./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-008.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-38b53e6 [2022-11-25 22:26:04,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:26:04,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:26:04,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:26:04,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:26:04,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:26:04,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:26:04,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:26:04,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:26:04,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:26:04,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:26:04,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:26:04,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:26:04,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:26:04,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:26:04,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:26:04,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:26:04,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:26:04,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:26:04,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:26:04,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:26:04,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:26:04,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:26:04,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:26:04,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:26:04,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:26:04,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:26:04,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:26:04,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:26:04,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:26:04,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:26:04,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:26:04,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:26:04,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:26:04,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:26:04,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:26:04,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:26:04,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:26:04,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:26:04,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:26:04,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:26:04,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 22:26:04,485 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:26:04,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:26:04,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:26:04,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:26:04,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:26:04,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:26:04,487 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:26:04,487 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:26:04,488 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:26:04,488 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:26:04,489 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:26:04,489 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:26:04,489 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:26:04,489 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:26:04,490 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:26:04,490 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:26:04,490 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:26:04,490 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:26:04,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:26:04,491 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:26:04,491 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:26:04,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:26:04,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:26:04,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:26:04,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:26:04,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:26:04,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:26:04,492 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:26:04,493 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:26:04,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:26:04,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:26:04,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:26:04,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:26:04,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:26:04,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:26:04,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:26:04,494 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:26:04,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:26:04,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:26:04,495 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:26:04,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:26:04,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:26:04,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:26:04,496 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_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f1a1519dc3ac954bb27ae35f40dd4ee3500f707e2df097fc14441b899353328 [2022-11-25 22:26:04,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:26:04,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:26:04,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:26:04,840 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:26:04,840 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:26:04,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/xcsp/AllInterval-008.c [2022-11-25 22:26:08,040 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:26:08,277 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:26:08,277 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/sv-benchmarks/c/xcsp/AllInterval-008.c [2022-11-25 22:26:08,284 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/data/4b4af7da7/31c0fb76e4434b309a6f53fe6670d4f7/FLAG3148e4fb8 [2022-11-25 22:26:08,304 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/data/4b4af7da7/31c0fb76e4434b309a6f53fe6670d4f7 [2022-11-25 22:26:08,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:26:08,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:26:08,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:26:08,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:26:08,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:26:08,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62aa3676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08, skipping insertion in model container [2022-11-25 22:26:08,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:26:08,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:26:08,550 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/sv-benchmarks/c/xcsp/AllInterval-008.c[4334,4347] [2022-11-25 22:26:08,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:26:08,572 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:26:08,622 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/sv-benchmarks/c/xcsp/AllInterval-008.c[4334,4347] [2022-11-25 22:26:08,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:26:08,641 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:26:08,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08 WrapperNode [2022-11-25 22:26:08,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:26:08,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:26:08,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:26:08,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:26:08,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,686 INFO L138 Inliner]: procedures = 13, calls = 93, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 234 [2022-11-25 22:26:08,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:26:08,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:26:08,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:26:08,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:26:08,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,710 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:26:08,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:26:08,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:26:08,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:26:08,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (1/1) ... [2022-11-25 22:26:08,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:26:08,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:26:08,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:26:08,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:26:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:26:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:26:08,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:26:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:26:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-25 