./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-008.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_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/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_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-008.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/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_661503c5-1974-4695-a328-f9c4cee8fd7b/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 8f1a1519dc3ac954bb27ae35f40dd4ee3500f707e2df097fc14441b899353328 --- 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 07:11:50,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:11:50,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:11:50,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:11:50,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:11:50,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:11:50,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:11:50,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:11:50,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:11:50,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:11:50,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:11:50,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:11:50,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:11:50,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:11:50,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:11:50,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:11:50,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:11:50,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:11:50,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:11:50,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:11:50,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:11:50,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:11:50,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:11:50,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:11:50,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:11:50,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:11:50,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:11:50,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:11:50,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:11:50,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:11:50,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:11:50,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:11:50,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:11:50,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:11:50,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:11:50,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:11:50,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:11:50,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:11:50,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:11:50,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:11:50,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:11:50,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:11:50,545 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:11:50,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:11:50,546 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:11:50,546 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:11:50,547 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:11:50,547 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:11:50,548 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:11:50,548 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:11:50,548 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:11:50,548 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:11:50,549 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:11:50,549 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:11:50,549 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:11:50,549 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:11:50,550 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:11:50,550 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:11:50,550 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:11:50,550 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:11:50,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:11:50,552 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:11:50,552 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:11:50,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:11:50,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:11:50,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:11:50,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:11:50,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:11:50,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:11:50,554 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:11:50,554 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:11:50,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:11:50,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:11:50,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:11:50,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:11:50,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:11:50,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:11:50,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:11:50,556 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:11:50,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:11:50,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:11:50,557 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:11:50,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:11:50,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:11:50,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:11:50,558 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_661503c5-1974-4695-a328-f9c4cee8fd7b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f1a1519dc3ac954bb27ae35f40dd4ee3500f707e2df097fc14441b899353328 [2022-11-19 07:11:50,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:11:50,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:11:50,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:11:50,855 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:11:50,856 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:11:50,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/xcsp/AllInterval-008.c [2022-11-19 07:11:50,933 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/data/ca02c01c2/edfc756587f24e5997498bd393209934/FLAG8a382e1c5 [2022-11-19 07:11:51,387 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:11:51,388 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/sv-benchmarks/c/xcsp/AllInterval-008.c [2022-11-19 07:11:51,395 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/data/ca02c01c2/edfc756587f24e5997498bd393209934/FLAG8a382e1c5 [2022-11-19 07:11:51,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/data/ca02c01c2/edfc756587f24e5997498bd393209934 [2022-11-19 07:11:51,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:11:51,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:11:51,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:11:51,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:11:51,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:11:51,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49affa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51, skipping insertion in model container [2022-11-19 07:11:51,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:11:51,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:11:51,702 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_661503c5-1974-4695-a328-f9c4cee8fd7b/sv-benchmarks/c/xcsp/AllInterval-008.c[4334,4347] [2022-11-19 07:11:51,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:11:51,721 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:11:51,782 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_661503c5-1974-4695-a328-f9c4cee8fd7b/sv-benchmarks/c/xcsp/AllInterval-008.c[4334,4347] [2022-11-19 07:11:51,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:11:51,798 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:11:51,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51 WrapperNode [2022-11-19 07:11:51,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:11:51,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:11:51,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:11:51,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:11:51,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,878 INFO L138 Inliner]: procedures = 13, calls = 93, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 234 [2022-11-19 07:11:51,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:11:51,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:11:51,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:11:51,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:11:51,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,942 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:11:51,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:11:51,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:11:51,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:11:51,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (1/1) ... [2022-11-19 07:11:51,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:11:51,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:11:52,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:11:52,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:11:52,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:11:52,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:11:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:11:52,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:11:52,047 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-19 07:11:52,047 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-19 07:11:52,123 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:11:52,125 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:11:52,602 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:11:52,628 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:11:52,629 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:11:52,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:11:52 BoogieIcfgContainer [2022-11-19 07:11:52,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:11:52,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:11:52,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:11:52,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:11:52,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:11:51" (1/3) ... [2022-11-19 