./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-007.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-007.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:26:37,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:26:37,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:26:37,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:26:37,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:26:37,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:26:37,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:26:37,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:26:37,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:26:37,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:26:37,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:26:37,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:26:37,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:26:37,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:26:37,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:26:37,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:26:37,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:26:38,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:26:38,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:26:38,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:26:38,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:26:38,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:26:38,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:26:38,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:26:38,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:26:38,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:26:38,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:26:38,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:26:38,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:26:38,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:26:38,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:26:38,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:26:38,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:26:38,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:26:38,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:26:38,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:26:38,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:26:38,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:26:38,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:26:38,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:26:38,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:26:38,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:26:38,078 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:26:38,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:26:38,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:26:38,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:26:38,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:26:38,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:26:38,084 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:26:38,084 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:26:38,084 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:26:38,085 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:26:38,086 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:26:38,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:26:38,086 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:26:38,087 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:26:38,087 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:26:38,087 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:26:38,087 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:26:38,088 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:26:38,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:26:38,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:26:38,089 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:26:38,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:26:38,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:26:38,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:26:38,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:26:38,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:26:38,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:26:38,093 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:26:38,093 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:26:38,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:26:38,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:26:38,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:26:38,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:26:38,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:26:38,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:26:38,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:26:38,095 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:26:38,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:26:38,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:26:38,096 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:26:38,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:26:38,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:26:38,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:26:38,097 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_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 [2022-11-19 07:26:38,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:26:38,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:26:38,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:26:38,438 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:26:38,439 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:26:38,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/xcsp/AllInterval-007.c [2022-11-19 07:26:38,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/data/7c3eb36bb/ae91466117364f85b29a5abc2ec68c5d/FLAG09b4748e6 [2022-11-19 07:26:39,221 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:26:39,221 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/sv-benchmarks/c/xcsp/AllInterval-007.c [2022-11-19 07:26:39,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/data/7c3eb36bb/ae91466117364f85b29a5abc2ec68c5d/FLAG09b4748e6 [2022-11-19 07:26:39,581 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/data/7c3eb36bb/ae91466117364f85b29a5abc2ec68c5d [2022-11-19 07:26:39,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:26:39,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:26:39,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:26:39,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:26:39,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:26:39,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:26:39" (1/1) ... [2022-11-19 07:26:39,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7439781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:39, skipping insertion in model container [2022-11-19 07:26:39,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:26:39" (1/1) ... [2022-11-19 07:26:39,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:26:39,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:26:39,946 WARN L234 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_4b564892-a8f2-4f1e-9642-b7fdaec9195a/sv-benchmarks/c/xcsp/AllInterval-007.c[3690,3703] [2022-11-19 07:26:39,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:26:39,968 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:26:40,027 WARN L234 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_4b564892-a8f2-4f1e-9642-b7fdaec9195a/sv-benchmarks/c/xcsp/AllInterval-007.c[3690,3703] [2022-11-19 07:26:40,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:26:40,048 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:26:40,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40 WrapperNode [2022-11-19 07:26:40,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:26:40,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:26:40,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:26:40,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:26:40,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,118 INFO L138 Inliner]: procedures = 13, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 198 [2022-11-19 07:26:40,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:26:40,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:26:40,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:26:40,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:26:40,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,156 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:26:40,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:26:40,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:26:40,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:26:40,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (1/1) ... [2022-11-19 07:26:40,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:26:40,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:26:40,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:26:40,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:26:40,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:26:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:26:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:26:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:26:40,255 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-19 07:26:40,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-19 07:26:40,349 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:26:40,351 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:26:40,890 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:26:40,919 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:26:40,919 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:26:40,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:26:40 BoogieIcfgContainer [2022-11-19 07:26:40,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:26:40,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:26:40,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:26:40,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:26:40,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:26:39" (1/3) ... [2022-11-19 07:26:40,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6393b82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:26:40, skipping insertion in model container [2022-11-19 07:26:40,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:26:40" (2/3) ... [2022-11-19 07:26:40,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6393b82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:26:40, skipping insertion in model container [2022-11-19 07:26:40,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:26:40" (3/3) ... [2022-11-19 07:26:40,941 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-007.c [2022-11-19 07:26:40,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:26:40,965 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-19 07:26:41,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:26:41,088 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;@9a942ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:26:41,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-19 07:26:41,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 53 states have (on average 1.5660377358490567) internal successors, (83), 77 states have internal predecessors, (83), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-19 07:26:41,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-19 07:26:41,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:26:41,136 INFO L195 NwaCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:26:41,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-19 07:26:41,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:26:41,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1471271386, now seen corresponding path program 1 times [2022-11-19 07:26:41,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:26:41,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105433412] [2022-11-19 07:26:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:41,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:26:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:42,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 2 proven. 59 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-19 07:26:42,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:26:42,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105433412] [2022-11-19 07:26:42,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105433412] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:26:42,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161017120] [2022-11-19 07:26:42,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:26:42,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:26:42,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:26:42,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:26:42,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:26:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:26:42,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:26:42,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:26:43,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 2 proven. 59 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-19 07:26:43,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:26:44,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 2 proven. 59 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-19 07:26:44,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161017120] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:26:44,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1986821922] [2022-11-19 07:26:44,399 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2022-11-19 07:26:44,399 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:26:44,406 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:26:44,415 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:26:44,416 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:27:05,155 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-19 07:27:05,194 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:28:07,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1986821922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:07,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:28:07,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [5, 4, 4] total 85 [2022-11-19 07:28:07,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734247437] [2022-11-19 07:28:07,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:07,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-11-19 07:28:07,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:07,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-11-19 07:28:07,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3471, Invalid=3839, Unknown=0, NotChecked=0, Total=7310 [2022-11-19 07:28:07,301 INFO L87 Difference]: Start difference. First operand has 147 states, 53 states have (on average 1.5660377358490567) internal successors, (83), 77 states have internal predecessors, (83), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 80 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-19 07:28:10,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:10,519 INFO L93 Difference]: Finished difference Result 147 states and 219 transitions. [2022-11-19 07:28:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-19 07:28:10,522 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 202 [2022-11-19 07:28:10,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:10,534 INFO L225 Difference]: With dead ends: 147 [2022-11-19 07:28:10,535 INFO L226 Difference]: Without dead ends: 131 [2022-11-19 07:28:10,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 523 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 62.1s TimeCoverageRelationStatistics Valid=3471, Invalid=3839, Unknown=0, NotChecked=0, Total=7310 [2022-11-19 07:28:10,547 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 431 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:10,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 180 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 07:28:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-19 07:28:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-11-19 07:28:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 62 states have internal predecessors, (67), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-19 07:28:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 201 transitions. [2022-11-19 07:28:10,760 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 201 transitions. Word has length 202 [2022-11-19 07:28:10,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:10,763 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 201 transitions. [2022-11-19 07:28:10,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-19 07:28:10,764 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 201 transitions. [2022-11-19 07:28:10,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-19 07:28:10,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:10,775 INFO L195 NwaCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:10,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:28:10,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 07:28:10,983 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-19 07:28:10,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:10,984 INFO L85 PathProgramCache]: Analyzing trace with hash 504716024, now seen corresponding path program 1 times [2022-11-19 07:28:10,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:10,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005811863] [2022-11-19 07:28:10,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:10,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:11,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-19 07:28:11,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:11,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005811863] [2022-11-19 07:28:11,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005811863] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:28:11,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952727046] [2022-11-19 07:28:11,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:11,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:28:11,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:28:11,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:28:11,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:28:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:11,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:28:11,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:28:12,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-19 07:28:12,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:28:12,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-11-19 07:28:12,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952727046] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:28:12,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [261491090] [2022-11-19 07:28:12,573 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2022-11-19 07:28:12,574 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:28:12,575 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:28:12,575 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:28:12,576 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:28:28,065 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-19 07:28:28,098 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:29:34,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [261491090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:34,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:29:34,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [5, 5, 5] total 86 [2022-11-19 07:29:34,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811044725] [2022-11-19 07:29:34,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:34,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-11-19 07:29:34,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:34,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-11-19 07:29:34,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3485, Invalid=3997, Unknown=0, NotChecked=0, Total=7482 [2022-11-19 07:29:34,491 INFO L87 Difference]: Start difference. First operand 131 states and 201 transitions. Second operand has 82 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-19 07:29:37,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:37,745 INFO L93 Difference]: Finished difference Result 132 states and 202 transitions. [2022-11-19 07:29:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-19 07:29:37,747 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 205 [2022-11-19 07:29:37,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:37,750 INFO L225 Difference]: With dead ends: 132 [2022-11-19 07:29:37,750 INFO L226 Difference]: Without dead ends: 130 [2022-11-19 07:29:37,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 529 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 66.4s TimeCoverageRelationStatistics Valid=3485, Invalid=3997, Unknown=0, NotChecked=0, Total=7482 [2022-11-19 07:29:37,753 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 281 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:37,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 163 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 07:29:37,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-19 07:29:37,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 129. [2022-11-19 07:29:37,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 60 states have internal predecessors, (65), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-19 07:29:37,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 199 transitions. [2022-11-19 07:29:37,841 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 199 transitions. Word has length 205 [2022-11-19 07:29:37,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:37,842 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 199 transitions. [2022-11-19 07:29:37,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-19 07:29:37,843 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 199 transitions. [2022-11-19 07:29:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-19 07:29:37,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:37,848 INFO L195 NwaCegarLoop]: trace histogram [63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:29:37,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:29:38,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:29:38,055 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-19 07:29:38,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:38,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2937429, now seen corresponding path program 1 times [2022-11-19 07:29:38,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:38,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778808358] [2022-11-19 07:29:38,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:38,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:38,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 6 proven. 116 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2022-11-19 07:29:38,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:38,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778808358] [2022-11-19 07:29:38,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778808358] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:29:38,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671086860] [2022-11-19 07:29:38,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:38,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:29:38,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:29:38,627 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:29:38,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:29:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:38,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:29:38,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:29:39,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-11-19 07:29:39,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:29:39,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-11-19 07:29:39,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671086860] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:29:39,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [269318211] [2022-11-19 07:29:39,652 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-19 07:29:39,652 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:29:39,653 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:29:39,653 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:29:39,653 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:29:54,163 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-19 07:29:54,165 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:31:01,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [269318211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:01,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:31:01,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [5, 5, 5] total 92 [2022-11-19 07:31:01,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688816037] [2022-11-19 07:31:01,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:01,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-11-19 07:31:01,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:01,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-11-19 07:31:01,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3899, Invalid=4657, Unknown=0, NotChecked=0, Total=8556 [2022-11-19 07:31:01,177 INFO L87 Difference]: Start difference. First operand 129 states and 199 transitions. Second operand has 86 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 23 states have internal predecessors, (24), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-19 07:31:04,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:31:04,965 INFO L93 Difference]: Finished difference Result 140 states and 212 transitions. [2022-11-19 07:31:04,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-11-19 07:31:04,966 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 23 states have internal predecessors, (24), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 212 [2022-11-19 07:31:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:31:04,968 INFO L225 Difference]: With dead ends: 140 [2022-11-19 07:31:04,969 INFO L226 Difference]: Without dead ends: 138 [2022-11-19 07:31:04,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 545 SyntacticMatches, 4 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 67.0s TimeCoverageRelationStatistics Valid=3899, Invalid=4657, Unknown=0, NotChecked=0, Total=8556 [2022-11-19 07:31:04,974 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 403 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:31:04,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 163 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-19 07:31:04,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-19 07:31:05,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2022-11-19 07:31:05,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 57 states have (on average 1.263157894736842) internal successors, (72), 66 states have internal predecessors, (72), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-19 07:31:05,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 208 transitions. [2022-11-19 07:31:05,053 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 208 transitions. Word has length 212 [2022-11-19 07:31:05,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:31:05,054 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 208 transitions. [2022-11-19 07:31:05,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 23 states have internal predecessors, (24), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-19 07:31:05,055 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 208 transitions. [2022-11-19 07:31:05,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-19 07:31:05,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:05,061 INFO L195 NwaCegarLoop]: trace histogram [63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:31:05,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:31:05,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:31:05,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-19 07:31:05,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:05,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1285618895, now seen corresponding path program 1 times [2022-11-19 07:31:05,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:05,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589108962] [2022-11-19 07:31:05,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:05,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-11-19 07:31:05,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:05,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589108962] [2022-11-19 07:31:05,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589108962] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:31:05,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571496361] [2022-11-19 07:31:05,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:05,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:31:05,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:31:05,600 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:31:05,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:31:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:05,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:31:05,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:31:06,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-11-19 07:31:06,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:31:06,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-11-19 07:31:06,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571496361] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:31:06,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [716787868] [2022-11-19 07:31:06,398 INFO L159 IcfgInterpreter]: Started Sifa with 91 locations of interest [2022-11-19 07:31:06,398 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:31:06,398 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:31:06,399 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:31:06,399 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:31:20,049 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-19 07:31:20,050 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:32:29,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [716787868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:29,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:32:29,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [85] imperfect sequences [5, 5, 5] total 91 [2022-11-19 07:32:29,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239617814] [2022-11-19 07:32:29,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:29,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-11-19 07:32:29,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:29,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-11-19 07:32:29,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3895, Invalid=4477, Unknown=0, NotChecked=0, Total=8372 [2022-11-19 07:32:29,449 INFO L87 Difference]: Start difference. First operand 136 states and 208 transitions. Second operand has 87 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-19 07:32:33,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:33,618 INFO L93 Difference]: Finished difference Result 138 states and 210 transitions. [2022-11-19 07:32:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-11-19 07:32:33,619 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 214 [2022-11-19 07:32:33,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:33,622 INFO L225 Difference]: With dead ends: 138 [2022-11-19 07:32:33,622 INFO L226 Difference]: Without dead ends: 136 [2022-11-19 07:32:33,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 549 SyntacticMatches, 6 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 69.4s TimeCoverageRelationStatistics Valid=3895, Invalid=4477, Unknown=0, NotChecked=0, Total=8372 [2022-11-19 07:32:33,625 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 155 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:33,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 162 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-19 07:32:33,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-19 07:32:33,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 127. [2022-11-19 07:32:33,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 58 states have internal predecessors, (63), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-19 07:32:33,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 197 transitions. [2022-11-19 07:32:33,702 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 197 transitions. Word has length 214 [2022-11-19 07:32:33,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:33,703 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 197 transitions. [2022-11-19 07:32:33,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-19 07:32:33,704 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 197 transitions. [2022-11-19 07:32:33,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-19 07:32:33,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:33,708 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:33,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:33,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:33,914 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-19 07:32:33,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:33,915 INFO L85 PathProgramCache]: Analyzing trace with hash -492329700, now seen corresponding path program 1 times [2022-11-19 07:32:33,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:33,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017602119] [2022-11-19 07:32:33,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:33,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:34,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 10 proven. 114 refuted. 0 times theorem prover too weak. 3908 trivial. 0 not checked. [2022-11-19 07:32:34,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:34,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017602119] [2022-11-19 07:32:34,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017602119] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:32:34,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265531606] [2022-11-19 07:32:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:34,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:34,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:34,278 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:32:34,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:32:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:34,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:32:34,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-19 07:32:34,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:35,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-19 07:32:35,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265531606] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:35,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1123699241] [2022-11-19 07:32:35,163 INFO L159 IcfgInterpreter]: Started Sifa with 94 locations of interest [2022-11-19 07:32:35,165 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:32:35,166 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:32:35,167 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:32:35,167 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:32:48,535 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-19 07:32:48,562 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:34:02,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1123699241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:34:02,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:34:02,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [5, 5, 5] total 96 [2022-11-19 07:34:02,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116172224] [2022-11-19 07:34:02,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:34:02,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-11-19 07:34:02,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:34:02,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-11-19 07:34:02,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4232, Invalid=5080, Unknown=0, NotChecked=0, Total=9312 [2022-11-19 07:34:02,953 INFO L87 Difference]: Start difference. First operand 127 states and 197 transitions. Second operand has 90 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 27 states have internal predecessors, (28), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-19 07:34:06,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:34:06,489 INFO L93 Difference]: Finished difference Result 146 states and 220 transitions. [2022-11-19 07:34:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-11-19 07:34:06,490 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 27 states have internal predecessors, (28), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 219 [2022-11-19 07:34:06,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:34:06,491 INFO L225 Difference]: With dead ends: 146 [2022-11-19 07:34:06,492 INFO L226 Difference]: Without dead ends: 144 [2022-11-19 07:34:06,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 561 SyntacticMatches, 5 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 74.4s TimeCoverageRelationStatistics Valid=4232, Invalid=5080, Unknown=0, NotChecked=0, Total=9312 [2022-11-19 07:34:06,494 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 375 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:34:06,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 150 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-19 07:34:06,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-19 07:34:06,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 139. [2022-11-19 07:34:06,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 61 states have (on average 1.2295081967213115) internal successors, (75), 68 states have internal predecessors, (75), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-19 07:34:06,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 213 transitions. [2022-11-19 07:34:06,560 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 213 transitions. Word has length 219 [2022-11-19 07:34:06,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:34:06,561 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 213 transitions. [2022-11-19 07:34:06,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 27 states have internal predecessors, (28), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-19 07:34:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 213 transitions. [2022-11-19 07:34:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-19 07:34:06,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:06,564 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:34:06,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:34:06,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:34:06,769 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-19 07:34:06,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:06,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1240689408, now seen corresponding path program 1 times [2022-11-19 07:34:06,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:34:06,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967009015] [2022-11-19 07:34:06,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:06,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:34:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:07,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-19 07:34:07,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:34:07,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967009015] [2022-11-19 07:34:07,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967009015] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:34:07,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643944744] [2022-11-19 07:34:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:07,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:34:07,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:34:07,127 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:34:07,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:34:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:07,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:34:07,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:07,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-19 07:34:07,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:34:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-19 07:34:07,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643944744] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:34:07,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1030589951] [2022-11-19 07:34:07,983 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2022-11-19 07:34:07,983 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:34:07,983 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:34:07,984 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:34:07,984 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:34:21,228 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-19 07:34:21,241 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:35:40,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1030589951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:35:40,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:35:40,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [7, 5, 5] total 100 [2022-11-19 07:35:40,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95787175] [2022-11-19 07:35:40,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:35:40,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-11-19 07:35:40,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:35:40,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-11-19 07:35:40,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4494, Invalid=5606, Unknown=0, NotChecked=0, Total=10100 [2022-11-19 07:35:40,731 INFO L87 Difference]: Start difference. First operand 139 states and 213 transitions. Second operand has 91 states, 25 states have (on average 1.2) internal successors, (30), 28 states have internal predecessors, (30), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-19 07:35:45,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:35:45,918 INFO L93 Difference]: Finished difference Result 152 states and 228 transitions. [2022-11-19 07:35:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-11-19 07:35:45,919 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 25 states have (on average 1.2) internal successors, (30), 28 states have internal predecessors, (30), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 221 [2022-11-19 07:35:45,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:35:45,921 INFO L225 Difference]: With dead ends: 152 [2022-11-19 07:35:45,921 INFO L226 Difference]: Without dead ends: 150 [2022-11-19 07:35:45,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 563 SyntacticMatches, 6 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 79.5s TimeCoverageRelationStatistics Valid=4494, Invalid=5606, Unknown=0, NotChecked=0, Total=10100 [2022-11-19 07:35:45,925 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 442 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:35:45,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 152 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-19 07:35:45,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-19 07:35:45,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 141. [2022-11-19 07:35:45,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 70 states have internal predecessors, (77), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-19 07:35:45,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 215 transitions. [2022-11-19 07:35:45,985 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 215 transitions. Word has length 221 [2022-11-19 07:35:45,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:35:45,986 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 215 transitions. [2022-11-19 07:35:45,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 25 states have (on average 1.2) internal successors, (30), 28 states have internal predecessors, (30), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-19 07:35:45,987 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 215 transitions. [2022-11-19 07:35:45,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-19 07:35:45,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:45,989 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:35:45,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:35:46,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 07:35:46,195 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-19 07:35:46,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1272101512, now seen corresponding path program 1 times [2022-11-19 07:35:46,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:35:46,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423894748] [2022-11-19 07:35:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:46,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:35:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:46,531 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 10 proven. 114 refuted. 0 times theorem prover too weak. 3908 trivial. 0 not checked. [2022-11-19 07:35:46,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:35:46,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423894748] [2022-11-19 07:35:46,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423894748] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:35:46,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822941792] [2022-11-19 07:35:46,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:46,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:35:46,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:35:46,533 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:35:46,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:35:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:46,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:35:46,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:35:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-19 07:35:47,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:35:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-19 07:35:47,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822941792] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:35:47,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1563450218] [2022-11-19 07:35:47,336 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2022-11-19 07:35:47,336 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:35:47,336 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:35:47,336 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:35:47,337 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:36:00,496 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-19 07:36:00,507 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:37:18,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1563450218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:37:18,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:37:18,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [5, 5, 5] total 97 [2022-11-19 07:37:18,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364615126] [2022-11-19 07:37:18,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:37:18,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-11-19 07:37:18,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:37:18,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-11-19 07:37:18,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4316, Invalid=5190, Unknown=0, NotChecked=0, Total=9506 [2022-11-19 07:37:18,375 INFO L87 Difference]: Start difference. First operand 141 states and 215 transitions. Second operand has 91 states, 25 states have (on average 1.2) internal successors, (30), 28 states have internal predecessors, (30), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-19 07:37:23,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:37:23,197 INFO L93 Difference]: Finished difference Result 152 states and 228 transitions. [2022-11-19 07:37:23,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-11-19 07:37:23,198 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 25 states have (on average 1.2) internal successors, (30), 28 states have internal predecessors, (30), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 221 [2022-11-19 07:37:23,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:37:23,200 INFO L225 Difference]: With dead ends: 152 [2022-11-19 07:37:23,200 INFO L226 Difference]: Without dead ends: 150 [2022-11-19 07:37:23,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 565 SyntacticMatches, 6 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 77.8s TimeCoverageRelationStatistics Valid=4316, Invalid=5190, Unknown=0, NotChecked=0, Total=9506 [2022-11-19 07:37:23,202 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 345 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:37:23,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 163 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 07:37:23,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-19 07:37:23,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 141. [2022-11-19 07:37:23,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 70 states have internal predecessors, (77), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-19 07:37:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 215 transitions. [2022-11-19 07:37:23,262 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 215 transitions. Word has length 221 [2022-11-19 07:37:23,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:37:23,263 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 215 transitions. [2022-11-19 07:37:23,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 25 states have (on average 1.2) internal successors, (30), 28 states have internal predecessors, (30), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-19 07:37:23,263 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 215 transitions. [2022-11-19 07:37:23,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-19 07:37:23,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:37:23,265 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:37:23,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:37:23,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 07:37:23,471 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-19 07:37:23,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:37:23,472 INFO L85 PathProgramCache]: Analyzing trace with hash -795712420, now seen corresponding path program 1 times [2022-11-19 07:37:23,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:37:23,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367523588] [2022-11-19 07:37:23,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:23,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:37:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-19 07:37:23,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:37:23,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367523588] [2022-11-19 07:37:23,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367523588] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:37:23,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235972555] [2022-11-19 07:37:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:23,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:37:23,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:37:23,730 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:37:23,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 07:37:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:23,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 07:37:23,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:37:24,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-19 07:37:24,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:37:24,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-11-19 07:37:24,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235972555] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:37:24,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1533106062] [2022-11-19 07:37:24,591 INFO L159 IcfgInterpreter]: Started Sifa with 98 locations of interest [2022-11-19 07:37:24,591 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:37:24,591 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:37:24,592 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:37:24,592 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:37:37,831 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-19 07:37:37,842 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:39:04,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1533106062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:39:04,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:39:04,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [90] imperfect sequences [5, 9, 9] total 107 [2022-11-19 07:39:04,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768366191] [2022-11-19 07:39:04,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:39:04,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-11-19 07:39:04,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:39:04,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-11-19 07:39:04,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4872, Invalid=6684, Unknown=0, NotChecked=0, Total=11556 [2022-11-19 07:39:04,497 INFO L87 Difference]: Start difference. First operand 141 states and 215 transitions. Second operand has 92 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 29 states have internal predecessors, (32), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-19 07:39:08,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:08,973 INFO L93 Difference]: Finished difference Result 144 states and 218 transitions. [2022-11-19 07:39:08,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-11-19 07:39:08,974 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 29 states have internal predecessors, (32), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 223 [2022-11-19 07:39:08,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:08,975 INFO L225 Difference]: With dead ends: 144 [2022-11-19 07:39:08,975 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 07:39:08,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 559 SyntacticMatches, 7 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1298 ImplicationChecksByTransitivity, 86.7s TimeCoverageRelationStatistics Valid=4872, Invalid=6684, Unknown=0, NotChecked=0, Total=11556 [2022-11-19 07:39:08,977 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 446 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:08,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 151 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 07:39:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 07:39:09,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 125. [2022-11-19 07:39:09,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 51 states have (on average 1.196078431372549) internal successors, (61), 56 states have internal predecessors, (61), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-19 07:39:09,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 195 transitions. [2022-11-19 07:39:09,044 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 195 transitions. Word has length 223 [2022-11-19 07:39:09,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:09,045 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 195 transitions. [2022-11-19 07:39:09,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 29 states have internal predecessors, (32), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-19 07:39:09,046 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 195 transitions. [2022-11-19 07:39:09,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-19 07:39:09,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:09,048 INFO L195 NwaCegarLoop]: trace histogram [65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:39:09,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:39:09,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:39:09,253 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-19 07:39:09,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:09,254 INFO L85 PathProgramCache]: Analyzing trace with hash -645642737, now seen corresponding path program 1 times [2022-11-19 07:39:09,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:39:09,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481300604] [2022-11-19 07:39:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:09,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:39:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-11-19 07:39:09,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:09,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481300604] [2022-11-19 07:39:09,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481300604] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:39:09,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391066250] [2022-11-19 07:39:09,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:09,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:39:09,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:39:09,586 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:39:09,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b564892-a8f2-4f1e-9642-b7fdaec9195a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-19 07:39:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:09,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:39:09,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:39:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-11-19 07:39:10,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:39:10,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-11-19 07:39:10,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391066250] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:39:10,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1914008241] [2022-11-19 07:39:10,521 INFO L159 IcfgInterpreter]: Started Sifa with 99 locations of interest [2022-11-19 07:39:10,521 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:39:10,522 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:39:10,522 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:39:10,522 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:39:25,790 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-19 07:39:25,791 INFO L180 IcfgInterpreter]: Interpretation finished