110 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:31:55,110 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:31:55,110 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:31:55,110 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:31:55,110 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:31:55,111 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:31:55,111 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:31:55,111 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:31:55,111 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:31:55,111 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:31:55,112 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:31:55,112 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:31:55,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:31:55,113 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:31:55,113 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:31:55,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:31:55,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:31:55,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:31:55,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:31:55,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:31:55,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:31:55,114 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:31:55,114 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:31:55,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:31:55,115 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:31:55,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:31:55,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:31:55,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:31:55,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:31:55,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:31:55,116 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:31:55,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:31:55,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:31:55,117 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:31:55,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:31:55,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:31:55,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:31:55,117 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_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 [2022-11-25 23:31:55,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:31:55,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:31:55,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:31:55,394 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:31:55,394 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:31:55,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/xcsp/AllInterval-007.c [2022-11-25 23:31:58,601 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:31:58,788 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:31:58,789 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/sv-benchmarks/c/xcsp/AllInterval-007.c [2022-11-25 23:31:58,795 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/data/a0b1de5c1/3ef2a8d2068145af91969cc4b1e247d8/FLAGbdc986c96 [2022-11-25 23:31:58,809 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/data/a0b1de5c1/3ef2a8d2068145af91969cc4b1e247d8 [2022-11-25 23:31:58,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:31:58,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:31:58,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:31:58,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:31:58,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:31:58,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:31:58" (1/1) ... [2022-11-25 23:31:58,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1145e98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:58, skipping insertion in model container [2022-11-25 23:31:58,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:31:58" (1/1) ... [2022-11-25 23:31:58,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:31:58,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:31:59,032 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_251eb779-7277-4b8b-b078-cc37af8f2d6e/sv-benchmarks/c/xcsp/AllInterval-007.c[3690,3703] [2022-11-25 23:31:59,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:31:59,044 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:31:59,075 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_251eb779-7277-4b8b-b078-cc37af8f2d6e/sv-benchmarks/c/xcsp/AllInterval-007.c[3690,3703] [2022-11-25 23:31:59,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:31:59,089 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:31:59,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59 WrapperNode [2022-11-25 23:31:59,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:31:59,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:31:59,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:31:59,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:31:59,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (1/1) ... [2022-11-25 23:31:59,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (1/1) ... [2022-11-25 23:31:59,135 INFO L138 Inliner]: procedures = 13, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 198 [2022-11-25 23:31:59,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:31:59,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:31:59,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:31:59,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:31:59,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (1/1) ... [2022-11-25 23:31:59,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (1/1) ... [2022-11-25 23:31:59,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (1/1) ... [2022-11-25 23:31:59,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (1/1) ... [2022-11-25 23:31:59,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (1/1) ... [2022-11-25 23:31:59,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (1/1) ... [2022-11-25 23:31:59,158 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (1/1) ... [2022-11-25 23:31:59,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (1/1) ... [2022-11-25 23:31:59,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:31:59,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:31:59,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:31:59,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:31:59,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (1/1) ... [2022-11-25 23:31:59,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:31:59,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:31:59,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:31:59,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:31:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:31:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:31:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:31:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:31:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-25 23:31:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-25 23:31:59,320 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:31:59,322 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:31:59,706 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:31:59,761 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:31:59,762 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:31:59,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:31:59 BoogieIcfgContainer [2022-11-25 23:31:59,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:31:59,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:31:59,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:31:59,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:31:59,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:31:58" (1/3) ... [2022-11-25 23:31:59,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1188895e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:31:59, skipping insertion in model container [2022-11-25 23:31:59,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:59" (2/3) ... [2022-11-25 23:31:59,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1188895e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:31:59, skipping insertion in model container [2022-11-25 23:31:59,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:31:59" (3/3) ... [2022-11-25 23:31:59,786 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-007.c [2022-11-25 23:31:59,810 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:31:59,810 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-25 23:31:59,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:31:59,899 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;@7890a4d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:31:59,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-25 23:31:59,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 53 states have (on average 1.5660377358490567) internal successors, (83), 77 states have internal predecessors, (83), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-25 23:31:59,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-25 23:31:59,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:59,925 INFO L195 NwaCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:31:59,926 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 23:31:59,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:59,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1471271386, now seen corresponding path program 1 times [2022-11-25 23:31:59,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:59,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247991869] [2022-11-25 23:31:59,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:59,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:32:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:32:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-25 23:32:01,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:32:01,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247991869] [2022-11-25 23:32:01,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247991869] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:32:01,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119439805] [2022-11-25 23:32:01,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:01,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:32:01,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:32:01,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:32:01,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:32:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:32:01,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 23:32:01,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:32:02,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-25 23:32:02,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:32:02,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-25 23:32:02,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119439805] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:32:02,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1123700412] [2022-11-25 23:32:02,595 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2022-11-25 23:32:02,595 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:32:02,599 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:32:02,605 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:32:02,606 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:32:20,501 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-25 23:32:20,527 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:33:15,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1123700412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:33:15,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:33:15,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [4, 4, 4] total 85 [2022-11-25 23:33:15,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253322637] [2022-11-25 23:33:15,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:33:15,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-11-25 23:33:15,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:33:15,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-11-25 23:33:15,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3472, Invalid=3838, Unknown=0, NotChecked=0, Total=7310 [2022-11-25 23:33:15,740 INFO L87 Difference]: Start difference. First operand has 147 states, 53 states have (on average 1.5660377358490567) internal successors, (83), 77 states have internal predecessors, (83), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 80 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-25 23:33:17,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:33:17,971 INFO L93 Difference]: Finished difference Result 147 states and 219 transitions. [2022-11-25 23:33:17,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-25 23:33:17,974 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 202 [2022-11-25 23:33:17,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:33:17,985 INFO L225 Difference]: With dead ends: 147 [2022-11-25 23:33:17,986 INFO L226 Difference]: Without dead ends: 131 [2022-11-25 23:33:17,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 523 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 55.2s TimeCoverageRelationStatistics Valid=3472, Invalid=3838, Unknown=0, NotChecked=0, Total=7310 [2022-11-25 23:33:17,994 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 378 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:33:17,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 180 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:33:18,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-25 23:33:18,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-11-25 23:33:18,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 62 states have internal predecessors, (67), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-25 23:33:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 201 transitions. [2022-11-25 23:33:18,133 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 201 transitions. Word has length 202 [2022-11-25 23:33:18,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:33:18,136 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 201 transitions. [2022-11-25 23:33:18,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-25 23:33:18,137 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 201 transitions. [2022-11-25 23:33:18,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-25 23:33:18,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:33:18,143 INFO L195 NwaCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:33:18,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 23:33:18,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 23:33:18,350 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 23:33:18,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:33:18,351 INFO L85 PathProgramCache]: Analyzing trace with hash 504716024, now seen corresponding path program 1 times [2022-11-25 23:33:18,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:33:18,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789333965] [2022-11-25 23:33:18,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:33:18,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:33:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:33:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2022-11-25 23:33:18,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:33:18,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789333965] [2022-11-25 23:33:18,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789333965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:33:18,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:33:18,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:33:18,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503196413] [2022-11-25 23:33:18,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:33:18,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:33:18,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:33:18,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:33:18,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:33:18,498 INFO L87 Difference]: Start difference. First operand 131 states and 201 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-11-25 23:33:18,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:33:18,654 INFO L93 Difference]: Finished difference Result 136 states and 206 transitions. [2022-11-25 23:33:18,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:33:18,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) Word has length 205 [2022-11-25 23:33:18,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:33:18,658 INFO L225 Difference]: With dead ends: 136 [2022-11-25 23:33:18,658 INFO L226 Difference]: Without dead ends: 130 [2022-11-25 23:33:18,659 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 [2022-11-25 23:33:18,660 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 17 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:33:18,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 329 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:33:18,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-25 23:33:18,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 125. [2022-11-25 23:33:18,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 51 states have (on average 1.196078431372549) internal successors, (61), 56 states have internal predecessors, (61), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-25 23:33:18,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 195 transitions. [2022-11-25 23:33:18,781 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 195 transitions. Word has length 205 [2022-11-25 23:33:18,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:33:18,785 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 195 transitions. [2022-11-25 23:33:18,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-11-25 23:33:18,785 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 195 transitions. [2022-11-25 23:33:18,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-25 23:33:18,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:33:18,789 INFO L195 NwaCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:33:18,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:33:18,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 23:33:18,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:33:18,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1533672319, now seen corresponding path program 1 times [2022-11-25 23:33:18,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:33:18,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900062425] [2022-11-25 23:33:18,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:33:18,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:33:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:33:19,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-25 23:33:19,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:33:19,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900062425] [2022-11-25 23:33:19,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900062425] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:33:19,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759334665] [2022-11-25 23:33:19,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:33:19,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:33:19,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:33:19,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:33:19,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:33:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:33:19,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 23:33:19,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:33:19,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-25 23:33:19,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:33:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-25 23:33:19,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759334665] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:33:19,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1463129881] [2022-11-25 23:33:20,005 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-11-25 23:33:20,005 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:33:20,006 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:33:20,006 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:33:20,006 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:33:34,529 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-25 23:33:34,544 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:34:33,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1463129881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:34:33,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:34:33,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [5, 5, 5] total 86 [2022-11-25 23:34:33,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905009369] [2022-11-25 23:34:33,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:34:33,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-11-25 23:34:33,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:34:33,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-11-25 23:34:33,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3485, Invalid=3997, Unknown=0, NotChecked=0, Total=7482 [2022-11-25 23:34:33,773 INFO L87 Difference]: Start difference. First operand 125 states and 195 transitions. Second operand has 82 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-25 23:34:35,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:34:35,932 INFO L93 Difference]: Finished difference Result 126 states and 196 transitions. [2022-11-25 23:34:35,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-25 23:34:35,933 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 206 [2022-11-25 23:34:35,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:34:35,935 INFO L225 Difference]: With dead ends: 126 [2022-11-25 23:34:35,936 INFO L226 Difference]: Without dead ends: 125 [2022-11-25 23:34:35,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 531 SyntacticMatches, 5 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 59.2s TimeCoverageRelationStatistics Valid=3485, Invalid=3997, Unknown=0, NotChecked=0, Total=7482 [2022-11-25 23:34:35,939 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 323 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:34:35,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 153 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:34:35,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-25 23:34:36,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 124. [2022-11-25 23:34:36,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 55 states have internal predecessors, (60), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-25 23:34:36,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 194 transitions. [2022-11-25 23:34:36,024 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 194 transitions. Word has length 206 [2022-11-25 23:34:36,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:34:36,025 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 194 transitions. [2022-11-25 23:34:36,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-25 23:34:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 194 transitions. [2022-11-25 23:34:36,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-25 23:34:36,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:34:36,032 INFO L195 NwaCegarLoop]: trace histogram [63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:34:36,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:34:36,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:34:36,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 23:34:36,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:34:36,239 INFO L85 PathProgramCache]: Analyzing trace with hash -91060162, now seen corresponding path program 1 times [2022-11-25 23:34:36,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:34:36,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430676110] [2022-11-25 23:34:36,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:34:36,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:34:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:34:36,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 6 proven. 116 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2022-11-25 23:34:36,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:34:36,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430676110] [2022-11-25 23:34:36,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430676110] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:34:36,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803012250] [2022-11-25 23:34:36,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:34:36,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:34:36,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:34:36,643 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:34:36,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:34:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:34:36,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 23:34:36,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:34:37,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-11-25 23:34:37,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:34:37,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-11-25 23:34:37,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803012250] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:34:37,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [325119394] [2022-11-25 23:34:37,527 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-11-25 23:34:37,528 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:34:37,530 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:34:37,530 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:34:37,530 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:34:52,109 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-25 23:34:52,111 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:36:00,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [325119394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:00,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:36:00,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [5, 5, 5] total 92 [2022-11-25 23:36:00,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047292039] [2022-11-25 23:36:00,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:00,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-11-25 23:36:00,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:00,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-11-25 23:36:00,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3899, Invalid=4657, Unknown=0, NotChecked=0, Total=8556 [2022-11-25 23:36:00,093 INFO L87 Difference]: Start difference. First operand 124 states and 194 transitions. Second operand has 86 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-25 23:36:03,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:03,079 INFO L93 Difference]: Finished difference Result 134 states and 206 transitions. [2022-11-25 23:36:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-11-25 23:36:03,079 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 213 [2022-11-25 23:36:03,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:03,081 INFO L225 Difference]: With dead ends: 134 [2022-11-25 23:36:03,082 INFO L226 Difference]: Without dead ends: 133 [2022-11-25 23:36:03,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 547 SyntacticMatches, 5 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 68.0s TimeCoverageRelationStatistics Valid=3899, Invalid=4657, Unknown=0, NotChecked=0, Total=8556 [2022-11-25 23:36:03,085 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 170 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:03,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 153 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 23:36:03,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-25 23:36:03,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2022-11-25 23:36:03,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 61 states have internal predecessors, (67), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-25 23:36:03,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 203 transitions. [2022-11-25 23:36:03,164 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 203 transitions. Word has length 213 [2022-11-25 23:36:03,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:03,165 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 203 transitions. [2022-11-25 23:36:03,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-25 23:36:03,165 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 203 transitions. [2022-11-25 23:36:03,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-25 23:36:03,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:03,169 INFO L195 NwaCegarLoop]: trace histogram [63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:03,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:36:03,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:36:03,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 23:36:03,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:03,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1199480218, now seen corresponding path program 1 times [2022-11-25 23:36:03,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:03,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092655597] [2022-11-25 23:36:03,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:03,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:03,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-11-25 23:36:03,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:03,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092655597] [2022-11-25 23:36:03,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092655597] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:36:03,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615445] [2022-11-25 23:36:03,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:03,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:36:03,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:36:03,687 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:36:03,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:36:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:03,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 23:36:03,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:36:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-11-25 23:36:04,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:36:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-11-25 23:36:04,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615445] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:36:04,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1494588569] [2022-11-25 23:36:04,490 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2022-11-25 23:36:04,490 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:36:04,491 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:36:04,491 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:36:04,491 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:36:18,708 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-25 23:36:18,709 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:37:27,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1494588569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:37:27,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:37:27,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [85] imperfect sequences [5, 5, 5] total 91 [2022-11-25 23:37:27,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232526276] [2022-11-25 23:37:27,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:37:27,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-11-25 23:37:27,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:37:27,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-11-25 23:37:27,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3895, Invalid=4477, Unknown=0, NotChecked=0, Total=8372 [2022-11-25 23:37:27,415 INFO L87 Difference]: Start difference. First operand 131 states and 203 transitions. Second operand has 87 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-25 23:37:30,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:37:30,420 INFO L93 Difference]: Finished difference Result 133 states and 205 transitions. [2022-11-25 23:37:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-11-25 23:37:30,421 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 215 [2022-11-25 23:37:30,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:37:30,423 INFO L225 Difference]: With dead ends: 133 [2022-11-25 23:37:30,423 INFO L226 Difference]: Without dead ends: 132 [2022-11-25 23:37:30,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 551 SyntacticMatches, 7 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 68.7s TimeCoverageRelationStatistics Valid=3895, Invalid=4477, Unknown=0, NotChecked=0, Total=8372 [2022-11-25 23:37:30,426 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 243 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:37:30,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 144 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 23:37:30,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-25 23:37:30,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 123. [2022-11-25 23:37:30,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 54 states have internal predecessors, (59), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-25 23:37:30,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 193 transitions. [2022-11-25 23:37:30,490 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 193 transitions. Word has length 215 [2022-11-25 23:37:30,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:37:30,491 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 193 transitions. [2022-11-25 23:37:30,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-25 23:37:30,491 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 193 transitions. [2022-11-25 23:37:30,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-25 23:37:30,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:30,493 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:37:30,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:37:30,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:37:30,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 23:37:30,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:30,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1917648637, now seen corresponding path program 1 times [2022-11-25 23:37:30,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:37:30,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710851004] [2022-11-25 23:37:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:37:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 10 proven. 114 refuted. 0 times theorem prover too weak. 3908 trivial. 0 not checked. [2022-11-25 23:37:31,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:37:31,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710851004] [2022-11-25 23:37:31,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710851004] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:37:31,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396288385] [2022-11-25 23:37:31,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:31,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:37:31,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:37:31,120 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:37:31,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:37:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:31,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 23:37:31,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:37:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-25 23:37:31,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:37:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-25 23:37:31,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396288385] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:37:31,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1319996926] [2022-11-25 23:37:31,931 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2022-11-25 23:37:31,932 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:37:31,932 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:37:31,932 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:37:31,933 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:37:46,436 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-25 23:37:46,447 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:39:02,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1319996926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:39:02,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:39:02,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [5, 5, 5] total 96 [2022-11-25 23:39:02,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871084580] [2022-11-25 23:39:02,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:39:02,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-11-25 23:39:02,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:39:02,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-11-25 23:39:02,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4232, Invalid=5080, Unknown=0, NotChecked=0, Total=9312 [2022-11-25 23:39:02,078 INFO L87 Difference]: Start difference. First operand 123 states and 193 transitions. Second operand has 90 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-25 23:39:06,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:39:06,140 INFO L93 Difference]: Finished difference Result 141 states and 215 transitions. [2022-11-25 23:39:06,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-11-25 23:39:06,141 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 220 [2022-11-25 23:39:06,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:39:06,142 INFO L225 Difference]: With dead ends: 141 [2022-11-25 23:39:06,143 INFO L226 Difference]: Without dead ends: 140 [2022-11-25 23:39:06,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 563 SyntacticMatches, 6 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 75.6s TimeCoverageRelationStatistics Valid=4232, Invalid=5080, Unknown=0, NotChecked=0, Total=9312 [2022-11-25 23:39:06,145 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 309 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:39:06,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 141 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 23:39:06,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-25 23:39:06,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 135. [2022-11-25 23:39:06,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 64 states have internal predecessors, (71), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-25 23:39:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 209 transitions. [2022-11-25 23:39:06,204 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 209 transitions. Word has length 220 [2022-11-25 23:39:06,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:39:06,205 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 209 transitions. [2022-11-25 23:39:06,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-25 23:39:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 209 transitions. [2022-11-25 23:39:06,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-25 23:39:06,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:39:06,208 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:39:06,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-25 23:39:06,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:39:06,414 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 23:39:06,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:39:06,414 INFO L85 PathProgramCache]: Analyzing trace with hash -193333863, now seen corresponding path program 1 times [2022-11-25 23:39:06,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:39:06,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031873888] [2022-11-25 23:39:06,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:39:06,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:39:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:39:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-25 23:39:06,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:39:06,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031873888] [2022-11-25 23:39:06,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031873888] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:39:06,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409660912] [2022-11-25 23:39:06,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:39:06,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:39:06,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:39:06,784 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:39:06,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 23:39:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:39:06,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 23:39:06,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:39:07,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-25 23:39:07,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:39:07,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-25 23:39:07,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409660912] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:39:07,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1959017246] [2022-11-25 23:39:07,601 INFO L159 IcfgInterpreter]: Started Sifa with 97 locations of interest [2022-11-25 23:39:07,601 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:39:07,602 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:39:07,602 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:39:07,602 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:39:22,211 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-25 23:39:22,223 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:40:43,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1959017246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:40:43,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:40:43,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [7, 5, 5] total 100 [2022-11-25 23:40:43,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3737312] [2022-11-25 23:40:43,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:40:43,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-11-25 23:40:43,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:40:43,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-11-25 23:40:43,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4495, Invalid=5605, Unknown=0, NotChecked=0, Total=10100 [2022-11-25 23:40:43,076 INFO L87 Difference]: Start difference. First operand 135 states and 209 transitions. Second operand has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-25 23:40:47,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:40:47,669 INFO L93 Difference]: Finished difference Result 147 states and 223 transitions. [2022-11-25 23:40:47,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-11-25 23:40:47,670 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 222 [2022-11-25 23:40:47,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:40:47,672 INFO L225 Difference]: With dead ends: 147 [2022-11-25 23:40:47,672 INFO L226 Difference]: Without dead ends: 146 [2022-11-25 23:40:47,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 565 SyntacticMatches, 7 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 80.9s TimeCoverageRelationStatistics Valid=4495, Invalid=5605, Unknown=0, NotChecked=0, Total=10100 [2022-11-25 23:40:47,674 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 166 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:40:47,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 154 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 23:40:47,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-25 23:40:47,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137. [2022-11-25 23:40:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 66 states have internal predecessors, (73), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-25 23:40:47,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 211 transitions. [2022-11-25 23:40:47,738 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 211 transitions. Word has length 222 [2022-11-25 23:40:47,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:40:47,739 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 211 transitions. [2022-11-25 23:40:47,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-25 23:40:47,740 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 211 transitions. [2022-11-25 23:40:47,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-25 23:40:47,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:40:47,741 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:40:47,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 23:40:47,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:40:47,947 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 23:40:47,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:40:47,948 INFO L85 PathProgramCache]: Analyzing trace with hash -780441055, now seen corresponding path program 1 times [2022-11-25 23:40:47,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:40:47,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881420493] [2022-11-25 23:40:47,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:40:47,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:40:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:40:48,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-25 23:40:48,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:40:48,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881420493] [2022-11-25 23:40:48,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881420493] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:40:48,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78382090] [2022-11-25 23:40:48,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:40:48,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:40:48,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:40:48,268 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:40:48,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 23:40:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:40:48,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 23:40:48,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:40:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-25 23:40:48,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:40:49,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-25 23:40:49,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78382090] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:40:49,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1298845970] [2022-11-25 23:40:49,070 INFO L159 IcfgInterpreter]: Started Sifa with 97 locations of interest [2022-11-25 23:40:49,071 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:40:49,071 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:40:49,071 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:40:49,071 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:41:03,466 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-25 23:41:03,478 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:42:24,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1298845970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:42:24,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:42:24,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [5, 5, 5] total 96 [2022-11-25 23:42:24,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24217850] [2022-11-25 23:42:24,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:42:24,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-11-25 23:42:24,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:42:24,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-11-25 23:42:24,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4306, Invalid=5006, Unknown=0, NotChecked=0, Total=9312 [2022-11-25 23:42:24,251 INFO L87 Difference]: Start difference. First operand 137 states and 211 transitions. Second operand has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-25 23:42:28,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:42:28,533 INFO L93 Difference]: Finished difference Result 147 states and 223 transitions. [2022-11-25 23:42:28,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-11-25 23:42:28,534 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 222 [2022-11-25 23:42:28,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:42:28,536 INFO L225 Difference]: With dead ends: 147 [2022-11-25 23:42:28,536 INFO L226 Difference]: Without dead ends: 146 [2022-11-25 23:42:28,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 567 SyntacticMatches, 7 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 80.7s TimeCoverageRelationStatistics Valid=4306, Invalid=5006, Unknown=0, NotChecked=0, Total=9312 [2022-11-25 23:42:28,538 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 159 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:42:28,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 155 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 23:42:28,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-25 23:42:28,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137. [2022-11-25 23:42:28,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 66 states have internal predecessors, (73), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-25 23:42:28,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 211 transitions. [2022-11-25 23:42:28,625 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 211 transitions. Word has length 222 [2022-11-25 23:42:28,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:42:28,626 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 211 transitions. [2022-11-25 23:42:28,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-25 23:42:28,626 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 211 transitions. [2022-11-25 23:42:28,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-25 23:42:28,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:42:28,628 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:42:28,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 23:42:28,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:42:28,845 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 23:42:28,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:42:28,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1102718909, now seen corresponding path program 1 times [2022-11-25 23:42:28,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:42:28,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329842191] [2022-11-25 23:42:28,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:42:28,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:42:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:42:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-25 23:42:29,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:42:29,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329842191] [2022-11-25 23:42:29,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329842191] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:42:29,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704411612] [2022-11-25 23:42:29,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:42:29,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:42:29,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:42:29,147 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:42:29,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 23:42:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:42:29,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 23:42:29,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:42:29,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-25 23:42:29,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:42:30,118 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-25 23:42:30,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704411612] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:42:30,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1185209713] [2022-11-25 23:42:30,127 INFO L159 IcfgInterpreter]: Started Sifa with 99 locations of interest [2022-11-25 23:42:30,127 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:42:30,128 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:42:30,128 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:42:30,128 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:42:44,773 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-25 23:42:44,787 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:44:12,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1185209713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:44:12,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:44:12,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [90] imperfect sequences [5, 9, 9] total 107 [2022-11-25 23:44:12,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294270632] [2022-11-25 23:44:12,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:44:12,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-11-25 23:44:12,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:44:12,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-11-25 23:44:12,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4872, Invalid=6684, Unknown=0, NotChecked=0, Total=11556 [2022-11-25 23:44:12,462 INFO L87 Difference]: Start difference. First operand 137 states and 211 transitions. Second operand has 92 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 29 states have internal predecessors, (33), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-25 23:44:16,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:44:16,115 INFO L93 Difference]: Finished difference Result 140 states and 214 transitions. [2022-11-25 23:44:16,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-11-25 23:44:16,116 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 29 states have internal predecessors, (33), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 224 [2022-11-25 23:44:16,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:44:16,118 INFO L225 Difference]: With dead ends: 140 [2022-11-25 23:44:16,118 INFO L226 Difference]: Without dead ends: 139 [2022-11-25 23:44:16,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 561 SyntacticMatches, 8 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1321 ImplicationChecksByTransitivity, 87.8s TimeCoverageRelationStatistics Valid=4872, Invalid=6684, Unknown=0, NotChecked=0, Total=11556 [2022-11-25 23:44:16,120 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 212 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:44:16,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 135 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 23:44:16,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-25 23:44:16,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 122. [2022-11-25 23:44:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 53 states have internal predecessors, (58), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-25 23:44:16,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 192 transitions. [2022-11-25 23:44:16,173 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 192 transitions. Word has length 224 [2022-11-25 23:44:16,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:44:16,174 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 192 transitions. [2022-11-25 23:44:16,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 29 states have internal predecessors, (33), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-25 23:44:16,175 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 192 transitions. [2022-11-25 23:44:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-25 23:44:16,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:44:16,176 INFO L195 NwaCegarLoop]: trace histogram [65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:44:16,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 23:44:16,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-25 23:44:16,383 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-25 23:44:16,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:44:16,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1459911802, now seen corresponding path program 1 times [2022-11-25 23:44:16,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:44:16,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349785518] [2022-11-25 23:44:16,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:44:16,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:44:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:44:16,662 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-11-25 23:44:16,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:44:16,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349785518] [2022-11-25 23:44:16,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349785518] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:44:16,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330122240] [2022-11-25 23:44:16,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:44:16,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:44:16,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:44:16,665 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:44:16,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251eb779-7277-4b8b-b078-cc37af8f2d6e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 23:44:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:44:16,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 23:44:16,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:44:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-11-25 23:44:17,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:44:17,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-11-25 23:44:17,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330122240] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:44:17,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1769661083] [2022-11-25 23:44:17,494 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2022-11-25 23:44:17,494 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:44:17,495 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:44:17,495 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:44:17,495 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:44:32,809 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-25 23:44:32,811 INFO L180 IcfgInterpreter]: Interpretation finished