22:26:08,814 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-25 22:26:08,883 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:26:08,885 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:26:09,363 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:26:09,390 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:26:09,391 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:26:09,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:26:09 BoogieIcfgContainer [2022-11-25 22:26:09,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:26:09,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:26:09,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:26:09,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:26:09,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:26:08" (1/3) ... [2022-11-25 22:26:09,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1215745c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:26:09, skipping insertion in model container [2022-11-25 22:26:09,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:26:08" (2/3) ... [2022-11-25 22:26:09,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1215745c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:26:09, skipping insertion in model container [2022-11-25 22:26:09,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:26:09" (3/3) ... [2022-11-25 22:26:09,404 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-008.c [2022-11-25 22:26:09,424 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:26:09,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-25 22:26:09,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:26:09,491 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;@5571f476, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:26:09,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-25 22:26:09,496 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) [2022-11-25 22:26:09,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-25 22:26:09,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:09,519 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] [2022-11-25 22:26:09,520 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)] === [2022-11-25 22:26:09,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:09,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1511556133, now seen corresponding path program 1 times [2022-11-25 22:26:09,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:09,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616407348] [2022-11-25 22:26:09,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:09,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 2 proven. 152 refuted. 0 times theorem prover too weak. 6008 trivial. 0 not checked. [2022-11-25 22:26:10,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:10,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616407348] [2022-11-25 22:26:10,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616407348] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:26:10,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399332086] [2022-11-25 22:26:10,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:10,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:26:10,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:26:10,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:26:11,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:26:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:11,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:26:11,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:26:12,018 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-25 22:26:12,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:26:12,537 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-25 22:26:12,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399332086] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:26:12,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [919540072] [2022-11-25 22:26:12,601 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2022-11-25 22:26:12,604 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:26:12,610 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:26:12,619 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:26:12,620 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:26:41,452 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-25 22:26:41,453 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:28:16,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [919540072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:16,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:28:16,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [97] imperfect sequences [4, 4, 4] total 104 [2022-11-25 22:28:16,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762977422] [2022-11-25 22:28:16,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:16,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-11-25 22:28:16,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:16,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-11-25 22:28:16,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5236, Invalid=5684, Unknown=0, NotChecked=0, Total=10920 [2022-11-25 22:28:16,154 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) [2022-11-25 22:28:18,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:18,943 INFO L93 Difference]: Finished difference Result 177 states and 268 transitions. [2022-11-25 22:28:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-11-25 22:28:18,946 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 [2022-11-25 22:28:18,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:18,959 INFO L225 Difference]: With dead ends: 177 [2022-11-25 22:28:18,959 INFO L226 Difference]: Without dead ends: 159 [2022-11-25 22:28:18,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 768 GetRequests, 664 SyntacticMatches, 1 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 94.6s TimeCoverageRelationStatistics Valid=5236, Invalid=5684, Unknown=0, NotChecked=0, Total=10920 [2022-11-25 22:28:18,967 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 567 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:18,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 216 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 22:28:18,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-25 22:28:19,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-11-25 22:28:19,129 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) [2022-11-25 22:28:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 248 transitions. [2022-11-25 22:28:19,135 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 248 transitions. Word has length 255 [2022-11-25 22:28:19,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:19,137 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 248 transitions. [2022-11-25 22:28:19,138 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) [2022-11-25 22:28:19,138 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 248 transitions. [2022-11-25 22:28:19,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-25 22:28:19,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:19,144 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] [2022-11-25 22:28:19,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:28:19,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:28:19,352 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)] === [2022-11-25 22:28:19,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:19,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1963470602, now seen corresponding path program 1 times [2022-11-25 22:28:19,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:19,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976786058] [2022-11-25 22:28:19,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:19,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:19,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6162 trivial. 0 not checked. [2022-11-25 22:28:19,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:19,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976786058] [2022-11-25 22:28:19,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976786058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:19,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:19,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:28:19,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689810865] [2022-11-25 22:28:19,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:19,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:28:19,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:19,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:28:19,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:28:19,545 INFO L87 Difference]: Start difference. First operand 159 states and 248 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2022-11-25 22:28:19,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:19,779 INFO L93 Difference]: Finished difference Result 165 states and 254 transitions. [2022-11-25 22:28:19,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:28:19,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 258 [2022-11-25 22:28:19,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:19,782 INFO L225 Difference]: With dead ends: 165 [2022-11-25 22:28:19,782 INFO L226 Difference]: Without dead ends: 158 [2022-11-25 22:28:19,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:28:19,784 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 20 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:19,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 411 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:28:19,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-25 22:28:19,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 152. [2022-11-25 22:28:19,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 65 states have internal predecessors, (71), 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) [2022-11-25 22:28:19,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 241 transitions. [2022-11-25 22:28:19,918 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 241 transitions. Word has length 258 [2022-11-25 22:28:19,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:19,920 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 241 transitions. [2022-11-25 22:28:19,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2022-11-25 22:28:19,920 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 241 transitions. [2022-11-25 22:28:19,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-25 22:28:19,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:19,925 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, 1] [2022-11-25 22:28:19,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:28:19,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-25 22:28:19,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:19,926 INFO L85 PathProgramCache]: Analyzing trace with hash 738046658, now seen corresponding path program 1 times [2022-11-25 22:28:19,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:19,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173427306] [2022-11-25 22:28:19,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:19,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:20,336 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-25 22:28:20,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:20,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173427306] [2022-11-25 22:28:20,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173427306] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:28:20,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955512101] [2022-11-25 22:28:20,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:20,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:28:20,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:20,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:28:20,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:28:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:20,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:28:20,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:28:20,890 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-25 22:28:20,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:28:21,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-25 22:28:21,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955512101] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:28:21,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1855383697] [2022-11-25 22:28:21,337 INFO L159 IcfgInterpreter]: Started Sifa with 104 locations of interest [2022-11-25 22:28:21,337 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:28:21,338 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:28:21,338 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:28:21,338 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:28:46,313 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-25 22:28:46,314 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:30:31,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1855383697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:31,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:30:31,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [99] imperfect sequences [5, 5, 5] total 105 [2022-11-25 22:30:31,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203006839] [2022-11-25 22:30:31,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:31,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-11-25 22:30:31,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:31,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-11-25 22:30:31,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5252, Invalid=5878, Unknown=0, NotChecked=0, Total=11130 [2022-11-25 22:30:31,603 INFO L87 Difference]: Start difference. First operand 152 states and 241 transitions. Second operand has 101 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 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) [2022-11-25 22:30:35,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:35,068 INFO L93 Difference]: Finished difference Result 153 states and 242 transitions. [2022-11-25 22:30:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-11-25 22:30:35,070 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 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 259 [2022-11-25 22:30:35,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:35,072 INFO L225 Difference]: With dead ends: 153 [2022-11-25 22:30:35,072 INFO L226 Difference]: Without dead ends: 152 [2022-11-25 22:30:35,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 780 GetRequests, 671 SyntacticMatches, 5 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 105.2s TimeCoverageRelationStatistics Valid=5252, Invalid=5878, Unknown=0, NotChecked=0, Total=11130 [2022-11-25 22:30:35,077 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 385 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:35,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 187 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 22:30:35,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-11-25 22:30:35,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2022-11-25 22:30:35,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 64 states have internal predecessors, (70), 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) [2022-11-25 22:30:35,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 240 transitions. [2022-11-25 22:30:35,236 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 240 transitions. Word has length 259 [2022-11-25 22:30:35,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:35,238 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 240 transitions. [2022-11-25 22:30:35,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 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) [2022-11-25 22:30:35,239 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 240 transitions. [2022-11-25 22:30:35,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-25 22:30:35,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:35,244 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] [2022-11-25 22:30:35,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 22:30:35,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:30:35,452 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-25 22:30:35,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:35,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2057289632, now seen corresponding path program 1 times [2022-11-25 22:30:35,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:35,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830829914] [2022-11-25 22:30:35,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:35,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:35,970 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-25 22:30:35,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:35,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830829914] [2022-11-25 22:30:35,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830829914] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:30:35,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049853312] [2022-11-25 22:30:35,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:35,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:30:35,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:30:35,975 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:30:35,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:30:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:36,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:30:36,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:30:36,660 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-25 