07:11:52,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a19f5f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:11:52, skipping insertion in model container [2022-11-19 07:11:52,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:11:51" (2/3) ... [2022-11-19 07:11:52,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a19f5f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:11:52, skipping insertion in model container [2022-11-19 07:11:52,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:11:52" (3/3) ... [2022-11-19 07:11:52,642 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-008.c [2022-11-19 07:11:52,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:11:52,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-19 07:11:52,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:11:52,765 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;@28bbb0f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:11:52,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-19 07:11:52,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 89 states have internal predecessors, (96), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-19 07:11:52,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-19 07:11:52,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:11:52,794 INFO L195 NwaCegarLoop]: trace histogram [79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:11:52,795 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-19 07:11:52,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:11:52,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1511556133, now seen corresponding path program 1 times [2022-11-19 07:11:52,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:11:52,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498923862] [2022-11-19 07:11:52,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:52,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:11:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:54,142 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-19 07:11:54,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:11:54,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498923862] [2022-11-19 07:11:54,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498923862] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:11:54,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009473778] [2022-11-19 07:11:54,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:11:54,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:11:54,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:11:54,148 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:11:54,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:11:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:11:54,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:11:54,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:11:55,168 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-19 07:11:55,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:11:55,691 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-19 07:11:55,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009473778] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:11:55,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [890395091] [2022-11-19 07:11:55,742 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2022-11-19 07:11:55,742 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:11:55,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:11:55,756 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:11:55,757 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:12:26,876 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-19 07:12:26,879 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:13:59,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [890395091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:13:59,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:13:59,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [97] imperfect sequences [5, 4, 4] total 104 [2022-11-19 07:13:59,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058955757] [2022-11-19 07:13:59,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:13:59,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-11-19 07:13:59,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:13:59,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-11-19 07:13:59,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5238, Invalid=5682, Unknown=0, NotChecked=0, Total=10920 [2022-11-19 07:13:59,315 INFO L87 Difference]: Start difference. First operand has 177 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 89 states have internal predecessors, (96), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 99 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-19 07:14:02,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:14:02,748 INFO L93 Difference]: Finished difference Result 177 states and 268 transitions. [2022-11-19 07:14:02,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-11-19 07:14:02,757 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Word has length 255 [2022-11-19 07:14:02,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:14:02,766 INFO L225 Difference]: With dead ends: 177 [2022-11-19 07:14:02,766 INFO L226 Difference]: Without dead ends: 159 [2022-11-19 07:14:02,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 768 GetRequests, 663 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 92.4s TimeCoverageRelationStatistics Valid=5238, Invalid=5682, Unknown=0, NotChecked=0, Total=10920 [2022-11-19 07:14:02,776 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 644 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:14:02,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 216 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 07:14:02,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-19 07:14:02,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-11-19 07:14:02,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 72 states have internal predecessors, (78), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-19 07:14:02,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 248 transitions. [2022-11-19 07:14:02,977 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 248 transitions. Word has length 255 [2022-11-19 07:14:02,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:14:02,981 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 248 transitions. [2022-11-19 07:14:02,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-19 07:14:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 248 transitions. [2022-11-19 07:14:02,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-19 07:14:02,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:14:02,989 INFO L195 NwaCegarLoop]: trace histogram [79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:14:03,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:14:03,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 07:14:03,190 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-19 07:14:03,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:14:03,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1963470602, now seen corresponding path program 1 times [2022-11-19 07:14:03,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:14:03,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484781881] [2022-11-19 07:14:03,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:03,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:14:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:14:03,637 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-19 07:14:03,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:14:03,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484781881] [2022-11-19 07:14:03,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484781881] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:14:03,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216294781] [2022-11-19 07:14:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:14:03,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:14:03,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:14:03,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:14:03,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:14:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:14:03,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:14:03,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:14:04,210 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-19 07:14:04,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:14:04,667 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-19 07:14:04,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216294781] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:14:04,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [637210411] [2022-11-19 07:14:04,679 INFO L159 IcfgInterpreter]: Started Sifa with 103 locations of interest [2022-11-19 07:14:04,680 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:14:04,680 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:14:04,681 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:14:04,681 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:14:28,954 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-19 07:14:28,955 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:16:09,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [637210411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:16:09,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:16:09,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [99] imperfect sequences [5, 5, 5] total 105 [2022-11-19 07:16:09,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505958419] [2022-11-19 07:16:09,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:16:09,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-11-19 07:16:09,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:16:09,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-11-19 07:16:09,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5252, Invalid=5878, Unknown=0, NotChecked=0, Total=11130 [2022-11-19 07:16:09,010 INFO L87 Difference]: Start difference. First operand 159 states and 248 transitions. Second operand has 101 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-19 07:16:13,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:16:13,136 INFO L93 Difference]: Finished difference Result 160 states and 249 transitions. [2022-11-19 07:16:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-11-19 07:16:13,137 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Word has length 258 [2022-11-19 07:16:13,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:16:13,140 INFO L225 Difference]: With dead ends: 160 [2022-11-19 07:16:13,140 INFO L226 Difference]: Without dead ends: 158 [2022-11-19 07:16:13,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 669 SyntacticMatches, 4 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 100.0s TimeCoverageRelationStatistics Valid=5252, Invalid=5878, Unknown=0, NotChecked=0, Total=11130 [2022-11-19 07:16:13,145 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 490 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:16:13,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 199 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-19 07:16:13,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-19 07:16:13,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2022-11-19 07:16:13,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 70 states have internal predecessors, (76), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-19 07:16:13,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 246 transitions. [2022-11-19 07:16:13,246 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 246 transitions. Word has length 258 [2022-11-19 07:16:13,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:16:13,247 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 246 transitions. [2022-11-19 07:16:13,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-19 07:16:13,248 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 246 transitions. [2022-11-19 07:16:13,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-19 07:16:13,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:16:13,254 INFO L195 NwaCegarLoop]: trace histogram [80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:13,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:16:13,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:16:13,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-19 07:16:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:16:13,461 INFO L85 PathProgramCache]: Analyzing trace with hash -626372484, now seen corresponding path program 1 times [2022-11-19 07:16:13,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:16:13,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989867787] [2022-11-19 07:16:13,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:16:13,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:16:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:16:13,932 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 6 proven. 150 refuted. 0 times theorem prover too weak. 6164 trivial. 0 not checked. [2022-11-19 07:16:13,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:16:13,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989867787] [2022-11-19 07:16:13,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989867787] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:16:13,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037276544] [2022-11-19 07:16:13,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:16:13,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:16:13,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:16:13,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:16:13,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:16:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:16:14,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:16:14,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:16:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-19 07:16:14,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:16:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-19 07:16:14,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037276544] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:16:14,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1495268538] [2022-11-19 07:16:14,863 INFO L159 IcfgInterpreter]: Started Sifa with 108 locations of interest [2022-11-19 07:16:14,864 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:16:14,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:16:14,865 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:16:14,866 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:16:39,966 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-19 07:16:39,984 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:18:32,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1495268538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:32,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:18:32,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [5, 5, 5] total 111 [2022-11-19 07:18:32,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129106075] [2022-11-19 07:18:32,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:32,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-11-19 07:18:32,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:32,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-11-19 07:18:32,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5761, Invalid=6671, Unknown=0, NotChecked=0, Total=12432 [2022-11-19 07:18:32,539 INFO L87 Difference]: Start difference. First operand 157 states and 246 transitions. Second operand has 105 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-19 07:18:37,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:37,954 INFO L93 Difference]: Finished difference Result 168 states and 259 transitions. [2022-11-19 07:18:37,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-11-19 07:18:37,955 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Word has length 265 [2022-11-19 07:18:37,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:37,957 INFO L225 Difference]: With dead ends: 168 [2022-11-19 07:18:37,957 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 07:18:37,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 685 SyntacticMatches, 4 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 112.5s TimeCoverageRelationStatistics Valid=5761, Invalid=6671, Unknown=0, NotChecked=0, Total=12432 [2022-11-19 07:18:37,962 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 477 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:37,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 199 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-19 07:18:37,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 07:18:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2022-11-19 07:18:38,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 76 states have internal predecessors, (83), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-19 07:18:38,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 255 transitions. [2022-11-19 07:18:38,058 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 255 transitions. Word has length 265 [2022-11-19 07:18:38,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:38,060 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 255 transitions. [2022-11-19 07:18:38,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-19 07:18:38,060 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 255 transitions. [2022-11-19 07:18:38,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-19 07:18:38,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:38,065 INFO L195 NwaCegarLoop]: trace histogram [80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:18:38,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:18:38,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:38,272 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-19 07:18:38,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:38,273 INFO L85 PathProgramCache]: Analyzing trace with hash 446463424, now seen corresponding path program 1 times [2022-11-19 07:18:38,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:38,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105925988] [2022-11-19 07:18:38,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:38,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-19 07:18:38,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:38,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105925988] [2022-11-19 07:18:38,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105925988] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:18:38,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120572708] [2022-11-19 07:18:38,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:38,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:38,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:38,681 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:18:38,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:18:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:38,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:18:38,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:18:39,222 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-19 07:18:39,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:18:39,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-19 07:18:39,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120572708] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:18:39,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [483072442] [2022-11-19 07:18:39,579 INFO L159 IcfgInterpreter]: Started Sifa with 110 locations of interest [2022-11-19 07:18:39,580 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:18:39,580 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:18:39,581 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:18:39,581 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:19:04,218 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-19 07:19:04,230 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:21:03,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [483072442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:03,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:21:03,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [104] imperfect sequences [5, 5, 5] total 110 [2022-11-19 07:21:03,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089709463] [2022-11-19 07:21:03,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:03,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-11-19 07:21:03,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:03,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-11-19 07:21:03,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5757, Invalid=6453, Unknown=0, NotChecked=0, Total=12210 [2022-11-19 07:21:03,326 INFO L87 Difference]: Start difference. First operand 164 states and 255 transitions. Second operand has 106 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-19 07:21:08,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:08,576 INFO L93 Difference]: Finished difference Result 166 states and 257 transitions. [2022-11-19 07:21:08,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-11-19 07:21:08,578 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Word has length 267 [2022-11-19 07:21:08,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:08,579 INFO L225 Difference]: With dead ends: 166 [2022-11-19 07:21:08,580 INFO L226 Difference]: Without dead ends: 164 [2022-11-19 07:21:08,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 689 SyntacticMatches, 6 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 119.0s TimeCoverageRelationStatistics Valid=5757, Invalid=6453, Unknown=0, NotChecked=0, Total=12210 [2022-11-19 07:21:08,583 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 406 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:08,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 198 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-19 07:21:08,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-19 07:21:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 155. [2022-11-19 07:21:08,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 59 states have (on average 1.2542372881355932) internal successors, (74), 68 states have internal predecessors, (74), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-19 07:21:08,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 244 transitions. [2022-11-19 07:21:08,675 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 244 transitions. Word has length 267 [2022-11-19 07:21:08,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:08,676 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 244 transitions. [2022-11-19 07:21:08,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-19 07:21:08,676 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 244 transitions. [2022-11-19 07:21:08,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-19 07:21:08,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:08,681 INFO L195 NwaCegarLoop]: trace histogram [81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:21:08,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:21:08,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:08,887 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-19 07:21:08,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:08,887 INFO L85 PathProgramCache]: Analyzing trace with hash -305712050, now seen corresponding path program 1 times [2022-11-19 07:21:08,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:08,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782014721] [2022-11-19 07:21:08,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:08,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-19 07:21:09,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:09,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782014721] [2022-11-19 07:21:09,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782014721] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:21:09,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893442593] [2022-11-19 07:21:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:09,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:09,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:09,292 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:21:09,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:21:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:09,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:21:09,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-19 07:21:09,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:21:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-19 07:21:10,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893442593] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:21:10,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1550576417] [2022-11-19 07:21:10,205 INFO L159 IcfgInterpreter]: Started Sifa with 113 locations of interest [2022-11-19 07:21:10,205 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:21:10,206 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:21:10,206 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:21:10,206 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:21:36,251 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-19 07:21:36,252 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:23:44,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1550576417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:23:44,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:23:44,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [107] imperfect sequences [5, 5, 5] total 113 [2022-11-19 07:23:44,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317638323] [2022-11-19 07:23:44,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:23:44,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2022-11-19 07:23:44,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:23:44,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2022-11-19 07:23:44,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6060, Invalid=6822, Unknown=0, NotChecked=0, Total=12882 [2022-11-19 07:23:44,408 INFO L87 Difference]: Start difference. First operand 155 states and 244 transitions. Second operand has 109 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-11-19 07:23:50,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:50,285 INFO L93 Difference]: Finished difference Result 174 states and 267 transitions. [2022-11-19 07:23:50,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-19 07:23:50,287 INFO L78 Accepts]: Start accepts. Automaton has has 109 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Word has length 272 [2022-11-19 07:23:50,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:50,289 INFO L225 Difference]: With dead ends: 174 [2022-11-19 07:23:50,289 INFO L226 Difference]: Without dead ends: 172 [2022-11-19 07:23:50,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 819 GetRequests, 701 SyntacticMatches, 6 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 128.1s TimeCoverageRelationStatistics Valid=6060, Invalid=6822, Unknown=0, NotChecked=0, Total=12882 [2022-11-19 07:23:50,292 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 380 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:50,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 185 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-19 07:23:50,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-19 07:23:50,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 167. [2022-11-19 07:23:50,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 78 states have internal predecessors, (86), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2022-11-19 07:23:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 260 transitions. [2022-11-19 07:23:50,428 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 260 transitions. Word has length 272 [2022-11-19 07:23:50,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:50,432 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 260 transitions. [2022-11-19 07:23:50,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-11-19 07:23:50,433 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 260 transitions. [2022-11-19 07:23:50,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-19 07:23:50,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:50,438 INFO L195 NwaCegarLoop]: trace histogram [81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:23:50,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:50,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:23:50,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-19 07:23:50,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:50,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1473102866, now seen corresponding path program 1 times [2022-11-19 07:23:50,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:23:50,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943695174] [2022-11-19 07:23:50,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:50,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:23:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-19 07:23:51,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:23:51,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943695174] [2022-11-19 07:23:51,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943695174] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:23:51,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032436528] [2022-11-19 07:23:51,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:51,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:23:51,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:23:51,046 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:23:51,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661503c5-1974-4695-a328-f9c4cee8fd7b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:23:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:23:51,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:23:51,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:51,659 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-19 07:23:51,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:23:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-19 07:23:52,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032436528] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:23:52,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [677838703] [2022-11-19 07:23:52,108 INFO L159 IcfgInterpreter]: Started Sifa with 115 locations of interest [2022-11-19 07:23:52,108 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:23:52,109 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:23:52,109 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:23:52,109 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:24:18,005 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-19 07:24:18,006 INFO L180 IcfgInterpreter]: Interpretation finished