./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebdf8b0d6633d593d56778eaf5218135ab2be92cae14e75cdda2462494f96410 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:02:37,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:02:37,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:02:37,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:02:37,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:02:37,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:02:37,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:02:37,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:02:37,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:02:37,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:02:37,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:02:37,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:02:37,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:02:37,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:02:37,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:02:37,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:02:37,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:02:37,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:02:37,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:02:37,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:02:37,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:02:37,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:02:37,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:02:37,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:02:37,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:02:37,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:02:37,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:02:37,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:02:37,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:02:37,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:02:37,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:02:37,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:02:37,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:02:37,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:02:37,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:02:37,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:02:37,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:02:37,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:02:37,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:02:37,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:02:37,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:02:37,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 07:02:37,497 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:02:37,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:02:37,497 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:02:37,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:02:37,503 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:02:37,503 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:02:37,503 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:02:37,503 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:02:37,504 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:02:37,504 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:02:37,504 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:02:37,504 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:02:37,504 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:02:37,504 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:02:37,504 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:02:37,504 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:02:37,505 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:02:37,505 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:02:37,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:02:37,505 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:02:37,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:02:37,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:02:37,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:02:37,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:02:37,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:02:37,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:02:37,506 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:02:37,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:02:37,506 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:02:37,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:02:37,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:02:37,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:02:37,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:02:37,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:02:37,507 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:02:37,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:02:37,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:02:37,508 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:02:37,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:02:37,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:02:37,508 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:02:37,508 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_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebdf8b0d6633d593d56778eaf5218135ab2be92cae14e75cdda2462494f96410 [2022-12-14 07:02:37,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:02:37,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:02:37,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:02:37,708 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:02:37,709 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:02:37,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c [2022-12-14 07:02:40,355 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:02:40,519 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:02:40,520 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c [2022-12-14 07:02:40,524 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/data/17742e795/117a6c6baee845bda0082463a401026c/FLAG5bc202312 [2022-12-14 07:02:40,535 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/data/17742e795/117a6c6baee845bda0082463a401026c [2022-12-14 07:02:40,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:02:40,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:02:40,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:02:40,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:02:40,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:02:40,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34abe8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40, skipping insertion in model container [2022-12-14 07:02:40,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:02:40,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:02:40,662 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_2f571261-f2e9-4d81-aef1-4255bff8ea27/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c[490,503] [2022-12-14 07:02:40,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:02:40,682 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:02:40,691 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_2f571261-f2e9-4d81-aef1-4255bff8ea27/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound2.c[490,503] [2022-12-14 07:02:40,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:02:40,707 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:02:40,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40 WrapperNode [2022-12-14 07:02:40,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:02:40,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:02:40,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:02:40,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:02:40,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,738 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2022-12-14 07:02:40,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:02:40,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:02:40,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:02:40,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:02:40,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,758 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:02:40,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:02:40,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:02:40,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:02:40,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (1/1) ... [2022-12-14 07:02:40,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:02:40,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:02:40,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:02:40,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:02:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:02:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 07:02:40,823 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 07:02:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:02:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:02:40,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:02:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 07:02:40,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 07:02:40,882 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:02:40,884 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:02:40,990 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:02:41,007 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:02:41,007 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 07:02:41,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:02:41 BoogieIcfgContainer [2022-12-14 07:02:41,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:02:41,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:02:41,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:02:41,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:02:41,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:02:40" (1/3) ... [2022-12-14 07:02:41,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15babf91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:02:41, skipping insertion in model container [2022-12-14 07:02:41,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:02:40" (2/3) ... [2022-12-14 07:02:41,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15babf91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:02:41, skipping insertion in model container [2022-12-14 07:02:41,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:02:41" (3/3) ... [2022-12-14 07:02:41,017 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound2.c [2022-12-14 07:02:41,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:02:41,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:02:41,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:02:41,075 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;@25825d6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:02:41,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:02:41,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 07:02:41,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 07:02:41,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:41,086 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:02:41,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:02:41,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:41,091 INFO L85 PathProgramCache]: Analyzing trace with hash 966807424, now seen corresponding path program 1 times [2022-12-14 07:02:41,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:41,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517541580] [2022-12-14 07:02:41,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:41,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:41,200 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:02:41,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870117030] [2022-12-14 07:02:41,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:41,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:41,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:02:41,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:02:41,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:02:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:41,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 07:02:41,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:02:41,313 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 07:02:41,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:02:41,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:02:41,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517541580] [2022-12-14 07:02:41,314 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:02:41,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870117030] [2022-12-14 07:02:41,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870117030] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:02:41,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:02:41,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:02:41,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719553171] [2022-12-14 07:02:41,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:02:41,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:02:41,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:02:41,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:02:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:02:41,347 INFO L87 Difference]: Start difference. First operand has 30 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-14 07:02:41,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:02:41,378 INFO L93 Difference]: Finished difference Result 49 states and 78 transitions. [2022-12-14 07:02:41,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:02:41,381 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 26 [2022-12-14 07:02:41,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:02:41,388 INFO L225 Difference]: With dead ends: 49 [2022-12-14 07:02:41,388 INFO L226 Difference]: Without dead ends: 28 [2022-12-14 07:02:41,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:02:41,396 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:02:41,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:02:41,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-14 07:02:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-12-14 07:02:41,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 07:02:41,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 39 transitions. [2022-12-14 07:02:41,434 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 39 transitions. Word has length 26 [2022-12-14 07:02:41,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:02:41,435 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 39 transitions. [2022-12-14 07:02:41,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-14 07:02:41,436 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2022-12-14 07:02:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 07:02:41,438 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:41,438 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:02:41,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:02:41,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 07:02:41,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:02:41,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:41,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1643993843, now seen corresponding path program 1 times [2022-12-14 07:02:41,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:41,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325177375] [2022-12-14 07:02:41,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:41,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:41,663 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:02:41,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [806201648] [2022-12-14 07:02:41,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:41,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:41,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:02:41,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:02:41,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:02:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:41,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 07:02:41,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:02:41,800 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-14 07:02:41,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:02:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-14 07:02:41,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:02:41,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325177375] [2022-12-14 07:02:41,870 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:02:41,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806201648] [2022-12-14 07:02:41,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806201648] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:02:41,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [718190575] [2022-12-14 07:02:41,893 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-12-14 07:02:41,893 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:02:41,898 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:02:41,903 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:02:41,903 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:02:42,525 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:02:42,545 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:02:43,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [718190575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:02:43,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:02:43,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5, 5] total 14 [2022-12-14 07:02:43,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480031084] [2022-12-14 07:02:43,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:02:43,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 07:02:43,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:02:43,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 07:02:43,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-12-14 07:02:43,266 INFO L87 Difference]: Start difference. First operand 28 states and 39 transitions. Second operand has 11 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-14 07:02:43,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:02:43,420 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2022-12-14 07:02:43,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 07:02:43,421 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 27 [2022-12-14 07:02:43,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:02:43,422 INFO L225 Difference]: With dead ends: 38 [2022-12-14 07:02:43,422 INFO L226 Difference]: Without dead ends: 30 [2022-12-14 07:02:43,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-12-14 07:02:43,423 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 37 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:02:43,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 48 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:02:43,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-14 07:02:43,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-14 07:02:43,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 07:02:43,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2022-12-14 07:02:43,438 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 27 [2022-12-14 07:02:43,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:02:43,439 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2022-12-14 07:02:43,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-14 07:02:43,439 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2022-12-14 07:02:43,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 07:02:43,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:43,440 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:02:43,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 07:02:43,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:43,641 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:02:43,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:43,641 INFO L85 PathProgramCache]: Analyzing trace with hash -575116102, now seen corresponding path program 1 times [2022-12-14 07:02:43,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:43,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462736262] [2022-12-14 07:02:43,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:43,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:43,654 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:02:43,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1619099862] [2022-12-14 07:02:43,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:43,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:43,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:02:43,656 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:02:43,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:02:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:43,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 07:02:43,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:02:43,745 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-14 07:02:43,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:02:43,793 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 07:02:43,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:02:43,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462736262] [2022-12-14 07:02:43,793 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:02:43,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619099862] [2022-12-14 07:02:43,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619099862] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 07:02:43,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:02:43,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-12-14 07:02:43,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977416023] [2022-12-14 07:02:43,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:02:43,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:02:43,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:02:43,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:02:43,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-14 07:02:43,795 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-14 07:02:43,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:02:43,852 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-12-14 07:02:43,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:02:43,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 28 [2022-12-14 07:02:43,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:02:43,853 INFO L225 Difference]: With dead ends: 36 [2022-12-14 07:02:43,854 INFO L226 Difference]: Without dead ends: 34 [2022-12-14 07:02:43,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-14 07:02:43,855 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:02:43,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 101 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:02:43,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-14 07:02:43,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-12-14 07:02:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 07:02:43,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2022-12-14 07:02:43,869 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 28 [2022-12-14 07:02:43,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:02:43,870 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2022-12-14 07:02:43,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-14 07:02:43,870 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2022-12-14 07:02:43,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 07:02:43,871 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:43,871 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:02:43,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:02:44,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:44,073 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:02:44,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:44,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1810277145, now seen corresponding path program 1 times [2022-12-14 07:02:44,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:44,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347514629] [2022-12-14 07:02:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:44,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:44,117 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:02:44,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [612514571] [2022-12-14 07:02:44,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:44,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:44,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:02:44,121 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:02:44,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:02:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:44,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-14 07:02:44,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:02:44,419 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:02:44,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:02:44,524 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-14 07:02:44,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:02:44,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347514629] [2022-12-14 07:02:44,525 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:02:44,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612514571] [2022-12-14 07:02:44,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612514571] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 07:02:44,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:02:44,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2022-12-14 07:02:44,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365546099] [2022-12-14 07:02:44,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:02:44,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:02:44,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:02:44,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:02:44,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-12-14 07:02:44,527 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 07:02:44,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:02:44,586 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2022-12-14 07:02:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:02:44,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 33 [2022-12-14 07:02:44,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:02:44,588 INFO L225 Difference]: With dead ends: 47 [2022-12-14 07:02:44,588 INFO L226 Difference]: Without dead ends: 45 [2022-12-14 07:02:44,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-12-14 07:02:44,590 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:02:44,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 122 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:02:44,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-12-14 07:02:44,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2022-12-14 07:02:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 07:02:44,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2022-12-14 07:02:44,607 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 33 [2022-12-14 07:02:44,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:02:44,607 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2022-12-14 07:02:44,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 07:02:44,607 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2022-12-14 07:02:44,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 07:02:44,608 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:44,608 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:02:44,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:02:44,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:44,809 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:02:44,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:44,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1313498982, now seen corresponding path program 1 times [2022-12-14 07:02:44,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:44,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575384431] [2022-12-14 07:02:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:44,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:44,825 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:02:44,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1919281558] [2022-12-14 07:02:44,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:44,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:44,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:02:44,827 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:02:44,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:02:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:44,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 07:02:44,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:02:45,220 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:02:45,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:02:45,340 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 07:02:45,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:02:45,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575384431] [2022-12-14 07:02:45,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:02:45,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919281558] [2022-12-14 07:02:45,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919281558] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 07:02:45,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:02:45,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 15 [2022-12-14 07:02:45,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793026770] [2022-12-14 07:02:45,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:02:45,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:02:45,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:02:45,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:02:45,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-12-14 07:02:45,343 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-14 07:02:45,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:02:45,416 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2022-12-14 07:02:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:02:45,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 38 [2022-12-14 07:02:45,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:02:45,417 INFO L225 Difference]: With dead ends: 51 [2022-12-14 07:02:45,417 INFO L226 Difference]: Without dead ends: 49 [2022-12-14 07:02:45,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-12-14 07:02:45,419 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 7 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:02:45,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 128 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:02:45,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-14 07:02:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2022-12-14 07:02:45,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 27 states have internal predecessors, (30), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 07:02:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2022-12-14 07:02:45,434 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 38 [2022-12-14 07:02:45,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:02:45,434 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2022-12-14 07:02:45,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-14 07:02:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2022-12-14 07:02:45,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 07:02:45,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:45,435 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:02:45,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 07:02:45,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:45,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:02:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:45,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1793667961, now seen corresponding path program 1 times [2022-12-14 07:02:45,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:45,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737061971] [2022-12-14 07:02:45,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:45,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:45,685 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:02:45,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [438041674] [2022-12-14 07:02:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:45,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:45,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:02:45,690 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:02:45,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 07:02:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:45,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 07:02:45,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:02:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-14 07:02:45,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:02:46,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:02:46,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737061971] [2022-12-14 07:02:46,046 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:02:46,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438041674] [2022-12-14 07:02:46,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438041674] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:02:46,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [130159020] [2022-12-14 07:02:46,048 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-12-14 07:02:46,048 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:02:46,048 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:02:46,049 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:02:46,049 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:02:46,737 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-12-14 07:02:46,743 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:02:46,754 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:02:47,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [130159020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:02:47,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:02:47,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 22 [2022-12-14 07:02:47,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102388496] [2022-12-14 07:02:47,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:02:47,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 07:02:47,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:02:47,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 07:02:47,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2022-12-14 07:02:47,978 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2022-12-14 07:02:48,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:02:48,220 INFO L93 Difference]: Finished difference Result 73 states and 87 transitions. [2022-12-14 07:02:48,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 07:02:48,220 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 43 [2022-12-14 07:02:48,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:02:48,221 INFO L225 Difference]: With dead ends: 73 [2022-12-14 07:02:48,221 INFO L226 Difference]: Without dead ends: 71 [2022-12-14 07:02:48,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 54 SyntacticMatches, 13 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2022-12-14 07:02:48,222 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:02:48,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 50 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 07:02:48,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-12-14 07:02:48,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2022-12-14 07:02:48,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 41 states have internal predecessors, (43), 20 states have call successors, (20), 9 states have call predecessors, (20), 9 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-14 07:02:48,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 82 transitions. [2022-12-14 07:02:48,242 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 82 transitions. Word has length 43 [2022-12-14 07:02:48,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:02:48,243 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 82 transitions. [2022-12-14 07:02:48,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2022-12-14 07:02:48,243 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 82 transitions. [2022-12-14 07:02:48,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 07:02:48,245 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:48,245 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:02:48,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-14 07:02:48,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:48,446 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:02:48,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:48,446 INFO L85 PathProgramCache]: Analyzing trace with hash 434944611, now seen corresponding path program 1 times [2022-12-14 07:02:48,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:48,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024239772] [2022-12-14 07:02:48,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:48,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:48,462 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:02:48,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [747828250] [2022-12-14 07:02:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:48,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:48,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:02:48,464 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:02:48,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 07:02:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:48,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 07:02:48,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:02:48,537 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-12-14 07:02:48,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:02:48,583 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-12-14 07:02:48,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:02:48,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024239772] [2022-12-14 07:02:48,584 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:02:48,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747828250] [2022-12-14 07:02:48,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747828250] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:02:48,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [769718979] [2022-12-14 07:02:48,585 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-12-14 07:02:48,585 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:02:48,586 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:02:48,586 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:02:48,586 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:02:56,844 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-12-14 07:02:56,847 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:02:56,857 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:02:59,466 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2210#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 07:02:59,466 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:02:59,466 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:02:59,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2022-12-14 07:02:59,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319230969] [2022-12-14 07:02:59,467 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:02:59,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:02:59,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:02:59,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:02:59,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2022-12-14 07:02:59,469 INFO L87 Difference]: Start difference. First operand 69 states and 82 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 5 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-12-14 07:02:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:02:59,642 INFO L93 Difference]: Finished difference Result 111 states and 148 transitions. [2022-12-14 07:02:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 07:02:59,642 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 5 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 52 [2022-12-14 07:02:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:02:59,643 INFO L225 Difference]: With dead ends: 111 [2022-12-14 07:02:59,643 INFO L226 Difference]: Without dead ends: 103 [2022-12-14 07:02:59,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 123 SyntacticMatches, 10 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2022-12-14 07:02:59,644 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 34 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:02:59,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 177 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:02:59,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-12-14 07:02:59,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2022-12-14 07:02:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 53 states have internal predecessors, (61), 32 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-12-14 07:02:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2022-12-14 07:02:59,664 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 124 transitions. Word has length 52 [2022-12-14 07:02:59,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:02:59,664 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 124 transitions. [2022-12-14 07:02:59,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 5 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-12-14 07:02:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2022-12-14 07:02:59,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 07:02:59,665 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:02:59,665 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:02:59,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 07:02:59,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:59,867 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:02:59,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:02:59,868 INFO L85 PathProgramCache]: Analyzing trace with hash -243308457, now seen corresponding path program 1 times [2022-12-14 07:02:59,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:02:59,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977580508] [2022-12-14 07:02:59,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:59,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:02:59,896 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:02:59,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067764721] [2022-12-14 07:02:59,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:02:59,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:02:59,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:02:59,899 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:02:59,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 07:02:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:02:59,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 07:02:59,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:00,042 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 23 proven. 10 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-14 07:03:00,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:03:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-14 07:03:00,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:00,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977580508] [2022-12-14 07:03:00,125 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:03:00,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067764721] [2022-12-14 07:03:00,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067764721] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:03:00,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1533371222] [2022-12-14 07:03:00,128 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 07:03:00,128 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:03:00,128 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:03:00,128 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:03:00,128 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:03:08,301 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-12-14 07:03:08,308 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:03:08,317 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:03:11,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1533371222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:11,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:03:11,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [9, 7] total 27 [2022-12-14 07:03:11,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252544748] [2022-12-14 07:03:11,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:11,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 07:03:11,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:11,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 07:03:11,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2022-12-14 07:03:11,872 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2022-12-14 07:03:12,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:12,552 INFO L93 Difference]: Finished difference Result 113 states and 146 transitions. [2022-12-14 07:03:12,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 07:03:12,553 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) Word has length 58 [2022-12-14 07:03:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:12,553 INFO L225 Difference]: With dead ends: 113 [2022-12-14 07:03:12,553 INFO L226 Difference]: Without dead ends: 111 [2022-12-14 07:03:12,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 129 SyntacticMatches, 18 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2022-12-14 07:03:12,554 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 18 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:12,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 62 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 07:03:12,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-12-14 07:03:12,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-12-14 07:03:12,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 64 states have internal predecessors, (73), 36 states have call successors, (36), 11 states have call predecessors, (36), 11 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-12-14 07:03:12,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 144 transitions. [2022-12-14 07:03:12,589 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 144 transitions. Word has length 58 [2022-12-14 07:03:12,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:12,589 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 144 transitions. [2022-12-14 07:03:12,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2022-12-14 07:03:12,590 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 144 transitions. [2022-12-14 07:03:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 07:03:12,591 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:12,591 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:03:12,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 07:03:12,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 07:03:12,793 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:12,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:12,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1984692712, now seen corresponding path program 1 times [2022-12-14 07:03:12,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:12,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118631526] [2022-12-14 07:03:12,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:12,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:12,820 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:03:12,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581366453] [2022-12-14 07:03:12,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:12,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:12,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:03:12,823 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:03:12,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 07:03:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:12,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 07:03:12,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:12,965 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-12-14 07:03:12,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:03:13,049 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-12-14 07:03:13,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:13,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118631526] [2022-12-14 07:03:13,050 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:03:13,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581366453] [2022-12-14 07:03:13,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581366453] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:03:13,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1145274577] [2022-12-14 07:03:13,052 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-12-14 07:03:13,052 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:03:13,053 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:03:13,053 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:03:13,053 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:03:16,418 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-12-14 07:03:16,453 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:03:16,462 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:03:20,633 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3657#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 07:03:20,633 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:03:20,634 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:03:20,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2022-12-14 07:03:20,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421093273] [2022-12-14 07:03:20,634 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:03:20,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 07:03:20,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:20,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 07:03:20,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2022-12-14 07:03:20,635 INFO L87 Difference]: Start difference. First operand 111 states and 144 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:03:20,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:03:20,752 INFO L93 Difference]: Finished difference Result 122 states and 158 transitions. [2022-12-14 07:03:20,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:03:20,753 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-12-14 07:03:20,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:03:20,755 INFO L225 Difference]: With dead ends: 122 [2022-12-14 07:03:20,755 INFO L226 Difference]: Without dead ends: 120 [2022-12-14 07:03:20,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 157 SyntacticMatches, 11 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2022-12-14 07:03:20,756 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:03:20,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 103 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:03:20,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-12-14 07:03:20,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-12-14 07:03:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.1492537313432836) internal successors, (77), 69 states have internal predecessors, (77), 40 states have call successors, (40), 12 states have call predecessors, (40), 12 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2022-12-14 07:03:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 156 transitions. [2022-12-14 07:03:20,792 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 156 transitions. Word has length 65 [2022-12-14 07:03:20,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:20,792 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 156 transitions. [2022-12-14 07:03:20,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-14 07:03:20,792 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 156 transitions. [2022-12-14 07:03:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 07:03:20,793 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:20,794 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:03:20,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 07:03:20,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:20,996 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:03:20,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:20,997 INFO L85 PathProgramCache]: Analyzing trace with hash -2003369438, now seen corresponding path program 1 times [2022-12-14 07:03:20,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:20,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531543277] [2022-12-14 07:03:20,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:20,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:21,019 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:03:21,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292604930] [2022-12-14 07:03:21,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:21,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:03:21,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:03:21,020 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:03:21,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 07:03:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:21,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-14 07:03:21,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:03:21,444 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 18 proven. 14 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-12-14 07:03:21,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:03:21,920 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-12-14 07:03:21,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:21,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531543277] [2022-12-14 07:03:21,920 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:03:21,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292604930] [2022-12-14 07:03:21,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292604930] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:03:21,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1723535024] [2022-12-14 07:03:21,922 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-12-14 07:03:21,922 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:03:21,922 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:03:21,922 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:03:21,922 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:03:25,040 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-12-14 07:03:25,043 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:03:25,051 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:03:40,340 WARN L233 SmtUtils]: Spent 9.15s on a formula simplification. DAG size of input: 83 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:03:52,490 WARN L233 SmtUtils]: Spent 10.32s on a formula simplification. DAG size of input: 85 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:03:52,788 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4510#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 07:03:52,788 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:03:52,788 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:03:52,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2022-12-14 07:03:52,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346108518] [2022-12-14 07:03:52,789 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:03:52,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 07:03:52,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:52,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 07:03:52,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=1434, Unknown=0, NotChecked=0, Total=1640 [2022-12-14 07:03:52,790 INFO L87 Difference]: Start difference. First operand 120 states and 156 transitions. Second operand has 21 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 11 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2022-12-14 07:04:03,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:03,456 INFO L93 Difference]: Finished difference Result 199 states and 279 transitions. [2022-12-14 07:04:03,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 07:04:03,457 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 11 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 74 [2022-12-14 07:04:03,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:03,459 INFO L225 Difference]: With dead ends: 199 [2022-12-14 07:04:03,459 INFO L226 Difference]: Without dead ends: 197 [2022-12-14 07:04:03,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 169 SyntacticMatches, 12 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1505 ImplicationChecksByTransitivity, 33.1s TimeCoverageRelationStatistics Valid=490, Invalid=3292, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 07:04:03,461 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 106 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:03,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 325 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-12-14 07:04:03,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-12-14 07:04:03,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 187. [2022-12-14 07:04:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 99 states have (on average 1.2222222222222223) internal successors, (121), 101 states have internal predecessors, (121), 73 states have call successors, (73), 14 states have call predecessors, (73), 14 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2022-12-14 07:04:03,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 266 transitions. [2022-12-14 07:04:03,554 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 266 transitions. Word has length 74 [2022-12-14 07:04:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:03,554 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 266 transitions. [2022-12-14 07:04:03,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 11 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2022-12-14 07:04:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 266 transitions. [2022-12-14 07:04:03,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 07:04:03,555 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:03,555 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:03,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 07:04:03,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 07:04:03,757 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:04:03,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:03,758 INFO L85 PathProgramCache]: Analyzing trace with hash -134461569, now seen corresponding path program 1 times [2022-12-14 07:04:03,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:03,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267058157] [2022-12-14 07:04:03,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:03,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:03,780 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:04:03,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945173097] [2022-12-14 07:04:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:03,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:03,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:03,781 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:03,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 07:04:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:03,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 07:04:03,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:04,108 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-12-14 07:04:04,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:04:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-12-14 07:04:04,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:04,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267058157] [2022-12-14 07:04:04,456 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:04:04,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945173097] [2022-12-14 07:04:04,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945173097] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:04:04,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [359179439] [2022-12-14 07:04:04,458 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-12-14 07:04:04,458 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:04:04,459 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:04:04,459 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:04:04,459 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:04:07,850 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-12-14 07:04:07,853 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:04:07,862 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:04:21,086 WARN L233 SmtUtils]: Spent 9.87s on a formula simplification. DAG size of input: 83 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:04:31,935 WARN L233 SmtUtils]: Spent 9.90s on a formula simplification. DAG size of input: 85 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:04:32,775 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5671#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 07:04:32,775 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:04:32,775 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:04:32,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 19 [2022-12-14 07:04:32,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787469655] [2022-12-14 07:04:32,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:04:32,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 07:04:32,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:04:32,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 07:04:32,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1367, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 07:04:32,778 INFO L87 Difference]: Start difference. First operand 187 states and 266 transitions. Second operand has 19 states, 18 states have (on average 2.0) internal successors, (36), 15 states have internal predecessors, (36), 9 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2022-12-14 07:04:36,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:04:36,569 INFO L93 Difference]: Finished difference Result 231 states and 326 transitions. [2022-12-14 07:04:36,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 07:04:36,570 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.0) internal successors, (36), 15 states have internal predecessors, (36), 9 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) Word has length 79 [2022-12-14 07:04:36,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:04:36,572 INFO L225 Difference]: With dead ends: 231 [2022-12-14 07:04:36,572 INFO L226 Difference]: Without dead ends: 225 [2022-12-14 07:04:36,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 199 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 27.7s TimeCoverageRelationStatistics Valid=329, Invalid=2323, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 07:04:36,573 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 57 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:04:36,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 159 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 07:04:36,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-12-14 07:04:36,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 197. [2022-12-14 07:04:36,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 108 states have (on average 1.1759259259259258) internal successors, (127), 109 states have internal predecessors, (127), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-12-14 07:04:36,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 268 transitions. [2022-12-14 07:04:36,648 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 268 transitions. Word has length 79 [2022-12-14 07:04:36,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:04:36,648 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 268 transitions. [2022-12-14 07:04:36,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.0) internal successors, (36), 15 states have internal predecessors, (36), 9 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2022-12-14 07:04:36,649 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 268 transitions. [2022-12-14 07:04:36,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-14 07:04:36,649 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:04:36,649 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:04:36,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 07:04:36,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 07:04:36,851 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:04:36,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:04:36,852 INFO L85 PathProgramCache]: Analyzing trace with hash 145896886, now seen corresponding path program 1 times [2022-12-14 07:04:36,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:04:36,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969331740] [2022-12-14 07:04:36,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:36,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:04:36,874 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:04:36,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755235382] [2022-12-14 07:04:36,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:04:36,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:04:36,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:36,875 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:04:36,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 07:04:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:04:36,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 07:04:36,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:04:36,992 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 122 proven. 13 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-12-14 07:04:36,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:04:37,082 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 32 proven. 13 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-12-14 07:04:37,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:04:37,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969331740] [2022-12-14 07:04:37,082 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:04:37,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755235382] [2022-12-14 07:04:37,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755235382] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:04:37,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1178029480] [2022-12-14 07:04:37,084 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 07:04:37,084 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:04:37,084 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:04:37,084 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:04:37,084 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:04:38,991 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2022-12-14 07:04:39,017 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:04:39,028 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:04:59,922 WARN L233 SmtUtils]: Spent 18.11s on a formula simplification. DAG size of input: 177 DAG size of output: 144 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:05:17,363 WARN L233 SmtUtils]: Spent 15.46s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:05:28,871 WARN L233 SmtUtils]: Spent 10.38s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:05:28,968 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6941#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 07:05:28,968 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:05:28,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:05:28,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2022-12-14 07:05:28,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758321389] [2022-12-14 07:05:28,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:05:28,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 07:05:28,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:05:28,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 07:05:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=780, Unknown=0, NotChecked=0, Total=930 [2022-12-14 07:05:28,971 INFO L87 Difference]: Start difference. First operand 197 states and 268 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) [2022-12-14 07:05:29,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:05:29,425 INFO L93 Difference]: Finished difference Result 248 states and 331 transitions. [2022-12-14 07:05:29,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 07:05:29,426 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) Word has length 90 [2022-12-14 07:05:29,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:05:29,427 INFO L225 Difference]: With dead ends: 248 [2022-12-14 07:05:29,427 INFO L226 Difference]: Without dead ends: 173 [2022-12-14 07:05:29,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 223 SyntacticMatches, 16 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 50.1s TimeCoverageRelationStatistics Valid=268, Invalid=1454, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 07:05:29,428 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 64 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:05:29,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 215 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 07:05:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-12-14 07:05:29,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 168. [2022-12-14 07:05:29,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 93 states have (on average 1.1505376344086022) internal successors, (107), 94 states have internal predecessors, (107), 59 states have call successors, (59), 15 states have call predecessors, (59), 15 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 07:05:29,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 224 transitions. [2022-12-14 07:05:29,492 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 224 transitions. Word has length 90 [2022-12-14 07:05:29,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:05:29,492 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 224 transitions. [2022-12-14 07:05:29,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) [2022-12-14 07:05:29,493 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 224 transitions. [2022-12-14 07:05:29,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-14 07:05:29,493 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:05:29,493 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:05:29,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 07:05:29,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:05:29,695 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:05:29,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:05:29,696 INFO L85 PathProgramCache]: Analyzing trace with hash -743497349, now seen corresponding path program 2 times [2022-12-14 07:05:29,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:05:29,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274846616] [2022-12-14 07:05:29,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:05:29,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:05:29,722 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:05:29,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551817551] [2022-12-14 07:05:29,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 07:05:29,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:05:29,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:05:29,726 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:05:29,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 07:05:29,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 07:05:29,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:05:29,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 07:05:29,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:05:29,849 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 152 proven. 10 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-12-14 07:05:29,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:05:29,927 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 46 proven. 24 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-12-14 07:05:29,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:05:29,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274846616] [2022-12-14 07:05:29,927 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:05:29,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551817551] [2022-12-14 07:05:29,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551817551] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:05:29,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [176420682] [2022-12-14 07:05:29,929 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 07:05:29,929 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:05:29,929 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:05:29,929 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:05:29,929 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:05:33,171 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-12-14 07:05:33,174 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:05:33,184 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:05:45,808 WARN L233 SmtUtils]: Spent 9.24s on a formula simplification. DAG size of input: 83 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:06:00,250 WARN L233 SmtUtils]: Spent 13.43s on a formula simplification. DAG size of input: 85 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:06:00,425 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8297#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 07:06:00,425 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:06:00,425 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:06:00,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-12-14 07:06:00,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374272882] [2022-12-14 07:06:00,425 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:06:00,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 07:06:00,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:06:00,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 07:06:00,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=911, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 07:06:00,427 INFO L87 Difference]: Start difference. First operand 168 states and 224 transitions. Second operand has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 9 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2022-12-14 07:06:00,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:06:00,831 INFO L93 Difference]: Finished difference Result 257 states and 344 transitions. [2022-12-14 07:06:00,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 07:06:00,831 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 9 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) Word has length 110 [2022-12-14 07:06:00,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:06:00,832 INFO L225 Difference]: With dead ends: 257 [2022-12-14 07:06:00,832 INFO L226 Difference]: Without dead ends: 160 [2022-12-14 07:06:00,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 276 SyntacticMatches, 21 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1079 ImplicationChecksByTransitivity, 27.4s TimeCoverageRelationStatistics Valid=253, Invalid=1553, Unknown=0, NotChecked=0, Total=1806 [2022-12-14 07:06:00,833 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 29 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:06:00,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 193 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 07:06:00,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-12-14 07:06:00,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 134. [2022-12-14 07:06:00,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 75 states have (on average 1.08) internal successors, (81), 77 states have internal predecessors, (81), 43 states have call successors, (43), 15 states have call predecessors, (43), 15 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2022-12-14 07:06:00,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 166 transitions. [2022-12-14 07:06:00,881 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 166 transitions. Word has length 110 [2022-12-14 07:06:00,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:06:00,882 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 166 transitions. [2022-12-14 07:06:00,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 9 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2022-12-14 07:06:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 166 transitions. [2022-12-14 07:06:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 07:06:00,883 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:06:00,883 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:06:00,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-12-14 07:06:01,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 07:06:01,083 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:06:01,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:06:01,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1538893617, now seen corresponding path program 2 times [2022-12-14 07:06:01,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:06:01,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959069790] [2022-12-14 07:06:01,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:06:01,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:06:01,094 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:06:01,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610878998] [2022-12-14 07:06:01,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 07:06:01,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:06:01,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:06:01,095 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:06:01,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-14 07:06:01,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 07:06:01,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:06:01,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 72 conjunts are in the unsatisfiable core [2022-12-14 07:06:01,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:06:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 37 proven. 46 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-12-14 07:06:01,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:06:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 32 proven. 43 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2022-12-14 07:06:05,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:06:05,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959069790] [2022-12-14 07:06:05,936 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:06:05,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610878998] [2022-12-14 07:06:05,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610878998] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:06:05,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1134979040] [2022-12-14 07:06:05,937 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-12-14 07:06:05,937 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:06:05,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:06:05,938 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:06:05,938 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:06:08,508 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-12-14 07:06:08,543 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:06:08,553 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:06:38,410 WARN L233 SmtUtils]: Spent 24.17s on a formula simplification. DAG size of input: 179 DAG size of output: 146 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:06:53,316 WARN L233 SmtUtils]: Spent 9.83s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:07:04,844 WARN L233 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 77 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:07:25,322 WARN L233 SmtUtils]: Spent 14.68s on a formula simplification. DAG size of input: 177 DAG size of output: 87 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:07:25,449 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9687#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 07:07:25,449 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:07:25,449 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:07:25,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2022-12-14 07:07:25,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885800016] [2022-12-14 07:07:25,450 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:07:25,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-14 07:07:25,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:07:25,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-14 07:07:25,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=1806, Unknown=0, NotChecked=0, Total=2070 [2022-12-14 07:07:25,452 INFO L87 Difference]: Start difference. First operand 134 states and 166 transitions. Second operand has 26 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 14 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) [2022-12-14 07:07:28,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-14 07:07:37,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:07:37,562 INFO L93 Difference]: Finished difference Result 266 states and 355 transitions. [2022-12-14 07:07:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-14 07:07:37,563 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 14 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) Word has length 121 [2022-12-14 07:07:37,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:07:37,565 INFO L225 Difference]: With dead ends: 266 [2022-12-14 07:07:37,565 INFO L226 Difference]: Without dead ends: 217 [2022-12-14 07:07:37,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 299 SyntacticMatches, 18 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2641 ImplicationChecksByTransitivity, 82.9s TimeCoverageRelationStatistics Valid=841, Invalid=5165, Unknown=0, NotChecked=0, Total=6006 [2022-12-14 07:07:37,568 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 133 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:07:37,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 413 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-12-14 07:07:37,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-12-14 07:07:37,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 204. [2022-12-14 07:07:37,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 106 states have (on average 1.1037735849056605) internal successors, (117), 107 states have internal predecessors, (117), 79 states have call successors, (79), 18 states have call predecessors, (79), 18 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-12-14 07:07:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 274 transitions. [2022-12-14 07:07:37,680 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 274 transitions. Word has length 121 [2022-12-14 07:07:37,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:07:37,681 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 274 transitions. [2022-12-14 07:07:37,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 2.0) internal successors, (46), 23 states have internal predecessors, (46), 14 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) [2022-12-14 07:07:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 274 transitions. [2022-12-14 07:07:37,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-12-14 07:07:37,682 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:07:37,682 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:07:37,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-14 07:07:37,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 07:07:37,884 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:07:37,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:07:37,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1186822259, now seen corresponding path program 3 times [2022-12-14 07:07:37,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:07:37,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708837926] [2022-12-14 07:07:37,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:07:37,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:07:37,904 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:07:37,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [225841293] [2022-12-14 07:07:37,904 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 07:07:37,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:07:37,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:07:37,905 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:07:37,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-14 07:07:37,974 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 07:07:37,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:07:37,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 07:07:37,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:07:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 178 proven. 41 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-12-14 07:07:38,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:07:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 54 proven. 41 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-12-14 07:07:38,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:07:38,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708837926] [2022-12-14 07:07:38,158 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:07:38,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225841293] [2022-12-14 07:07:38,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225841293] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:07:38,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2014304139] [2022-12-14 07:07:38,160 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 07:07:38,160 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:07:38,160 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:07:38,160 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:07:38,160 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:07:40,116 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2022-12-14 07:07:40,146 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:07:40,156 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:08:07,781 WARN L233 SmtUtils]: Spent 24.49s on a formula simplification. DAG size of input: 177 DAG size of output: 144 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:08:20,812 WARN L233 SmtUtils]: Spent 10.49s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:08:33,593 WARN L233 SmtUtils]: Spent 11.59s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:08:33,653 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11293#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 07:08:33,653 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:08:33,653 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:08:33,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2022-12-14 07:08:33,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688972553] [2022-12-14 07:08:33,654 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:08:33,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 07:08:33,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:08:33,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 07:08:33,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=897, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 07:08:33,656 INFO L87 Difference]: Start difference. First operand 204 states and 274 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 12 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 11 states have call predecessors, (42), 12 states have call successors, (42) [2022-12-14 07:08:34,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:34,089 INFO L93 Difference]: Finished difference Result 247 states and 327 transitions. [2022-12-14 07:08:34,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 07:08:34,089 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 12 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 11 states have call predecessors, (42), 12 states have call successors, (42) Word has length 129 [2022-12-14 07:08:34,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:34,090 INFO L225 Difference]: With dead ends: 247 [2022-12-14 07:08:34,090 INFO L226 Difference]: Without dead ends: 168 [2022-12-14 07:08:34,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 332 SyntacticMatches, 22 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 53.6s TimeCoverageRelationStatistics Valid=237, Invalid=1485, Unknown=0, NotChecked=0, Total=1722 [2022-12-14 07:08:34,091 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 39 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:08:34,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 219 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 07:08:34,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-12-14 07:08:34,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-12-14 07:08:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 89 states have (on average 1.0898876404494382) internal successors, (97), 90 states have internal predecessors, (97), 63 states have call successors, (63), 15 states have call predecessors, (63), 15 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 07:08:34,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 222 transitions. [2022-12-14 07:08:34,186 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 222 transitions. Word has length 129 [2022-12-14 07:08:34,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:08:34,187 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 222 transitions. [2022-12-14 07:08:34,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 12 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 11 states have call predecessors, (42), 12 states have call successors, (42) [2022-12-14 07:08:34,187 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 222 transitions. [2022-12-14 07:08:34,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-12-14 07:08:34,188 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:34,188 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:34,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-14 07:08:34,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 07:08:34,389 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:08:34,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:34,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1911860483, now seen corresponding path program 4 times [2022-12-14 07:08:34,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:34,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452884642] [2022-12-14 07:08:34,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:34,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:34,417 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:08:34,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1392076682] [2022-12-14 07:08:34,418 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 07:08:34,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:08:34,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:08:34,419 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:08:34,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-14 07:08:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:34,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 07:08:34,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:08:34,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 232 proven. 60 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2022-12-14 07:08:34,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:08:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 70 proven. 66 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2022-12-14 07:08:34,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:08:34,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452884642] [2022-12-14 07:08:34,693 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:08:34,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392076682] [2022-12-14 07:08:34,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392076682] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:08:34,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [163651722] [2022-12-14 07:08:34,695 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 07:08:34,695 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:08:34,695 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:08:34,695 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:08:34,695 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:08:36,605 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-12-14 07:08:36,641 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-12-14 07:08:36,650 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:09:00,436 WARN L233 SmtUtils]: Spent 21.50s on a formula simplification. DAG size of input: 179 DAG size of output: 150 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:09:08,142 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:09:23,315 WARN L233 SmtUtils]: Spent 14.25s on a formula simplification. DAG size of input: 77 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 07:09:23,654 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12917#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 07:09:23,654 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:09:23,654 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 07:09:23,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2022-12-14 07:09:23,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424410922] [2022-12-14 07:09:23,654 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 07:09:23,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 07:09:23,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:09:23,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 07:09:23,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=908, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 07:09:23,655 INFO L87 Difference]: Start difference. First operand 168 states and 222 transitions. Second operand has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 12 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) [2022-12-14 07:09:24,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:09:24,031 INFO L93 Difference]: Finished difference Result 176 states and 228 transitions. [2022-12-14 07:09:24,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 07:09:24,032 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 12 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) Word has length 154 [2022-12-14 07:09:24,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:09:24,032 INFO L225 Difference]: With dead ends: 176 [2022-12-14 07:09:24,032 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 07:09:24,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 402 SyntacticMatches, 27 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1061 ImplicationChecksByTransitivity, 47.1s TimeCoverageRelationStatistics Valid=227, Invalid=1413, Unknown=0, NotChecked=0, Total=1640 [2022-12-14 07:09:24,033 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 42 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:09:24,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 205 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 07:09:24,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 07:09:24,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 07:09:24,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:09:24,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 07:09:24,034 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2022-12-14 07:09:24,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:09:24,034 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 07:09:24,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 12 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (45), 12 states have call predecessors, (45), 12 states have call successors, (45) [2022-12-14 07:09:24,034 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 07:09:24,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 07:09:24,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 07:09:24,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-14 07:09:24,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 07:09:24,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 07:09:48,676 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (let ((.cse40 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse41 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse45 (select |#memory_int| 1)) (.cse36 (+ (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|)) (.cse6 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (+ .cse40 .cse41))) (let ((.cse2 (or (= (+ .cse4 .cse5) .cse8) (not (= |ULTIMATE.start_main_~c~0#1| 0)))) (.cse11 (= (+ .cse6 .cse7) |ULTIMATE.start_main_~b~0#1|)) (.cse24 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse27 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|)))) (.cse3 (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse6 .cse7 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse29 (<= .cse36 2)) (.cse33 (= |ULTIMATE.start_main_~s~0#1| 0)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (= (select |#valid| 2) 1)) (.cse18 (= |#NULL.offset| 0)) (.cse20 (= (select .cse45 0) 48)) (.cse21 (= .cse8 |ULTIMATE.start_main_~a~0#1|)) (.cse22 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse31 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse32 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse35 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse9 (= 11 (select |#length| 2))) (.cse10 (= 2 (select |#length| 1))) (.cse12 (= (select |#valid| 3) 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= (select |#valid| 1) 1)) (.cse19 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse25 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse34 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse23 (= (select .cse45 1) 0)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (or (= (+ .cse4 .cse5 .cse6 .cse7) .cse8) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (= .cse27 |ULTIMATE.start_main_~x~0#1|) .cse28) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse10 .cse11 .cse12 .cse29 (<= 0 |ULTIMATE.start_main_~c~0#1|) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse28) (and .cse0 .cse30 .cse3 (= .cse27 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 (<= 1 |ULTIMATE.start_main_~c~0#1|) .cse31 .cse12 .cse32 .cse33 .cse34 .cse15 .cse35 .cse16 .cse17 .cse18 .cse20 (<= .cse27 2) .cse23 .cse26 .cse28) (and .cse0 .cse30 .cse3 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|) .cse9 .cse10 .cse31 .cse12 .cse29 .cse32 .cse33 .cse34 .cse15 .cse35 (= .cse36 |ULTIMATE.start_main_~y~0#1|) .cse16 .cse17 .cse18 .cse20 .cse21 .cse23 (= 2 |ULTIMATE.start_main_~k~0#1|) .cse26 .cse28) (and .cse16 .cse17 .cse18 .cse20 .cse21 .cse22 (let ((.cse37 (not (= 0 (ite .cse34 1 0)))) (.cse42 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse38 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse39 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse43 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse44 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (or (and .cse0 .cse37 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|) .cse38 .cse39 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse31 .cse12 (not (= (ite (= (+ .cse40 .cse41 .cse42) (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~r~0#1|))) 1 0) 0)) .cse32 .cse43 .cse15 .cse35 (not (= (ite (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~temp~0#1|) 0) 1 0) 0)) (not (= (ite (= .cse8 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) .cse44) (and .cse0 .cse37 .cse1 (= |ULTIMATE.start_main_~yy~0#1| .cse42) .cse38 .cse39 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse12 .cse13 .cse14 .cse43 .cse15 .cse44 .cse19 .cse25))) .cse23 .cse26 .cse28))))) [2022-12-14 07:09:48,677 INFO L895 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: (let ((.cse40 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse41 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse45 (select |#memory_int| 1)) (.cse36 (+ (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|)) (.cse6 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (+ .cse40 .cse41))) (let ((.cse2 (or (= (+ .cse4 .cse5) .cse8) (not (= |ULTIMATE.start_main_~c~0#1| 0)))) (.cse11 (= (+ .cse6 .cse7) |ULTIMATE.start_main_~b~0#1|)) (.cse24 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse27 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|)))) (.cse3 (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse6 .cse7 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse29 (<= .cse36 2)) (.cse33 (= |ULTIMATE.start_main_~s~0#1| 0)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (= (select |#valid| 2) 1)) (.cse18 (= |#NULL.offset| 0)) (.cse20 (= (select .cse45 0) 48)) (.cse21 (= .cse8 |ULTIMATE.start_main_~a~0#1|)) (.cse22 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse31 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse32 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse35 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse9 (= 11 (select |#length| 2))) (.cse10 (= 2 (select |#length| 1))) (.cse12 (= (select |#valid| 3) 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= (select |#valid| 1) 1)) (.cse19 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse25 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse34 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse23 (= (select .cse45 1) 0)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (or (= (+ .cse4 .cse5 .cse6 .cse7) .cse8) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (= .cse27 |ULTIMATE.start_main_~x~0#1|) .cse28) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse10 .cse11 .cse12 .cse29 (<= 0 |ULTIMATE.start_main_~c~0#1|) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse28) (and .cse0 .cse30 .cse3 (= .cse27 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 (<= 1 |ULTIMATE.start_main_~c~0#1|) .cse31 .cse12 .cse32 .cse33 .cse34 .cse15 .cse35 .cse16 .cse17 .cse18 .cse20 (<= .cse27 2) .cse23 .cse26 .cse28) (and .cse0 .cse30 .cse3 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|) .cse9 .cse10 .cse31 .cse12 .cse29 .cse32 .cse33 .cse34 .cse15 .cse35 (= .cse36 |ULTIMATE.start_main_~y~0#1|) .cse16 .cse17 .cse18 .cse20 .cse21 .cse23 (= 2 |ULTIMATE.start_main_~k~0#1|) .cse26 .cse28) (and .cse16 .cse17 .cse18 .cse20 .cse21 .cse22 (let ((.cse37 (not (= 0 (ite .cse34 1 0)))) (.cse42 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse38 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse39 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse43 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse44 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (or (and .cse0 .cse37 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|) .cse38 .cse39 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse31 .cse12 (not (= (ite (= (+ .cse40 .cse41 .cse42) (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~r~0#1|))) 1 0) 0)) .cse32 .cse43 .cse15 .cse35 (not (= (ite (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~temp~0#1|) 0) 1 0) 0)) (not (= (ite (= .cse8 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) .cse44) (and .cse0 .cse37 .cse1 (= |ULTIMATE.start_main_~yy~0#1| .cse42) .cse38 .cse39 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse12 .cse13 .cse14 .cse43 .cse15 .cse44 .cse19 .cse25))) .cse23 .cse26 .cse28))))) [2022-12-14 07:09:48,677 INFO L895 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0)) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 07:09:48,677 INFO L895 garLoopResultBuilder]: At program point L24-1(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 07:09:48,677 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (let ((.cse40 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse41 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse45 (select |#memory_int| 1)) (.cse36 (+ (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|)) (.cse6 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (+ .cse40 .cse41))) (let ((.cse2 (or (= (+ .cse4 .cse5) .cse8) (not (= |ULTIMATE.start_main_~c~0#1| 0)))) (.cse11 (= (+ .cse6 .cse7) |ULTIMATE.start_main_~b~0#1|)) (.cse24 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse27 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|)))) (.cse3 (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse6 .cse7 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse29 (<= .cse36 2)) (.cse33 (= |ULTIMATE.start_main_~s~0#1| 0)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (= (select |#valid| 2) 1)) (.cse18 (= |#NULL.offset| 0)) (.cse20 (= (select .cse45 0) 48)) (.cse21 (= .cse8 |ULTIMATE.start_main_~a~0#1|)) (.cse22 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse31 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse32 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse35 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse9 (= 11 (select |#length| 2))) (.cse10 (= 2 (select |#length| 1))) (.cse12 (= (select |#valid| 3) 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= (select |#valid| 1) 1)) (.cse19 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse25 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse34 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse23 (= (select .cse45 1) 0)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (or (= (+ .cse4 .cse5 .cse6 .cse7) .cse8) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (= .cse27 |ULTIMATE.start_main_~x~0#1|) .cse28) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse10 .cse11 .cse12 .cse29 (<= 0 |ULTIMATE.start_main_~c~0#1|) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse28) (and .cse0 .cse30 .cse3 (= .cse27 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 (<= 1 |ULTIMATE.start_main_~c~0#1|) .cse31 .cse12 .cse32 .cse33 .cse34 .cse15 .cse35 .cse16 .cse17 .cse18 .cse20 (<= .cse27 2) .cse23 .cse26 .cse28) (and .cse0 .cse30 .cse3 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|) .cse9 .cse10 .cse31 .cse12 .cse29 .cse32 .cse33 .cse34 .cse15 .cse35 (= .cse36 |ULTIMATE.start_main_~y~0#1|) .cse16 .cse17 .cse18 .cse20 .cse21 .cse23 (= 2 |ULTIMATE.start_main_~k~0#1|) .cse26 .cse28) (and .cse16 .cse17 .cse18 .cse20 .cse21 .cse22 (let ((.cse37 (not (= 0 (ite .cse34 1 0)))) (.cse42 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse38 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse39 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse43 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse44 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (or (and .cse0 .cse37 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|) .cse38 .cse39 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse31 .cse12 (not (= (ite (= (+ .cse40 .cse41 .cse42) (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~r~0#1|))) 1 0) 0)) .cse32 .cse43 .cse15 .cse35 (not (= (ite (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~temp~0#1|) 0) 1 0) 0)) (not (= (ite (= .cse8 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) .cse44) (and .cse0 .cse37 .cse1 (= |ULTIMATE.start_main_~yy~0#1| .cse42) .cse38 .cse39 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse12 .cse13 .cse14 .cse43 .cse15 .cse44 .cse19 .cse25))) .cse23 .cse26 .cse28))))) [2022-12-14 07:09:48,678 INFO L895 garLoopResultBuilder]: At program point L41-1(lines 41 68) the Hoare annotation is: (let ((.cse20 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse25 (select |#memory_int| 1)) (.cse23 (<= |ULTIMATE.start_main_~y~0#1| 2))) (let ((.cse7 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse18 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse2 (not (= (ite (and .cse23 (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse0 (* 2 |ULTIMATE.start_main_~b~0#1|)) (.cse21 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse19 (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (= (select |#length| 3) 12)) (.cse3 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|)) (.cse4 (= 11 (select |#length| 2))) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse8 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse9 (= (select |#valid| 1) 1)) (.cse10 (= (select |#valid| 0) 0)) (.cse11 (= (select |#valid| 2) 1)) (.cse12 (= |#NULL.offset| 0)) (.cse13 (= (select .cse25 0) 48)) (.cse14 (= .cse20 |ULTIMATE.start_main_~a~0#1|)) (.cse15 (= (select .cse25 1) 0)) (.cse22 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse16 (< 0 |#StackHeapBarrier|)) (.cse17 (= |#NULL.base| 0))) (or (and (<= 0 (+ 4611686016279904256 |ULTIMATE.start_main_~xy~0#1|)) (< |ULTIMATE.start_main_~c~0#1| .cse0) .cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|) .cse6 (<= 0 (+ 4611686016279904256 |ULTIMATE.start_main_~yy~0#1|)) (<= 0 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 1) .cse7 (= |ULTIMATE.start_main_~s~0#1| 0) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (<= |ULTIMATE.start_main_~yy~0#1| 4611686018427387904) (<= |ULTIMATE.start_main_~xy~0#1| 4611686018427387904) .cse15 .cse16 .cse17) (and (= |ULTIMATE.start_main_~c~0#1| 0) .cse1 .cse18 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) .cse4 .cse5 (= .cse19 |ULTIMATE.start_main_~b~0#1|) .cse6 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse7 .cse9 (<= 1 .cse20) .cse10 .cse11 .cse12 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse13 (<= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) 2) .cse14 .cse21 .cse15 .cse22 .cse16 .cse17) (and (<= (* 2 |ULTIMATE.start_main_~c~0#1|) 1) (<= 0 |ULTIMATE.start_main_~b~0#1|) .cse1 .cse18 .cse2 .cse4 .cse5 .cse6 (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 1 |ULTIMATE.start_main_~x~0#1|) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (<= .cse0 1) .cse21 (= .cse19 0) .cse15 .cse16 .cse17) (let ((.cse24 (* 2 |ULTIMATE.start_main_~x~0#1|))) (and .cse1 .cse23 (<= |ULTIMATE.start_main_~a~0#1| 2) .cse3 .cse4 .cse5 .cse6 (<= .cse24 |ULTIMATE.start_main_~y~0#1|) (= (+ 2 |ULTIMATE.start_main_~q~0#1|) 0) .cse8 .cse9 .cse10 .cse11 .cse12 (= |ULTIMATE.start_main_~y~0#1| (+ .cse24 |ULTIMATE.start_main_~b~0#1|)) .cse13 .cse14 (not (<= (* 3 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~y~0#1|)) .cse15 .cse22 .cse16 .cse17))))) [2022-12-14 07:09:48,678 INFO L895 garLoopResultBuilder]: At program point L41-2(lines 41 68) the Hoare annotation is: (let ((.cse0 (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= .cse0 |ULTIMATE.start_main_~b~0#1|) (= (select |#valid| 3) 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse1 0) 48) (= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~a~0#1|) (= .cse0 0) (= (select .cse1 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 07:09:48,678 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 07:09:48,678 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~x~0#1| 2) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 07:09:48,678 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse40 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse41 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse45 (select |#memory_int| 1)) (.cse36 (+ (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|)) (.cse6 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (+ .cse40 .cse41))) (let ((.cse2 (or (= (+ .cse4 .cse5) .cse8) (not (= |ULTIMATE.start_main_~c~0#1| 0)))) (.cse11 (= (+ .cse6 .cse7) |ULTIMATE.start_main_~b~0#1|)) (.cse24 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse27 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|)))) (.cse3 (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse6 .cse7 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse29 (<= .cse36 2)) (.cse33 (= |ULTIMATE.start_main_~s~0#1| 0)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (= (select |#valid| 2) 1)) (.cse18 (= |#NULL.offset| 0)) (.cse20 (= (select .cse45 0) 48)) (.cse21 (= .cse8 |ULTIMATE.start_main_~a~0#1|)) (.cse22 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse31 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse32 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse35 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse9 (= 11 (select |#length| 2))) (.cse10 (= 2 (select |#length| 1))) (.cse12 (= (select |#valid| 3) 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= (select |#valid| 1) 1)) (.cse19 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse25 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse34 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse23 (= (select .cse45 1) 0)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (or (= (+ .cse4 .cse5 .cse6 .cse7) .cse8) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (= .cse27 |ULTIMATE.start_main_~x~0#1|) .cse28) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse10 .cse11 .cse12 .cse29 (<= 0 |ULTIMATE.start_main_~c~0#1|) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse28) (and .cse0 .cse30 .cse3 (= .cse27 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 (<= 1 |ULTIMATE.start_main_~c~0#1|) .cse31 .cse12 .cse32 .cse33 .cse34 .cse15 .cse35 .cse16 .cse17 .cse18 .cse20 (<= .cse27 2) .cse23 .cse26 .cse28) (and .cse0 .cse30 .cse3 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|) .cse9 .cse10 .cse31 .cse12 .cse29 .cse32 .cse33 .cse34 .cse15 .cse35 (= .cse36 |ULTIMATE.start_main_~y~0#1|) .cse16 .cse17 .cse18 .cse20 .cse21 .cse23 (= 2 |ULTIMATE.start_main_~k~0#1|) .cse26 .cse28) (and .cse16 .cse17 .cse18 .cse20 .cse21 .cse22 (let ((.cse37 (not (= 0 (ite .cse34 1 0)))) (.cse42 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse38 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse39 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse43 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse44 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (or (and .cse0 .cse37 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|) .cse38 .cse39 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse31 .cse12 (not (= (ite (= (+ .cse40 .cse41 .cse42) (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~p~0#1|) |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~r~0#1|))) 1 0) 0)) .cse32 .cse43 .cse15 .cse35 (not (= (ite (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~temp~0#1|) 0) 1 0) 0)) (not (= (ite (= .cse8 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) .cse44) (and .cse0 .cse37 .cse1 (= |ULTIMATE.start_main_~yy~0#1| .cse42) .cse38 .cse39 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse12 .cse13 .cse14 .cse43 .cse15 .cse44 .cse19 .cse25))) .cse23 .cse26 .cse28))))) [2022-12-14 07:09:48,679 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 43) no Hoare annotation was computed. [2022-12-14 07:09:48,679 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 07:09:48,679 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (let ((.cse3 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse4 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse6 (select |#memory_int| 1)) (.cse1 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse2 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse5 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse0 (= (+ .cse3 .cse4) |ULTIMATE.start_main_~b~0#1|)) (.cse7 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) (and (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (or (= |ULTIMATE.start_main_~b~0#1| 0) .cse0) (= (select |#valid| 3) 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (or (= (+ .cse1 .cse2 .cse3 .cse4) .cse5) (<= (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) (= (select |#valid| 0) 0) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse6 0) 48) (= .cse5 |ULTIMATE.start_main_~a~0#1|) (= (select .cse6 1) 0) (or (= (+ .cse1 .cse2) .cse5) .cse7 (not (= |ULTIMATE.start_main_~c~0#1| 0))) (or .cse0 .cse7) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)))) [2022-12-14 07:09:48,679 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~c~0#1| 0) (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~b~0#1|) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (= (select |#valid| 1) 1) (<= 1 .cse0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse1 0) 48) (<= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) 2) (= .cse0 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 07:09:48,679 INFO L895 garLoopResultBuilder]: At program point L38-1(line 38) the Hoare annotation is: (let ((.cse0 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse1 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~c~0#1| 0) (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~b~0#1|) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (= (select |#valid| 1) 1) (<= 1 .cse0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse1 0) 48) (<= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) 2) (= .cse0 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 07:09:48,679 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-12-14 07:09:48,679 INFO L895 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 07:09:48,679 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2022-12-14 07:09:48,679 INFO L899 garLoopResultBuilder]: For program point L51(lines 47 56) no Hoare annotation was computed. [2022-12-14 07:09:48,680 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 56) the Hoare annotation is: (let ((.cse40 (select |#memory_int| 1)) (.cse38 (+ |ULTIMATE.start_main_~b~0#1| 1)) (.cse37 (+ (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~c~0#1|)) (.cse6 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse4 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|)))) (let ((.cse2 (or (= (+ .cse4 .cse5) .cse8) (not (= |ULTIMATE.start_main_~c~0#1| 0)))) (.cse11 (= (+ .cse6 .cse7) |ULTIMATE.start_main_~b~0#1|)) (.cse24 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse27 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|)))) (.cse3 (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse6 .cse7 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)))) (.cse29 (<= .cse37 2)) (.cse36 (<= .cse38 |ULTIMATE.start_main_~a~0#1|)) (.cse31 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse32 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse33 (= |ULTIMATE.start_main_~s~0#1| 0)) (.cse34 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse35 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse9 (= 11 (select |#length| 2))) (.cse10 (= 2 (select |#length| 1))) (.cse12 (= (select |#valid| 3) 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse39 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse15 (= (select |#valid| 1) 1)) (.cse16 (= (select |#valid| 0) 0)) (.cse17 (= (select |#valid| 2) 1)) (.cse18 (= |#NULL.offset| 0)) (.cse19 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse20 (= (select .cse40 0) 48)) (.cse21 (= .cse8 |ULTIMATE.start_main_~a~0#1|)) (.cse22 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse23 (= (select .cse40 1) 0)) (.cse25 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse26 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (or (= (+ .cse4 .cse5 .cse6 .cse7) .cse8) (not (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (= .cse27 |ULTIMATE.start_main_~x~0#1|) .cse28) (and .cse0 .cse1 .cse2 .cse3 .cse9 .cse10 .cse11 .cse12 .cse29 (<= 0 |ULTIMATE.start_main_~c~0#1|) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse28) (and .cse0 .cse30 .cse3 (= .cse27 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 (<= 1 |ULTIMATE.start_main_~c~0#1|) .cse31 .cse12 .cse32 .cse33 .cse34 .cse15 .cse35 .cse16 .cse17 .cse18 .cse20 (<= .cse27 2) .cse23 .cse26 .cse28) (and .cse0 .cse30 .cse3 .cse36 .cse9 .cse10 .cse31 .cse12 .cse29 .cse32 .cse33 .cse34 .cse15 .cse35 (= .cse37 |ULTIMATE.start_main_~y~0#1|) .cse16 .cse17 .cse18 .cse20 .cse21 .cse23 (= 2 |ULTIMATE.start_main_~k~0#1|) .cse26 .cse28) (and (<= 0 (+ 4611686016279904256 |ULTIMATE.start_main_~xy~0#1|)) .cse0 (<= |ULTIMATE.start_main_~a~0#1| 2) .cse36 .cse9 .cse10 .cse31 (<= .cse38 |ULTIMATE.start_main_~c~0#1|) .cse12 (<= 0 (+ 4611686016279904256 |ULTIMATE.start_main_~yy~0#1|)) .cse32 .cse39 .cse33 .cse34 (<= |ULTIMATE.start_main_~c~0#1| 2) .cse15 .cse35 .cse16 (= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~y~0#1|) .cse17 .cse18 .cse20 .cse21 (<= |ULTIMATE.start_main_~yy~0#1| 4611686018427387904) (<= |ULTIMATE.start_main_~xy~0#1| 4611686018427387904) .cse23 .cse26 .cse28) (and .cse0 .cse1 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9 .cse10 .cse12 .cse13 .cse14 .cse39 .cse15 (<= 1 .cse8) .cse16 .cse17 .cse18 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) .cse19 .cse20 .cse21 .cse22 .cse23 .cse25 .cse26 .cse28)))) [2022-12-14 07:09:48,680 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 56) no Hoare annotation was computed. [2022-12-14 07:09:48,680 INFO L902 garLoopResultBuilder]: At program point L72(line 72) the Hoare annotation is: true [2022-12-14 07:09:48,680 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2022-12-14 07:09:48,680 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2022-12-14 07:09:48,680 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2022-12-14 07:09:48,680 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2022-12-14 07:09:48,680 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 16) no Hoare annotation was computed. [2022-12-14 07:09:48,680 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 16) the Hoare annotation is: true [2022-12-14 07:09:48,680 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 16) no Hoare annotation was computed. [2022-12-14 07:09:48,680 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2022-12-14 07:09:48,682 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:09:48,684 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:09:48,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:09:48 BoogieIcfgContainer [2022-12-14 07:09:48,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:09:48,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:09:48,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:09:48,704 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:09:48,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:02:41" (3/4) ... [2022-12-14 07:09:48,706 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 07:09:48,711 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-12-14 07:09:48,711 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-14 07:09:48,713 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-14 07:09:48,714 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 07:09:48,714 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 07:09:48,714 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 07:09:48,738 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 07:09:48,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:09:48,739 INFO L158 Benchmark]: Toolchain (without parser) took 428200.31ms. Allocated memory was 140.5MB in the beginning and 299.9MB in the end (delta: 159.4MB). Free memory was 106.7MB in the beginning and 178.0MB in the end (delta: -71.3MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. [2022-12-14 07:09:48,739 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:09:48,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.85ms. Allocated memory is still 140.5MB. Free memory was 106.7MB in the beginning and 95.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:09:48,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.96ms. Allocated memory is still 140.5MB. Free memory was 95.8MB in the beginning and 94.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:09:48,739 INFO L158 Benchmark]: Boogie Preprocessor took 21.42ms. Allocated memory is still 140.5MB. Free memory was 94.1MB in the beginning and 93.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:09:48,740 INFO L158 Benchmark]: RCFGBuilder took 247.68ms. Allocated memory is still 140.5MB. Free memory was 93.0MB in the beginning and 80.3MB in the end (delta: 12.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:09:48,740 INFO L158 Benchmark]: TraceAbstraction took 427692.04ms. Allocated memory was 140.5MB in the beginning and 299.9MB in the end (delta: 159.4MB). Free memory was 79.5MB in the beginning and 181.1MB in the end (delta: -101.6MB). Peak memory consumption was 162.5MB. Max. memory is 16.1GB. [2022-12-14 07:09:48,740 INFO L158 Benchmark]: Witness Printer took 34.78ms. Allocated memory is still 299.9MB. Free memory was 181.1MB in the beginning and 178.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:09:48,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.85ms. Allocated memory is still 140.5MB. Free memory was 106.7MB in the beginning and 95.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.96ms. Allocated memory is still 140.5MB. Free memory was 95.8MB in the beginning and 94.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.42ms. Allocated memory is still 140.5MB. Free memory was 94.1MB in the beginning and 93.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 247.68ms. Allocated memory is still 140.5MB. Free memory was 93.0MB in the beginning and 80.3MB in the end (delta: 12.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 427692.04ms. Allocated memory was 140.5MB in the beginning and 299.9MB in the end (delta: 159.4MB). Free memory was 79.5MB in the beginning and 181.1MB in the end (delta: -101.6MB). Peak memory consumption was 162.5MB. Max. memory is 16.1GB. * Witness Printer took 34.78ms. Allocated memory is still 299.9MB. Free memory was 181.1MB in the beginning and 178.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 427.6s, OverallIterations: 16, TraceHistogramMax: 23, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 29.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 24.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 674 SdHoareTripleChecker+Valid, 16.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 618 mSDsluCounter, 2558 SdHoareTripleChecker+Invalid, 16.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1895 mSDsCounter, 958 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4968 IncrementalHoareTripleChecker+Invalid, 5926 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 958 mSolverCounterUnsat, 663 mSDtfsCounter, 4968 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3280 GetRequests, 2608 SyntacticMatches, 176 SemanticMatches, 496 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10294 ImplicationChecksByTransitivity, 334.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=14, InterpolantAutomatonStates: 219, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 16 MinimizatonAttempts, 95 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 194 PreInvPairs, 266 NumberOfFragments, 5595 HoareAnnotationTreeSize, 194 FomulaSimplifications, 3302 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 17 FomulaSimplificationsInter, 52092 FormulaSimplificationTreeSizeReductionInter, 23.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 1127 NumberOfCodeBlocks, 1046 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2155 ConstructedInterpolants, 0 QuantifiedInterpolants, 8374 SizeOfPredicates, 104 NumberOfNonLiveVariables, 3050 ConjunctsInSsa, 374 ConjunctsInUnsatCore, 30 InterpolantComputations, 4 PerfectInterpolantSequences, 7453/7936 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 9.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 98, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 51, TOOLS_POST_TIME: 0.6s, TOOLS_POST_CALL_APPLICATIONS: 92, TOOLS_POST_CALL_TIME: 7.1s, TOOLS_POST_RETURN_APPLICATIONS: 66, TOOLS_POST_RETURN_TIME: 0.6s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 209, TOOLS_QUANTIFIERELIM_TIME: 8.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.4s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 227, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 116, DOMAIN_JOIN_TIME: 0.9s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 98, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 3.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 66, CALL_SUMMARIZER_CACHE_MISSES: 5, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1339, DAG_COMPRESSION_RETAINED_NODES: 224, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && !((if 1 <= y then 1 else 0) == 0)) && (k * q * x + k * s * y == r * y + p * x || !(c == 0))) && xy * q + yy * s + b == s * y + q * x + b * y) && (k * q * x + k * s * y + s * y + q * x == r * y + p * x || !(b == c))) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && s * y + q * x == b) && \valid[3] == 1) && r == 0) && q == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && x <= 2) && unknown-#memory_int-unknown[1][1] == 0) && b <= x) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && b + c == x) && #NULL == 0) || ((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && !((if 1 <= y then 1 else 0) == 0)) && (k * q * x + k * s * y == r * y + p * x || !(c == 0))) && xy * q + yy * s + b == s * y + q * x + b * y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && s * y + q * x == b) && \valid[3] == 1) && 2 * b + c <= 2) && 0 <= c) && r == 0) && q == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && x <= 2) && unknown-#memory_int-unknown[1][1] == 0) && b <= x) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((unknown-#length-unknown[3] == 12 && a == c + b * k) && xy * q + yy * s + b == s * y + q * x + b * y) && b + c == y) && p == 0) && a == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && 1 <= c) && b == x) && \valid[3] == 1) && q == 1) && s == 0) && 1 <= x) && \valid[1] == 1) && r == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && b + c <= 2) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((unknown-#length-unknown[3] == 12 && a == c + b * k) && xy * q + yy * s + b == s * y + q * x + b * y) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b == x) && \valid[3] == 1) && 2 * b + c <= 2) && q == 1) && s == 0) && 1 <= x) && \valid[1] == 1) && r == 1) && 2 * b + c == y) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && unknown-#memory_int-unknown[1][1] == 0) && 2 == k) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((((((0 <= 4611686016279904256 + xy && unknown-#length-unknown[3] == 12) && a <= 2) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b == x) && b + 1 <= c) && \valid[3] == 1) && 0 <= 4611686016279904256 + yy) && q == 1) && k == 0) && s == 0) && 1 <= x) && c <= 2) && \valid[1] == 1) && r == 1) && \valid[0] == 0) && c == y) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && yy <= 4611686018427387904) && xy <= 4611686018427387904) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && !((if 1 <= y then 1 else 0) == 0)) && yy == y * y) && a == c) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && r == 0) && q == 0) && k == 0) && \valid[1] == 1) && 1 <= r * y + p * x) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && xy == x * y) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && x <= 2) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((0 <= 4611686016279904256 + xy && c < 2 * b) && unknown-#length-unknown[3] == 12) && a == y) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b == x) && \valid[3] == 1) && 0 <= 4611686016279904256 + yy) && 0 <= p) && p <= 1) && q == 1) && k == 0) && s == 0) && b <= c) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && yy <= 4611686018427387904) && xy <= 4611686018427387904) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((c == 0 && unknown-#length-unknown[3] == 12) && !((if 1 <= y then 1 else 0) == 0)) && yy == y * y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && s * y + q * x == b) && \valid[3] == 1) && r == 0) && q == 0) && k == 0) && \valid[1] == 1) && 1 <= r * y + p * x) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && xy == x * y) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && b + c <= 2) && r * y + p * x == a) && x <= 2) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((2 * c <= 1 && 0 <= b) && unknown-#length-unknown[3] == 12) && !((if 1 <= y then 1 else 0) == 0)) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 0 <= c) && 1 <= x) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && 2 * b <= 1) && x <= 2) && s * y + q * x == 0) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((unknown-#length-unknown[3] == 12 && y <= 2) && a <= 2) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 2 * x <= y) && 2 + q == 0) && b <= c) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && y == 2 * x + b) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && !(3 * x <= y)) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-12-14 07:09:48,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f571261-f2e9-4d81-aef1-4255bff8ea27/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE