./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba --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 9439004819e2e34c2ab2e87057bca89732394fc53eb02ecb90192bb8fac7667a --- 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-b5237d8 [2022-11-22 01:26:56,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:26:56,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:26:56,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:26:56,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:26:56,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:26:56,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:26:56,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:26:56,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:26:56,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:26:56,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:26:56,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:26:56,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:26:56,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:26:56,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:26:56,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:26:56,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:26:56,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:26:56,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:26:56,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:26:56,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:26:56,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:26:56,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:26:56,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:26:56,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:26:56,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:26:56,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:26:56,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:26:56,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:26:56,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:26:56,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:26:56,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:26:56,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:26:56,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:26:56,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:26:56,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:26:56,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:26:56,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:26:56,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:26:56,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:26:56,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:26:56,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:26:56,393 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:26:56,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:26:56,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:26:56,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:26:56,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:26:56,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:26:56,401 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:26:56,401 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:26:56,401 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:26:56,402 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:26:56,403 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:26:56,404 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:26:56,404 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:26:56,404 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:26:56,405 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:26:56,405 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:26:56,405 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:26:56,406 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:26:56,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:26:56,407 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:26:56,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:26:56,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:26:56,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:26:56,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:26:56,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:26:56,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:26:56,410 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:26:56,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:26:56,411 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:26:56,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:26:56,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:26:56,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:26:56,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:26:56,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:26:56,414 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:26:56,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:26:56,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:26:56,415 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:26:56,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:26:56,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:26:56,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:26:56,416 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_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9439004819e2e34c2ab2e87057bca89732394fc53eb02ecb90192bb8fac7667a [2022-11-22 01:26:56,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:26:56,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:26:56,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:26:56,808 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:26:56,808 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:26:56,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c [2022-11-22 01:27:00,320 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:27:00,575 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:27:00,576 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c [2022-11-22 01:27:00,584 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/data/07746dcf9/ba56920092ee4dde8e277b0dddfbb7c2/FLAG8abc911b8 [2022-11-22 01:27:00,602 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/data/07746dcf9/ba56920092ee4dde8e277b0dddfbb7c2 [2022-11-22 01:27:00,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:27:00,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:27:00,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:27:00,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:27:00,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:27:00,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:00,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dedb5d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00, skipping insertion in model container [2022-11-22 01:27:00,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:00,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:27:00,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:27:00,855 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_52d4418a-4543-46f1-a416-8ea0c30d9a43/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c[490,503] [2022-11-22 01:27:00,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:27:00,919 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:27:00,939 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_52d4418a-4543-46f1-a416-8ea0c30d9a43/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound1.c[490,503] [2022-11-22 01:27:00,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:27:00,980 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:27:00,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00 WrapperNode [2022-11-22 01:27:00,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:27:00,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:27:00,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:27:00,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:27:00,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:01,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:01,050 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2022-11-22 01:27:01,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:27:01,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:27:01,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:27:01,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:27:01,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:01,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:01,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:01,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:01,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:01,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:01,101 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:01,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:01,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:27:01,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:27:01,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:27:01,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:27:01,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (1/1) ... [2022-11-22 01:27:01,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:27:01,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:27:01,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:27:01,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:27:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:27:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:27:01,228 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:27:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:27:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:27:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:27:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:27:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:27:01,321 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:27:01,324 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:27:01,530 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:27:01,568 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:27:01,568 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:27:01,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:27:01 BoogieIcfgContainer [2022-11-22 01:27:01,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:27:01,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:27:01,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:27:01,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:27:01,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:27:00" (1/3) ... [2022-11-22 01:27:01,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e76a2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:27:01, skipping insertion in model container [2022-11-22 01:27:01,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:27:00" (2/3) ... [2022-11-22 01:27:01,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e76a2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:27:01, skipping insertion in model container [2022-11-22 01:27:01,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:27:01" (3/3) ... [2022-11-22 01:27:01,589 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound1.c [2022-11-22 01:27:01,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:27:01,614 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:27:01,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:27:01,702 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;@1179bf1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:27:01,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:27:01,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-22 01:27:01,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 01:27:01,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:01,730 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:01,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:27:01,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:01,737 INFO L85 PathProgramCache]: Analyzing trace with hash 966807424, now seen corresponding path program 1 times [2022-11-22 01:27:01,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:01,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071157230] [2022-11-22 01:27:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:01,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:01,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:27:01,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1501212186] [2022-11-22 01:27:01,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:01,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:01,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:27:01,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:27:01,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:27:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:02,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-22 01:27:02,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:27:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-22 01:27:02,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:27:02,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:02,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071157230] [2022-11-22 01:27:02,155 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:27:02,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501212186] [2022-11-22 01:27:02,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501212186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:02,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:02,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:27:02,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270831946] [2022-11-22 01:27:02,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:02,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:27:02,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:02,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:27:02,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:27:02,229 INFO L87 Difference]: Start difference. First operand has 30 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-22 01:27:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:02,302 INFO L93 Difference]: Finished difference Result 49 states and 78 transitions. [2022-11-22 01:27:02,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:27:02,306 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 26 [2022-11-22 01:27:02,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:02,317 INFO L225 Difference]: With dead ends: 49 [2022-11-22 01:27:02,317 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 01:27:02,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:27:02,329 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:02,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:27:02,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 01:27:02,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-22 01:27:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-22 01:27:02,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 39 transitions. [2022-11-22 01:27:02,393 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 39 transitions. Word has length 26 [2022-11-22 01:27:02,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:02,396 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 39 transitions. [2022-11-22 01:27:02,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-22 01:27:02,398 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2022-11-22 01:27:02,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 01:27:02,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:02,400 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:02,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:27:02,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-22 01:27:02,608 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:27:02,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:02,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1643993843, now seen corresponding path program 1 times [2022-11-22 01:27:02,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:02,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285439989] [2022-11-22 01:27:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:02,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:02,659 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:27:02,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1192861847] [2022-11-22 01:27:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:02,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:02,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:27:02,669 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:27:02,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:27:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:02,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:27:02,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:27:02,889 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-22 01:27:02,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:27:03,044 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-22 01:27:03,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:03,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285439989] [2022-11-22 01:27:03,047 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:27:03,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192861847] [2022-11-22 01:27:03,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192861847] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:27:03,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1696957386] [2022-11-22 01:27:03,073 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-22 01:27:03,073 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:27:03,077 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:27:03,084 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:27:03,084 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:27:04,361 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-22 01:27:04,390 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:27:05,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1696957386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:05,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:27:05,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5, 5] total 14 [2022-11-22 01:27:05,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505627583] [2022-11-22 01:27:05,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:05,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:27:05,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:05,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:27:05,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-22 01:27:05,610 INFO L87 Difference]: Start difference. First operand 28 states and 39 transitions. Second operand has 11 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-22 01:27:05,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:05,856 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2022-11-22 01:27:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:27:05,857 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 27 [2022-11-22 01:27:05,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:05,858 INFO L225 Difference]: With dead ends: 38 [2022-11-22 01:27:05,859 INFO L226 Difference]: Without dead ends: 30 [2022-11-22 01:27:05,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-22 01:27:05,861 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 48 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:05,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 48 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:27:05,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-22 01:27:05,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-22 01:27:05,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-22 01:27:05,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2022-11-22 01:27:05,903 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 27 [2022-11-22 01:27:05,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:05,904 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2022-11-22 01:27:05,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-22 01:27:05,905 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2022-11-22 01:27:05,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 01:27:05,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:05,907 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:05,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:27:06,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:06,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:27:06,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash -575116102, now seen corresponding path program 1 times [2022-11-22 01:27:06,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:06,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002423633] [2022-11-22 01:27:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:06,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:06,132 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:27:06,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [828011975] [2022-11-22 01:27:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:06,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:06,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:27:06,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:27:06,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:27:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:06,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-22 01:27:06,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:27:06,323 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-22 01:27:06,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:27:06,422 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-22 01:27:06,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:06,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002423633] [2022-11-22 01:27:06,423 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:27:06,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828011975] [2022-11-22 01:27:06,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828011975] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:27:06,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:27:06,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-22 01:27:06,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890106031] [2022-11-22 01:27:06,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:06,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:27:06,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:06,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:27:06,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:27:06,427 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-22 01:27:06,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:06,522 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-11-22 01:27:06,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:27:06,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 28 [2022-11-22 01:27:06,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:06,527 INFO L225 Difference]: With dead ends: 36 [2022-11-22 01:27:06,527 INFO L226 Difference]: Without dead ends: 34 [2022-11-22 01:27:06,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:27:06,531 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:06,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 101 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:27:06,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-22 01:27:06,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-22 01:27:06,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-22 01:27:06,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2022-11-22 01:27:06,574 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 28 [2022-11-22 01:27:06,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:06,576 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2022-11-22 01:27:06,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-22 01:27:06,577 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2022-11-22 01:27:06,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:27:06,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:06,579 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:06,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:27:06,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:06,786 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:27:06,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:06,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1810277145, now seen corresponding path program 1 times [2022-11-22 01:27:06,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:06,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341110075] [2022-11-22 01:27:06,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:06,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:06,804 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:27:06,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [980143214] [2022-11-22 01:27:06,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:06,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:06,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:27:06,815 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:27:06,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:27:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:06,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-22 01:27:06,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:27:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 01:27:07,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:27:07,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:07,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341110075] [2022-11-22 01:27:07,170 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:27:07,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980143214] [2022-11-22 01:27:07,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980143214] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:27:07,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2114415098] [2022-11-22 01:27:07,173 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-11-22 01:27:07,174 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:27:07,174 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:27:07,174 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:27:07,175 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:27:08,023 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-22 01:27:08,034 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-22 01:27:08,054 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:27:10,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2114415098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:10,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:27:10,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 22 [2022-11-22 01:27:10,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434458077] [2022-11-22 01:27:10,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:10,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:27:10,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:10,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:27:10,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:27:10,007 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-22 01:27:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:10,423 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2022-11-22 01:27:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:27:10,423 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 33 [2022-11-22 01:27:10,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:10,425 INFO L225 Difference]: With dead ends: 69 [2022-11-22 01:27:10,425 INFO L226 Difference]: Without dead ends: 48 [2022-11-22 01:27:10,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:27:10,427 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 62 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:10,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 47 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:27:10,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-22 01:27:10,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-22 01:27:10,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-22 01:27:10,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2022-11-22 01:27:10,454 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 33 [2022-11-22 01:27:10,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:10,454 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2022-11-22 01:27:10,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-22 01:27:10,454 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2022-11-22 01:27:10,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-22 01:27:10,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:10,456 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:10,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:27:10,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:10,662 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:27:10,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:10,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1678681992, now seen corresponding path program 1 times [2022-11-22 01:27:10,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:10,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960848758] [2022-11-22 01:27:10,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:10,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:10,683 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:27:10,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1318145247] [2022-11-22 01:27:10,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:10,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:10,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:27:10,699 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:27:10,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:27:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:10,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-22 01:27:10,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:27:10,865 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-22 01:27:10,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:27:10,975 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-22 01:27:10,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:10,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960848758] [2022-11-22 01:27:10,975 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:27:10,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318145247] [2022-11-22 01:27:10,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318145247] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:27:10,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [313940853] [2022-11-22 01:27:10,979 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-22 01:27:10,979 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:27:10,980 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:27:10,980 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:27:10,981 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:27:23,977 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-22 01:27:23,989 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-22 01:27:24,004 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:27:27,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [313940853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:27,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:27:27,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [7, 6] total 22 [2022-11-22 01:27:27,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332851975] [2022-11-22 01:27:27,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:27,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-22 01:27:27,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:27,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-22 01:27:27,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:27:27,572 INFO L87 Difference]: Start difference. First operand 48 states and 60 transitions. Second operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 8 states have internal predecessors, (13), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2022-11-22 01:27:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:28,294 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2022-11-22 01:27:28,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:27:28,295 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 10 states have (on average 1.3) internal successors, (13), 8 states have internal predecessors, (13), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 55 [2022-11-22 01:27:28,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:28,296 INFO L225 Difference]: With dead ends: 65 [2022-11-22 01:27:28,297 INFO L226 Difference]: Without dead ends: 63 [2022-11-22 01:27:28,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 125 SyntacticMatches, 18 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:27:28,298 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 56 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:28,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 47 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:27:28,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-22 01:27:28,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2022-11-22 01:27:28,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 35 states have internal predecessors, (38), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-22 01:27:28,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2022-11-22 01:27:28,330 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 55 [2022-11-22 01:27:28,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:28,332 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2022-11-22 01:27:28,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 10 states have (on average 1.3) internal successors, (13), 8 states have internal predecessors, (13), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2022-11-22 01:27:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2022-11-22 01:27:28,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 01:27:28,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:28,338 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:28,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-22 01:27:28,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:28,540 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:27:28,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:28,540 INFO L85 PathProgramCache]: Analyzing trace with hash -2003369438, now seen corresponding path program 1 times [2022-11-22 01:27:28,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:28,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258885792] [2022-11-22 01:27:28,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:28,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:28,557 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:27:28,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741097152] [2022-11-22 01:27:28,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:28,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:27:28,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:27:28,559 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:27:28,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:27:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:28,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-22 01:27:28,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:27:29,502 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 18 proven. 14 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-22 01:27:29,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:27:30,367 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-11-22 01:27:30,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:30,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258885792] [2022-11-22 01:27:30,368 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:27:30,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741097152] [2022-11-22 01:27:30,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741097152] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:27:30,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1655658693] [2022-11-22 01:27:30,377 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-22 01:27:30,377 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:27:30,379 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:27:30,379 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:27:30,379 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:27:35,303 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-11-22 01:27:35,365 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-22 01:27:35,383 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:28:14,560 WARN L233 SmtUtils]: Spent 34.64s on a formula simplification. DAG size of input: 179 DAG size of output: 146 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:28:30,430 WARN L233 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:28:42,454 WARN L233 SmtUtils]: Spent 10.50s on a formula simplification. DAG size of input: 77 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:29:01,161 WARN L233 SmtUtils]: Spent 13.48s on a formula simplification. DAG size of input: 177 DAG size of output: 84 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:29:01,282 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2094#(and (<= |#NULL.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:29:01,282 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:29:01,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:29:01,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-11-22 01:29:01,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226906091] [2022-11-22 01:29:01,283 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:29:01,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-22 01:29:01,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:01,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-22 01:29:01,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=1436, Unknown=0, NotChecked=0, Total=1640 [2022-11-22 01:29:01,285 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand has 21 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 15 states have internal predecessors, (32), 13 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2022-11-22 01:29:09,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:09,083 INFO L93 Difference]: Finished difference Result 180 states and 265 transitions. [2022-11-22 01:29:09,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-22 01:29:09,083 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 15 states have internal predecessors, (32), 13 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 74 [2022-11-22 01:29:09,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:09,087 INFO L225 Difference]: With dead ends: 180 [2022-11-22 01:29:09,087 INFO L226 Difference]: Without dead ends: 178 [2022-11-22 01:29:09,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 171 SyntacticMatches, 10 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1747 ImplicationChecksByTransitivity, 89.8s TimeCoverageRelationStatistics Valid=619, Invalid=3937, Unknown=0, NotChecked=0, Total=4556 [2022-11-22 01:29:09,093 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 152 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:09,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 587 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 01:29:09,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-22 01:29:09,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 129. [2022-11-22 01:29:09,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 71 states have internal predecessors, (84), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2022-11-22 01:29:09,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 181 transitions. [2022-11-22 01:29:09,219 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 181 transitions. Word has length 74 [2022-11-22 01:29:09,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:09,220 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 181 transitions. [2022-11-22 01:29:09,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 15 states have internal predecessors, (32), 13 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2022-11-22 01:29:09,220 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 181 transitions. [2022-11-22 01:29:09,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-22 01:29:09,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:09,224 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:09,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-22 01:29:09,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-22 01:29:09,431 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:29:09,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:09,431 INFO L85 PathProgramCache]: Analyzing trace with hash -134461569, now seen corresponding path program 1 times [2022-11-22 01:29:09,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:09,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885710886] [2022-11-22 01:29:09,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:09,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:09,449 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:29:09,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [374611588] [2022-11-22 01:29:09,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:09,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:09,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:09,451 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:29:09,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:29:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:09,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-22 01:29:09,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:29:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 54 proven. 22 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-22 01:29:10,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:29:10,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:10,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885710886] [2022-11-22 01:29:10,635 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:29:10,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374611588] [2022-11-22 01:29:10,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374611588] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:29:10,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1436444499] [2022-11-22 01:29:10,647 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-22 01:29:10,647 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:29:10,647 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:29:10,647 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:29:10,648 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:29:16,032 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-22 01:29:16,036 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-22 01:29:16,050 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:29:42,193 WARN L233 SmtUtils]: Spent 21.29s on a formula simplification. DAG size of input: 83 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:30:03,229 WARN L233 SmtUtils]: Spent 20.04s on a formula simplification. DAG size of input: 85 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:30:04,345 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2958#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:30:04,345 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:30:04,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:30:04,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2022-11-22 01:30:04,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531381113] [2022-11-22 01:30:04,346 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-22 01:30:04,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:30:04,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:04,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:30:04,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1350, Unknown=0, NotChecked=0, Total=1560 [2022-11-22 01:30:04,348 INFO L87 Difference]: Start difference. First operand 129 states and 181 transitions. Second operand has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 7 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-22 01:30:05,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:05,406 INFO L93 Difference]: Finished difference Result 168 states and 234 transitions. [2022-11-22 01:30:05,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:30:05,406 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 7 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 79 [2022-11-22 01:30:05,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:05,410 INFO L225 Difference]: With dead ends: 168 [2022-11-22 01:30:05,410 INFO L226 Difference]: Without dead ends: 164 [2022-11-22 01:30:05,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 128 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 49.0s TimeCoverageRelationStatistics Valid=257, Invalid=1723, Unknown=0, NotChecked=0, Total=1980 [2022-11-22 01:30:05,412 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 56 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:05,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 117 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:30:05,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-22 01:30:05,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2022-11-22 01:30:05,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 87 states have (on average 1.206896551724138) internal successors, (105), 89 states have internal predecessors, (105), 61 states have call successors, (61), 13 states have call predecessors, (61), 13 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2022-11-22 01:30:05,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 226 transitions. [2022-11-22 01:30:05,503 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 226 transitions. Word has length 79 [2022-11-22 01:30:05,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:05,503 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 226 transitions. [2022-11-22 01:30:05,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 7 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-22 01:30:05,504 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 226 transitions. [2022-11-22 01:30:05,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 01:30:05,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:05,506 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 6, 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, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:05,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:05,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:05,711 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:30:05,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:05,711 INFO L85 PathProgramCache]: Analyzing trace with hash -302322165, now seen corresponding path program 1 times [2022-11-22 01:30:05,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:05,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310870010] [2022-11-22 01:30:05,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:05,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:05,725 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:30:05,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796915799] [2022-11-22 01:30:05,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:05,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:05,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:05,727 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:05,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:30:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:05,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:30:05,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 97 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-11-22 01:30:05,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:06,119 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-22 01:30:06,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:06,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310870010] [2022-11-22 01:30:06,120 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:30:06,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796915799] [2022-11-22 01:30:06,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796915799] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:06,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1377124396] [2022-11-22 01:30:06,122 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-22 01:30:06,123 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:30:06,123 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:30:06,123 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:30:06,124 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:30:09,969 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 32 for LOIs [2022-11-22 01:30:10,012 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-22 01:30:10,025 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:30:36,574 WARN L233 SmtUtils]: Spent 24.05s on a formula simplification. DAG size of input: 175 DAG size of output: 142 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:30:46,808 WARN L233 SmtUtils]: Spent 7.72s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:30:57,929 WARN L233 SmtUtils]: Spent 9.41s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:30:57,991 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4023#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:30:57,991 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:30:57,991 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:30:57,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2022-11-22 01:30:57,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897263985] [2022-11-22 01:30:57,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:30:57,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:30:57,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:57,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:30:57,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=679, Unknown=0, NotChecked=0, Total=812 [2022-11-22 01:30:57,993 INFO L87 Difference]: Start difference. First operand 162 states and 226 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 7 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2022-11-22 01:30:58,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:58,274 INFO L93 Difference]: Finished difference Result 175 states and 239 transitions. [2022-11-22 01:30:58,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:30:58,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 7 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 85 [2022-11-22 01:30:58,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:58,276 INFO L225 Difference]: With dead ends: 175 [2022-11-22 01:30:58,276 INFO L226 Difference]: Without dead ends: 88 [2022-11-22 01:30:58,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 212 SyntacticMatches, 14 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 48.1s TimeCoverageRelationStatistics Valid=171, Invalid=885, Unknown=0, NotChecked=0, Total=1056 [2022-11-22 01:30:58,278 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 20 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:58,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 110 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:30:58,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-22 01:30:58,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-11-22 01:30:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 53 states have internal predecessors, (54), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2022-11-22 01:30:58,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 103 transitions. [2022-11-22 01:30:58,328 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 103 transitions. Word has length 85 [2022-11-22 01:30:58,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:58,329 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 103 transitions. [2022-11-22 01:30:58,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 7 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2022-11-22 01:30:58,330 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 103 transitions. [2022-11-22 01:30:58,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 01:30:58,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:58,331 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:30:58,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:58,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:58,542 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:30:58,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:58,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1410474080, now seen corresponding path program 2 times [2022-11-22 01:30:58,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:58,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613770151] [2022-11-22 01:30:58,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:58,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:58,555 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:30:58,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970734902] [2022-11-22 01:30:58,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:30:58,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:58,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:58,557 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:58,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:30:58,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-22 01:30:58,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:30:58,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-22 01:30:58,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 74 proven. 23 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-11-22 01:30:58,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:30:58,989 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 26 proven. 25 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-11-22 01:30:58,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:58,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613770151] [2022-11-22 01:30:58,989 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:30:58,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970734902] [2022-11-22 01:30:58,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970734902] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:30:58,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [70591774] [2022-11-22 01:30:58,992 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-22 01:30:58,992 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:30:58,993 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:30:58,993 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:30:58,993 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:31:04,754 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-22 01:31:04,758 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-22 01:31:04,772 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:31:21,193 WARN L233 SmtUtils]: Spent 11.48s on a formula simplification. DAG size of input: 83 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:31:43,426 WARN L233 SmtUtils]: Spent 20.66s on a formula simplification. DAG size of input: 85 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:31:44,221 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5068#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:31:44,222 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:31:44,222 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:31:44,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 13 [2022-11-22 01:31:44,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820905574] [2022-11-22 01:31:44,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:31:44,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:31:44,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:44,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:31:44,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=959, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 01:31:44,224 INFO L87 Difference]: Start difference. First operand 88 states and 103 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 10 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 9 states have call predecessors, (32), 10 states have call successors, (32) [2022-11-22 01:31:44,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:44,926 INFO L93 Difference]: Finished difference Result 111 states and 136 transitions. [2022-11-22 01:31:44,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:31:44,927 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 10 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 9 states have call predecessors, (32), 10 states have call successors, (32) Word has length 101 [2022-11-22 01:31:44,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:44,928 INFO L225 Difference]: With dead ends: 111 [2022-11-22 01:31:44,928 INFO L226 Difference]: Without dead ends: 92 [2022-11-22 01:31:44,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 249 SyntacticMatches, 20 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 39.7s TimeCoverageRelationStatistics Valid=281, Invalid=1789, Unknown=0, NotChecked=0, Total=2070 [2022-11-22 01:31:44,930 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 50 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:44,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 226 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:31:44,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-22 01:31:44,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-22 01:31:44,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 49 states have (on average 1.0408163265306123) internal successors, (51), 50 states have internal predecessors, (51), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-22 01:31:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 114 transitions. [2022-11-22 01:31:44,989 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 114 transitions. Word has length 101 [2022-11-22 01:31:44,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:44,990 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 114 transitions. [2022-11-22 01:31:44,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 10 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (32), 9 states have call predecessors, (32), 10 states have call successors, (32) [2022-11-22 01:31:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 114 transitions. [2022-11-22 01:31:44,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-22 01:31:44,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:44,993 INFO L195 NwaCegarLoop]: trace histogram [25, 24, 24, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:31:45,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:31:45,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:45,199 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:31:45,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:45,200 INFO L85 PathProgramCache]: Analyzing trace with hash -473865058, now seen corresponding path program 2 times [2022-11-22 01:31:45,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:45,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498414118] [2022-11-22 01:31:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:45,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:45,210 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:31:45,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [751054591] [2022-11-22 01:31:45,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:31:45,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:45,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:45,212 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:45,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:31:45,306 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-22 01:31:45,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:31:45,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-22 01:31:45,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:46,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 120 proven. 38 refuted. 0 times theorem prover too weak. 1116 trivial. 0 not checked. [2022-11-22 01:31:46,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:09,775 WARN L859 $PredicateComparison]: unable to prove that (and (or (not (= |c___VERIFIER_assert_#in~cond| 1)) (forall ((|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| Int) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259| Int)) (or (<= |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| 0) (= (+ (* |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388|) (* |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280|)) (+ (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) (* |v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|))) (= (mod (* |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338|) 0)))) (not (= |c___VERIFIER_assert_#in~cond| 0))) is different from true [2022-11-22 01:32:49,991 WARN L233 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:33:04,022 WARN L859 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 1)) (forall ((|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| Int) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259| Int)) (or (<= |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| 0) (= (+ (* |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388|) (* |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280|)) (+ (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) (* |v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|))) (= (mod (* |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338|) 0)))) is different from true [2022-11-22 01:33:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 126 proven. 36 refuted. 9 times theorem prover too weak. 1102 trivial. 1 not checked. [2022-11-22 01:33:04,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:33:04,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498414118] [2022-11-22 01:33:04,741 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:33:04,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751054591] [2022-11-22 01:33:04,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751054591] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:33:04,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1951680373] [2022-11-22 01:33:04,743 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-22 01:33:04,743 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:33:04,743 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:33:04,743 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:33:04,744 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:33:09,225 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-22 01:33:09,229 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-22 01:33:09,241 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:33:27,507 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 83 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:33:43,380 WARN L233 SmtUtils]: Spent 10.98s on a formula simplification. DAG size of input: 85 DAG size of output: 76 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:33:43,993 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6414#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:33:43,993 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:33:43,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:33:43,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 25 [2022-11-22 01:33:43,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111637434] [2022-11-22 01:33:43,994 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:33:43,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-22 01:33:43,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:33:43,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-22 01:33:43,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1579, Unknown=7, NotChecked=166, Total=1980 [2022-11-22 01:33:43,997 INFO L87 Difference]: Start difference. First operand 92 states and 114 transitions. Second operand has 25 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 20 states have internal predecessors, (41), 11 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) [2022-11-22 01:33:46,628 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 [1] [2022-11-22 01:33:46,796 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| 1))) (and (or (not .cse0) (forall ((|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| Int) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259| Int)) (or (<= |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| 0) (= (+ (* |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388|) (* |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280|)) (+ (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) (* |v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|))) (= (mod (* |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338|) 0)))) .cse0)) is different from false [2022-11-22 01:33:48,802 WARN L837 $PredicateComparison]: unable to prove that (and (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond) (= c___VERIFIER_assert_~cond 1) (or (and (or (not (= |c___VERIFIER_assert_#in~cond| 1)) (forall ((|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| Int) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259| Int)) (or (<= |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| 0) (= (+ (* |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388|) (* |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280|)) (+ (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) (* |v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|))) (= (mod (* |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338|) 0)))) (not (= |c___VERIFIER_assert_#in~cond| 0))) (= c___VERIFIER_assert_~cond 0))) is different from false [2022-11-22 01:33:51,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2022-11-22 01:33:53,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2022-11-22 01:33:57,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2022-11-22 01:33:59,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2022-11-22 01:34:01,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2022-11-22 01:34:03,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2022-11-22 01:34:05,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2022-11-22 01:34:10,016 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 [1] [2022-11-22 01:35:00,154 WARN L233 SmtUtils]: Spent 42.07s on a formula simplification. DAG size of input: 35 DAG size of output: 30 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:35:00,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:00,156 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2022-11-22 01:35:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 01:35:00,156 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 20 states have internal predecessors, (41), 11 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) Word has length 162 [2022-11-22 01:35:00,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:00,157 INFO L225 Difference]: With dead ends: 98 [2022-11-22 01:35:00,157 INFO L226 Difference]: Without dead ends: 94 [2022-11-22 01:35:00,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 411 SyntacticMatches, 32 SemanticMatches, 50 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2014 ImplicationChecksByTransitivity, 112.6s TimeCoverageRelationStatistics Valid=277, Invalid=1980, Unknown=15, NotChecked=380, Total=2652 [2022-11-22 01:35:00,158 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 38 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 46 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:00,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 103 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 322 Invalid, 9 Unknown, 91 Unchecked, 18.8s Time] [2022-11-22 01:35:00,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-22 01:35:00,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-11-22 01:35:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 51 states have internal predecessors, (52), 32 states have call successors, (32), 11 states have call predecessors, (32), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-22 01:35:00,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 115 transitions. [2022-11-22 01:35:00,210 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 115 transitions. Word has length 162 [2022-11-22 01:35:00,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:00,211 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 115 transitions. [2022-11-22 01:35:00,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 20 states have internal predecessors, (41), 11 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) [2022-11-22 01:35:00,211 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 115 transitions. [2022-11-22 01:35:00,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-22 01:35:00,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:00,214 INFO L195 NwaCegarLoop]: trace histogram [26, 25, 25, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:00,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:35:00,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 01:35:00,416 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:35:00,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:00,417 INFO L85 PathProgramCache]: Analyzing trace with hash 362287747, now seen corresponding path program 3 times [2022-11-22 01:35:00,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:00,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84906450] [2022-11-22 01:35:00,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:00,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:00,433 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:35:00,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705675898] [2022-11-22 01:35:00,434 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:35:00,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:35:00,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:35:00,435 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:35:00,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 01:35:00,561 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:35:00,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:35:00,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-22 01:35:00,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:35:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1372 backedges. 146 proven. 95 refuted. 0 times theorem prover too weak. 1131 trivial. 0 not checked. [2022-11-22 01:35:00,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:35:01,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1372 backedges. 70 proven. 77 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2022-11-22 01:35:01,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:01,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84906450] [2022-11-22 01:35:01,151 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:35:01,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705675898] [2022-11-22 01:35:01,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705675898] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:35:01,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [753808162] [2022-11-22 01:35:01,154 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-22 01:35:01,154 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:35:01,155 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:35:01,155 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:35:01,155 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:35:05,634 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-22 01:35:05,638 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-22 01:35:05,653 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:35:48,288 WARN L233 SmtUtils]: Spent 40.99s on a formula simplification. DAG size of input: 175 DAG size of output: 146 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:36:00,496 WARN L233 SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:36:18,838 WARN L233 SmtUtils]: Spent 16.57s on a formula simplification that was a NOOP. DAG size: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:36:38,930 WARN L233 SmtUtils]: Spent 17.48s on a formula simplification. DAG size of input: 173 DAG size of output: 82 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:36:39,233 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7759#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:36:39,234 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:36:39,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:36:39,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-11-22 01:36:39,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66211111] [2022-11-22 01:36:39,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:36:39,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-22 01:36:39,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:39,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-22 01:36:39,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1335, Unknown=0, NotChecked=0, Total=1560 [2022-11-22 01:36:39,237 INFO L87 Difference]: Start difference. First operand 94 states and 115 transitions. Second operand has 19 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 19 states have internal predecessors, (46), 18 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (62), 17 states have call predecessors, (62), 18 states have call successors, (62) [2022-11-22 01:36:39,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:39,895 INFO L93 Difference]: Finished difference Result 94 states and 115 transitions. [2022-11-22 01:36:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:36:39,896 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 19 states have internal predecessors, (46), 18 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (62), 17 states have call predecessors, (62), 18 states have call successors, (62) Word has length 167 [2022-11-22 01:36:39,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:39,897 INFO L225 Difference]: With dead ends: 94 [2022-11-22 01:36:39,897 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:36:39,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 460 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 93.9s TimeCoverageRelationStatistics Valid=323, Invalid=1839, Unknown=0, NotChecked=0, Total=2162 [2022-11-22 01:36:39,899 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 59 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:39,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 163 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:36:39,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:36:39,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:36:39,901 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) [2022-11-22 01:36:39,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:36:39,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 167 [2022-11-22 01:36:39,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:39,901 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:36:39,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 19 states have internal predecessors, (46), 18 states have call successors, (62), 2 states have call predecessors, (62), 3 states have return successors, (62), 17 states have call predecessors, (62), 18 states have call successors, (62) [2022-11-22 01:36:39,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:36:39,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:36:39,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:36:39,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:36:40,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-22 01:36:40,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:39:05,186 WARN L233 SmtUtils]: Spent 2.34m on a formula simplification. DAG size of input: 91 DAG size of output: 77 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-22 01:39:17,368 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|))) (= (select .cse0 1) 0) (let ((.cse1 (= (select |#length| 3) 12)) (.cse2 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse3 (= 11 (select |#length| 2))) (.cse4 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse6 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1)) 1 0) 0))) (.cse7 (= (select |#valid| 1) 1)) (.cse8 (= (select |#valid| 0) 0)) (.cse9 (= (select |#valid| 2) 1)) (.cse10 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse11 (= (select .cse0 0) 48))) (or (and .cse1 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0))) .cse2 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~k~0#1| 0) .cse7 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse11) (let ((.cse12 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse13 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (= |ULTIMATE.start_main_~k~0#1| 1) .cse1 .cse2 (not (= (ite (= (+ .cse12 .cse13) |ULTIMATE.start_main_~b~0#1|) 1 0) 0)) (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) (not (= (ite (= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~a~0#1|) 1 0) 0)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) |ULTIMATE.start_main_~a~0#1|) (not (= (ite (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse12 .cse13 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))) 1 0) 0)) .cse11)))) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,369 INFO L895 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|))) (= (select .cse0 1) 0) (let ((.cse1 (= (select |#length| 3) 12)) (.cse2 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse3 (= 11 (select |#length| 2))) (.cse4 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse6 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1)) 1 0) 0))) (.cse7 (= (select |#valid| 1) 1)) (.cse8 (= (select |#valid| 0) 0)) (.cse9 (= (select |#valid| 2) 1)) (.cse10 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse11 (= (select .cse0 0) 48))) (or (and .cse1 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0))) .cse2 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~k~0#1| 0) .cse7 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse11) (let ((.cse12 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse13 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (= |ULTIMATE.start_main_~k~0#1| 1) .cse1 .cse2 (not (= (ite (= (+ .cse12 .cse13) |ULTIMATE.start_main_~b~0#1|) 1 0) 0)) (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) (not (= (ite (= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~a~0#1|) 1 0) 0)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) |ULTIMATE.start_main_~a~0#1|) (not (= (ite (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse12 .cse13 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))) 1 0) 0)) .cse11)))) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,369 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:39:17,370 INFO L895 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1)) 1 0) 0)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,370 INFO L895 garLoopResultBuilder]: At program point L24-1(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1)) 1 0) 0)) (= (select |#valid| 1) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,370 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|))) (= (select .cse0 1) 0) (let ((.cse1 (= (select |#length| 3) 12)) (.cse2 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse3 (= 11 (select |#length| 2))) (.cse4 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse6 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1)) 1 0) 0))) (.cse7 (= (select |#valid| 1) 1)) (.cse8 (= (select |#valid| 0) 0)) (.cse9 (= (select |#valid| 2) 1)) (.cse10 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse11 (= (select .cse0 0) 48))) (or (and .cse1 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0))) .cse2 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~k~0#1| 0) .cse7 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse11) (let ((.cse12 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse13 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (= |ULTIMATE.start_main_~k~0#1| 1) .cse1 .cse2 (not (= (ite (= (+ .cse12 .cse13) |ULTIMATE.start_main_~b~0#1|) 1 0) 0)) (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) (not (= (ite (= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~a~0#1|) 1 0) 0)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) |ULTIMATE.start_main_~a~0#1|) (not (= (ite (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse12 .cse13 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))) 1 0) 0)) .cse11)))) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,371 INFO L895 garLoopResultBuilder]: At program point L41-1(lines 39 68) the Hoare annotation is: (let ((.cse16 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse2 (= 11 (select |#length| 2))) (.cse3 (= 2 (select |#length| 1))) (.cse4 (= (select |#valid| 3) 1)) (.cse5 (<= |ULTIMATE.start_main_~x~0#1| 1)) (.cse6 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse7 (= (select |#valid| 1) 1)) (.cse8 (<= |ULTIMATE.start_main_~y~0#1| 1)) (.cse9 (= (select |#valid| 0) 0)) (.cse10 (= (select |#valid| 2) 1)) (.cse11 (= |#NULL.offset| 0)) (.cse12 (= (select .cse16 0) 48)) (.cse13 (= (select .cse16 1) 0)) (.cse14 (< 0 |#StackHeapBarrier|)) (.cse15 (= |#NULL.base| 0))) (or (and (= |ULTIMATE.start_main_~c~0#1| 0) .cse0 .cse1 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) .cse5 .cse6 .cse7 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) .cse8) 1 0) 0)) .cse9 .cse10 .cse11 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse12 .cse13 (= |ULTIMATE.start_main_~s~0#1| 1) .cse14 .cse15) (and (<= 0 |ULTIMATE.start_main_~b~0#1|) .cse0 .cse1 (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) .cse2 .cse3 .cse4 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) .cse5) 1 0) 0)) (<= |ULTIMATE.start_main_~c~0#1| 0) .cse6 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) .cse7 (= |ULTIMATE.start_main_~r~0#1| 1) .cse8 .cse9 .cse10 .cse11 .cse12 (= (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) 0) .cse13 .cse14 .cse15)))) [2022-11-22 01:39:17,371 INFO L895 garLoopResultBuilder]: At program point L41-2(lines 41 68) the Hoare annotation is: (let ((.cse0 (* 2 |ULTIMATE.start_main_~b~0#1|)) (.cse1 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (= |ULTIMATE.start_main_~p~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) (or (not (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|)) (< .cse0 (+ |ULTIMATE.start_main_~a~0#1| 1))) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1)) 1 0) 0)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~r~0#1| 1) (<= |ULTIMATE.start_main_~y~0#1| 1) (< .cse0 (+ |ULTIMATE.start_main_~c~0#1| 1)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse1 0) 48) (= (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) 0) (= (select .cse1 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,372 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:39:17,372 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,373 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|))) (= (select .cse0 1) 0) (let ((.cse1 (= (select |#length| 3) 12)) (.cse2 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse3 (= 11 (select |#length| 2))) (.cse4 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse6 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1)) 1 0) 0))) (.cse7 (= (select |#valid| 1) 1)) (.cse8 (= (select |#valid| 0) 0)) (.cse9 (= (select |#valid| 2) 1)) (.cse10 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse11 (= (select .cse0 0) 48))) (or (and .cse1 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0))) .cse2 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~k~0#1| 0) .cse7 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse11) (let ((.cse12 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse13 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (= |ULTIMATE.start_main_~k~0#1| 1) .cse1 .cse2 (not (= (ite (= (+ .cse12 .cse13) |ULTIMATE.start_main_~b~0#1|) 1 0) 0)) (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) (not (= (ite (= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~a~0#1|) 1 0) 0)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) |ULTIMATE.start_main_~a~0#1|) (not (= (ite (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse12 .cse13 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))) 1 0) 0)) .cse11)))) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,373 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 43) no Hoare annotation was computed. [2022-11-22 01:39:17,374 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse3 (* 2 |ULTIMATE.start_main_~b~0#1|)) (.cse7 (select |#memory_int| 1)) (.cse5 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse6 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse2 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse4 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|))) (and (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (= |ULTIMATE.start_main_~p~0#1| 0) (or (= (+ .cse0 .cse1) .cse2) (not (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|)) (< .cse3 (+ |ULTIMATE.start_main_~a~0#1| 1))) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (or (not .cse4) (= (+ .cse5 .cse6 .cse0 .cse1) .cse2) (< .cse3 (+ |ULTIMATE.start_main_~c~0#1| 1))) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1)) 1 0) 0)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~r~0#1| 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse7 0) 48) (= (select .cse7 1) 0) (or (= (+ .cse5 .cse6) .cse2) .cse4) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,374 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~c~0#1| 0) (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,375 INFO L895 garLoopResultBuilder]: At program point L38-1(line 38) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~c~0#1| 0) (= (select |#length| 3) 12) (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0)) (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (select |#valid| 1) 1) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,375 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-11-22 01:39:17,375 INFO L895 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,375 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2022-11-22 01:39:17,376 INFO L899 garLoopResultBuilder]: For program point L51(lines 47 56) no Hoare annotation was computed. [2022-11-22 01:39:17,377 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 56) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~c~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~k~0#1|))) (= (select .cse0 1) 0) (let ((.cse1 (= (select |#length| 3) 12)) (.cse2 (not (= (ite (<= 1 |ULTIMATE.start_main_~y~0#1|) 1 0) 0))) (.cse3 (= 11 (select |#length| 2))) (.cse4 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse6 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 1)) 1 0) 0))) (.cse7 (= (select |#valid| 1) 1)) (.cse8 (= (select |#valid| 0) 0)) (.cse9 (= (select |#valid| 2) 1)) (.cse10 (= |ULTIMATE.start_main_~xy~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse11 (= (select .cse0 0) 48))) (or (and .cse1 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0))) .cse2 (= |ULTIMATE.start_main_~yy~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~k~0#1| 0) .cse7 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1)) 1 0) 0)) .cse8 .cse9 .cse10 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse11) (let ((.cse12 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse13 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (= |ULTIMATE.start_main_~k~0#1| 1) .cse1 .cse2 (not (= (ite (= (+ .cse12 .cse13) |ULTIMATE.start_main_~b~0#1|) 1 0) 0)) (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~a~0#1|) (not (= (ite (= (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~a~0#1|) 1 0) 0)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) |ULTIMATE.start_main_~a~0#1|) (not (= (ite (= (+ (* |ULTIMATE.start_main_~xy~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~yy~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~b~0#1|) (+ .cse12 .cse13 (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))) 1 0) 0)) .cse11)))) (= |ULTIMATE.start_main_~s~0#1| 1) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-22 01:39:17,378 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 56) no Hoare annotation was computed. [2022-11-22 01:39:17,378 INFO L902 garLoopResultBuilder]: At program point L72(line 72) the Hoare annotation is: true [2022-11-22 01:39:17,378 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 7 9) the Hoare annotation is: true [2022-11-22 01:39:17,378 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2022-11-22 01:39:17,379 INFO L895 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 10 16) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (exists ((|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| Int) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259| Int)) (and (not (= (mod (* |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338|) 0)) (not (<= |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| 0)) (not (= (+ (* |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388|) (* |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280|)) (+ (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) (* |v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|)))))) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= |__VERIFIER_assert_#in~cond| 1)) (not (< 0 |#StackHeapBarrier|)) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (forall ((|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| Int) (|v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| Int) (|v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| Int) (|v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259| Int)) (or (<= |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| 0) (= (+ (* |v_ULTIMATE.start_main_~r~0#1_BEFORE_CALL_280| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388|) (* |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~p~0#1_BEFORE_CALL_280|)) (+ (* |v_ULTIMATE.start_main_~q~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_413| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) (* |v_ULTIMATE.start_main_~s~0#1_BEFORE_CALL_253| |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_388| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|))) (= (mod (* |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338| |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_259|) |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_338|) 0))) (not (= (select |#valid| 2) 1)) (not (= 11 (select |#length| 2))))) [2022-11-22 01:39:17,379 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2022-11-22 01:39:17,379 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2022-11-22 01:39:17,379 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 16) no Hoare annotation was computed. [2022-11-22 01:39:17,379 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 16) no Hoare annotation was computed. [2022-11-22 01:39:17,379 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2022-11-22 01:39:17,383 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:39:17,385 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:39:17,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:39:17 BoogieIcfgContainer [2022-11-22 01:39:17,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:39:17,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:39:17,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:39:17,413 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:39:17,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:27:01" (3/4) ... [2022-11-22 01:39:17,417 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:39:17,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-22 01:39:17,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-22 01:39:17,430 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-22 01:39:17,430 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-22 01:39:17,430 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 01:39:17,431 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:39:17,480 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:39:17,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:39:17,481 INFO L158 Benchmark]: Toolchain (without parser) took 736874.17ms. Allocated memory was 127.9MB in the beginning and 599.8MB in the end (delta: 471.9MB). Free memory was 85.3MB in the beginning and 275.5MB in the end (delta: -190.1MB). Peak memory consumption was 283.3MB. Max. memory is 16.1GB. [2022-11-22 01:39:17,482 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:39:17,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.06ms. Allocated memory is still 127.9MB. Free memory was 85.0MB in the beginning and 74.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:39:17,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.35ms. Allocated memory is still 127.9MB. Free memory was 74.3MB in the beginning and 72.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:39:17,483 INFO L158 Benchmark]: Boogie Preprocessor took 58.40ms. Allocated memory is still 127.9MB. Free memory was 72.7MB in the beginning and 71.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:39:17,484 INFO L158 Benchmark]: RCFGBuilder took 460.60ms. Allocated memory is still 127.9MB. Free memory was 71.3MB in the beginning and 58.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:39:17,484 INFO L158 Benchmark]: TraceAbstraction took 735837.67ms. Allocated memory was 127.9MB in the beginning and 599.8MB in the end (delta: 471.9MB). Free memory was 57.8MB in the beginning and 278.6MB in the end (delta: -220.8MB). Peak memory consumption was 325.6MB. Max. memory is 16.1GB. [2022-11-22 01:39:17,485 INFO L158 Benchmark]: Witness Printer took 67.81ms. Allocated memory is still 599.8MB. Free memory was 278.6MB in the beginning and 275.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:39:17,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.06ms. Allocated memory is still 127.9MB. Free memory was 85.0MB in the beginning and 74.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.35ms. Allocated memory is still 127.9MB. Free memory was 74.3MB in the beginning and 72.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.40ms. Allocated memory is still 127.9MB. Free memory was 72.7MB in the beginning and 71.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.60ms. Allocated memory is still 127.9MB. Free memory was 71.3MB in the beginning and 58.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 735837.67ms. Allocated memory was 127.9MB in the beginning and 599.8MB in the end (delta: 471.9MB). Free memory was 57.8MB in the beginning and 278.6MB in the end (delta: -220.8MB). Peak memory consumption was 325.6MB. Max. memory is 16.1GB. * Witness Printer took 67.81ms. Allocated memory is still 599.8MB. Free memory was 278.6MB in the beginning and 275.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 735.7s, OverallIterations: 11, TraceHistogramMax: 26, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 88.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 157.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 609 SdHoareTripleChecker+Valid, 26.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 548 mSDsluCounter, 1587 SdHoareTripleChecker+Invalid, 25.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 91 IncrementalHoareTripleChecker+Unchecked, 1161 mSDsCounter, 714 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3059 IncrementalHoareTripleChecker+Invalid, 3873 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 714 mSolverCounterUnsat, 426 mSDtfsCounter, 3059 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2384 GetRequests, 1930 SyntacticMatches, 111 SemanticMatches, 343 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 6992 ImplicationChecksByTransitivity, 440.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=7, InterpolantAutomatonStates: 148, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 52 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 105 PreInvPairs, 140 NumberOfFragments, 2637 HoareAnnotationTreeSize, 105 FomulaSimplifications, 1007 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 17 FomulaSimplificationsInter, 14327 FormulaSimplificationTreeSizeReductionInter, 156.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 84.5s InterpolantComputationTime, 837 NumberOfCodeBlocks, 695 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1517 ConstructedInterpolants, 4 QuantifiedInterpolants, 7304 SizeOfPredicates, 64 NumberOfNonLiveVariables, 2015 ConjunctsInSsa, 241 ConjunctsInUnsatCore, 19 InterpolantComputations, 2 PerfectInterpolantSequences, 7040/7440 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: 15.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 91, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 42, TOOLS_POST_TIME: 0.4s, TOOLS_POST_CALL_APPLICATIONS: 86, TOOLS_POST_CALL_TIME: 11.8s, TOOLS_POST_RETURN_APPLICATIONS: 62, TOOLS_POST_RETURN_TIME: 1.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 190, TOOLS_QUANTIFIERELIM_TIME: 13.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.6s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 209, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 104, DOMAIN_JOIN_TIME: 1.6s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 91, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 5.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 5.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 62, CALL_SUMMARIZER_CACHE_MISSES: 5, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1096, DAG_COMPRESSION_RETAINED_NODES: 209, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((((((r == 0 && q == 0) && #NULL == 0) && x == c + b * k) && unknown-#memory_int-unknown[1][1] == 0) && ((((((((((((((((((unknown-#length-unknown[3] == 12 && !(0 == (if 1 <= x then 1 else 0))) && !((if 1 <= y then 1 else 0) == 0)) && yy == y * y) && p == 1) && b == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && !((if 0 <= x && x <= 1 then 1 else 0) == 0)) && k == 0) && \valid[1] == 1) && !((if 0 <= y && y <= 1 then 1 else 0) == 0)) && \valid[0] == 0) && \valid[2] == 1) && xy == x * y) && a == x) && unknown-#memory_int-unknown[1][0] == 48) || ((((((((((((((((k == 1 && unknown-#length-unknown[3] == 12) && !((if 1 <= y then 1 else 0) == 0)) && !((if s * y + q * x == b then 1 else 0) == 0)) && b <= a) && !((if r * y + p * x == a then 1 else 0) == 0)) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && !((if 0 <= x && x <= 1 then 1 else 0) == 0)) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && xy == x * y) && b + c == a) && !((if xy * q + yy * s + b == s * y + q * x + b * y then 1 else 0) == 0)) && unknown-#memory_int-unknown[1][0] == 48))) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((c == 0 && unknown-#length-unknown[3] == 12) && !((if 1 <= y then 1 else 0) == 0)) && yy == y * y) && p == 1) && b == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && r == 0) && q == 0) && k == 0) && x <= 1) && 1 <= x) && \valid[1] == 1) && !((if 0 <= y && y <= 1 then 1 else 0) == 0)) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && xy == x * y) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((((((0 <= b && unknown-#length-unknown[3] == 12) && !((if 1 <= y then 1 else 0) == 0)) && p == 0) && a == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && !((if 0 <= x && x <= 1 then 1 else 0) == 0)) && c <= 0) && 1 <= x) && b <= c) && \valid[1] == 1) && r == 1) && y <= 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && s * y + q * x == 0) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-22 01:39:17,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52d4418a-4543-46f1-a416-8ea0c30d9a43/bin/utaipan-g80aRyZoba/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