./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur --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 9851f41ad4fb2d0ff96507e8e48f0d2886a8de6481eed845b23377b9fa492b45 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:16:32,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:16:32,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:16:32,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:16:32,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:16:32,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:16:32,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:16:32,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:16:32,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:16:32,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:16:32,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:16:32,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:16:32,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:16:32,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:16:32,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:16:32,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:16:32,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:16:32,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:16:32,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:16:32,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:16:32,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:16:32,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:16:32,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:16:32,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:16:32,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:16:32,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:16:32,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:16:32,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:16:32,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:16:32,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:16:32,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:16:32,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:16:32,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:16:32,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:16:32,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:16:32,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:16:32,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:16:32,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:16:32,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:16:32,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:16:32,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:16:32,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:16:32,452 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:16:32,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:16:32,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:16:32,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:16:32,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:16:32,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:16:32,464 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:16:32,464 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:16:32,464 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:16:32,465 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:16:32,466 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:16:32,466 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:16:32,466 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:16:32,466 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:16:32,467 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:16:32,467 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:16:32,467 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:16:32,467 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:16:32,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:16:32,469 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:16:32,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:16:32,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:16:32,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:16:32,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:16:32,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:16:32,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:16:32,471 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:16:32,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:16:32,471 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:16:32,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:16:32,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:16:32,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:16:32,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:16:32,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:16:32,473 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:16:32,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:16:32,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:16:32,474 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:16:32,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:16:32,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:16:32,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:16:32,476 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_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9851f41ad4fb2d0ff96507e8e48f0d2886a8de6481eed845b23377b9fa492b45 [2022-11-25 23:16:32,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:16:32,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:16:32,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:16:32,802 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:16:32,803 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:16:32,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c [2022-11-25 23:16:35,803 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:16:36,038 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:16:36,039 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c [2022-11-25 23:16:36,044 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/data/2a29cf3b4/426ac72cd7114704b912d38a624c02a8/FLAG83ce1c184 [2022-11-25 23:16:36,060 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/data/2a29cf3b4/426ac72cd7114704b912d38a624c02a8 [2022-11-25 23:16:36,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:16:36,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:16:36,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:16:36,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:16:36,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:16:36,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5ff93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36, skipping insertion in model container [2022-11-25 23:16:36,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:16:36,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:16:36,308 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_a32dc663-91cd-4fe6-b6db-22449d568b35/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c[538,551] [2022-11-25 23:16:36,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:16:36,355 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:16:36,370 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_a32dc663-91cd-4fe6-b6db-22449d568b35/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c[538,551] [2022-11-25 23:16:36,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:16:36,398 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:16:36,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36 WrapperNode [2022-11-25 23:16:36,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:16:36,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:16:36,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:16:36,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:16:36,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,429 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-11-25 23:16:36,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:16:36,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:16:36,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:16:36,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:16:36,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:16:36,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:16:36,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:16:36,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:16:36,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (1/1) ... [2022-11-25 23:16:36,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:16:36,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:16:36,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:16:36,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:16:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:16:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 23:16:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 23:16:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:16:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:16:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:16:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 23:16:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 23:16:36,601 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:16:36,604 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:16:36,802 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:16:36,834 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:16:36,835 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:16:36,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:16:36 BoogieIcfgContainer [2022-11-25 23:16:36,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:16:36,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:16:36,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:16:36,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:16:36,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:16:36" (1/3) ... [2022-11-25 23:16:36,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eacdbac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:16:36, skipping insertion in model container [2022-11-25 23:16:36,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:16:36" (2/3) ... [2022-11-25 23:16:36,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eacdbac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:16:36, skipping insertion in model container [2022-11-25 23:16:36,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:16:36" (3/3) ... [2022-11-25 23:16:36,847 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound2.c [2022-11-25 23:16:36,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:16:36,868 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:16:36,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:16:36,926 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;@6f8257b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:16:36,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:16:36,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-25 23:16:36,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 23:16:36,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:36,938 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:16:36,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:16:36,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:36,944 INFO L85 PathProgramCache]: Analyzing trace with hash 763440750, now seen corresponding path program 1 times [2022-11-25 23:16:36,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:36,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031263579] [2022-11-25 23:16:36,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:36,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 23:16:37,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:37,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031263579] [2022-11-25 23:16:37,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031263579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:37,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:16:37,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:16:37,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365138815] [2022-11-25 23:16:37,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:37,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:16:37,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:16:37,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:16:37,355 INFO L87 Difference]: Start difference. First operand has 27 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 23:16:37,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:37,467 INFO L93 Difference]: Finished difference Result 58 states and 96 transitions. [2022-11-25 23:16:37,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:16:37,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2022-11-25 23:16:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:37,483 INFO L225 Difference]: With dead ends: 58 [2022-11-25 23:16:37,483 INFO L226 Difference]: Without dead ends: 35 [2022-11-25 23:16:37,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:16:37,497 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 11 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:37,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 108 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:16:37,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-25 23:16:37,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2022-11-25 23:16:37,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-25 23:16:37,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2022-11-25 23:16:37,554 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 17 [2022-11-25 23:16:37,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:37,554 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2022-11-25 23:16:37,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 23:16:37,555 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2022-11-25 23:16:37,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 23:16:37,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:37,557 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:16:37,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:16:37,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:16:37,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1804559349, now seen corresponding path program 1 times [2022-11-25 23:16:37,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:37,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204794428] [2022-11-25 23:16:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:37,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:37,807 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 23:16:37,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:37,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204794428] [2022-11-25 23:16:37,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204794428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:37,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:16:37,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:16:37,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968442952] [2022-11-25 23:16:37,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:37,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:16:37,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:37,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:16:37,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:16:37,811 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:16:37,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:37,903 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2022-11-25 23:16:37,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:16:37,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2022-11-25 23:16:37,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:37,905 INFO L225 Difference]: With dead ends: 41 [2022-11-25 23:16:37,906 INFO L226 Difference]: Without dead ends: 39 [2022-11-25 23:16:37,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:16:37,908 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 8 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:37,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 100 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:16:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-25 23:16:37,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2022-11-25 23:16:37,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-25 23:16:37,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2022-11-25 23:16:37,921 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 22 [2022-11-25 23:16:37,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:37,922 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2022-11-25 23:16:37,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:16:37,922 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2022-11-25 23:16:37,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 23:16:37,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:37,923 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:16:37,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:16:37,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:16:37,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:37,924 INFO L85 PathProgramCache]: Analyzing trace with hash 496345742, now seen corresponding path program 1 times [2022-11-25 23:16:37,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:37,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160229378] [2022-11-25 23:16:37,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:37,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:37,941 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:16:37,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1739791345] [2022-11-25 23:16:37,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:37,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:16:37,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:16:37,946 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:16:37,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:16:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:38,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-25 23:16:38,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:16:38,461 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:16:38,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:16:38,683 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 23:16:38,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:38,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160229378] [2022-11-25 23:16:38,684 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:16:38,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739791345] [2022-11-25 23:16:38,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739791345] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:16:38,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [696084152] [2022-11-25 23:16:38,705 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-25 23:16:38,705 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:16:38,709 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:16:38,714 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:16:38,714 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:16:39,253 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-25 23:16:39,266 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-25 23:16:39,267 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:16:40,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [696084152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:16:40,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:16:40,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11, 7] total 24 [2022-11-25 23:16:40,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073890041] [2022-11-25 23:16:40,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:16:40,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:16:40,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:40,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:16:40,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2022-11-25 23:16:40,071 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 11 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-25 23:16:40,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:40,483 INFO L93 Difference]: Finished difference Result 68 states and 84 transitions. [2022-11-25 23:16:40,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 23:16:40,484 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 27 [2022-11-25 23:16:40,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:40,486 INFO L225 Difference]: With dead ends: 68 [2022-11-25 23:16:40,486 INFO L226 Difference]: Without dead ends: 50 [2022-11-25 23:16:40,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 51 SyntacticMatches, 6 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2022-11-25 23:16:40,488 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:40,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 37 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:16:40,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-25 23:16:40,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-25 23:16:40,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 23:16:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2022-11-25 23:16:40,531 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 27 [2022-11-25 23:16:40,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:40,532 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2022-11-25 23:16:40,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 1.25) internal successors, (10), 6 states have internal predecessors, (10), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-25 23:16:40,533 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2022-11-25 23:16:40,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 23:16:40,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:40,534 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:16:40,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:16:40,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:16:40,740 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:16:40,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:40,741 INFO L85 PathProgramCache]: Analyzing trace with hash -202147981, now seen corresponding path program 1 times [2022-11-25 23:16:40,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:40,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516839943] [2022-11-25 23:16:40,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:40,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:40,755 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:16:40,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765128790] [2022-11-25 23:16:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:40,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:16:40,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:16:40,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:16:40,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:16:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:40,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-25 23:16:40,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:16:41,225 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 11 proven. 17 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 23:16:41,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:16:41,452 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-25 23:16:41,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:41,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516839943] [2022-11-25 23:16:41,453 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:16:41,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765128790] [2022-11-25 23:16:41,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765128790] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:16:41,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1611089904] [2022-11-25 23:16:41,460 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-25 23:16:41,461 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:16:41,461 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:16:41,462 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:16:41,462 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:16:44,136 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-25 23:16:44,142 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-25 23:16:44,144 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:16:44,795 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '921#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 23:16:44,795 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:16:44,796 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:16:44,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 16 [2022-11-25 23:16:44,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807812728] [2022-11-25 23:16:44,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:16:44,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:16:44,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:44,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:16:44,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2022-11-25 23:16:44,798 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 7 states have call successors, (14) [2022-11-25 23:16:45,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:45,241 INFO L93 Difference]: Finished difference Result 82 states and 104 transitions. [2022-11-25 23:16:45,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 23:16:45,242 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 7 states have call successors, (14) Word has length 44 [2022-11-25 23:16:45,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:45,245 INFO L225 Difference]: With dead ends: 82 [2022-11-25 23:16:45,245 INFO L226 Difference]: Without dead ends: 69 [2022-11-25 23:16:45,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=127, Invalid=743, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:16:45,247 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 41 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:45,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 101 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:16:45,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-25 23:16:45,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-25 23:16:45,274 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), 21 states have call successors, (21), 8 states have call predecessors, (21), 8 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-25 23:16:45,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2022-11-25 23:16:45,275 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 44 [2022-11-25 23:16:45,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:45,276 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2022-11-25 23:16:45,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 7 states have call successors, (14) [2022-11-25 23:16:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2022-11-25 23:16:45,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 23:16:45,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:45,278 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:16:45,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:16:45,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:16:45,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:16:45,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:45,484 INFO L85 PathProgramCache]: Analyzing trace with hash -567180131, now seen corresponding path program 1 times [2022-11-25 23:16:45,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:45,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011117679] [2022-11-25 23:16:45,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:45,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:45,503 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:16:45,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364946580] [2022-11-25 23:16:45,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:45,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:16:45,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:16:45,509 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:16:45,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:16:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:45,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 23:16:45,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:16:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-25 23:16:46,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:16:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-25 23:16:46,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:16:46,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011117679] [2022-11-25 23:16:46,317 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:16:46,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364946580] [2022-11-25 23:16:46,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364946580] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:16:46,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1669350526] [2022-11-25 23:16:46,320 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-25 23:16:46,320 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:16:46,320 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:16:46,320 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:16:46,321 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:16:48,421 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 18 for LOIs [2022-11-25 23:16:48,432 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-25 23:16:48,434 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:16:49,315 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1483#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 23:16:49,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:16:49,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:16:49,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2022-11-25 23:16:49,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119104150] [2022-11-25 23:16:49,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:16:49,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 23:16:49,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:16:49,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 23:16:49,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2022-11-25 23:16:49,318 INFO L87 Difference]: Start difference. First operand 69 states and 84 transitions. Second operand has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 8 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-25 23:16:49,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:16:49,742 INFO L93 Difference]: Finished difference Result 85 states and 98 transitions. [2022-11-25 23:16:49,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:16:49,744 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 8 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) Word has length 51 [2022-11-25 23:16:49,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:16:49,745 INFO L225 Difference]: With dead ends: 85 [2022-11-25 23:16:49,745 INFO L226 Difference]: Without dead ends: 83 [2022-11-25 23:16:49,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 119 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2022-11-25 23:16:49,746 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:16:49,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 150 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:16:49,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-25 23:16:49,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2022-11-25 23:16:49,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 50 states have internal predecessors, (52), 21 states have call successors, (21), 11 states have call predecessors, (21), 11 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-25 23:16:49,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 93 transitions. [2022-11-25 23:16:49,774 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 93 transitions. Word has length 51 [2022-11-25 23:16:49,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:16:49,774 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 93 transitions. [2022-11-25 23:16:49,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 8 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-25 23:16:49,775 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 93 transitions. [2022-11-25 23:16:49,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-25 23:16:49,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:16:49,776 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 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] [2022-11-25 23:16:49,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:16:49,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:16:49,982 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:16:49,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:16:49,982 INFO L85 PathProgramCache]: Analyzing trace with hash 166119996, now seen corresponding path program 1 times [2022-11-25 23:16:49,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:16:49,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334461121] [2022-11-25 23:16:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:49,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:16:49,997 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:16:49,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123375495] [2022-11-25 23:16:49,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:16:49,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:16:49,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:16:50,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:16:50,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:16:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:16:50,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-25 23:16:50,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:16:50,691 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 38 proven. 8 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-25 23:16:50,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:17:23,927 WARN L233 SmtUtils]: Spent 17.12s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:18:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 36 proven. 8 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-25 23:18:00,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:00,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334461121] [2022-11-25 23:18:00,751 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:18:00,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123375495] [2022-11-25 23:18:00,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123375495] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:18:00,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1853953724] [2022-11-25 23:18:00,754 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-25 23:18:00,754 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:18:00,755 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:18:00,755 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:18:00,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:18:04,677 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 18 for LOIs [2022-11-25 23:18:04,687 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-25 23:18:04,689 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:18:07,893 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2138#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 23:18:07,893 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:18:07,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:18:07,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 20 [2022-11-25 23:18:07,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136142529] [2022-11-25 23:18:07,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:18:07,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-25 23:18:07,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:18:07,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-25 23:18:07,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=865, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:18:07,896 INFO L87 Difference]: Start difference. First operand 81 states and 93 transitions. Second operand has 20 states, 19 states have (on average 1.736842105263158) internal successors, (33), 16 states have internal predecessors, (33), 9 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 10 states have call predecessors, (20), 7 states have call successors, (20) [2022-11-25 23:18:10,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-25 23:18:12,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-25 23:18:14,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-25 23:18:16,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-25 23:18:19,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-25 23:18:21,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-25 23:18:23,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-25 23:18:27,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-25 23:18:31,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-25 23:18:46,866 WARN L233 SmtUtils]: Spent 15.43s on a formula simplification. DAG size of input: 65 DAG size of output: 47 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:18:49,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-25 23:18:51,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-25 23:18:53,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:18:53,034 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2022-11-25 23:18:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 23:18:53,035 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.736842105263158) internal successors, (33), 16 states have internal predecessors, (33), 9 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 10 states have call predecessors, (20), 7 states have call successors, (20) Word has length 63 [2022-11-25 23:18:53,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:18:53,036 INFO L225 Difference]: With dead ends: 100 [2022-11-25 23:18:53,036 INFO L226 Difference]: Without dead ends: 98 [2022-11-25 23:18:53,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 147 SyntacticMatches, 10 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 42.4s TimeCoverageRelationStatistics Valid=201, Invalid=1281, Unknown=0, NotChecked=0, Total=1482 [2022-11-25 23:18:53,039 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 48 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 66 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:18:53,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 111 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 514 Invalid, 9 Unknown, 0 Unchecked, 26.2s Time] [2022-11-25 23:18:53,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-25 23:18:53,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 92. [2022-11-25 23:18:53,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 56 states have (on average 1.0892857142857142) internal successors, (61), 58 states have internal predecessors, (61), 22 states have call successors, (22), 13 states have call predecessors, (22), 13 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-25 23:18:53,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2022-11-25 23:18:53,078 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 63 [2022-11-25 23:18:53,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:18:53,078 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2022-11-25 23:18:53,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.736842105263158) internal successors, (33), 16 states have internal predecessors, (33), 9 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 10 states have call predecessors, (20), 7 states have call successors, (20) [2022-11-25 23:18:53,079 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2022-11-25 23:18:53,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 23:18:53,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:53,080 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 2, 2, 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] [2022-11-25 23:18:53,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:18:53,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:18:53,286 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:18:53,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:53,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1987386298, now seen corresponding path program 1 times [2022-11-25 23:18:53,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:53,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898302304] [2022-11-25 23:18:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:53,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:53,306 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:18:53,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828213519] [2022-11-25 23:18:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:53,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:18:53,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:18:53,308 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:18:53,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:18:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:18:53,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 23:18:53,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:18:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-11-25 23:18:53,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:18:54,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:18:54,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898302304] [2022-11-25 23:18:54,448 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:18:54,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828213519] [2022-11-25 23:18:54,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828213519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:18:54,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [365232380] [2022-11-25 23:18:54,451 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-25 23:18:54,452 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:18:54,452 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:18:54,452 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:18:54,453 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:18:56,847 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-25 23:18:56,851 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-25 23:18:56,852 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:18:57,620 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2737#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 23:18:57,620 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:18:57,620 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:18:57,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2022-11-25 23:18:57,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140292133] [2022-11-25 23:18:57,621 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 23:18:57,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:18:57,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:18:57,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:18:57,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=713, Unknown=0, NotChecked=0, Total=812 [2022-11-25 23:18:57,623 INFO L87 Difference]: Start difference. First operand 92 states and 104 transitions. Second operand has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2022-11-25 23:18:58,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:18:58,125 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2022-11-25 23:18:58,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 23:18:58,126 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 74 [2022-11-25 23:18:58,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:18:58,127 INFO L225 Difference]: With dead ends: 102 [2022-11-25 23:18:58,127 INFO L226 Difference]: Without dead ends: 82 [2022-11-25 23:18:58,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 136 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=141, Invalid=1049, Unknown=0, NotChecked=0, Total=1190 [2022-11-25 23:18:58,129 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:18:58,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 136 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:18:58,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-25 23:18:58,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-11-25 23:18:58,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 50 states have (on average 1.06) internal successors, (53), 51 states have internal predecessors, (53), 19 states have call successors, (19), 12 states have call predecessors, (19), 12 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-25 23:18:58,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2022-11-25 23:18:58,164 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 74 [2022-11-25 23:18:58,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:18:58,164 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2022-11-25 23:18:58,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2022-11-25 23:18:58,165 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2022-11-25 23:18:58,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 23:18:58,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:18:58,166 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:18:58,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:18:58,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 23:18:58,373 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:18:58,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:18:58,373 INFO L85 PathProgramCache]: Analyzing trace with hash 152662242, now seen corresponding path program 2 times [2022-11-25 23:18:58,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:18:58,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198794746] [2022-11-25 23:18:58,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:18:58,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:18:58,386 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:18:58,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97157043] [2022-11-25 23:18:58,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:18:58,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:18:58,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:18:58,406 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:18:58,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 23:18:58,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-25 23:18:58,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:18:58,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-25 23:18:58,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:18:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 42 proven. 35 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-25 23:18:59,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:19:00,795 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 41 proven. 34 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-11-25 23:19:00,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:00,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198794746] [2022-11-25 23:19:00,795 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:19:00,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97157043] [2022-11-25 23:19:00,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97157043] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:19:00,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [796269507] [2022-11-25 23:19:00,797 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-25 23:19:00,797 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:19:00,798 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:19:00,798 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:19:00,798 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:19:03,032 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-25 23:19:03,036 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-25 23:19:03,037 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:19:03,961 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3555#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 23:19:03,961 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:19:03,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:19:03,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2022-11-25 23:19:03,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312563425] [2022-11-25 23:19:03,961 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:19:03,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-25 23:19:03,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:03,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-25 23:19:03,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=927, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:19:03,964 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand has 21 states, 20 states have (on average 1.9) internal successors, (38), 19 states have internal predecessors, (38), 12 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (30), 11 states have call predecessors, (30), 12 states have call successors, (30) [2022-11-25 23:19:08,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:08,953 INFO L93 Difference]: Finished difference Result 113 states and 132 transitions. [2022-11-25 23:19:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:19:08,953 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.9) internal successors, (38), 19 states have internal predecessors, (38), 12 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (30), 11 states have call predecessors, (30), 12 states have call successors, (30) Word has length 85 [2022-11-25 23:19:08,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:08,955 INFO L225 Difference]: With dead ends: 113 [2022-11-25 23:19:08,955 INFO L226 Difference]: Without dead ends: 111 [2022-11-25 23:19:08,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 221 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=208, Invalid=1432, Unknown=0, NotChecked=0, Total=1640 [2022-11-25 23:19:08,956 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 71 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:08,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 126 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:19:08,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-25 23:19:08,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2022-11-25 23:19:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 65 states have (on average 1.0769230769230769) internal successors, (70), 67 states have internal predecessors, (70), 30 states have call successors, (30), 14 states have call predecessors, (30), 14 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-11-25 23:19:08,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2022-11-25 23:19:08,997 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 85 [2022-11-25 23:19:08,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:08,998 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2022-11-25 23:19:08,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.9) internal successors, (38), 19 states have internal predecessors, (38), 12 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (30), 11 states have call predecessors, (30), 12 states have call successors, (30) [2022-11-25 23:19:08,998 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2022-11-25 23:19:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-25 23:19:09,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:09,000 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:09,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-25 23:19:09,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 23:19:09,205 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:09,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:09,206 INFO L85 PathProgramCache]: Analyzing trace with hash 339357760, now seen corresponding path program 3 times [2022-11-25 23:19:09,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:09,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399845857] [2022-11-25 23:19:09,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:09,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:09,216 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:19:09,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1784122674] [2022-11-25 23:19:09,216 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 23:19:09,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:09,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:09,218 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:09,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 23:19:09,364 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 23:19:09,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:19:09,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-25 23:19:09,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:11,369 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 72 proven. 45 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-11-25 23:19:11,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:19:12,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:12,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399845857] [2022-11-25 23:19:12,290 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:19:12,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784122674] [2022-11-25 23:19:12,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784122674] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:19:12,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1351016058] [2022-11-25 23:19:12,292 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-25 23:19:12,292 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:19:12,292 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:19:12,293 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:19:12,293 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:19:14,371 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-25 23:19:14,375 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-25 23:19:14,376 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:19:15,211 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4230#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 23:19:15,211 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:19:15,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:19:15,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2022-11-25 23:19:15,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794572284] [2022-11-25 23:19:15,211 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 23:19:15,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:19:15,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:15,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:19:15,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=821, Unknown=0, NotChecked=0, Total=930 [2022-11-25 23:19:15,213 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 13 states have internal predecessors, (25), 10 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 9 states have call successors, (16) [2022-11-25 23:19:16,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:16,376 INFO L93 Difference]: Finished difference Result 146 states and 162 transitions. [2022-11-25 23:19:16,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 23:19:16,377 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 13 states have internal predecessors, (25), 10 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 9 states have call successors, (16) Word has length 92 [2022-11-25 23:19:16,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:16,378 INFO L225 Difference]: With dead ends: 146 [2022-11-25 23:19:16,378 INFO L226 Difference]: Without dead ends: 98 [2022-11-25 23:19:16,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 159 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:19:16,380 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 16 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:16,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 165 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 23:19:16,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-25 23:19:16,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2022-11-25 23:19:16,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 59 states have (on average 1.0508474576271187) internal successors, (62), 61 states have internal predecessors, (62), 23 states have call successors, (23), 14 states have call predecessors, (23), 14 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-25 23:19:16,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2022-11-25 23:19:16,415 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 92 [2022-11-25 23:19:16,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:16,416 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2022-11-25 23:19:16,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 13 states have internal predecessors, (25), 10 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 9 states have call successors, (16) [2022-11-25 23:19:16,416 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2022-11-25 23:19:16,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 23:19:16,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:16,418 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:16,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-25 23:19:16,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:16,622 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:16,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:16,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1326675146, now seen corresponding path program 2 times [2022-11-25 23:19:16,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:16,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876599798] [2022-11-25 23:19:16,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:16,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:16,640 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:19:16,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188301715] [2022-11-25 23:19:16,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:19:16,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:16,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:16,642 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:16,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 23:19:16,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-25 23:19:16,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:19:16,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-25 23:19:16,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:18,260 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 118 proven. 45 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-11-25 23:19:18,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:19:18,903 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2022-11-25 23:19:18,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:18,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876599798] [2022-11-25 23:19:18,903 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:19:18,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188301715] [2022-11-25 23:19:18,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188301715] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:19:18,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1414534841] [2022-11-25 23:19:18,906 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-25 23:19:18,906 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:19:18,907 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:19:18,907 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:19:18,907 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:19:20,882 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-25 23:19:20,886 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-25 23:19:20,887 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:19:22,077 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5236#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 23:19:22,077 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:19:22,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:19:22,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8] total 21 [2022-11-25 23:19:22,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540221620] [2022-11-25 23:19:22,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:19:22,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-25 23:19:22,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:19:22,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-25 23:19:22,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=989, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:19:22,080 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 10 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 10 states have call predecessors, (26), 8 states have call successors, (26) [2022-11-25 23:19:27,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:27,642 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2022-11-25 23:19:27,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:19:27,643 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 10 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 10 states have call predecessors, (26), 8 states have call successors, (26) Word has length 103 [2022-11-25 23:19:27,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:27,644 INFO L225 Difference]: With dead ends: 101 [2022-11-25 23:19:27,644 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:19:27,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 266 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=213, Invalid=1509, Unknown=0, NotChecked=0, Total=1722 [2022-11-25 23:19:27,646 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 32 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:27,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 87 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 23:19:27,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:19:27,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:19:27,647 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) [2022-11-25 23:19:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:19:27,648 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2022-11-25 23:19:27,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:27,648 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:19:27,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 10 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 10 states have call predecessors, (26), 8 states have call successors, (26) [2022-11-25 23:19:27,648 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:19:27,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:19:27,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 23:19:27,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:27,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 23:19:27,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:19:38,987 WARN L233 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 140 DAG size of output: 79 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-25 23:19:44,053 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 140 DAG size of output: 79 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-25 23:19:49,084 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 140 DAG size of output: 79 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-25 23:20:01,019 INFO L895 garLoopResultBuilder]: At program point L60(line 60) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) (.cse1 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse0) (<= 1 .cse0) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (<= .cse0 2) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse1 0) 48) (= 10 (select |#length| 2)) (= (select .cse1 1) 0) (not (= (ite (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 2) 1 0) 0)) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 23:20:01,019 INFO L899 garLoopResultBuilder]: For program point L48(lines 46 58) no Hoare annotation was computed. [2022-11-25 23:20:01,020 INFO L895 garLoopResultBuilder]: At program point L36-2(lines 36 44) the Hoare annotation is: (let ((.cse17 (mod |ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse19 (<= .cse17 2)) (.cse20 (select |#memory_int| 1)) (.cse18 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse4 (* 2 .cse18)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (<= 1 .cse18)) (.cse2 (= 2 (select |#length| 1))) (.cse3 (= (select |#valid| 3) 1)) (.cse5 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse6 (= (select |#valid| 1) 1)) (.cse7 (= |ULTIMATE.start_main_~r~0#1| .cse17)) (.cse8 (= (select |#valid| 0) 0)) (.cse9 (= (select |#valid| 2) 1)) (.cse10 (= |#NULL.offset| 0)) (.cse11 (= (select .cse20 0) 48)) (.cse12 (= 10 (select |#length| 2))) (.cse13 (= (select .cse20 1) 0)) (.cse14 (not (= (ite .cse19 1 0) 0))) (.cse15 (< 0 |#StackHeapBarrier|)) (.cse16 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= 2 |ULTIMATE.start_main_~p~0#1|) (= .cse4 |ULTIMATE.start_main_~d~0#1|) (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 (= (+ (div |ULTIMATE.start_main_~d~0#1| 2) .cse17) (+ (* (div |ULTIMATE.start_main_~p~0#1| 2) .cse18) (* |ULTIMATE.start_main_~q~0#1| .cse18) |ULTIMATE.start_main_~r~0#1|)) (= |ULTIMATE.start_main_~d~0#1| (* 4 .cse18)) .cse1 .cse2 .cse19 .cse3 (= (* |ULTIMATE.start_main_~p~0#1| .cse18) |ULTIMATE.start_main_~d~0#1|) .cse6 .cse7 (<= .cse4 .cse17) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse15 .cse16) (and .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse18) .cse1 .cse2 .cse3 .cse5 .cse6 (<= .cse18 2) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16))))) [2022-11-25 23:20:01,020 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:20:01,020 INFO L902 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: true [2022-11-25 23:20:01,020 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (not (= (ite (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 2) 1 0) 0)) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 23:20:01,020 INFO L895 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (<= (mod |ULTIMATE.start_main_~B~0#1| 4294967296) 2) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (not (= (ite (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 2) 1 0) 0)) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 23:20:01,021 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse17 (mod |ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse19 (<= .cse17 2)) (.cse20 (select |#memory_int| 1)) (.cse18 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse4 (* 2 .cse18)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (<= 1 .cse18)) (.cse2 (= 2 (select |#length| 1))) (.cse3 (= (select |#valid| 3) 1)) (.cse5 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse6 (= (select |#valid| 1) 1)) (.cse7 (= |ULTIMATE.start_main_~r~0#1| .cse17)) (.cse8 (= (select |#valid| 0) 0)) (.cse9 (= (select |#valid| 2) 1)) (.cse10 (= |#NULL.offset| 0)) (.cse11 (= (select .cse20 0) 48)) (.cse12 (= 10 (select |#length| 2))) (.cse13 (= (select .cse20 1) 0)) (.cse14 (not (= (ite .cse19 1 0) 0))) (.cse15 (< 0 |#StackHeapBarrier|)) (.cse16 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= 2 |ULTIMATE.start_main_~p~0#1|) (= .cse4 |ULTIMATE.start_main_~d~0#1|) (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 (= (+ (div |ULTIMATE.start_main_~d~0#1| 2) .cse17) (+ (* (div |ULTIMATE.start_main_~p~0#1| 2) .cse18) (* |ULTIMATE.start_main_~q~0#1| .cse18) |ULTIMATE.start_main_~r~0#1|)) (= |ULTIMATE.start_main_~d~0#1| (* 4 .cse18)) .cse1 .cse2 .cse19 .cse3 (= (* |ULTIMATE.start_main_~p~0#1| .cse18) |ULTIMATE.start_main_~d~0#1|) .cse6 .cse7 (<= .cse4 .cse17) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse15 .cse16) (and .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse18) .cse1 .cse2 .cse3 .cse5 .cse6 (<= .cse18 2) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16))))) [2022-11-25 23:20:01,021 INFO L895 garLoopResultBuilder]: At program point L37-1(line 37) the Hoare annotation is: (let ((.cse17 (mod |ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse19 (<= .cse17 2)) (.cse20 (select |#memory_int| 1)) (.cse18 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse4 (* 2 .cse18)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (<= 1 .cse18)) (.cse2 (= 2 (select |#length| 1))) (.cse3 (= (select |#valid| 3) 1)) (.cse5 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse6 (= (select |#valid| 1) 1)) (.cse7 (= |ULTIMATE.start_main_~r~0#1| .cse17)) (.cse8 (= (select |#valid| 0) 0)) (.cse9 (= (select |#valid| 2) 1)) (.cse10 (= |#NULL.offset| 0)) (.cse11 (= (select .cse20 0) 48)) (.cse12 (= 10 (select |#length| 2))) (.cse13 (= (select .cse20 1) 0)) (.cse14 (not (= (ite .cse19 1 0) 0))) (.cse15 (< 0 |#StackHeapBarrier|)) (.cse16 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= 2 |ULTIMATE.start_main_~p~0#1|) (= .cse4 |ULTIMATE.start_main_~d~0#1|) (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 (= (+ (div |ULTIMATE.start_main_~d~0#1| 2) .cse17) (+ (* (div |ULTIMATE.start_main_~p~0#1| 2) .cse18) (* |ULTIMATE.start_main_~q~0#1| .cse18) |ULTIMATE.start_main_~r~0#1|)) (= |ULTIMATE.start_main_~d~0#1| (* 4 .cse18)) .cse1 .cse2 .cse19 .cse3 (= (* |ULTIMATE.start_main_~p~0#1| .cse18) |ULTIMATE.start_main_~d~0#1|) .cse6 .cse7 (<= .cse4 .cse17) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse15 .cse16) (and .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse18) .cse1 .cse2 .cse3 .cse5 .cse6 (<= .cse18 2) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16))))) [2022-11-25 23:20:01,021 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:20:01,021 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-25 23:20:01,022 INFO L895 garLoopResultBuilder]: At program point L54-2(lines 22 63) the Hoare annotation is: (let ((.cse25 (select |#memory_int| 1)) (.cse20 (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse24 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse0 (<= 1 .cse24)) (.cse2 (= |ULTIMATE.start_main_~d~0#1| .cse24)) (.cse23 (<= (* 2 .cse24) .cse20)) (.cse1 (= (select |#length| 3) 12)) (.cse4 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse6 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse7 (= (select |#valid| 1) 1)) (.cse3 (<= .cse24 2)) (.cse8 (= |ULTIMATE.start_main_~r~0#1| .cse20)) (.cse9 (= (select |#valid| 0) 0)) (.cse10 (= (select |#valid| 2) 1)) (.cse11 (= |#NULL.offset| 0)) (.cse12 (= (select .cse25 0) 48)) (.cse13 (= 10 (select |#length| 2))) (.cse14 (= (select .cse25 1) 0)) (.cse15 (not (= (ite (<= .cse20 2) 1 0) 0))) (.cse16 (< 0 |#StackHeapBarrier|)) (.cse17 (= |#NULL.base| 0))) (or (and (not (= (ite .cse0 1 0) 0)) .cse1 (= |ULTIMATE.start_main_~p~0#1| 1) .cse2 (not (= (ite .cse3 1 0) 0)) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) (and .cse1 .cse0 (exists ((|aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| Int) (|aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| Int)) (let ((.cse21 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 4294967296)) (.cse22 (* |aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| 4294967296))) (let ((.cse19 (+ .cse22 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|)) (.cse18 (+ .cse21 .cse22 (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|))) (and (< .cse18 4294967296) (< .cse19 4294967296) (<= 0 .cse19) (< |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| 4294967296) (<= 0 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|) (= (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|)) .cse20) (<= 0 (+ .cse21 .cse22 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|)) (<= (+ (* 2 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|) (* |aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| 8589934592) (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 8589934592)) .cse20) (= (+ (* (* |aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| |ULTIMATE.start_main_~p~0#1|) 4294967296) (* |ULTIMATE.start_main_~p~0#1| |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|)) |ULTIMATE.start_main_~d~0#1|) (<= 1 .cse18))))) .cse4 .cse5 (or (not (<= |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= 0 |ULTIMATE.start_main_~r~0#1|)) .cse7 .cse23 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) (and .cse1 .cse2 .cse4 .cse5 (= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|) (= |ULTIMATE.start_main_~q~0#1| 1) (not .cse23) .cse7 (= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) .cse20) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (<= .cse24 .cse20) .cse15 .cse16 .cse17) (and .cse1 .cse4 .cse5 (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) .cse6 (< |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~d~0#1|) (= (* |ULTIMATE.start_main_~p~0#1| .cse24) |ULTIMATE.start_main_~d~0#1|) .cse7 .cse3 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17)))) [2022-11-25 23:20:01,022 INFO L895 garLoopResultBuilder]: At program point L46-1(lines 46 58) the Hoare annotation is: (let ((.cse20 (select |#memory_int| 1)) (.cse8 (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse19 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse1 (= (select |#length| 3) 12)) (.cse2 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse3 (= |ULTIMATE.start_main_~d~0#1| .cse19)) (.cse0 (<= 1 .cse19)) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse7 (= (select |#valid| 1) 1)) (.cse4 (<= .cse19 2)) (.cse18 (= (+ (* |ULTIMATE.start_main_~q~0#1| .cse19) |ULTIMATE.start_main_~r~0#1|) .cse8)) (.cse9 (= (select |#valid| 0) 0)) (.cse10 (= (select |#valid| 2) 1)) (.cse11 (= |#NULL.offset| 0)) (.cse12 (= (select .cse20 0) 48)) (.cse13 (= 10 (select |#length| 2))) (.cse14 (= (select .cse20 1) 0)) (.cse15 (not (= (ite (<= .cse8 2) 1 0) 0))) (.cse16 (< 0 |#StackHeapBarrier|)) (.cse17 (= |#NULL.base| 0))) (or (and (not (= (ite .cse0 1 0) 0)) .cse1 .cse2 .cse3 (not (= (ite .cse4 1 0) 0)) .cse5 .cse6 (= |ULTIMATE.start_main_~q~0#1| 0) .cse7 (= |ULTIMATE.start_main_~r~0#1| .cse8) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) (and .cse1 .cse2 .cse3 .cse0 .cse5 .cse6 .cse7 .cse4 .cse18 (<= (* 2 .cse19) .cse8) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) (and .cse1 .cse2 .cse3 .cse0 .cse5 .cse6 (<= |ULTIMATE.start_main_~d~0#1| .cse8) .cse7 .cse4 .cse18 (= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) .cse8) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17)))) [2022-11-25 23:20:01,023 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (let ((.cse17 (mod |ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse19 (<= .cse17 2)) (.cse20 (select |#memory_int| 1)) (.cse18 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse4 (* 2 .cse18)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (<= 1 .cse18)) (.cse2 (= 2 (select |#length| 1))) (.cse3 (= (select |#valid| 3) 1)) (.cse5 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse6 (= (select |#valid| 1) 1)) (.cse7 (= |ULTIMATE.start_main_~r~0#1| .cse17)) (.cse8 (= (select |#valid| 0) 0)) (.cse9 (= (select |#valid| 2) 1)) (.cse10 (= |#NULL.offset| 0)) (.cse11 (= (select .cse20 0) 48)) (.cse12 (= 10 (select |#length| 2))) (.cse13 (= (select .cse20 1) 0)) (.cse14 (not (= (ite .cse19 1 0) 0))) (.cse15 (< 0 |#StackHeapBarrier|)) (.cse16 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= 2 |ULTIMATE.start_main_~p~0#1|) (= .cse4 |ULTIMATE.start_main_~d~0#1|) (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 (= (+ (div |ULTIMATE.start_main_~d~0#1| 2) .cse17) (+ (* (div |ULTIMATE.start_main_~p~0#1| 2) .cse18) (* |ULTIMATE.start_main_~q~0#1| .cse18) |ULTIMATE.start_main_~r~0#1|)) (= |ULTIMATE.start_main_~d~0#1| (* 4 .cse18)) .cse1 .cse2 .cse19 .cse3 (= (* |ULTIMATE.start_main_~p~0#1| .cse18) |ULTIMATE.start_main_~d~0#1|) .cse6 .cse7 (<= .cse4 .cse17) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse15 .cse16) (and .cse0 (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~d~0#1| .cse18) .cse1 .cse2 .cse3 .cse5 .cse6 (<= .cse18 2) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16))))) [2022-11-25 23:20:01,023 INFO L895 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 23:20:01,023 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-11-25 23:20:01,023 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (let ((.cse25 (select |#memory_int| 1)) (.cse20 (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse24 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse0 (<= 1 .cse24)) (.cse2 (= |ULTIMATE.start_main_~d~0#1| .cse24)) (.cse23 (<= (* 2 .cse24) .cse20)) (.cse1 (= (select |#length| 3) 12)) (.cse4 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse6 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse7 (= (select |#valid| 1) 1)) (.cse3 (<= .cse24 2)) (.cse8 (= |ULTIMATE.start_main_~r~0#1| .cse20)) (.cse9 (= (select |#valid| 0) 0)) (.cse10 (= (select |#valid| 2) 1)) (.cse11 (= |#NULL.offset| 0)) (.cse12 (= (select .cse25 0) 48)) (.cse13 (= 10 (select |#length| 2))) (.cse14 (= (select .cse25 1) 0)) (.cse15 (not (= (ite (<= .cse20 2) 1 0) 0))) (.cse16 (< 0 |#StackHeapBarrier|)) (.cse17 (= |#NULL.base| 0))) (or (and (not (= (ite .cse0 1 0) 0)) .cse1 (= |ULTIMATE.start_main_~p~0#1| 1) .cse2 (not (= (ite .cse3 1 0) 0)) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) (and .cse1 .cse0 (exists ((|aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| Int) (|aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| Int)) (let ((.cse21 (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 4294967296)) (.cse22 (* |aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| 4294967296))) (let ((.cse19 (+ .cse22 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|)) (.cse18 (+ .cse21 .cse22 (* |aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56| 4294967296) |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|))) (and (< .cse18 4294967296) (< .cse19 4294967296) (<= 0 .cse19) (< |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| 4294967296) (<= 0 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|) (= (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|)) .cse20) (<= 0 (+ .cse21 .cse22 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|)) (<= (+ (* 2 |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|) (* |aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| 8589934592) (* |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67| 8589934592)) .cse20) (= (+ (* (* |aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78| |ULTIMATE.start_main_~p~0#1|) 4294967296) (* |ULTIMATE.start_main_~p~0#1| |aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78|)) |ULTIMATE.start_main_~d~0#1|) (<= 1 .cse18))))) .cse4 .cse5 (or (not (<= |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= 0 |ULTIMATE.start_main_~r~0#1|)) .cse7 .cse23 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) (and .cse1 .cse2 .cse4 .cse5 (= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|) (= |ULTIMATE.start_main_~q~0#1| 1) (not .cse23) .cse7 (= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) .cse20) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (<= .cse24 .cse20) .cse15 .cse16 .cse17) (and .cse1 .cse4 .cse5 (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) .cse6 (< |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~d~0#1|) (= (* |ULTIMATE.start_main_~p~0#1| .cse24) |ULTIMATE.start_main_~d~0#1|) .cse7 .cse3 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17)))) [2022-11-25 23:20:01,024 INFO L895 garLoopResultBuilder]: At program point L47-1(line 47) the Hoare annotation is: (let ((.cse22 (select |#memory_int| 1)) (.cse20 (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (.cse19 (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (let ((.cse0 (<= 1 .cse19)) (.cse2 (= |ULTIMATE.start_main_~d~0#1| .cse19)) (.cse21 (<= (* 2 .cse19) .cse20)) (.cse1 (= (select |#length| 3) 12)) (.cse4 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse6 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse18 (= (* |ULTIMATE.start_main_~p~0#1| .cse19) |ULTIMATE.start_main_~d~0#1|)) (.cse7 (= (select |#valid| 1) 1)) (.cse3 (<= .cse19 2)) (.cse8 (= |ULTIMATE.start_main_~r~0#1| .cse20)) (.cse9 (= (select |#valid| 0) 0)) (.cse10 (= (select |#valid| 2) 1)) (.cse11 (= |#NULL.offset| 0)) (.cse12 (= (select .cse22 0) 48)) (.cse13 (= 10 (select |#length| 2))) (.cse14 (= (select .cse22 1) 0)) (.cse15 (not (= (ite (<= .cse20 2) 1 0) 0))) (.cse16 (< 0 |#StackHeapBarrier|)) (.cse17 (= |#NULL.base| 0))) (or (and (not (= (ite .cse0 1 0) 0)) .cse1 (= |ULTIMATE.start_main_~p~0#1| 1) .cse2 (not (= (ite .cse3 1 0) 0)) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) (and .cse1 .cse0 .cse4 .cse5 (or (not (<= |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= 0 |ULTIMATE.start_main_~r~0#1|)) .cse18 .cse7 (= (+ (* |ULTIMATE.start_main_~q~0#1| .cse19) |ULTIMATE.start_main_~r~0#1|) .cse20) .cse21 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) (and .cse1 .cse2 .cse4 .cse5 (= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|) (= |ULTIMATE.start_main_~q~0#1| 1) (not .cse21) .cse7 (= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) .cse20) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (<= .cse19 .cse20) .cse15 .cse16 .cse17) (and .cse1 .cse4 .cse5 (<= (div (- |ULTIMATE.start_main_~d~0#1|) (- 2)) |ULTIMATE.start_main_~r~0#1|) .cse6 (< |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~d~0#1|) .cse18 .cse7 .cse3 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17)))) [2022-11-25 23:20:01,024 INFO L899 garLoopResultBuilder]: For program point L39(lines 36 44) no Hoare annotation was computed. [2022-11-25 23:20:01,024 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 11 13) the Hoare annotation is: true [2022-11-25 23:20:01,024 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2022-11-25 23:20:01,025 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2022-11-25 23:20:01,025 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2022-11-25 23:20:01,025 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 20) the Hoare annotation is: true [2022-11-25 23:20:01,025 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2022-11-25 23:20:01,025 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2022-11-25 23:20:01,025 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-11-25 23:20:01,029 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2022-11-25 23:20:01,031 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:20:01,041 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,042 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,042 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] [2022-11-25 23:20:01,043 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,043 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,043 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,043 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,044 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,044 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,044 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,045 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,045 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,045 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,045 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,046 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,046 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,046 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,046 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,047 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,047 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,047 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,047 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] [2022-11-25 23:20:01,048 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,060 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,069 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,070 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] [2022-11-25 23:20:01,070 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,070 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,071 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,071 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,071 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,071 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,071 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,071 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,072 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,072 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,072 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,072 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,072 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,072 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,073 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,073 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,073 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,073 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,073 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] [2022-11-25 23:20:01,074 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:20:01 BoogieIcfgContainer [2022-11-25 23:20:01,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:20:01,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:20:01,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:20:01,084 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:20:01,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:16:36" (3/4) ... [2022-11-25 23:20:01,088 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:20:01,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-25 23:20:01,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-25 23:20:01,099 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-25 23:20:01,100 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-25 23:20:01,100 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 23:20:01,103 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:20:01,138 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((!((if 1 <= B % 4294967296 then 1 else 0) == 0) && unknown-#length-unknown[3] == 12) && p == 1) && d == B % 4294967296) && !((if B % 4294967296 <= 2 then 1 else 0) == 0)) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 0) && \valid[1] == 1) && r == A % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && !((if A % 4294967296 <= 2 then 1 else 0) == 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((unknown-#length-unknown[3] == 12 && 1 <= B % 4294967296) && (\exists aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 : int, aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56 : int, aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67 : int, aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 : int :: ((((((((aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67 * 4294967296 + aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 4294967296 + aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56 * 4294967296 + aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 < 4294967296 && aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 4294967296 + aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 < 4294967296) && 0 <= aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 4294967296 + aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78) && aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 < 4294967296) && 0 <= aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78) && r + q * aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 == A % 4294967296) && 0 <= aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67 * 4294967296 + aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 4294967296 + aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78) && 2 * aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 + aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 8589934592 + aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67 * 8589934592 <= A % 4294967296) && aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * p * 4294967296 + p * aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 == d) && 1 <= aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67 * 4294967296 + aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 4294967296 + aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56 * 4294967296 + aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78)) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && (!(d <= r) || 0 <= r)) && \valid[1] == 1) && 2 * (B % 4294967296) <= A % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && !((if A % 4294967296 <= 2 then 1 else 0) == 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((((unknown-#length-unknown[3] == 12 && d == B % 4294967296) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && p == q) && q == 1) && !(2 * (B % 4294967296) <= A % 4294967296)) && \valid[1] == 1) && d + r == A % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && B % 4294967296 <= A % 4294967296) && !((if A % 4294967296 <= 2 then 1 else 0) == 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((((unknown-#length-unknown[3] == 12 && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && -d / -2 <= r) && q == 0) && r < d) && p * (B % 4294967296) == d) && \valid[1] == 1) && B % 4294967296 <= 2) && r == A % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && !((if A % 4294967296 <= 2 then 1 else 0) == 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-25 23:20:01,159 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:20:01,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:20:01,160 INFO L158 Benchmark]: Toolchain (without parser) took 205090.84ms. Allocated memory was 148.9MB in the beginning and 343.9MB in the end (delta: 195.0MB). Free memory was 118.4MB in the beginning and 213.9MB in the end (delta: -95.5MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. [2022-11-25 23:20:01,161 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 148.9MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:20:01,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.72ms. Allocated memory is still 148.9MB. Free memory was 118.4MB in the beginning and 107.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 23:20:01,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.51ms. Allocated memory is still 148.9MB. Free memory was 107.5MB in the beginning and 106.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:20:01,162 INFO L158 Benchmark]: Boogie Preprocessor took 23.11ms. Allocated memory is still 148.9MB. Free memory was 106.3MB in the beginning and 104.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:20:01,163 INFO L158 Benchmark]: RCFGBuilder took 384.59ms. Allocated memory is still 148.9MB. Free memory was 104.9MB in the beginning and 91.8MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 23:20:01,163 INFO L158 Benchmark]: TraceAbstraction took 204243.07ms. Allocated memory was 148.9MB in the beginning and 343.9MB in the end (delta: 195.0MB). Free memory was 91.3MB in the beginning and 217.1MB in the end (delta: -125.8MB). Peak memory consumption was 180.8MB. Max. memory is 16.1GB. [2022-11-25 23:20:01,163 INFO L158 Benchmark]: Witness Printer took 75.34ms. Allocated memory is still 343.9MB. Free memory was 217.1MB in the beginning and 213.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:20:01,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 148.9MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.72ms. Allocated memory is still 148.9MB. Free memory was 118.4MB in the beginning and 107.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.51ms. Allocated memory is still 148.9MB. Free memory was 107.5MB in the beginning and 106.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.11ms. Allocated memory is still 148.9MB. Free memory was 106.3MB in the beginning and 104.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 384.59ms. Allocated memory is still 148.9MB. Free memory was 104.9MB in the beginning and 91.8MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 204243.07ms. Allocated memory was 148.9MB in the beginning and 343.9MB in the end (delta: 195.0MB). Free memory was 91.3MB in the beginning and 217.1MB in the end (delta: -125.8MB). Peak memory consumption was 180.8MB. Max. memory is 16.1GB. * Witness Printer took 75.34ms. Allocated memory is still 343.9MB. Free memory was 217.1MB in the beginning and 213.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] * 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: 17]: 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, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 204.1s, OverallIterations: 10, TraceHistogramMax: 16, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 59.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 33.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 355 SdHoareTripleChecker+Valid, 33.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 309 mSDsluCounter, 1121 SdHoareTripleChecker+Invalid, 33.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 849 mSDsCounter, 380 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3199 IncrementalHoareTripleChecker+Invalid, 3588 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 380 mSolverCounterUnsat, 272 mSDtfsCounter, 3199 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1513 GetRequests, 1207 SyntacticMatches, 38 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3297 ImplicationChecksByTransitivity, 57.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=8, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 72 PreInvPairs, 120 NumberOfFragments, 3300 HoareAnnotationTreeSize, 72 FomulaSimplifications, 184 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 15 FomulaSimplificationsInter, 15944 FormulaSimplificationTreeSizeReductionInter, 32.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 81.6s InterpolantComputationTime, 578 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 935 ConstructedInterpolants, 2 QuantifiedInterpolants, 7674 SizeOfPredicates, 50 NumberOfNonLiveVariables, 1179 ConjunctsInSsa, 264 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 2547/2782 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: 0.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 20, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 13, TOOLS_POST_TIME: 0.0s, TOOLS_POST_CALL_APPLICATIONS: 16, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 39, TOOLS_QUANTIFIERELIM_TIME: 0.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 52, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 20, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 10, CALL_SUMMARIZER_CACHE_MISSES: 2, 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: 173, DAG_COMPRESSION_RETAINED_NODES: 56, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant [2022-11-25 23:20:01,196 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,198 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] [2022-11-25 23:20:01,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,199 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,200 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,200 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,200 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,200 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,201 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,201 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,201 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,202 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,202 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,202 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,202 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,203 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,203 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,203 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,203 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,204 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] [2022-11-25 23:20:01,204 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,211 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,211 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,211 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] [2022-11-25 23:20:01,212 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,212 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,212 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,213 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,213 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,213 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,213 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,214 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,214 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,214 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,214 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,215 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,215 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,215 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,215 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,216 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,216 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67,QUANTIFIED] [2022-11-25 23:20:01,216 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] [2022-11-25 23:20:01,216 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56,QUANTIFIED] [2022-11-25 23:20:01,217 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78,QUANTIFIED] Derived loop invariant: ((((((((((((((((((((!((if 1 <= B % 4294967296 then 1 else 0) == 0) && unknown-#length-unknown[3] == 12) && p == 1) && d == B % 4294967296) && !((if B % 4294967296 <= 2 then 1 else 0) == 0)) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 0) && \valid[1] == 1) && r == A % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && !((if A % 4294967296 <= 2 then 1 else 0) == 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((unknown-#length-unknown[3] == 12 && 1 <= B % 4294967296) && (\exists aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 : int, aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56 : int, aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67 : int, aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 : int :: ((((((((aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67 * 4294967296 + aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 4294967296 + aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56 * 4294967296 + aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 < 4294967296 && aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 4294967296 + aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 < 4294967296) && 0 <= aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 4294967296 + aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78) && aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 < 4294967296) && 0 <= aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78) && r + q * aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 == A % 4294967296) && 0 <= aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67 * 4294967296 + aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 4294967296 + aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78) && 2 * aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 + aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 8589934592 + aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67 * 8589934592 <= A % 4294967296) && aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * p * 4294967296 + p * aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 == d) && 1 <= aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67 * 4294967296 + aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78 * 4294967296 + aux_div_aux_mod_ULTIMATE.start_main_~B~0#1_45_56 * 4294967296 + aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~B~0#1_45_56_67_78)) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && (!(d <= r) || 0 <= r)) && \valid[1] == 1) && 2 * (B % 4294967296) <= A % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && !((if A % 4294967296 <= 2 then 1 else 0) == 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((((unknown-#length-unknown[3] == 12 && d == B % 4294967296) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && p == q) && q == 1) && !(2 * (B % 4294967296) <= A % 4294967296)) && \valid[1] == 1) && d + r == A % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && B % 4294967296 <= A % 4294967296) && !((if A % 4294967296 <= 2 then 1 else 0) == 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((((unknown-#length-unknown[3] == 12 && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && -d / -2 <= r) && q == 0) && r < d) && p * (B % 4294967296) == d) && \valid[1] == 1) && B % 4294967296 <= 2) && r == A % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && !((if A % 4294967296 <= 2 then 1 else 0) == 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((((((((((((unknown-#length-unknown[3] == 12 && 1 <= B % 4294967296) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 2 == p) && 2 * (B % 4294967296) == d) && -d / -2 <= r) && q == 0) && \valid[1] == 1) && r == A % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && !((if A % 4294967296 <= 2 then 1 else 0) == 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((unknown-#length-unknown[3] == 12 && d / 2 + A % 4294967296 == p / 2 * (B % 4294967296) + q * (B % 4294967296) + r) && d == 4 * (B % 4294967296)) && 1 <= B % 4294967296) && 2 == unknown-#length-unknown[1]) && A % 4294967296 <= 2) && \valid[3] == 1) && p * (B % 4294967296) == d) && \valid[1] == 1) && r == A % 4294967296) && 2 * (B % 4294967296) <= A % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((((unknown-#length-unknown[3] == 12 && p == 1) && d == B % 4294967296) && 1 <= B % 4294967296) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 0) && \valid[1] == 1) && B % 4294967296 <= 2) && r == A % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && !((if A % 4294967296 <= 2 then 1 else 0) == 0)) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-25 23:20:01,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a32dc663-91cd-4fe6-b6db-22449d568b35/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE