./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 2329fc70 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_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-009.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-2329fc7 [2022-12-14 14:26:00,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:26:00,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:26:00,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:26:00,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:26:00,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:26:00,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:26:00,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:26:00,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:26:00,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:26:00,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:26:00,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:26:00,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:26:00,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:26:00,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:26:00,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:26:00,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:26:00,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:26:00,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:26:00,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:26:00,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:26:00,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:26:00,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:26:00,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:26:00,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:26:00,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:26:00,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:26:00,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:26:00,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:26:00,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:26:00,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:26:00,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:26:00,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:26:00,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:26:00,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:26:00,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:26:00,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:26:00,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:26:00,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:26:00,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:26:00,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:26:00,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 14:26:00,144 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:26:00,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:26:00,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:26:00,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:26:00,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:26:00,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:26:00,146 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:26:00,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:26:00,146 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:26:00,146 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:26:00,146 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:26:00,146 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:26:00,147 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:26:00,147 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:26:00,147 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:26:00,147 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:26:00,147 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:26:00,147 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:26:00,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:26:00,148 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:26:00,148 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:26:00,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:26:00,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:26:00,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:26:00,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:26:00,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:26:00,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:26:00,149 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:26:00,150 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:26:00,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:26:00,150 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:26:00,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:26:00,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:26:00,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:26:00,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:26:00,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:26:00,151 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:26:00,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:26:00,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:26:00,151 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:26:00,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:26:00,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:26:00,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:26:00,152 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_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 467fcaafa9af0a00772f5009c99943c6cb7078cb0bca94a00a243b41a6183129 [2022-12-14 14:26:00,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:26:00,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:26:00,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:26:00,391 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:26:00,391 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:26:00,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/xcsp/AllInterval-009.c [2022-12-14 14:26:02,952 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:26:03,125 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:26:03,126 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/sv-benchmarks/c/xcsp/AllInterval-009.c [2022-12-14 14:26:03,131 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/data/6069b91a5/d6fddfe1206b4e74845dc3b653f64483/FLAG41cf783ac [2022-12-14 14:26:03,525 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/data/6069b91a5/d6fddfe1206b4e74845dc3b653f64483 [2022-12-14 14:26:03,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:26:03,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:26:03,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:26:03,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:26:03,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:26:03,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333706e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03, skipping insertion in model container [2022-12-14 14:26:03,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:26:03,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:26:03,699 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_5237326a-f760-4b35-a747-173f774ecda3/sv-benchmarks/c/xcsp/AllInterval-009.c[5030,5043] [2022-12-14 14:26:03,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:26:03,711 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:26:03,734 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_5237326a-f760-4b35-a747-173f774ecda3/sv-benchmarks/c/xcsp/AllInterval-009.c[5030,5043] [2022-12-14 14:26:03,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:26:03,745 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:26:03,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03 WrapperNode [2022-12-14 14:26:03,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:26:03,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:26:03,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:26:03,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:26:03,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,777 INFO L138 Inliner]: procedures = 13, calls = 113, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 272 [2022-12-14 14:26:03,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:26:03,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:26:03,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:26:03,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:26:03,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,793 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:26:03,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:26:03,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:26:03,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:26:03,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (1/1) ... [2022-12-14 14:26:03,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:26:03,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:26:03,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:26:03,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:26:03,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:26:03,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:26:03,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:26:03,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:26:03,856 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-12-14 14:26:03,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-12-14 14:26:03,918 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:26:03,919 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:26:04,230 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:26:04,259 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:26:04,259 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:26:04,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:26:04 BoogieIcfgContainer [2022-12-14 14:26:04,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:26:04,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:26:04,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:26:04,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:26:04,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:26:03" (1/3) ... [2022-12-14 14:26:04,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a685b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:26:04, skipping insertion in model container [2022-12-14 14:26:04,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:26:03" (2/3) ... [2022-12-14 14:26:04,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a685b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:26:04, skipping insertion in model container [2022-12-14 14:26:04,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:26:04" (3/3) ... [2022-12-14 14:26:04,278 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-009.c [2022-12-14 14:26:04,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:26:04,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-12-14 14:26:04,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:26:04,346 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;@7fa578bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:26:04,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-12-14 14:26:04,351 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) [2022-12-14 14:26:04,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-14 14:26:04,364 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:26:04,365 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] [2022-12-14 14:26:04,365 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)] === [2022-12-14 14:26:04,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:26:04,369 INFO L85 PathProgramCache]: Analyzing trace with hash -954106397, now seen corresponding path program 1 times [2022-12-14 14:26:04,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:26:04,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936535612] [2022-12-14 14:26:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:04,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:26:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:05,314 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-12-14 14:26:05,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:26:05,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936535612] [2022-12-14 14:26:05,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936535612] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:26:05,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345545436] [2022-12-14 14:26:05,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:26:05,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:26:05,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:26:05,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:26:05,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:26:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:26:05,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 14:26:05,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:26:06,060 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-12-14 14:26:06,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:26:06,454 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-12-14 14:26:06,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345545436] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:26:06,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1052481700] [2022-12-14 14:26:06,485 INFO L159 IcfgInterpreter]: Started Sifa with 121 locations of interest [2022-12-14 14:26:06,486 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:26:06,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:26:06,495 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:26:06,496 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:26:40,791 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-12-14 14:26:40,806 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:28:34,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1052481700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:34,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:28:34,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [118] imperfect sequences [4, 4, 4] total 125 [2022-12-14 14:28:34,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238886413] [2022-12-14 14:28:34,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:34,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-12-14 14:28:34,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:28:34,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-12-14 14:28:34,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7612, Invalid=8138, Unknown=0, NotChecked=0, Total=15750 [2022-12-14 14:28:34,316 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) [2022-12-14 14:28:38,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:38,285 INFO L93 Difference]: Finished difference Result 209 states and 321 transitions. [2022-12-14 14:28:38,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-12-14 14:28:38,288 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 [2022-12-14 14:28:38,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:38,295 INFO L225 Difference]: With dead ends: 209 [2022-12-14 14:28:38,295 INFO L226 Difference]: Without dead ends: 189 [2022-12-14 14:28:38,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 944 GetRequests, 819 SyntacticMatches, 1 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 113.4s TimeCoverageRelationStatistics Valid=7612, Invalid=8138, Unknown=0, NotChecked=0, Total=15750 [2022-12-14 14:28:38,301 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 360 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:28:38,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 254 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 14:28:38,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-12-14 14:28:38,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2022-12-14 14:28:38,443 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) [2022-12-14 14:28:38,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 299 transitions. [2022-12-14 14:28:38,446 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 299 transitions. Word has length 314 [2022-12-14 14:28:38,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:38,448 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 299 transitions. [2022-12-14 14:28:38,448 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) [2022-12-14 14:28:38,449 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 299 transitions. [2022-12-14 14:28:38,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-12-14 14:28:38,453 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:38,453 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] [2022-12-14 14:28:38,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:28:38,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 14:28:38,656 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)] === [2022-12-14 14:28:38,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:38,658 INFO L85 PathProgramCache]: Analyzing trace with hash 310042999, now seen corresponding path program 1 times [2022-12-14 14:28:38,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:38,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953641692] [2022-12-14 14:28:38,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:38,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-12-14 14:28:38,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:28:38,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953641692] [2022-12-14 14:28:38,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953641692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:28:38,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:28:38,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:28:38,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816094280] [2022-12-14 14:28:38,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:28:38,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:28:38,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:28:38,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:28:38,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:28:38,818 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) [2022-12-14 14:28:39,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:39,008 INFO L93 Difference]: Finished difference Result 196 states and 306 transitions. [2022-12-14 14:28:39,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:28:39,008 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 [2022-12-14 14:28:39,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:39,010 INFO L225 Difference]: With dead ends: 196 [2022-12-14 14:28:39,010 INFO L226 Difference]: Without dead ends: 188 [2022-12-14 14:28:39,011 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 [2022-12-14 14:28:39,011 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 23 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-12-14 14:28:39,012 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] [2022-12-14 14:28:39,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-12-14 14:28:39,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 181. [2022-12-14 14:28:39,125 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) [2022-12-14 14:28:39,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 291 transitions. [2022-12-14 14:28:39,126 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 291 transitions. Word has length 317 [2022-12-14 14:28:39,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:39,127 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 291 transitions. [2022-12-14 14:28:39,128 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) [2022-12-14 14:28:39,128 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 291 transitions. [2022-12-14 14:28:39,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-12-14 14:28:39,131 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:39,132 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] [2022-12-14 14:28:39,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:28:39,132 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)] === [2022-12-14 14:28:39,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:39,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1021398538, now seen corresponding path program 1 times [2022-12-14 14:28:39,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:39,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016182388] [2022-12-14 14:28:39,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:39,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-12-14 14:28:39,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:28:39,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016182388] [2022-12-14 14:28:39,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016182388] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:28:39,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923791040] [2022-12-14 14:28:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:39,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:28:39,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:28:39,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:28:39,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:28:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:39,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:28:39,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:28:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-12-14 14:28:39,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:28:40,196 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-12-14 14:28:40,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923791040] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:28:40,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [987913355] [2022-12-14 14:28:40,200 INFO L159 IcfgInterpreter]: Started Sifa with 125 locations of interest [2022-12-14 14:28:40,200 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:28:40,200 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:28:40,200 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:28:40,200 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:29:12,488 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-12-14 14:29:12,496 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:31:11,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [987913355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:31:11,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:31:11,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [120] imperfect sequences [5, 5, 5] total 126 [2022-12-14 14:31:11,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662230345] [2022-12-14 14:31:11,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:31:11,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2022-12-14 14:31:11,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:31:11,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2022-12-14 14:31:11,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7625, Invalid=8377, Unknown=0, NotChecked=0, Total=16002 [2022-12-14 14:31:11,473 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) [2022-12-14 14:31:15,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:31:15,437 INFO L93 Difference]: Finished difference Result 182 states and 292 transitions. [2022-12-14 14:31:15,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-12-14 14:31:15,438 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 [2022-12-14 14:31:15,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:31:15,439 INFO L225 Difference]: With dead ends: 182 [2022-12-14 14:31:15,439 INFO L226 Difference]: Without dead ends: 181 [2022-12-14 14:31:15,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 957 GetRequests, 827 SyntacticMatches, 5 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 118.9s TimeCoverageRelationStatistics Valid=7625, Invalid=8377, Unknown=0, NotChecked=0, Total=16002 [2022-12-14 14:31:15,443 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 170 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:31:15,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 223 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 14:31:15,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-12-14 14:31:15,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 180. [2022-12-14 14:31:15,551 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) [2022-12-14 14:31:15,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 290 transitions. [2022-12-14 14:31:15,552 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 290 transitions. Word has length 318 [2022-12-14 14:31:15,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:31:15,553 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 290 transitions. [2022-12-14 14:31:15,553 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) [2022-12-14 14:31:15,553 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 290 transitions. [2022-12-14 14:31:15,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-12-14 14:31:15,555 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:31:15,555 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] [2022-12-14 14:31:15,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 14:31:15,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:31:15,758 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)] === [2022-12-14 14:31:15,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:31:15,759 INFO L85 PathProgramCache]: Analyzing trace with hash 365489753, now seen corresponding path program 1 times [2022-12-14 14:31:15,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:31:15,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238466821] [2022-12-14 14:31:15,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:31:15,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:31:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:31:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 116 proven. 264 refuted. 0 times theorem prover too weak. 9322 trivial. 0 not checked. [2022-12-14 14:31:16,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:31:16,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238466821] [2022-12-14 14:31:16,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238466821] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:31:16,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804787864] [2022-12-14 14:31:16,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:31:16,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:31:16,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:31:16,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:31:16,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:31:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:31:16,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:31:16,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:31:16,828 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-12-14 14:31:16,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:31:17,079 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-12-14 14:31:17,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804787864] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:31:17,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1509493110] [2022-12-14 14:31:17,081 INFO L159 IcfgInterpreter]: Started Sifa with 130 locations of interest [2022-12-14 14:31:17,082 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:31:17,082 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:31:17,082 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:31:17,082 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:31:50,445 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-12-14 14:31:50,446 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:34:07,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1509493110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:34:07,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:34:07,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [124] imperfect sequences [9, 5, 5] total 137 [2022-12-14 14:34:07,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332356073] [2022-12-14 14:34:07,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:34:07,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2022-12-14 14:34:07,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:34:07,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2022-12-14 14:34:07,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8582, Invalid=10324, Unknown=0, NotChecked=0, Total=18906 [2022-12-14 14:34:07,263 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) [2022-12-14 14:34:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:34:12,845 INFO L93 Difference]: Finished difference Result 190 states and 302 transitions. [2022-12-14 14:34:12,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-12-14 14:34:12,846 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 [2022-12-14 14:34:12,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:34:12,849 INFO L225 Difference]: With dead ends: 190 [2022-12-14 14:34:12,849 INFO L226 Difference]: Without dead ends: 189 [2022-12-14 14:34:12,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 845 SyntacticMatches, 5 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 136.8s TimeCoverageRelationStatistics Valid=8582, Invalid=10324, Unknown=0, NotChecked=0, Total=18906 [2022-12-14 14:34:12,852 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 287 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:34:12,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 223 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-12-14 14:34:12,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-12-14 14:34:12,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 187. [2022-12-14 14:34:12,970 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) [2022-12-14 14:34:12,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 299 transitions. [2022-12-14 14:34:12,971 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 299 transitions. Word has length 325 [2022-12-14 14:34:12,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:34:12,971 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 299 transitions. [2022-12-14 14:34:12,972 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) [2022-12-14 14:34:12,972 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 299 transitions. [2022-12-14 14:34:12,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-12-14 14:34:12,974 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:34:12,975 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] [2022-12-14 14:34:12,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:34:13,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:34:13,177 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)] === [2022-12-14 14:34:13,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:34:13,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1499978507, now seen corresponding path program 1 times [2022-12-14 14:34:13,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:34:13,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382912723] [2022-12-14 14:34:13,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:34:13,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:34:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:34:13,442 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-12-14 14:34:13,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:34:13,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382912723] [2022-12-14 14:34:13,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382912723] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:34:13,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641243453] [2022-12-14 14:34:13,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:34:13,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:34:13,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:34:13,443 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:34:13,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:34:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:34:13,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:34:13,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:34:13,854 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-12-14 14:34:13,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:34:14,108 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-12-14 14:34:14,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641243453] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:34:14,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1107852056] [2022-12-14 14:34:14,111 INFO L159 IcfgInterpreter]: Started Sifa with 132 locations of interest [2022-12-14 14:34:14,111 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:34:14,112 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:34:14,112 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:34:14,112 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:34:48,238 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-12-14 14:34:48,239 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:37:10,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1107852056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:37:10,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:37:10,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [125] imperfect sequences [5, 5, 5] total 131 [2022-12-14 14:37:10,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545419019] [2022-12-14 14:37:10,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:37:10,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2022-12-14 14:37:10,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:37:10,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2022-12-14 14:37:10,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8235, Invalid=9057, Unknown=0, NotChecked=0, Total=17292 [2022-12-14 14:37:10,544 INFO L87 Difference]: Start difference. First operand 187 states and 299 transitions. Second operand has 127 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 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) [2022-12-14 14:37:16,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:37:16,078 INFO L93 Difference]: Finished difference Result 189 states and 301 transitions. [2022-12-14 14:37:16,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-12-14 14:37:16,079 INFO L78 Accepts]: Start accepts. Automaton has has 127 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 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 327 [2022-12-14 14:37:16,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:37:16,080 INFO L225 Difference]: With dead ends: 189 [2022-12-14 14:37:16,080 INFO L226 Difference]: Without dead ends: 188 [2022-12-14 14:37:16,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 984 GetRequests, 847 SyntacticMatches, 7 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 142.2s TimeCoverageRelationStatistics Valid=8235, Invalid=9057, Unknown=0, NotChecked=0, Total=17292 [2022-12-14 14:37:16,082 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 174 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:37:16,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 214 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1848 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-12-14 14:37:16,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-12-14 14:37:16,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 179. [2022-12-14 14:37:16,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 72 states have internal predecessors, (79), 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) [2022-12-14 14:37:16,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 289 transitions. [2022-12-14 14:37:16,190 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 289 transitions. Word has length 327 [2022-12-14 14:37:16,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:37:16,190 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 289 transitions. [2022-12-14 14:37:16,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 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) [2022-12-14 14:37:16,191 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 289 transitions. [2022-12-14 14:37:16,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-12-14 14:37:16,192 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:37:16,193 INFO L195 NwaCegarLoop]: trace histogram [100, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:37:16,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:37:16,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:37:16,395 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 14:37:16,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:37:16,396 INFO L85 PathProgramCache]: Analyzing trace with hash -611557306, now seen corresponding path program 1 times [2022-12-14 14:37:16,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:37:16,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25921987] [2022-12-14 14:37:16,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:37:16,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:37:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:37:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 4 proven. 95 refuted. 0 times theorem prover too weak. 9801 trivial. 0 not checked. [2022-12-14 14:37:16,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:37:16,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25921987] [2022-12-14 14:37:16,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25921987] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:37:16,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110630779] [2022-12-14 14:37:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:37:16,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:37:16,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:37:16,650 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:37:16,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 14:37:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:37:16,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 14:37:16,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:37:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 4 proven. 95 refuted. 0 times theorem prover too weak. 9801 trivial. 0 not checked. [2022-12-14 14:37:17,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:37:17,385 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 4 proven. 95 refuted. 0 times theorem prover too weak. 9801 trivial. 0 not checked. [2022-12-14 14:37:17,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110630779] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:37:17,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1396074440] [2022-12-14 14:37:17,388 INFO L159 IcfgInterpreter]: Started Sifa with 135 locations of interest [2022-12-14 14:37:17,388 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:37:17,389 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:37:17,389 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:37:17,389 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:37:52,391 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-12-14 14:37:52,401 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:40:20,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1396074440] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:40:20,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:40:20,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [128] imperfect sequences [5, 5, 5] total 134 [2022-12-14 14:40:20,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104736461] [2022-12-14 14:40:20,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:40:20,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-12-14 14:40:20,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:40:20,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-12-14 14:40:20,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8601, Invalid=9489, Unknown=0, NotChecked=0, Total=18090 [2022-12-14 14:40:20,680 INFO L87 Difference]: Start difference. First operand 179 states and 289 transitions. Second operand has 130 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 31 states have internal predecessors, (33), 100 states have call successors, (100), 1 states have call predecessors, (100), 1 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2022-12-14 14:40:25,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:40:25,833 INFO L93 Difference]: Finished difference Result 197 states and 311 transitions. [2022-12-14 14:40:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-12-14 14:40:25,834 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 31 states have internal predecessors, (33), 100 states have call successors, (100), 1 states have call predecessors, (100), 1 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) Word has length 332 [2022-12-14 14:40:25,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:40:25,835 INFO L225 Difference]: With dead ends: 197 [2022-12-14 14:40:25,835 INFO L226 Difference]: Without dead ends: 196 [2022-12-14 14:40:25,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 999 GetRequests, 859 SyntacticMatches, 7 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 148.2s TimeCoverageRelationStatistics Valid=8601, Invalid=9489, Unknown=0, NotChecked=0, Total=18090 [2022-12-14 14:40:25,837 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 373 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:40:25,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 201 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 14:40:25,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-12-14 14:40:25,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 191. [2022-12-14 14:40:25,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 77 states have (on average 1.1818181818181819) internal successors, (91), 82 states have internal predecessors, (91), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2022-12-14 14:40:25,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 305 transitions. [2022-12-14 14:40:25,948 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 305 transitions. Word has length 332 [2022-12-14 14:40:25,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:40:25,948 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 305 transitions. [2022-12-14 14:40:25,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 31 states have internal predecessors, (33), 100 states have call successors, (100), 1 states have call predecessors, (100), 1 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2022-12-14 14:40:25,949 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 305 transitions. [2022-12-14 14:40:25,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-12-14 14:40:25,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:40:25,950 INFO L195 NwaCegarLoop]: trace histogram [100, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:40:25,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 14:40:26,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:40:26,152 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 14:40:26,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:40:26,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1128948898, now seen corresponding path program 1 times [2022-12-14 14:40:26,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:40:26,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500221063] [2022-12-14 14:40:26,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:40:26,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:40:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:40:26,392 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 4 proven. 95 refuted. 0 times theorem prover too weak. 9801 trivial. 0 not checked. [2022-12-14 14:40:26,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:40:26,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500221063] [2022-12-14 14:40:26,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500221063] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:40:26,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482396820] [2022-12-14 14:40:26,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:40:26,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:40:26,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:40:26,394 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:40:26,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5237326a-f760-4b35-a747-173f774ecda3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 14:40:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:40:26,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 14:40:26,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:40:26,785 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 2 proven. 97 refuted. 0 times theorem prover too weak. 9801 trivial. 0 not checked. [2022-12-14 14:40:26,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:40:27,023 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 2 proven. 97 refuted. 0 times theorem prover too weak. 9801 trivial. 0 not checked. [2022-12-14 14:40:27,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482396820] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:40:27,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [193205605] [2022-12-14 14:40:27,024 INFO L159 IcfgInterpreter]: Started Sifa with 137 locations of interest [2022-12-14 14:40:27,025 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:40:27,025 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:40:27,025 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:40:27,025 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs