./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-009.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-009.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 467fcaafa9af0a00772f5009c99943c6cb7078cb0bca94a00a243b41a6183129 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:37:35,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:37:35,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:37:35,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:37:35,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:37:35,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:37:35,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:37:35,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:37:35,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:37:35,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:37:35,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:37:35,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:37:35,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:37:35,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:37:35,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:37:35,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:37:35,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:37:35,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:37:35,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:37:35,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:37:35,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:37:35,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:37:35,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:37:35,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:37:35,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:37:35,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:37:35,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:37:35,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:37:35,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:37:35,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:37:35,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:37:35,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:37:35,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:37:35,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:37:35,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:37:35,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:37:35,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:37:35,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:37:35,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:37:35,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:37:35,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:37:35,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 14:37:35,913 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:37:35,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:37:35,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:37:35,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:37:35,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:37:35,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:37:35,916 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:37:35,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:37:35,916 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:37:35,916 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:37:35,917 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:37:35,917 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:37:35,917 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:37:35,917 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:37:35,918 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:37:35,918 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:37:35,918 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:37:35,918 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:37:35,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:37:35,920 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:37:35,920 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:37:35,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:37:35,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:37:35,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:37:35,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:37:35,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:37:35,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:37:35,922 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:37:35,922 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:37:35,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:37:35,922 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:37:35,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:37:35,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:37:35,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:37:35,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:37:35,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:37:35,924 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:37:35,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:37:35,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:37:35,924 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:37:35,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:37:35,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:37:35,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:37:35,925 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_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 467fcaafa9af0a00772f5009c99943c6cb7078cb0bca94a00a243b41a6183129 [2022-11-23 14:37:36,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:37:36,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:37:36,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:37:36,210 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:37:36,210 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:37:36,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/xcsp/AllInterval-009.c [2022-11-23 14:37:39,240 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:37:39,548 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:37:39,549 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/sv-benchmarks/c/xcsp/AllInterval-009.c [2022-11-23 14:37:39,560 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/data/0a7bac17b/22ea89be08c64228a10481591ac94f2b/FLAGbc73c6ca9 [2022-11-23 14:37:39,575 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/data/0a7bac17b/22ea89be08c64228a10481591ac94f2b [2022-11-23 14:37:39,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:37:39,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:37:39,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:37:39,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:37:39,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:37:39,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:39,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65bcaada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39, skipping insertion in model container [2022-11-23 14:37:39,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:39,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:37:39,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:37:39,863 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_4d7227b4-3af9-4f22-847f-e7db17d435f2/sv-benchmarks/c/xcsp/AllInterval-009.c[5030,5043] [2022-11-23 14:37:39,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:37:39,875 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:37:39,915 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_4d7227b4-3af9-4f22-847f-e7db17d435f2/sv-benchmarks/c/xcsp/AllInterval-009.c[5030,5043] [2022-11-23 14:37:39,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:37:39,930 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:37:39,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39 WrapperNode [2022-11-23 14:37:39,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:37:39,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:37:39,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:37:39,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:37:39,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:39,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:39,980 INFO L138 Inliner]: procedures = 13, calls = 113, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 272 [2022-11-23 14:37:39,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:37:39,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:37:39,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:37:39,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:37:39,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:39,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:39,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:39,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:40,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:40,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:40,005 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:40,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:40,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:37:40,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:37:40,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:37:40,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:37:40,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (1/1) ... [2022-11-23 14:37:40,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:37:40,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:37:40,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:37:40,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:37:40,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:37:40,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:37:40,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:37:40,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:37:40,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-23 14:37:40,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-23 14:37:40,194 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:37:40,197 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:37:40,642 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:37:40,670 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:37:40,670 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:37:40,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:37:40 BoogieIcfgContainer [2022-11-23 14:37:40,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:37:40,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:37:40,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:37:40,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:37:40,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:37:39" (1/3) ... [2022-11-23 14:37:40,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a336752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:37:40, skipping insertion in model container [2022-11-23 14:37:40,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:39" (2/3) ... [2022-11-23 14:37:40,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a336752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:37:40, skipping insertion in model container [2022-11-23 14:37:40,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:37:40" (3/3) ... [2022-11-23 14:37:40,700 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-009.c [2022-11-23 14:37:40,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:37:40,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-23 14:37:40,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:37:40,797 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;@daf2e8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:37:40,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-11-23 14:37:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 69 states have (on average 1.5797101449275361) internal successors, (109), 101 states have internal predecessors, (109), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2022-11-23 14:37:40,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-23 14:37:40,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:40,834 INFO L195 NwaCegarLoop]: trace histogram [98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:40,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-23 14:37:40,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:40,841 INFO L85 PathProgramCache]: Analyzing trace with hash -954106397, now seen corresponding path program 1 times [2022-11-23 14:37:40,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:40,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936294468] [2022-11-23 14:37:40,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:40,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:42,514 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-23 14:37:42,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:42,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936294468] [2022-11-23 14:37:42,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936294468] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:37:42,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102383394] [2022-11-23 14:37:42,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:42,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:37:42,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:37:42,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:37:42,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:37:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:42,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 14:37:42,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:37:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-23 14:37:43,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:37:44,126 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-23 14:37:44,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102383394] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:37:44,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [89759293] [2022-11-23 14:37:44,157 INFO L159 IcfgInterpreter]: Started Sifa with 121 locations of interest [2022-11-23 14:37:44,157 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:37:44,162 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:37:44,167 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:37:44,168 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:38:22,536 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-23 14:38:22,557 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:41:00,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [89759293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:41:00,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:41:00,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [118] imperfect sequences [4, 4, 4] total 125 [2022-11-23 14:41:00,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097928100] [2022-11-23 14:41:00,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:41:00,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-11-23 14:41:00,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:41:00,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-11-23 14:41:00,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7612, Invalid=8138, Unknown=0, NotChecked=0, Total=15750 [2022-11-23 14:41:00,842 INFO L87 Difference]: Start difference. First operand has 209 states, 69 states have (on average 1.5797101449275361) internal successors, (109), 101 states have internal predecessors, (109), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 120 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-23 14:41:06,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:41:06,412 INFO L93 Difference]: Finished difference Result 209 states and 321 transitions. [2022-11-23 14:41:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-23 14:41:06,415 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Word has length 314 [2022-11-23 14:41:06,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:41:06,430 INFO L225 Difference]: With dead ends: 209 [2022-11-23 14:41:06,430 INFO L226 Difference]: Without dead ends: 189 [2022-11-23 14:41:06,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 944 GetRequests, 819 SyntacticMatches, 1 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 158.2s TimeCoverageRelationStatistics Valid=7612, Invalid=8138, Unknown=0, NotChecked=0, Total=15750 [2022-11-23 14:41:06,440 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 419 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:41:06,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 254 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 14:41:06,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-23 14:41:06,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2022-11-23 14:41:06,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 67 states have (on average 1.328358208955224) internal successors, (89), 82 states have internal predecessors, (89), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-23 14:41:06,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 299 transitions. [2022-11-23 14:41:06,756 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 299 transitions. Word has length 314 [2022-11-23 14:41:06,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:41:06,761 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 299 transitions. [2022-11-23 14:41:06,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-23 14:41:06,763 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 299 transitions. [2022-11-23 14:41:06,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-23 14:41:06,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:41:06,778 INFO L195 NwaCegarLoop]: trace histogram [98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:41:06,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 14:41:06,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 14:41:06,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-23 14:41:06,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:41:06,987 INFO L85 PathProgramCache]: Analyzing trace with hash 310042999, now seen corresponding path program 1 times [2022-11-23 14:41:06,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:41:06,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721562466] [2022-11-23 14:41:06,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:41:06,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:41:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:41:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-11-23 14:41:07,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:41:07,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721562466] [2022-11-23 14:41:07,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721562466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:41:07,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:41:07,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:41:07,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621081090] [2022-11-23 14:41:07,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:41:07,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:41:07,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:41:07,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:41:07,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:41:07,248 INFO L87 Difference]: Start difference. First operand 189 states and 299 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2022-11-23 14:41:07,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:41:07,534 INFO L93 Difference]: Finished difference Result 196 states and 306 transitions. [2022-11-23 14:41:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:41:07,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 317 [2022-11-23 14:41:07,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:41:07,548 INFO L225 Difference]: With dead ends: 196 [2022-11-23 14:41:07,548 INFO L226 Difference]: Without dead ends: 188 [2022-11-23 14:41:07,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:41:07,550 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 23 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:41:07,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 501 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:41:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-23 14:41:07,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 181. [2022-11-23 14:41:07,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 67 states have (on average 1.208955223880597) internal successors, (81), 74 states have internal predecessors, (81), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-23 14:41:07,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 291 transitions. [2022-11-23 14:41:07,781 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 291 transitions. Word has length 317 [2022-11-23 14:41:07,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:41:07,782 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 291 transitions. [2022-11-23 14:41:07,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2022-11-23 14:41:07,783 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 291 transitions. [2022-11-23 14:41:07,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-23 14:41:07,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:41:07,793 INFO L195 NwaCegarLoop]: trace histogram [98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:41:07,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:41:07,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-23 14:41:07,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:41:07,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1021398538, now seen corresponding path program 1 times [2022-11-23 14:41:07,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:41:07,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330246476] [2022-11-23 14:41:07,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:41:07,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:41:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:41:08,335 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-23 14:41:08,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:41:08,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330246476] [2022-11-23 14:41:08,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330246476] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:41:08,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025375737] [2022-11-23 14:41:08,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:41:08,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:41:08,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:41:08,338 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:41:08,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:41:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:41:08,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 14:41:08,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:41:09,027 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-23 14:41:09,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:41:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-23 14:41:09,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025375737] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:41:09,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2113429299] [2022-11-23 14:41:09,591 INFO L159 IcfgInterpreter]: Started Sifa with 125 locations of interest [2022-11-23 14:41:09,591 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:41:09,591 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:41:09,592 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:41:09,592 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:41:46,290 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-23 14:41:46,302 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:44:42,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2113429299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:42,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:44:42,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [120] imperfect sequences [5, 5, 5] total 126 [2022-11-23 14:44:42,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241699651] [2022-11-23 14:44:42,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:42,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2022-11-23 14:44:42,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:42,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2022-11-23 14:44:42,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7625, Invalid=8377, Unknown=0, NotChecked=0, Total=16002 [2022-11-23 14:44:42,803 INFO L87 Difference]: Start difference. First operand 181 states and 291 transitions. Second operand has 122 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-23 14:44:49,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:49,361 INFO L93 Difference]: Finished difference Result 182 states and 292 transitions. [2022-11-23 14:44:49,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-11-23 14:44:49,362 INFO L78 Accepts]: Start accepts. Automaton has has 122 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Word has length 318 [2022-11-23 14:44:49,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:49,365 INFO L225 Difference]: With dead ends: 182 [2022-11-23 14:44:49,365 INFO L226 Difference]: Without dead ends: 181 [2022-11-23 14:44:49,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 957 GetRequests, 827 SyntacticMatches, 5 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 176.4s TimeCoverageRelationStatistics Valid=7625, Invalid=8377, Unknown=0, NotChecked=0, Total=16002 [2022-11-23 14:44:49,370 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 259 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:49,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 223 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-23 14:44:49,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-23 14:44:49,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 180. [2022-11-23 14:44:49,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 73 states have internal predecessors, (80), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-23 14:44:49,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 290 transitions. [2022-11-23 14:44:49,559 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 290 transitions. Word has length 318 [2022-11-23 14:44:49,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:49,560 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 290 transitions. [2022-11-23 14:44:49,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 122 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-23 14:44:49,561 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 290 transitions. [2022-11-23 14:44:49,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-23 14:44:49,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:49,567 INFO L195 NwaCegarLoop]: trace histogram [99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:49,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 14:44:49,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:49,775 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-23 14:44:49,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:49,775 INFO L85 PathProgramCache]: Analyzing trace with hash 365489753, now seen corresponding path program 1 times [2022-11-23 14:44:49,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:49,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857074471] [2022-11-23 14:44:49,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:49,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:50,989 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 116 proven. 264 refuted. 0 times theorem prover too weak. 9322 trivial. 0 not checked. [2022-11-23 14:44:50,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:50,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857074471] [2022-11-23 14:44:50,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857074471] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:44:50,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384465815] [2022-11-23 14:44:50,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:50,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:50,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:50,992 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:44:51,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:44:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:51,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 14:44:51,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:51,778 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-23 14:44:51,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:44:52,373 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-23 14:44:52,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384465815] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:44:52,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1258909706] [2022-11-23 14:44:52,378 INFO L159 IcfgInterpreter]: Started Sifa with 130 locations of interest [2022-11-23 14:44:52,378 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:44:52,378 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:44:52,379 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:44:52,379 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:45:30,089 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-23 14:45:30,092 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:49:16,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1258909706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:49:16,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:49:16,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [124] imperfect sequences [9, 5, 5] total 137 [2022-11-23 14:49:16,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134155171] [2022-11-23 14:49:16,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:49:16,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2022-11-23 14:49:16,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:49:16,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2022-11-23 14:49:16,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8582, Invalid=10324, Unknown=0, NotChecked=0, Total=18906 [2022-11-23 14:49:16,195 INFO L87 Difference]: Start difference. First operand 180 states and 290 transitions. Second operand has 126 states, 25 states have (on average 1.16) internal successors, (29), 27 states have internal predecessors, (29), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2022-11-23 14:49:25,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:49:25,314 INFO L93 Difference]: Finished difference Result 190 states and 302 transitions. [2022-11-23 14:49:25,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-11-23 14:49:25,316 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 25 states have (on average 1.16) internal successors, (29), 27 states have internal predecessors, (29), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) Word has length 325 [2022-11-23 14:49:25,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:49:25,319 INFO L225 Difference]: With dead ends: 190 [2022-11-23 14:49:25,319 INFO L226 Difference]: Without dead ends: 189 [2022-11-23 14:49:25,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 845 SyntacticMatches, 5 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 226.1s TimeCoverageRelationStatistics Valid=8582, Invalid=10324, Unknown=0, NotChecked=0, Total=18906 [2022-11-23 14:49:25,323 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 375 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:49:25,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 223 Invalid, 2202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-11-23 14:49:25,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-23 14:49:25,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 187. [2022-11-23 14:49:25,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 79 states have internal predecessors, (87), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2022-11-23 14:49:25,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 299 transitions. [2022-11-23 14:49:25,468 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 299 transitions. Word has length 325 [2022-11-23 14:49:25,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:49:25,470 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 299 transitions. [2022-11-23 14:49:25,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 25 states have (on average 1.16) internal successors, (29), 27 states have internal predecessors, (29), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2022-11-23 14:49:25,470 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 299 transitions. [2022-11-23 14:49:25,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-23 14:49:25,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:49:25,477 INFO L195 NwaCegarLoop]: trace histogram [99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:49:25,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:49:25,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:49:25,686 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-23 14:49:25,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:49:25,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1499978507, now seen corresponding path program 1 times [2022-11-23 14:49:25,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:49:25,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70826385] [2022-11-23 14:49:25,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:49:25,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:49:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:49:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-23 14:49:26,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:49:26,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70826385] [2022-11-23 14:49:26,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70826385] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:49:26,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190617559] [2022-11-23 14:49:26,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:49:26,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:49:26,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:49:26,298 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:49:26,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7227b4-3af9-4f22-847f-e7db17d435f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:49:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:49:26,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 14:49:26,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:49:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-23 14:49:27,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:49:27,850 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-23 14:49:27,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190617559] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:49:27,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1093253216] [2022-11-23 14:49:27,854 INFO L159 IcfgInterpreter]: Started Sifa with 132 locations of interest [2022-11-23 14:49:27,854 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:49:27,855 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:49:27,855 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:49:27,856 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:50:08,792 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-23 14:50:08,794 INFO L180 IcfgInterpreter]: Interpretation finished