22:30:36,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:30:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-25 22:30:37,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049853312] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:30:37,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [782006815] [2022-11-25 22:30:37,211 INFO L159 IcfgInterpreter]: Started Sifa with 109 locations of interest [2022-11-25 22:30:37,211 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:30:37,212 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:30:37,212 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:30:37,212 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:31:04,766 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-25 22:31:04,794 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:33:11,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [782006815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:33:11,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:33:11,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [5, 5, 5] total 109 [2022-11-25 22:33:11,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265521747] [2022-11-25 22:33:11,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:33:11,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-11-25 22:33:11,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:33:11,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-11-25 22:33:11,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5656, Invalid=6334, Unknown=0, NotChecked=0, Total=11990 [2022-11-25 22:33:11,329 INFO L87 Difference]: Start difference. First operand 151 states and 240 transitions. Second operand has 105 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 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) [2022-11-25 22:33:16,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:33:16,170 INFO L93 Difference]: Finished difference Result 161 states and 252 transitions. [2022-11-25 22:33:16,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-11-25 22:33:16,171 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 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 266 [2022-11-25 22:33:16,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:33:16,173 INFO L225 Difference]: With dead ends: 161 [2022-11-25 22:33:16,173 INFO L226 Difference]: Without dead ends: 160 [2022-11-25 22:33:16,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 687 SyntacticMatches, 6 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 126.5s TimeCoverageRelationStatistics Valid=5656, Invalid=6334, Unknown=0, NotChecked=0, Total=11990 [2022-11-25 22:33:16,178 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 290 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:33:16,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 187 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 22:33:16,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-25 22:33:16,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2022-11-25 22:33:16,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 70 states have internal predecessors, (77), 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) [2022-11-25 22:33:16,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 249 transitions. [2022-11-25 22:33:16,280 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 249 transitions. Word has length 266 [2022-11-25 22:33:16,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:33:16,281 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 249 transitions. [2022-11-25 22:33:16,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 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) [2022-11-25 22:33:16,282 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 249 transitions. [2022-11-25 22:33:16,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-25 22:33:16,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:33:16,287 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, 1] [2022-11-25 22:33:16,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:33:16,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:33:16,496 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-25 22:33:16,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:33:16,496 INFO L85 PathProgramCache]: Analyzing trace with hash 955464412, now seen corresponding path program 1 times [2022-11-25 22:33:16,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:33:16,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509214747] [2022-11-25 22:33:16,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:33:16,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:33:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:33:16,961 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-25 22:33:16,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:33:16,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509214747] [2022-11-25 22:33:16,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509214747] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:33:16,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951036649] [2022-11-25 22:33:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:33:16,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:33:16,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:33:16,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:33:16,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:33:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:33:17,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:33:17,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:33:17,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-25 22:33:17,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:33:18,027 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-25 22:33:18,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951036649] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:33:18,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1177487191] [2022-11-25 22:33:18,031 INFO L159 IcfgInterpreter]: Started Sifa with 111 locations of interest [2022-11-25 22:33:18,032 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:33:18,032 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:33:18,033 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:33:18,033 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:33:43,311 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-25 22:33:43,324 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:35:52,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1177487191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:35:52,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:35:52,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [104] imperfect sequences [5, 5, 5] total 110 [2022-11-25 22:35:52,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390405328] [2022-11-25 22:35:52,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:35:52,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-11-25 22:35:52,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:35:52,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-11-25 22:35:52,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5757, Invalid=6453, Unknown=0, NotChecked=0, Total=12210 [2022-11-25 22:35:52,271 INFO L87 Difference]: Start difference. First operand 158 states and 249 transitions. Second operand has 106 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 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) [2022-11-25 22:35:56,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:35:56,819 INFO L93 Difference]: Finished difference Result 160 states and 251 transitions. [2022-11-25 22:35:56,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-11-25 22:35:56,821 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 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 268 [2022-11-25 22:35:56,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:35:56,822 INFO L225 Difference]: With dead ends: 160 [2022-11-25 22:35:56,822 INFO L226 Difference]: Without dead ends: 159 [2022-11-25 22:35:56,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 691 SyntacticMatches, 7 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 128.9s TimeCoverageRelationStatistics Valid=5757, Invalid=6453, Unknown=0, NotChecked=0, Total=12210 [2022-11-25 22:35:56,825 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 148 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:35:56,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 178 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 22:35:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-25 22:35:56,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 150. [2022-11-25 22:35:56,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 63 states have internal predecessors, (69), 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) [2022-11-25 22:35:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 239 transitions. [2022-11-25 22:35:56,917 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 239 transitions. Word has length 268 [2022-11-25 22:35:56,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:35:56,918 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 239 transitions. [2022-11-25 22:35:56,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 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) [2022-11-25 22:35:56,918 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 239 transitions. [2022-11-25 22:35:56,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-25 22:35:56,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:35:56,923 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] [2022-11-25 22:35:56,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:35:57,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:57,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-25 22:35:57,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:35:57,131 INFO L85 PathProgramCache]: Analyzing trace with hash -887138786, now seen corresponding path program 1 times [2022-11-25 22:35:57,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:35:57,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669510424] [2022-11-25 22:35:57,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:57,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:35:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:57,497 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-25 22:35:57,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:35:57,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669510424] [2022-11-25 22:35:57,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669510424] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:35:57,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106107928] [2022-11-25 22:35:57,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:35:57,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:35:57,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:35:57,500 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:35:57,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:35:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:35:57,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:35:57,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:35:58,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-25 22:35:58,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:35:58,494 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-25 22:35:58,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106107928] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:35:58,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1561783245] [2022-11-25 22:35:58,497 INFO L159 IcfgInterpreter]: Started Sifa with 114 locations of interest [2022-11-25 22:35:58,497 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:35:58,498 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:35:58,498 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:35:58,498 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:36:23,604 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-25 22:36:23,606 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:38:32,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1561783245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:32,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:38:32,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [107] imperfect sequences [5, 5, 5] total 113 [2022-11-25 22:38:32,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810831794] [2022-11-25 22:38:32,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:32,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2022-11-25 22:38:32,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:32,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2022-11-25 22:38:32,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6060, Invalid=6822, Unknown=0, NotChecked=0, Total=12882 [2022-11-25 22:38:32,906 INFO L87 Difference]: Start difference. First operand 150 states and 239 transitions. Second operand has 109 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 29 states have internal predecessors, (31), 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) [2022-11-25 22:38:38,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:38,420 INFO L93 Difference]: Finished difference Result 168 states and 261 transitions. [2022-11-25 22:38:38,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-25 22:38:38,421 INFO L78 Accepts]: Start accepts. Automaton has has 109 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 29 states have internal predecessors, (31), 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 273 [2022-11-25 22:38:38,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:38,422 INFO L225 Difference]: With dead ends: 168 [2022-11-25 22:38:38,423 INFO L226 Difference]: Without dead ends: 167 [2022-11-25 22:38:38,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 703 SyntacticMatches, 7 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 129.3s TimeCoverageRelationStatistics Valid=6060, Invalid=6822, Unknown=0, NotChecked=0, Total=12882 [2022-11-25 22:38:38,426 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 209 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:38,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 176 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-25 22:38:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-25 22:38:38,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 162. [2022-11-25 22:38:38,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 69 states have (on average 1.173913043478261) internal successors, (81), 73 states have internal predecessors, (81), 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) [2022-11-25 22:38:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 255 transitions. [2022-11-25 22:38:38,516 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 255 transitions. Word has length 273 [2022-11-25 22:38:38,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:38,517 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 255 transitions. [2022-11-25 22:38:38,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 29 states have internal predecessors, (31), 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) [2022-11-25 22:38:38,518 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 255 transitions. [2022-11-25 22:38:38,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-25 22:38:38,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:38,520 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, 1] [2022-11-25 22:38:38,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:38:38,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:38,721 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-25 22:38:38,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:38,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1578451238, now seen corresponding path program 1 times [2022-11-25 22:38:38,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:38,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389586681] [2022-11-25 22:38:38,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:38,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-25 22:38:39,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:39,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389586681] [2022-11-25 22:38:39,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389586681] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:38:39,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620431058] [2022-11-25 22:38:39,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:39,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:39,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:39,071 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:38:39,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87dd5709-bc20-4d1e-9316-7ebc45e89e22/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 22:38:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:39,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:38:39,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:39,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-25 22:38:39,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:38:40,074 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-25 22:38:40,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620431058] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:38:40,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [922998348] [2022-11-25 22:38:40,077 INFO L159 IcfgInterpreter]: Started Sifa with 116 locations of interest [2022-11-25 22:38:40,077 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:38:40,078 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:38:40,078 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:38:40,078 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:39:05,136 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-25 22:39:05,137 INFO L180 IcfgInterpreter]: Interpretation finished