./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI --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 bda512f5ab4e84c08e80fd02a1c07c8fba5ca60aa45d55edfde2cc268dd1288e --- 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-5e519f3 [2022-11-03 02:22:27,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:22:27,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:22:27,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:22:27,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:22:27,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:22:27,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:22:27,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:22:27,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:22:27,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:22:27,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:22:27,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:22:27,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:22:27,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:22:27,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:22:27,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:22:27,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:22:27,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:22:27,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:22:27,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:22:27,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:22:27,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:22:27,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:22:27,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:22:27,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:22:27,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:22:27,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:22:27,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:22:27,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:22:27,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:22:27,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:22:27,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:22:27,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:22:27,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:22:27,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:22:27,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:22:27,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:22:27,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:22:27,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:22:27,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:22:27,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:22:27,557 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:22:27,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:22:27,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:22:27,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:22:27,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:22:27,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:22:27,602 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:22:27,602 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:22:27,602 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:22:27,602 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:22:27,602 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:22:27,603 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:22:27,604 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:22:27,604 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:22:27,604 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:22:27,604 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:22:27,605 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:22:27,605 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:22:27,605 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:22:27,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:22:27,606 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:22:27,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:22:27,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:22:27,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:22:27,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:22:27,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:22:27,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:22:27,607 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:22:27,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:22:27,608 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:22:27,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:22:27,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:22:27,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:22:27,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:22:27,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:22:27,609 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:22:27,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:22:27,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:22:27,610 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:22:27,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:22:27,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:22:27,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:22:27,611 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_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bda512f5ab4e84c08e80fd02a1c07c8fba5ca60aa45d55edfde2cc268dd1288e [2022-11-03 02:22:27,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:22:27,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:22:27,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:22:27,939 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:22:27,940 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:22:27,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2022-11-03 02:22:28,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/data/13a3f0f1c/a632f0422d1d49c89e71021323b4a4c5/FLAGcfb3b0e70 [2022-11-03 02:22:28,451 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:22:28,451 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2022-11-03 02:22:28,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/data/13a3f0f1c/a632f0422d1d49c89e71021323b4a4c5/FLAGcfb3b0e70 [2022-11-03 02:22:28,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/data/13a3f0f1c/a632f0422d1d49c89e71021323b4a4c5 [2022-11-03 02:22:28,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:22:28,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:22:28,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:22:28,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:22:28,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:22:28,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:22:28" (1/1) ... [2022-11-03 02:22:28,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@962be81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:28, skipping insertion in model container [2022-11-03 02:22:28,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:22:28" (1/1) ... [2022-11-03 02:22:28,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:22:28,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:22:29,094 WARN L230 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_1d6bbd16-1e63-4a9b-a0e9-94077807081a/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c[490,503] [2022-11-03 02:22:29,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:22:29,147 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:22:29,166 WARN L230 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_1d6bbd16-1e63-4a9b-a0e9-94077807081a/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c[490,503] [2022-11-03 02:22:29,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:22:29,205 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:22:29,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29 WrapperNode [2022-11-03 02:22:29,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:22:29,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:22:29,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:22:29,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:22:29,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (1/1) ... [2022-11-03 02:22:29,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (1/1) ... [2022-11-03 02:22:29,249 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-11-03 02:22:29,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:22:29,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:22:29,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:22:29,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:22:29,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (1/1) ... [2022-11-03 02:22:29,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (1/1) ... [2022-11-03 02:22:29,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (1/1) ... [2022-11-03 02:22:29,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (1/1) ... [2022-11-03 02:22:29,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (1/1) ... [2022-11-03 02:22:29,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (1/1) ... [2022-11-03 02:22:29,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (1/1) ... [2022-11-03 02:22:29,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (1/1) ... [2022-11-03 02:22:29,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:22:29,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:22:29,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:22:29,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:22:29,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (1/1) ... [2022-11-03 02:22:29,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:22:29,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:29,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:22:29,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:22:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:22:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:22:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:22:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:22:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:22:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:22:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 02:22:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 02:22:29,481 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:22:29,484 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:22:29,649 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:22:29,675 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:22:29,676 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 02:22:29,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:22:29 BoogieIcfgContainer [2022-11-03 02:22:29,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:22:29,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:22:29,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:22:29,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:22:29,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:22:28" (1/3) ... [2022-11-03 02:22:29,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fbf126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:22:29, skipping insertion in model container [2022-11-03 02:22:29,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:22:29" (2/3) ... [2022-11-03 02:22:29,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fbf126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:22:29, skipping insertion in model container [2022-11-03 02:22:29,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:22:29" (3/3) ... [2022-11-03 02:22:29,703 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound2.c [2022-11-03 02:22:29,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:22:29,727 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:22:29,785 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:22:29,794 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;@489280d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:22:29,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:22:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-03 02:22:29,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 02:22:29,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:29,813 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:29,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:29,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:29,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1539547475, now seen corresponding path program 1 times [2022-11-03 02:22:29,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:29,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186979120] [2022-11-03 02:22:29,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:29,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:29,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:29,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186979120] [2022-11-03 02:22:29,991 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:22:29,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146004057] [2022-11-03 02:22:29,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:29,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:29,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:29,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:30,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:22:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:30,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 02:22:30,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:30,125 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 02:22:30,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:30,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146004057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:30,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:30,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:22:30,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542924405] [2022-11-03 02:22:30,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:30,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:22:30,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:30,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:22:30,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:22:30,171 INFO L87 Difference]: Start difference. First operand has 30 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:22:30,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:30,209 INFO L93 Difference]: Finished difference Result 51 states and 79 transitions. [2022-11-03 02:22:30,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:22:30,212 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 20 [2022-11-03 02:22:30,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:30,222 INFO L225 Difference]: With dead ends: 51 [2022-11-03 02:22:30,222 INFO L226 Difference]: Without dead ends: 28 [2022-11-03 02:22:30,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:22:30,253 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:30,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:22:30,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-03 02:22:30,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-03 02:22:30,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 02:22:30,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2022-11-03 02:22:30,322 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 20 [2022-11-03 02:22:30,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:30,324 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2022-11-03 02:22:30,325 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:22:30,325 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2022-11-03 02:22:30,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:22:30,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:30,327 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:30,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:30,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 02:22:30,545 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:30,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:30,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1863391506, now seen corresponding path program 1 times [2022-11-03 02:22:30,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:30,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584301046] [2022-11-03 02:22:30,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:30,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:30,580 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:22:30,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762220026] [2022-11-03 02:22:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:30,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:30,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:30,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:30,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:22:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:30,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:22:30,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:30,737 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:22:30,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:22:30,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:30,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584301046] [2022-11-03 02:22:30,738 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:22:30,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762220026] [2022-11-03 02:22:30,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762220026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:30,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:22:30,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:22:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066194987] [2022-11-03 02:22:30,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:30,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:22:30,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:22:30,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:22:30,760 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:22:30,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:30,878 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2022-11-03 02:22:30,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:22:30,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 21 [2022-11-03 02:22:30,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:30,881 INFO L225 Difference]: With dead ends: 47 [2022-11-03 02:22:30,881 INFO L226 Difference]: Without dead ends: 40 [2022-11-03 02:22:30,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:22:30,883 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 29 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:30,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 78 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:22:30,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-03 02:22:30,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 30. [2022-11-03 02:22:30,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-03 02:22:30,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2022-11-03 02:22:30,896 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 21 [2022-11-03 02:22:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:30,897 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2022-11-03 02:22:30,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:22:30,897 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-11-03 02:22:30,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:22:30,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:30,898 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:30,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:31,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:31,120 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:31,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:31,121 INFO L85 PathProgramCache]: Analyzing trace with hash -73319670, now seen corresponding path program 1 times [2022-11-03 02:22:31,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:31,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96781321] [2022-11-03 02:22:31,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:31,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:31,151 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:22:31,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069445510] [2022-11-03 02:22:31,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:31,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:31,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:31,166 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:31,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:22:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:31,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:22:31,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:31,668 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 02:22:31,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:22:31,881 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 02:22:31,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:31,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96781321] [2022-11-03 02:22:31,882 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:22:31,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069445510] [2022-11-03 02:22:31,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069445510] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 02:22:31,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:22:31,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 13 [2022-11-03 02:22:31,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778269349] [2022-11-03 02:22:31,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:31,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:22:31,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:31,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:22:31,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:22:31,886 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:22:32,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:32,018 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2022-11-03 02:22:32,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:32,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2022-11-03 02:22:32,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:32,020 INFO L225 Difference]: With dead ends: 46 [2022-11-03 02:22:32,021 INFO L226 Difference]: Without dead ends: 44 [2022-11-03 02:22:32,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:22:32,023 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 22 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:32,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 125 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:22:32,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-03 02:22:32,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2022-11-03 02:22:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-03 02:22:32,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2022-11-03 02:22:32,038 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 24 [2022-11-03 02:22:32,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:32,039 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2022-11-03 02:22:32,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 02:22:32,039 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2022-11-03 02:22:32,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 02:22:32,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:32,040 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:32,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:32,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:32,261 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:32,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:32,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1101454984, now seen corresponding path program 1 times [2022-11-03 02:22:32,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:32,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495048168] [2022-11-03 02:22:32,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:32,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:32,283 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:22:32,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079971505] [2022-11-03 02:22:32,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:32,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:32,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:32,298 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:32,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:22:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:32,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 02:22:32,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:32,410 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:22:32,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:22:32,488 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:22:32,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:32,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495048168] [2022-11-03 02:22:32,489 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:22:32,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079971505] [2022-11-03 02:22:32,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079971505] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:22:32,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1461960581] [2022-11-03 02:22:32,515 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-03 02:22:32,516 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:22:32,521 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:22:32,529 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:22:32,530 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:22:33,448 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:22:33,475 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:22:35,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1461960581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:35,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:22:35,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 7] total 18 [2022-11-03 02:22:35,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34272078] [2022-11-03 02:22:35,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:35,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 02:22:35,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:35,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 02:22:35,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-11-03 02:22:35,648 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 13 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:22:36,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:36,062 INFO L93 Difference]: Finished difference Result 71 states and 97 transitions. [2022-11-03 02:22:36,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 02:22:36,063 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 26 [2022-11-03 02:22:36,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:36,067 INFO L225 Difference]: With dead ends: 71 [2022-11-03 02:22:36,067 INFO L226 Difference]: Without dead ends: 64 [2022-11-03 02:22:36,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 54 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-11-03 02:22:36,075 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 59 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:36,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 50 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:22:36,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-03 02:22:36,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 50. [2022-11-03 02:22:36,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 34 states have internal predecessors, (41), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-03 02:22:36,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 66 transitions. [2022-11-03 02:22:36,126 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 66 transitions. Word has length 26 [2022-11-03 02:22:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:36,127 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 66 transitions. [2022-11-03 02:22:36,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:22:36,127 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2022-11-03 02:22:36,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-03 02:22:36,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:36,129 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:36,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:36,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:36,352 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:36,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:36,353 INFO L85 PathProgramCache]: Analyzing trace with hash -156943002, now seen corresponding path program 1 times [2022-11-03 02:22:36,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:36,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619716279] [2022-11-03 02:22:36,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:36,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:36,367 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:22:36,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1461576418] [2022-11-03 02:22:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:36,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:36,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:36,369 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:36,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:22:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:36,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 02:22:36,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:36,720 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 02:22:36,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:22:36,903 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 02:22:36,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:36,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619716279] [2022-11-03 02:22:36,903 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:22:36,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461576418] [2022-11-03 02:22:36,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461576418] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 02:22:36,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:22:36,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 13 [2022-11-03 02:22:36,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103525602] [2022-11-03 02:22:36,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:36,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:22:36,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:22:36,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:22:36,906 INFO L87 Difference]: Start difference. First operand 50 states and 66 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 02:22:37,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:37,044 INFO L93 Difference]: Finished difference Result 58 states and 73 transitions. [2022-11-03 02:22:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:22:37,045 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2022-11-03 02:22:37,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:37,046 INFO L225 Difference]: With dead ends: 58 [2022-11-03 02:22:37,046 INFO L226 Difference]: Without dead ends: 56 [2022-11-03 02:22:37,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:22:37,047 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 21 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:37,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 126 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:22:37,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-03 02:22:37,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2022-11-03 02:22:37,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 37 states have internal predecessors, (44), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-03 02:22:37,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2022-11-03 02:22:37,081 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 29 [2022-11-03 02:22:37,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:37,081 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2022-11-03 02:22:37,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 02:22:37,082 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2022-11-03 02:22:37,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-03 02:22:37,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:37,083 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:37,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:37,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:37,331 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:37,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:37,332 INFO L85 PathProgramCache]: Analyzing trace with hash 187338980, now seen corresponding path program 1 times [2022-11-03 02:22:37,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:37,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656857392] [2022-11-03 02:22:37,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:37,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:37,350 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:22:37,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [380529268] [2022-11-03 02:22:37,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:37,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:37,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:37,357 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:37,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:22:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:37,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:22:37,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:37,528 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 02:22:37,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:22:37,696 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 02:22:37,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:37,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656857392] [2022-11-03 02:22:37,696 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:22:37,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380529268] [2022-11-03 02:22:37,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380529268] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:22:37,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [771623832] [2022-11-03 02:22:37,699 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-03 02:22:37,700 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:22:37,700 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:22:37,700 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:22:37,700 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:22:38,551 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-03 02:22:38,559 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:22:38,579 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:22:41,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [771623832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:22:41,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:22:41,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6, 6] total 22 [2022-11-03 02:22:41,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461624676] [2022-11-03 02:22:41,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:22:41,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 02:22:41,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:41,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 02:22:41,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:22:41,278 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 9 states have internal predecessors, (14), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:22:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:42,208 INFO L93 Difference]: Finished difference Result 115 states and 159 transitions. [2022-11-03 02:22:42,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:22:42,213 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 9 states have internal predecessors, (14), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 29 [2022-11-03 02:22:42,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:42,215 INFO L225 Difference]: With dead ends: 115 [2022-11-03 02:22:42,215 INFO L226 Difference]: Without dead ends: 113 [2022-11-03 02:22:42,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 61 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:22:42,217 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 72 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:42,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 67 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:22:42,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-03 02:22:42,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2022-11-03 02:22:42,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 63 states have (on average 1.253968253968254) internal successors, (79), 64 states have internal predecessors, (79), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-11-03 02:22:42,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 152 transitions. [2022-11-03 02:22:42,287 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 152 transitions. Word has length 29 [2022-11-03 02:22:42,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:42,288 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 152 transitions. [2022-11-03 02:22:42,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 9 states have internal predecessors, (14), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:22:42,288 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 152 transitions. [2022-11-03 02:22:42,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-03 02:22:42,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:42,290 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2022-11-03 02:22:42,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:42,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 02:22:42,497 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:42,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:42,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1193022788, now seen corresponding path program 1 times [2022-11-03 02:22:42,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:42,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168943494] [2022-11-03 02:22:42,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:42,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:42,510 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:22:42,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [435718876] [2022-11-03 02:22:42,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:42,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:42,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:42,511 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:42,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 02:22:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:22:42,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-03 02:22:42,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:43,150 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-03 02:22:43,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:22:43,886 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-03 02:22:43,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:43,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168943494] [2022-11-03 02:22:43,887 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:22:43,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435718876] [2022-11-03 02:22:43,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435718876] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:22:43,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [657014838] [2022-11-03 02:22:43,890 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-03 02:22:43,890 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:22:43,890 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:22:43,890 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:22:43,890 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:22:52,685 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-03 02:22:52,690 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:22:52,711 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:23:00,745 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2233#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:23:00,746 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:23:00,746 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:23:00,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 20 [2022-11-03 02:23:00,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655017020] [2022-11-03 02:23:00,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:23:00,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:23:00,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:00,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:23:00,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1393, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:23:00,748 INFO L87 Difference]: Start difference. First operand 108 states and 152 transitions. Second operand has 20 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 19 states have internal predecessors, (40), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 02:23:09,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:09,598 INFO L93 Difference]: Finished difference Result 242 states and 358 transitions. [2022-11-03 02:23:09,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-03 02:23:09,599 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 19 states have internal predecessors, (40), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 51 [2022-11-03 02:23:09,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:09,603 INFO L225 Difference]: With dead ends: 242 [2022-11-03 02:23:09,603 INFO L226 Difference]: Without dead ends: 238 [2022-11-03 02:23:09,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 104 SyntacticMatches, 9 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1256 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=430, Invalid=3476, Unknown=0, NotChecked=0, Total=3906 [2022-11-03 02:23:09,606 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 143 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:09,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 192 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-03 02:23:09,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-11-03 02:23:09,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 176. [2022-11-03 02:23:09,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 113 states have (on average 1.2566371681415929) internal successors, (142), 114 states have internal predecessors, (142), 53 states have call successors, (53), 9 states have call predecessors, (53), 9 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-03 02:23:09,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 247 transitions. [2022-11-03 02:23:09,732 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 247 transitions. Word has length 51 [2022-11-03 02:23:09,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:09,733 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 247 transitions. [2022-11-03 02:23:09,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 19 states have internal predecessors, (40), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 02:23:09,733 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 247 transitions. [2022-11-03 02:23:09,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-03 02:23:09,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:09,736 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 4, 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] [2022-11-03 02:23:09,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:09,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:09,957 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:09,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:09,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1047855047, now seen corresponding path program 1 times [2022-11-03 02:23:09,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:09,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574792467] [2022-11-03 02:23:09,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:09,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:09,970 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:23:09,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584395021] [2022-11-03 02:23:09,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:09,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:09,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:09,972 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:09,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 02:23:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:10,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-03 02:23:10,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-03 02:23:10,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:23:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-03 02:23:10,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:10,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574792467] [2022-11-03 02:23:10,462 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:23:10,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584395021] [2022-11-03 02:23:10,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584395021] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 02:23:10,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:23:10,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2022-11-03 02:23:10,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869661485] [2022-11-03 02:23:10,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:10,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:10,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:10,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:10,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:23:10,464 INFO L87 Difference]: Start difference. First operand 176 states and 247 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-03 02:23:10,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:10,669 INFO L93 Difference]: Finished difference Result 194 states and 263 transitions. [2022-11-03 02:23:10,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:23:10,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 61 [2022-11-03 02:23:10,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:10,671 INFO L225 Difference]: With dead ends: 194 [2022-11-03 02:23:10,672 INFO L226 Difference]: Without dead ends: 192 [2022-11-03 02:23:10,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 107 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:23:10,673 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 13 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:10,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 104 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:23:10,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-03 02:23:10,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 188. [2022-11-03 02:23:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 122 states have (on average 1.2377049180327868) internal successors, (151), 123 states have internal predecessors, (151), 53 states have call successors, (53), 12 states have call predecessors, (53), 12 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-03 02:23:10,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 256 transitions. [2022-11-03 02:23:10,813 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 256 transitions. Word has length 61 [2022-11-03 02:23:10,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:10,813 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 256 transitions. [2022-11-03 02:23:10,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-03 02:23:10,814 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 256 transitions. [2022-11-03 02:23:10,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-03 02:23:10,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:10,816 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 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, 1, 1] [2022-11-03 02:23:10,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:11,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:11,032 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:11,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:11,033 INFO L85 PathProgramCache]: Analyzing trace with hash -94425734, now seen corresponding path program 1 times [2022-11-03 02:23:11,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:11,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844162832] [2022-11-03 02:23:11,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:11,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:11,054 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:23:11,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720167448] [2022-11-03 02:23:11,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:11,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:11,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:11,070 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:11,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 02:23:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:11,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 02:23:11,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:11,319 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 02:23:11,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:23:11,444 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 02:23:11,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:11,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844162832] [2022-11-03 02:23:11,445 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:23:11,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720167448] [2022-11-03 02:23:11,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720167448] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:23:11,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1307932443] [2022-11-03 02:23:11,447 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-03 02:23:11,448 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:23:11,448 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:23:11,448 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:23:11,449 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:23:18,180 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 50 for LOIs [2022-11-03 02:23:18,241 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:23:18,256 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:23:21,064 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4279#(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 [2022-11-03 02:23:21,065 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:23:21,065 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:23:21,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-11-03 02:23:21,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862676536] [2022-11-03 02:23:21,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:23:21,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 02:23:21,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:21,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 02:23:21,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2022-11-03 02:23:21,071 INFO L87 Difference]: Start difference. First operand 188 states and 256 transitions. Second operand has 14 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 6 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 02:23:21,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:21,656 INFO L93 Difference]: Finished difference Result 278 states and 383 transitions. [2022-11-03 02:23:21,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:23:21,656 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 6 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 59 [2022-11-03 02:23:21,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:21,658 INFO L225 Difference]: With dead ends: 278 [2022-11-03 02:23:21,658 INFO L226 Difference]: Without dead ends: 182 [2022-11-03 02:23:21,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 137 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=202, Invalid=1358, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 02:23:21,660 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 66 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:21,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 210 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:23:21,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-03 02:23:21,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 153. [2022-11-03 02:23:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 95 states have (on average 1.1578947368421053) internal successors, (110), 96 states have internal predecessors, (110), 45 states have call successors, (45), 12 states have call predecessors, (45), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-11-03 02:23:21,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 199 transitions. [2022-11-03 02:23:21,754 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 199 transitions. Word has length 59 [2022-11-03 02:23:21,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:21,754 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 199 transitions. [2022-11-03 02:23:21,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 6 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 02:23:21,755 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 199 transitions. [2022-11-03 02:23:21,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-03 02:23:21,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:21,756 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:21,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:21,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:21,959 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:21,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:21,960 INFO L85 PathProgramCache]: Analyzing trace with hash 255729376, now seen corresponding path program 2 times [2022-11-03 02:23:21,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:21,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950422694] [2022-11-03 02:23:21,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:21,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:21,973 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:23:21,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1467122971] [2022-11-03 02:23:21,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:23:21,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:21,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:21,975 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:21,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 02:23:22,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:23:22,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:23:22,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:23:22,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:22,093 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-11-03 02:23:22,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:23:22,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:22,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950422694] [2022-11-03 02:23:22,093 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:23:22,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467122971] [2022-11-03 02:23:22,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467122971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:23:22,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:23:22,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:23:22,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43273589] [2022-11-03 02:23:22,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:23:22,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:23:22,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:22,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:23:22,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:23:22,095 INFO L87 Difference]: Start difference. First operand 153 states and 199 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:23:22,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:22,237 INFO L93 Difference]: Finished difference Result 178 states and 232 transitions. [2022-11-03 02:23:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:23:22,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 64 [2022-11-03 02:23:22,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:22,239 INFO L225 Difference]: With dead ends: 178 [2022-11-03 02:23:22,239 INFO L226 Difference]: Without dead ends: 176 [2022-11-03 02:23:22,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:23:22,241 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 8 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:22,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 111 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:23:22,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-03 02:23:22,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 173. [2022-11-03 02:23:22,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 105 states have (on average 1.161904761904762) internal successors, (122), 106 states have internal predecessors, (122), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-03 02:23:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 227 transitions. [2022-11-03 02:23:22,339 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 227 transitions. Word has length 64 [2022-11-03 02:23:22,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:22,339 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 227 transitions. [2022-11-03 02:23:22,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:23:22,340 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 227 transitions. [2022-11-03 02:23:22,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 02:23:22,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:22,341 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 4, 3, 3, 3, 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] [2022-11-03 02:23:22,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:22,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 02:23:22,545 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:22,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:22,545 INFO L85 PathProgramCache]: Analyzing trace with hash 148795157, now seen corresponding path program 1 times [2022-11-03 02:23:22,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:22,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298447919] [2022-11-03 02:23:22,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:22,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:22,555 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:23:22,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1593729997] [2022-11-03 02:23:22,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:22,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:22,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:22,557 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:22,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 02:23:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:22,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 02:23:22,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:22,685 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 23 proven. 22 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 02:23:22,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:23:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 23 proven. 22 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 02:23:22,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:22,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298447919] [2022-11-03 02:23:22,809 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:23:22,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593729997] [2022-11-03 02:23:22,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593729997] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:23:22,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [145819593] [2022-11-03 02:23:22,816 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-03 02:23:22,816 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:23:22,818 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:23:22,818 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:23:22,818 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:23:29,414 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-11-03 02:23:29,463 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:23:29,476 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:23:31,333 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6165#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:23:31,333 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:23:31,333 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:23:31,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2022-11-03 02:23:31,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488428576] [2022-11-03 02:23:31,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:23:31,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:23:31,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:31,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:23:31,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:23:31,338 INFO L87 Difference]: Start difference. First operand 173 states and 227 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:23:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:31,590 INFO L93 Difference]: Finished difference Result 187 states and 238 transitions. [2022-11-03 02:23:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:23:31,591 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2022-11-03 02:23:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:31,593 INFO L225 Difference]: With dead ends: 187 [2022-11-03 02:23:31,593 INFO L226 Difference]: Without dead ends: 185 [2022-11-03 02:23:31,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 188 SyntacticMatches, 15 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2022-11-03 02:23:31,594 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 21 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:31,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 105 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:23:31,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-03 02:23:31,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2022-11-03 02:23:31,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 114 states have (on average 1.1491228070175439) internal successors, (131), 115 states have internal predecessors, (131), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-03 02:23:31,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 236 transitions. [2022-11-03 02:23:31,676 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 236 transitions. Word has length 76 [2022-11-03 02:23:31,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:31,677 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 236 transitions. [2022-11-03 02:23:31,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-03 02:23:31,677 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 236 transitions. [2022-11-03 02:23:31,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 02:23:31,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:31,679 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 4, 3, 3, 3, 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] [2022-11-03 02:23:31,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:31,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 02:23:31,892 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:31,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:31,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1021259487, now seen corresponding path program 2 times [2022-11-03 02:23:31,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:31,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873259301] [2022-11-03 02:23:31,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:31,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:31,901 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:23:31,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1664588719] [2022-11-03 02:23:31,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:23:31,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:31,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:31,903 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:31,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 02:23:31,959 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:23:31,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:23:31,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:23:31,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:32,134 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-11-03 02:23:32,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:23:32,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:32,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873259301] [2022-11-03 02:23:32,257 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:23:32,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664588719] [2022-11-03 02:23:32,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664588719] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:23:32,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [650443124] [2022-11-03 02:23:32,260 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-03 02:23:32,260 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:23:32,260 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:23:32,261 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:23:32,261 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:23:38,506 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-11-03 02:23:38,550 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:23:38,568 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:23:40,813 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7027#(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 [2022-11-03 02:23:40,813 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:23:40,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:23:40,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2022-11-03 02:23:40,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920462897] [2022-11-03 02:23:40,814 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-03 02:23:40,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:23:40,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:40,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:23:40,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2022-11-03 02:23:40,815 INFO L87 Difference]: Start difference. First operand 185 states and 236 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:23:41,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:41,062 INFO L93 Difference]: Finished difference Result 231 states and 294 transitions. [2022-11-03 02:23:41,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:23:41,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2022-11-03 02:23:41,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:41,064 INFO L225 Difference]: With dead ends: 231 [2022-11-03 02:23:41,064 INFO L226 Difference]: Without dead ends: 229 [2022-11-03 02:23:41,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 125 SyntacticMatches, 19 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:23:41,065 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 10 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:41,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 178 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:23:41,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-11-03 02:23:41,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 204. [2022-11-03 02:23:41,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 129 states have (on average 1.1395348837209303) internal successors, (147), 131 states have internal predecessors, (147), 54 states have call successors, (54), 20 states have call predecessors, (54), 20 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-11-03 02:23:41,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 254 transitions. [2022-11-03 02:23:41,167 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 254 transitions. Word has length 76 [2022-11-03 02:23:41,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:41,168 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 254 transitions. [2022-11-03 02:23:41,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:23:41,169 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 254 transitions. [2022-11-03 02:23:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-03 02:23:41,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:41,170 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:41,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:41,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:41,373 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:41,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:41,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1897496259, now seen corresponding path program 1 times [2022-11-03 02:23:41,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:41,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365982055] [2022-11-03 02:23:41,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:41,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:41,385 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:23:41,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771570343] [2022-11-03 02:23:41,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:41,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:41,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:41,387 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:41,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 02:23:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:23:41,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 85 conjunts are in the unsatisfiable core [2022-11-03 02:23:41,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:42,378 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 51 proven. 32 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-11-03 02:23:42,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:23:44,321 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 61 proven. 17 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-03 02:23:44,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:44,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365982055] [2022-11-03 02:23:44,322 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:23:44,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771570343] [2022-11-03 02:23:44,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771570343] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:23:44,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [430422589] [2022-11-03 02:23:44,327 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-03 02:23:44,327 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:23:44,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:23:44,329 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:23:44,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:23:50,453 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-03 02:23:50,457 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:23:50,471 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:24:11,457 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8191#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:24:11,457 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:24:11,457 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:24:11,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 27 [2022-11-03 02:24:11,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932562528] [2022-11-03 02:24:11,457 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:24:11,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-03 02:24:11,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:11,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-03 02:24:11,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1704, Unknown=0, NotChecked=0, Total=1892 [2022-11-03 02:24:11,459 INFO L87 Difference]: Start difference. First operand 204 states and 254 transitions. Second operand has 27 states, 22 states have (on average 2.409090909090909) internal successors, (53), 23 states have internal predecessors, (53), 11 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 8 states have call predecessors, (20), 9 states have call successors, (20) [2022-11-03 02:24:21,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:29,582 WARN L234 SmtUtils]: Spent 5.00s on a formula simplification. DAG size of input: 74 DAG size of output: 68 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:24:33,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:37,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:50,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:53,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:24:57,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:05,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:20,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:21,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:23,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:26,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:28,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:33,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:34,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-03 02:25:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:41,480 INFO L93 Difference]: Finished difference Result 402 states and 560 transitions. [2022-11-03 02:25:41,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-11-03 02:25:41,481 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 22 states have (on average 2.409090909090909) internal successors, (53), 23 states have internal predecessors, (53), 11 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 8 states have call predecessors, (20), 9 states have call successors, (20) Word has length 78 [2022-11-03 02:25:41,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:41,484 INFO L225 Difference]: With dead ends: 402 [2022-11-03 02:25:41,484 INFO L226 Difference]: Without dead ends: 398 [2022-11-03 02:25:41,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 185 SyntacticMatches, 20 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4593 ImplicationChecksByTransitivity, 64.9s TimeCoverageRelationStatistics Valid=1511, Invalid=10699, Unknown=0, NotChecked=0, Total=12210 [2022-11-03 02:25:41,488 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 205 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 582 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 2408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:41,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 315 Invalid, 2408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 1816 Invalid, 10 Unknown, 0 Unchecked, 47.2s Time] [2022-11-03 02:25:41,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-11-03 02:25:41,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 314. [2022-11-03 02:25:41,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 188 states have (on average 1.1861702127659575) internal successors, (223), 190 states have internal predecessors, (223), 102 states have call successors, (102), 23 states have call predecessors, (102), 23 states have return successors, (101), 100 states have call predecessors, (101), 101 states have call successors, (101) [2022-11-03 02:25:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 426 transitions. [2022-11-03 02:25:41,714 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 426 transitions. Word has length 78 [2022-11-03 02:25:41,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:41,714 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 426 transitions. [2022-11-03 02:25:41,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 22 states have (on average 2.409090909090909) internal successors, (53), 23 states have internal predecessors, (53), 11 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 8 states have call predecessors, (20), 9 states have call successors, (20) [2022-11-03 02:25:41,715 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 426 transitions. [2022-11-03 02:25:41,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-03 02:25:41,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:41,716 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 4, 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] [2022-11-03 02:25:41,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:41,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:25:41,933 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:41,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:41,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1729932497, now seen corresponding path program 1 times [2022-11-03 02:25:41,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:41,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681897779] [2022-11-03 02:25:41,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:41,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:41,943 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:25:41,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1578958723] [2022-11-03 02:25:41,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:41,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:25:41,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:25:41,945 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:25:41,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-03 02:25:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:42,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 02:25:42,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:42,178 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 90 proven. 9 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-11-03 02:25:42,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:42,390 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 28 proven. 11 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-03 02:25:42,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:42,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681897779] [2022-11-03 02:25:42,391 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:25:42,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578958723] [2022-11-03 02:25:42,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578958723] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:42,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [160436349] [2022-11-03 02:25:42,393 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-03 02:25:42,393 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:25:42,394 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:25:42,394 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:25:42,394 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:25:45,350 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 32 for LOIs [2022-11-03 02:25:45,389 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:25:45,403 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:25:47,736 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9969#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:25:47,736 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:25:47,737 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:47,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-11-03 02:25:47,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757901655] [2022-11-03 02:25:47,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:25:47,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 02:25:47,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:47,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 02:25:47,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=909, Unknown=0, NotChecked=0, Total=1056 [2022-11-03 02:25:47,739 INFO L87 Difference]: Start difference. First operand 314 states and 426 transitions. Second operand has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 8 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) [2022-11-03 02:25:48,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:48,533 INFO L93 Difference]: Finished difference Result 499 states and 687 transitions. [2022-11-03 02:25:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:25:48,534 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 8 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) Word has length 81 [2022-11-03 02:25:48,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:48,536 INFO L225 Difference]: With dead ends: 499 [2022-11-03 02:25:48,536 INFO L226 Difference]: Without dead ends: 330 [2022-11-03 02:25:48,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 196 SyntacticMatches, 14 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=291, Invalid=1779, Unknown=0, NotChecked=0, Total=2070 [2022-11-03 02:25:48,538 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:48,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 234 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:25:48,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-11-03 02:25:48,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 321. [2022-11-03 02:25:48,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 185 states have (on average 1.1783783783783783) internal successors, (218), 187 states have internal predecessors, (218), 114 states have call successors, (114), 21 states have call predecessors, (114), 21 states have return successors, (113), 112 states have call predecessors, (113), 113 states have call successors, (113) [2022-11-03 02:25:48,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 445 transitions. [2022-11-03 02:25:48,781 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 445 transitions. Word has length 81 [2022-11-03 02:25:48,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:48,782 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 445 transitions. [2022-11-03 02:25:48,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 8 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 7 states have call predecessors, (28), 8 states have call successors, (28) [2022-11-03 02:25:48,782 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 445 transitions. [2022-11-03 02:25:48,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-03 02:25:48,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:48,784 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 4, 3, 3, 3, 3, 3, 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] [2022-11-03 02:25:48,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:49,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-03 02:25:49,001 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:49,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:49,001 INFO L85 PathProgramCache]: Analyzing trace with hash 144664241, now seen corresponding path program 3 times [2022-11-03 02:25:49,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:49,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750685742] [2022-11-03 02:25:49,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:49,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:49,012 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:25:49,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811489542] [2022-11-03 02:25:49,012 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:25:49,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:25:49,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:25:49,014 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:25:49,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-03 02:25:49,076 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:25:49,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:25:49,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:25:49,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:49,314 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 58 proven. 13 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-03 02:25:49,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 28 proven. 13 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-03 02:25:49,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:25:49,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750685742] [2022-11-03 02:25:49,581 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:25:49,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811489542] [2022-11-03 02:25:49,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811489542] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:25:49,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1806175398] [2022-11-03 02:25:49,583 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-03 02:25:49,584 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:25:49,584 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:25:49,584 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:25:49,584 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:25:55,830 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-11-03 02:25:55,875 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:25:55,888 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:25:58,535 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11796#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:25:58,535 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:25:58,536 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:25:58,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2022-11-03 02:25:58,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400418538] [2022-11-03 02:25:58,536 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:25:58,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-03 02:25:58,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:25:58,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-03 02:25:58,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=928, Unknown=0, NotChecked=0, Total=1056 [2022-11-03 02:25:58,538 INFO L87 Difference]: Start difference. First operand 321 states and 445 transitions. Second operand has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 8 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 7 states have call predecessors, (26), 8 states have call successors, (26) [2022-11-03 02:25:59,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:59,891 INFO L93 Difference]: Finished difference Result 411 states and 573 transitions. [2022-11-03 02:25:59,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 02:25:59,892 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 8 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 7 states have call predecessors, (26), 8 states have call successors, (26) Word has length 81 [2022-11-03 02:25:59,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:59,894 INFO L225 Difference]: With dead ends: 411 [2022-11-03 02:25:59,894 INFO L226 Difference]: Without dead ends: 211 [2022-11-03 02:25:59,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 191 SyntacticMatches, 19 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 995 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=351, Invalid=2001, Unknown=0, NotChecked=0, Total=2352 [2022-11-03 02:25:59,896 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 84 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:59,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 220 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:25:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-03 02:26:00,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-11-03 02:26:00,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 120 states have (on average 1.1833333333333333) internal successors, (142), 121 states have internal predecessors, (142), 77 states have call successors, (77), 13 states have call predecessors, (77), 13 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-11-03 02:26:00,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 295 transitions. [2022-11-03 02:26:00,077 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 295 transitions. Word has length 81 [2022-11-03 02:26:00,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:00,078 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 295 transitions. [2022-11-03 02:26:00,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 8 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 7 states have call predecessors, (26), 8 states have call successors, (26) [2022-11-03 02:26:00,078 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 295 transitions. [2022-11-03 02:26:00,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-03 02:26:00,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:00,080 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:00,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-03 02:26:00,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:26:00,296 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:00,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:00,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1455689018, now seen corresponding path program 4 times [2022-11-03 02:26:00,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:00,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741908525] [2022-11-03 02:26:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:00,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:00,320 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:26:00,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476523963] [2022-11-03 02:26:00,335 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:26:00,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:26:00,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:26:00,337 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:26:00,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-03 02:26:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:00,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 02:26:00,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 41 proven. 34 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-11-03 02:26:00,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:26:00,710 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 41 proven. 34 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-11-03 02:26:00,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:00,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741908525] [2022-11-03 02:26:00,711 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:26:00,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476523963] [2022-11-03 02:26:00,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476523963] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:26:00,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [650712214] [2022-11-03 02:26:00,713 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-03 02:26:00,714 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:26:00,714 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:26:00,714 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:26:00,714 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:26:06,718 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-11-03 02:26:06,768 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:26:06,785 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:26:09,105 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13451#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:26:09,105 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:26:09,105 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:26:09,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2022-11-03 02:26:09,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41537770] [2022-11-03 02:26:09,106 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:26:09,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:26:09,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:09,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:26:09,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:26:09,107 INFO L87 Difference]: Start difference. First operand 211 states and 295 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:26:09,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:09,409 INFO L93 Difference]: Finished difference Result 225 states and 306 transitions. [2022-11-03 02:26:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:26:09,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 103 [2022-11-03 02:26:09,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:09,411 INFO L225 Difference]: With dead ends: 225 [2022-11-03 02:26:09,411 INFO L226 Difference]: Without dead ends: 223 [2022-11-03 02:26:09,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 260 SyntacticMatches, 24 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=113, Invalid=589, Unknown=0, NotChecked=0, Total=702 [2022-11-03 02:26:09,413 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 14 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:09,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 128 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:26:09,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-03 02:26:09,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-11-03 02:26:09,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 129 states have (on average 1.1705426356589148) internal successors, (151), 130 states have internal predecessors, (151), 77 states have call successors, (77), 16 states have call predecessors, (77), 16 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-11-03 02:26:09,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 304 transitions. [2022-11-03 02:26:09,598 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 304 transitions. Word has length 103 [2022-11-03 02:26:09,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:09,599 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 304 transitions. [2022-11-03 02:26:09,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:26:09,599 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 304 transitions. [2022-11-03 02:26:09,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-03 02:26:09,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:09,601 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:09,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-03 02:26:09,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-03 02:26:09,802 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:09,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:09,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1799971000, now seen corresponding path program 5 times [2022-11-03 02:26:09,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:09,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560610172] [2022-11-03 02:26:09,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:09,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:09,810 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:26:09,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1564151537] [2022-11-03 02:26:09,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:26:09,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:26:09,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:26:09,816 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:26:09,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-03 02:26:09,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:26:09,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:26:09,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-03 02:26:09,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:10,756 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 24 proven. 26 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-03 02:26:10,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:26:11,164 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 26 proven. 21 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-11-03 02:26:11,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:11,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560610172] [2022-11-03 02:26:11,165 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:26:11,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564151537] [2022-11-03 02:26:11,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564151537] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:26:11,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1150584060] [2022-11-03 02:26:11,167 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-03 02:26:11,168 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:26:11,168 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:26:11,168 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:26:11,168 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:26:17,471 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-11-03 02:26:17,520 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:26:17,536 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:26:23,774 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14803#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:26:23,774 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:26:23,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:26:23,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 18 [2022-11-03 02:26:23,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221590527] [2022-11-03 02:26:23,774 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:26:23,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-03 02:26:23,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:23,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-03 02:26:23,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=986, Unknown=0, NotChecked=0, Total=1122 [2022-11-03 02:26:23,776 INFO L87 Difference]: Start difference. First operand 223 states and 304 transitions. Second operand has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 6 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-03 02:26:26,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:26,663 INFO L93 Difference]: Finished difference Result 316 states and 429 transitions. [2022-11-03 02:26:26,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 02:26:26,664 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 6 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 103 [2022-11-03 02:26:26,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:26,665 INFO L225 Difference]: With dead ends: 316 [2022-11-03 02:26:26,665 INFO L226 Difference]: Without dead ends: 314 [2022-11-03 02:26:26,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 249 SyntacticMatches, 26 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1247 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=269, Invalid=1893, Unknown=0, NotChecked=0, Total=2162 [2022-11-03 02:26:26,666 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 109 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:26,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 200 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-03 02:26:26,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-11-03 02:26:26,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 255. [2022-11-03 02:26:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 156 states have (on average 1.1474358974358974) internal successors, (179), 158 states have internal predecessors, (179), 78 states have call successors, (78), 20 states have call predecessors, (78), 20 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2022-11-03 02:26:26,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 334 transitions. [2022-11-03 02:26:26,923 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 334 transitions. Word has length 103 [2022-11-03 02:26:26,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:26,923 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 334 transitions. [2022-11-03 02:26:26,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 states have internal predecessors, (53), 6 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-03 02:26:26,924 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 334 transitions. [2022-11-03 02:26:26,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-03 02:26:26,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:26,926 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:26,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-11-03 02:26:27,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-03 02:26:27,153 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:27,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:27,153 INFO L85 PathProgramCache]: Analyzing trace with hash -327458570, now seen corresponding path program 6 times [2022-11-03 02:26:27,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:27,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83608397] [2022-11-03 02:26:27,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:27,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:27,163 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:26:27,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2134189675] [2022-11-03 02:26:27,163 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:26:27,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:26:27,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:26:27,165 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:26:27,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-03 02:26:27,244 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:26:27,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:26:27,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:26:27,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:27,402 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 137 proven. 24 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2022-11-03 02:26:27,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:26:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2022-11-03 02:26:27,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:27,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83608397] [2022-11-03 02:26:27,700 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:26:27,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134189675] [2022-11-03 02:26:27,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134189675] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:26:27,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [111496779] [2022-11-03 02:26:27,702 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-03 02:26:27,702 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:26:27,703 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:26:27,703 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:26:27,703 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:26:33,477 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-11-03 02:26:33,525 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:26:33,540 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:26:36,278 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16391#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:26:36,278 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:26:36,278 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:26:36,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 19 [2022-11-03 02:26:36,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430206527] [2022-11-03 02:26:36,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:26:36,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-03 02:26:36,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:36,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-03 02:26:36,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1047, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 02:26:36,281 INFO L87 Difference]: Start difference. First operand 255 states and 334 transitions. Second operand has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 17 states have internal predecessors, (51), 10 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2022-11-03 02:26:37,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:37,049 INFO L93 Difference]: Finished difference Result 324 states and 416 transitions. [2022-11-03 02:26:37,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 02:26:37,050 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 17 states have internal predecessors, (51), 10 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) Word has length 108 [2022-11-03 02:26:37,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:37,052 INFO L225 Difference]: With dead ends: 324 [2022-11-03 02:26:37,052 INFO L226 Difference]: Without dead ends: 139 [2022-11-03 02:26:37,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 264 SyntacticMatches, 25 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1135 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=277, Invalid=1615, Unknown=0, NotChecked=0, Total=1892 [2022-11-03 02:26:37,054 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 66 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:37,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 148 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:26:37,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-03 02:26:37,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 119. [2022-11-03 02:26:37,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 81 states have (on average 1.0123456790123457) internal successors, (82), 82 states have internal predecessors, (82), 22 states have call successors, (22), 15 states have call predecessors, (22), 15 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-03 02:26:37,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 126 transitions. [2022-11-03 02:26:37,153 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 126 transitions. Word has length 108 [2022-11-03 02:26:37,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:37,153 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 126 transitions. [2022-11-03 02:26:37,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 17 states have internal predecessors, (51), 10 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 10 states have call predecessors, (35), 10 states have call successors, (35) [2022-11-03 02:26:37,154 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 126 transitions. [2022-11-03 02:26:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-03 02:26:37,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:26:37,155 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:26:37,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-03 02:26:37,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-03 02:26:37,369 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:26:37,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:26:37,369 INFO L85 PathProgramCache]: Analyzing trace with hash -686262770, now seen corresponding path program 7 times [2022-11-03 02:26:37,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:26:37,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497096142] [2022-11-03 02:26:37,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:26:37,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:26:37,381 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:26:37,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127334509] [2022-11-03 02:26:37,382 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:26:37,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:26:37,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:26:37,383 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:26:37,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-03 02:26:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:26:37,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 02:26:37,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:26:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 73 proven. 52 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-03 02:26:37,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:26:38,227 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 63 proven. 62 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-11-03 02:26:38,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:26:38,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497096142] [2022-11-03 02:26:38,227 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:26:38,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127334509] [2022-11-03 02:26:38,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127334509] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:26:38,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [796029282] [2022-11-03 02:26:38,229 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-11-03 02:26:38,230 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:26:38,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:26:38,230 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:26:38,230 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:26:44,362 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2022-11-03 02:26:44,406 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 58 for LOIs [2022-11-03 02:26:44,423 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:26:48,988 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17911#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:26:48,988 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:26:48,988 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:26:48,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2022-11-03 02:26:48,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968834094] [2022-11-03 02:26:48,989 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:26:48,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-03 02:26:48,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:26:48,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-03 02:26:48,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1785, Unknown=0, NotChecked=0, Total=1980 [2022-11-03 02:26:48,991 INFO L87 Difference]: Start difference. First operand 119 states and 126 transitions. Second operand has 29 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 12 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) [2022-11-03 02:26:49,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:26:49,934 INFO L93 Difference]: Finished difference Result 144 states and 153 transitions. [2022-11-03 02:26:49,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:26:49,935 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 12 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) Word has length 133 [2022-11-03 02:26:49,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:26:49,936 INFO L225 Difference]: With dead ends: 144 [2022-11-03 02:26:49,936 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:26:49,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 321 SyntacticMatches, 33 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2054 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=442, Invalid=2864, Unknown=0, NotChecked=0, Total=3306 [2022-11-03 02:26:49,938 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 69 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:26:49,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 267 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:26:49,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:26:49,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:26:49,939 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) [2022-11-03 02:26:49,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:26:49,939 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 133 [2022-11-03 02:26:49,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:26:49,940 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:26:49,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 12 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) [2022-11-03 02:26:49,940 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:26:49,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:26:49,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:26:49,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-03 02:26:50,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:26:50,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:27:15,376 WARN L234 SmtUtils]: Spent 13.44s on a formula simplification. DAG size of input: 278 DAG size of output: 138 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:27:27,299 WARN L234 SmtUtils]: Spent 11.85s on a formula simplification. DAG size of input: 270 DAG size of output: 129 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:27:33,558 WARN L234 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 271 DAG size of output: 128 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:27:42,979 WARN L234 SmtUtils]: Spent 9.41s on a formula simplification. DAG size of input: 270 DAG size of output: 129 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:28:00,430 WARN L234 SmtUtils]: Spent 16.72s on a formula simplification. DAG size of input: 245 DAG size of output: 136 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:28:24,767 WARN L234 SmtUtils]: Spent 22.72s on a formula simplification. DAG size of input: 278 DAG size of output: 137 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:28:24,838 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 73) the Hoare annotation is: (let ((.cse9 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse27 (select |#memory_int| 1)) (.cse19 (+ |ULTIMATE.start_main_~b~0#1| 1))) (let ((.cse3 (<= |ULTIMATE.start_main_~b~0#1| 1)) (.cse5 (<= .cse19 |ULTIMATE.start_main_~a~0#1|)) (.cse18 (* 3 |ULTIMATE.start_main_~c~0#1|)) (.cse14 (= |#NULL.offset| 0)) (.cse24 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse25 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse1 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0)))) (.cse2 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse4 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse6 (= 11 (select |#length| 2))) (.cse7 (= 2 (select |#length| 1))) (.cse8 (= (select |#valid| 3) 1)) (.cse10 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse11 (= (select |#valid| 1) 1)) (.cse12 (= (select |#valid| 0) 0)) (.cse13 (= (select |#valid| 2) 1)) (.cse15 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse16 (= (select .cse27 0) 48)) (.cse17 (= (select .cse27 1) 0)) (.cse20 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse21 (< 0 |#StackHeapBarrier|)) (.cse22 (= |#NULL.base| 0)) (.cse23 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) .cse9)) (.cse26 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and (<= (+ |ULTIMATE.start_main_~x~0#1| 1) |ULTIMATE.start_main_~y~0#1|) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= |ULTIMATE.start_main_~x~0#1| .cse9) .cse10 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) .cse11 .cse12 .cse13 .cse14 (= (+ |ULTIMATE.start_main_~q~0#1| (* 2 |ULTIMATE.start_main_~p~0#1|)) 0) .cse15 (= |ULTIMATE.start_main_~y~0#1| (+ (* 2 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~b~0#1|)) .cse16 .cse17 (< .cse18 .cse19) .cse20 .cse21 .cse22) (and (<= 0 |ULTIMATE.start_main_~b~0#1|) .cse0 .cse1 (= .cse23 (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (= |ULTIMATE.start_main_~p~0#1| 0) .cse2 .cse24 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (* 3 |ULTIMATE.start_main_~b~0#1|) 0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= .cse18 0) .cse11 .cse25 .cse12 .cse13 .cse14 .cse16 .cse26 .cse17 .cse21 .cse22) (and (or (and .cse0 (= |ULTIMATE.start_main_~temp~0#1| 0) .cse1 (not (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~c~0#1|)) (= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~x~0#1|) .cse24 .cse4 .cse6 .cse7 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) .cse8 (= |ULTIMATE.start_main_~q~0#1| 1) (= |ULTIMATE.start_main_~k~0#1| 0) .cse11 .cse25 .cse12 .cse13 .cse16 .cse17 (= (+ |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~temp~0#1|) .cse21 .cse22) (and .cse0 .cse1 (not (= (ite .cse2 1 0) 0)) .cse4 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse6 .cse7 .cse8 .cse10 (= |ULTIMATE.start_main_~q~0#1| 0) .cse11 .cse12 .cse13 .cse15 .cse16 .cse17 .cse20 .cse21 .cse22)) (<= |#NULL.offset| 0) (= .cse23 |ULTIMATE.start_main_~a~0#1|) (<= 0 |#NULL.offset|) .cse26)))) [2022-11-03 02:28:24,839 INFO L895 garLoopResultBuilder]: At program point L35-3(lines 35 73) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0))) (= (+ (* |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| (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (or (= |ULTIMATE.start_main_~b~0#1| 0) (< |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-03 02:28:24,839 INFO L895 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: (let ((.cse40 (select |#memory_int| 1))) (let ((.cse36 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse8 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse20 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0))) (.cse5 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse6 (= (select |#length| 3) 12)) (.cse28 (= |ULTIMATE.start_main_~temp~0#1| 0)) (.cse7 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0)))) (.cse29 (= |ULTIMATE.start_main_~p~0#1| 0)) (.cse30 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|)) (.cse31 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse10 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse32 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse12 (= 11 (select |#length| 2))) (.cse13 (= 2 (select |#length| 1))) (.cse33 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse15 (= (select |#valid| 3) 1)) (.cse35 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse17 (= (select |#valid| 1) 1)) (.cse37 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse19 (= (select |#valid| 0) 0)) (.cse21 (= (select |#valid| 2) 1)) (.cse22 (= (select .cse40 0) 48)) (.cse24 (= (select .cse40 1) 0)) (.cse25 (< 0 |#StackHeapBarrier|)) (.cse26 (= |#NULL.base| 0)) (.cse9 (* 2 |ULTIMATE.start_main_~b~0#1|))) (let ((.cse18 (<= .cse9 |ULTIMATE.start_main_~v~0#1|)) (.cse27 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~v~0#1|)) (.cse34 (<= |#NULL.offset| 0)) (.cse3 (or (and .cse6 .cse7 (not (= (ite .cse8 1 0) 0)) (= |ULTIMATE.start_main_~p~0#1| 1) .cse10 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse12 .cse13 .cse15 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse17 .cse19 .cse20 .cse21 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse22 .cse24 .cse5 .cse25 .cse26) (and .cse6 .cse28 .cse7 .cse29 .cse30 .cse31 .cse10 .cse32 .cse12 .cse13 .cse33 .cse15 .cse35 .cse17 .cse37 .cse19 .cse21 .cse22 .cse24 .cse25 .cse26))) (.cse38 (<= 0 |#NULL.offset|)) (.cse0 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse1 (= (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~d~0#1|) |ULTIMATE.start_main_~v~0#1|)) (.cse11 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~a~0#1|)) (.cse14 (= (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~b~0#1|)) (.cse2 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse16 (<= |ULTIMATE.start_main_~c~0#1| 2)) (.cse4 (= |#NULL.offset| 0)) (.cse23 (= .cse36 |ULTIMATE.start_main_~a~0#1|))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~c~0#1|) .cse2 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 (<= |ULTIMATE.start_main_~v~0#1| .cse9) .cse0 .cse10 .cse1 .cse11 .cse12 .cse13 .cse14 .cse15 (<= (+ .cse9 |ULTIMATE.start_main_~c~0#1|) 2) .cse2 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse4 .cse22 .cse23 .cse24 .cse25 .cse26) (and .cse6 .cse7 .cse8 .cse0 .cse10 .cse1 .cse11 .cse12 .cse13 .cse14 .cse15 .cse27 .cse2 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse4 .cse22 .cse23 .cse24 .cse25 .cse26) (and .cse6 .cse28 .cse7 .cse29 .cse30 .cse31 .cse10 .cse1 .cse32 .cse12 .cse13 .cse33 .cse15 .cse34 .cse27 .cse35 (= .cse36 (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|) (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~c~0#1|)) .cse2 .cse17 .cse37 .cse19 .cse21 .cse22 .cse38 .cse24 .cse25 .cse26) (and .cse0 .cse34 .cse2 .cse37 (= .cse9 |ULTIMATE.start_main_~v~0#1|) .cse3 .cse38 (= 2 |ULTIMATE.start_main_~d~0#1|)) (let ((.cse39 (* |ULTIMATE.start_main_~b~0#1| 4))) (and .cse6 .cse7 .cse8 .cse0 .cse10 .cse1 .cse11 .cse12 .cse13 .cse14 .cse15 .cse2 .cse16 .cse17 .cse19 .cse20 (<= |ULTIMATE.start_main_~v~0#1| .cse39) .cse21 .cse4 .cse22 .cse23 .cse24 (<= .cse39 |ULTIMATE.start_main_~c~0#1|) .cse25 .cse26)))))) [2022-11-03 02:28:24,840 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2022-11-03 02:28:24,840 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-03 02:28:24,840 INFO L895 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0)) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-03 02:28:24,840 INFO L895 garLoopResultBuilder]: At program point L24-1(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-03 02:28:24,840 INFO L899 garLoopResultBuilder]: For program point L53(lines 49 59) no Hoare annotation was computed. [2022-11-03 02:28:24,841 INFO L895 garLoopResultBuilder]: At program point L49-2(lines 49 59) the Hoare annotation is: (let ((.cse40 (select |#memory_int| 1))) (let ((.cse2 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse16 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0))) (.cse26 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse27 (= |ULTIMATE.start_main_~temp~0#1| 0)) (.cse1 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0)))) (.cse28 (= |ULTIMATE.start_main_~p~0#1| 0)) (.cse29 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse5 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse31 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (= 11 (select |#length| 2))) (.cse9 (= 2 (select |#length| 1))) (.cse32 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse11 (= (select |#valid| 3) 1)) (.cse35 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse14 (= (select |#valid| 1) 1)) (.cse36 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse15 (= (select |#valid| 0) 0)) (.cse18 (= (select |#valid| 2) 1)) (.cse20 (= (select .cse40 0) 48)) (.cse22 (= (select .cse40 1) 0)) (.cse23 (< 0 |#StackHeapBarrier|)) (.cse24 (= |#NULL.base| 0)) (.cse38 (* 2 |ULTIMATE.start_main_~b~0#1|)) (.cse33 (+ |ULTIMATE.start_main_~b~0#1| 1))) (let ((.cse4 (<= |ULTIMATE.start_main_~b~0#1| 1)) (.cse6 (= (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~d~0#1|) |ULTIMATE.start_main_~v~0#1|)) (.cse7 (<= .cse33 |ULTIMATE.start_main_~a~0#1|)) (.cse10 (= (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~b~0#1|)) (.cse13 (<= |ULTIMATE.start_main_~c~0#1| 2)) (.cse19 (= |#NULL.offset| 0)) (.cse21 (= (+ (* |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|)) (.cse3 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse34 (<= |#NULL.offset| 0)) (.cse12 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse39 (= .cse38 |ULTIMATE.start_main_~v~0#1|)) (.cse25 (or (and .cse0 .cse1 (not (= (ite .cse2 1 0) 0)) (= |ULTIMATE.start_main_~p~0#1| 1) .cse5 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse8 .cse9 .cse11 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse14 .cse15 .cse16 .cse18 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse20 .cse22 .cse26 .cse23 .cse24) (and .cse0 .cse27 .cse1 .cse28 .cse29 .cse30 .cse5 .cse31 .cse8 .cse9 .cse32 .cse11 .cse35 .cse14 .cse36 .cse15 .cse18 .cse20 .cse22 .cse23 .cse24))) (.cse37 (<= 0 |#NULL.offset|))) (or (let ((.cse17 (* |ULTIMATE.start_main_~b~0#1| 4))) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 (<= |ULTIMATE.start_main_~v~0#1| .cse17) .cse18 .cse19 .cse20 .cse21 .cse22 (<= .cse17 |ULTIMATE.start_main_~c~0#1|) .cse23 .cse24)) (and .cse3 .cse6 (<= |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~c~0#1|) .cse12 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) .cse25 .cse19 .cse26) (and .cse0 .cse27 .cse1 .cse28 .cse29 .cse30 .cse5 .cse6 .cse31 .cse8 .cse9 .cse32 (<= .cse33 |ULTIMATE.start_main_~c~0#1|) .cse11 .cse34 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~v~0#1|) .cse35 .cse12 .cse13 .cse14 .cse36 .cse15 .cse18 .cse20 .cse37 .cse22 .cse23 .cse24) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (<= (+ .cse38 |ULTIMATE.start_main_~c~0#1|) 2) .cse12 .cse13 .cse14 .cse39 .cse15 .cse16 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24) (and .cse3 .cse34 .cse12 .cse36 .cse39 .cse25 .cse37 (= 2 |ULTIMATE.start_main_~d~0#1|)))))) [2022-11-03 02:28:24,841 INFO L899 garLoopResultBuilder]: For program point L49-3(lines 49 59) no Hoare annotation was computed. [2022-11-03 02:28:24,842 INFO L902 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: true [2022-11-03 02:28:24,843 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:28:24,843 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0))) (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0)) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (<= |ULTIMATE.start_main_~x~0#1| 2) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-03 02:28:24,844 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse40 (select |#memory_int| 1))) (let ((.cse2 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse16 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0))) (.cse26 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse27 (= |ULTIMATE.start_main_~temp~0#1| 0)) (.cse1 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0)))) (.cse28 (= |ULTIMATE.start_main_~p~0#1| 0)) (.cse29 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse5 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse31 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse8 (= 11 (select |#length| 2))) (.cse9 (= 2 (select |#length| 1))) (.cse32 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse11 (= (select |#valid| 3) 1)) (.cse35 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse14 (= (select |#valid| 1) 1)) (.cse36 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse15 (= (select |#valid| 0) 0)) (.cse18 (= (select |#valid| 2) 1)) (.cse20 (= (select .cse40 0) 48)) (.cse22 (= (select .cse40 1) 0)) (.cse23 (< 0 |#StackHeapBarrier|)) (.cse24 (= |#NULL.base| 0)) (.cse38 (* 2 |ULTIMATE.start_main_~b~0#1|)) (.cse33 (+ |ULTIMATE.start_main_~b~0#1| 1))) (let ((.cse4 (<= |ULTIMATE.start_main_~b~0#1| 1)) (.cse6 (= (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~d~0#1|) |ULTIMATE.start_main_~v~0#1|)) (.cse7 (<= .cse33 |ULTIMATE.start_main_~a~0#1|)) (.cse10 (= (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~b~0#1|)) (.cse13 (<= |ULTIMATE.start_main_~c~0#1| 2)) (.cse19 (= |#NULL.offset| 0)) (.cse21 (= (+ (* |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|)) (.cse3 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse34 (<= |#NULL.offset| 0)) (.cse12 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse39 (= .cse38 |ULTIMATE.start_main_~v~0#1|)) (.cse25 (or (and .cse0 .cse1 (not (= (ite .cse2 1 0) 0)) (= |ULTIMATE.start_main_~p~0#1| 1) .cse5 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse8 .cse9 .cse11 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse14 .cse15 .cse16 .cse18 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse20 .cse22 .cse26 .cse23 .cse24) (and .cse0 .cse27 .cse1 .cse28 .cse29 .cse30 .cse5 .cse31 .cse8 .cse9 .cse32 .cse11 .cse35 .cse14 .cse36 .cse15 .cse18 .cse20 .cse22 .cse23 .cse24))) (.cse37 (<= 0 |#NULL.offset|))) (or (let ((.cse17 (* |ULTIMATE.start_main_~b~0#1| 4))) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 (<= |ULTIMATE.start_main_~v~0#1| .cse17) .cse18 .cse19 .cse20 .cse21 .cse22 (<= .cse17 |ULTIMATE.start_main_~c~0#1|) .cse23 .cse24)) (and .cse3 .cse6 (<= |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~c~0#1|) .cse12 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) .cse25 .cse19 .cse26) (and .cse0 .cse27 .cse1 .cse28 .cse29 .cse30 .cse5 .cse6 .cse31 .cse8 .cse9 .cse32 (<= .cse33 |ULTIMATE.start_main_~c~0#1|) .cse11 .cse34 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~v~0#1|) .cse35 .cse12 .cse13 .cse14 .cse36 .cse15 .cse18 .cse20 .cse37 .cse22 .cse23 .cse24) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (<= (+ .cse38 |ULTIMATE.start_main_~c~0#1|) 2) .cse12 .cse13 .cse14 .cse39 .cse15 .cse16 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24) (and .cse3 .cse34 .cse12 .cse36 .cse39 .cse25 .cse37 (= 2 |ULTIMATE.start_main_~d~0#1|)))))) [2022-11-03 02:28:24,844 INFO L895 garLoopResultBuilder]: At program point L50-1(line 50) the Hoare annotation is: (let ((.cse39 (select |#memory_int| 1))) (let ((.cse33 (+ |ULTIMATE.start_main_~b~0#1| 1)) (.cse2 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse17 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0))) (.cse26 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse27 (= |ULTIMATE.start_main_~temp~0#1| 0)) (.cse1 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0)))) (.cse28 (= |ULTIMATE.start_main_~p~0#1| 0)) (.cse29 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|)) (.cse30 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse4 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse31 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (= 11 (select |#length| 2))) (.cse8 (= 2 (select |#length| 1))) (.cse32 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse10 (= (select |#valid| 3) 1)) (.cse35 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse14 (= (select |#valid| 1) 1)) (.cse36 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse16 (= (select |#valid| 0) 0)) (.cse18 (= (select |#valid| 2) 1)) (.cse20 (= (select .cse39 0) 48)) (.cse22 (= (select .cse39 1) 0)) (.cse23 (< 0 |#StackHeapBarrier|)) (.cse24 (= |#NULL.base| 0)) (.cse11 (* 2 |ULTIMATE.start_main_~b~0#1|))) (let ((.cse34 (<= |#NULL.offset| 0)) (.cse15 (= .cse11 |ULTIMATE.start_main_~v~0#1|)) (.cse25 (or (and .cse0 .cse1 (not (= (ite .cse2 1 0) 0)) (= |ULTIMATE.start_main_~p~0#1| 1) .cse4 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse7 .cse8 .cse10 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse14 .cse16 .cse17 .cse18 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse20 .cse22 .cse26 .cse23 .cse24) (and .cse0 .cse27 .cse1 .cse28 .cse29 .cse30 .cse4 .cse31 .cse7 .cse8 .cse32 .cse10 .cse35 .cse14 .cse36 .cse16 .cse18 .cse20 .cse22 .cse23 .cse24))) (.cse37 (<= 0 |#NULL.offset|)) (.cse3 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse5 (= (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~d~0#1|) |ULTIMATE.start_main_~v~0#1|)) (.cse6 (<= .cse33 |ULTIMATE.start_main_~a~0#1|)) (.cse9 (= (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~b~0#1|)) (.cse12 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse13 (<= |ULTIMATE.start_main_~c~0#1| 2)) (.cse19 (= |#NULL.offset| 0)) (.cse21 (= (+ (* |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|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= (+ .cse11 |ULTIMATE.start_main_~c~0#1|) 2) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24) (and .cse3 .cse5 (<= |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~c~0#1|) .cse12 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) .cse25 .cse19 .cse26) (and .cse0 .cse27 .cse1 .cse28 .cse29 .cse30 .cse4 .cse5 .cse31 .cse7 .cse8 .cse32 (<= .cse33 |ULTIMATE.start_main_~c~0#1|) .cse10 .cse34 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~v~0#1|) .cse35 .cse12 .cse13 .cse14 .cse36 .cse16 .cse18 .cse20 .cse37 .cse22 .cse23 .cse24) (and .cse3 .cse34 .cse12 .cse36 .cse15 .cse25 .cse37 (= 2 |ULTIMATE.start_main_~d~0#1|)) (let ((.cse38 (* |ULTIMATE.start_main_~b~0#1| 4))) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse13 .cse14 .cse16 .cse17 (<= |ULTIMATE.start_main_~v~0#1| .cse38) .cse18 .cse19 .cse20 .cse21 .cse22 (<= .cse38 |ULTIMATE.start_main_~c~0#1|) .cse23 .cse24)))))) [2022-11-03 02:28:24,845 INFO L895 garLoopResultBuilder]: At program point L42-2(lines 42 62) the Hoare annotation is: (let ((.cse40 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse41 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse39 (select |#memory_int| 1)) (.cse34 (+ .cse40 .cse41)) (.cse13 (* 2 |ULTIMATE.start_main_~b~0#1|)) (.cse37 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse38 (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse35 (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse36 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse33 (<= 1 |ULTIMATE.start_main_~y~0#1|))) (let ((.cse2 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse9 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse11 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse22 (not (= (ite .cse33 1 0) 0))) (.cse24 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0)))) (.cse23 (= (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~d~0#1|) |ULTIMATE.start_main_~v~0#1|)) (.cse7 (= (+ .cse35 .cse36) |ULTIMATE.start_main_~b~0#1|)) (.cse25 (or (= (+ .cse37 .cse38 .cse35 .cse36) (+ .cse40 |ULTIMATE.start_main_~b~0#1| .cse41)) (not (= |ULTIMATE.start_main_~c~0#1| 0)))) (.cse12 (+ .cse13 |ULTIMATE.start_main_~c~0#1|)) (.cse26 (<= 0 |ULTIMATE.start_main_~c~0#1|)) (.cse27 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse28 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse18 (= .cse34 |ULTIMATE.start_main_~a~0#1|)) (.cse30 (<= |ULTIMATE.start_main_~x~0#1| 2)) (.cse0 (= (select |#length| 3) 12)) (.cse3 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse5 (= 11 (select |#length| 2))) (.cse6 (= 2 (select |#length| 1))) (.cse4 (+ |ULTIMATE.start_main_~b~0#1| 1)) (.cse8 (= (select |#valid| 3) 1)) (.cse32 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse10 (= (select |#valid| 1) 1)) (.cse14 (= (select |#valid| 0) 0)) (.cse15 (= (select |#valid| 2) 1)) (.cse16 (= |#NULL.offset| 0)) (.cse29 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse17 (= (select .cse39 0) 48)) (.cse19 (= (select .cse39 1) 0)) (.cse31 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse20 (< 0 |#StackHeapBarrier|)) (.cse21 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= .cse4 |ULTIMATE.start_main_~a~0#1|) .cse5 .cse6 .cse7 .cse8 .cse9 (= |ULTIMATE.start_main_~s~0#1| 0) .cse10 .cse11 (= .cse12 |ULTIMATE.start_main_~y~0#1|) (= .cse13 |ULTIMATE.start_main_~v~0#1|) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (= 2 |ULTIMATE.start_main_~k~0#1|) .cse20 .cse21) (and .cse0 .cse1 .cse22 .cse3 .cse23 .cse24 .cse5 .cse6 .cse8 .cse25 .cse26 .cse27 .cse28 .cse10 (< |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~b~0#1|) .cse14 .cse15 .cse16 .cse29 .cse17 .cse18 .cse30 .cse19 .cse31 .cse20 (= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) |ULTIMATE.start_main_~x~0#1|) .cse21) (and (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|) (or (and .cse0 (= |ULTIMATE.start_main_~temp~0#1| 0) .cse1 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|) .cse2 .cse3 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) .cse5 .cse6 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|) .cse8 .cse9 .cse10 .cse11 .cse14 .cse15 .cse17 .cse19 .cse20 .cse21) (and .cse0 .cse1 .cse22 .cse3 .cse24 .cse5 .cse6 .cse8 .cse27 .cse28 .cse10 .cse14 .cse15 .cse29 .cse17 .cse19 .cse31 .cse20 .cse21)) .cse32 .cse16 .cse18 .cse30) (and .cse0 .cse1 .cse33 (<= |ULTIMATE.start_main_~v~0#1| .cse13) .cse23 .cse5 .cse6 .cse7 .cse8 .cse25 (<= .cse12 2) .cse26 .cse27 .cse28 .cse10 .cse14 .cse15 .cse16 .cse29 .cse17 .cse18 .cse30 .cse19 .cse31 .cse20 .cse21) (and (<= (+ |ULTIMATE.start_main_~x~0#1| 1) |ULTIMATE.start_main_~y~0#1|) .cse0 (= .cse34 (+ |ULTIMATE.start_main_~a~0#1| .cse35 .cse36)) .cse3 .cse5 .cse6 (<= .cse4 |ULTIMATE.start_main_~c~0#1|) .cse8 (= .cse34 (+ .cse37 .cse38 |ULTIMATE.start_main_~c~0#1|)) .cse32 (<= |ULTIMATE.start_main_~c~0#1| 2) .cse10 .cse14 .cse15 .cse16 (= (+ |ULTIMATE.start_main_~q~0#1| (* 2 |ULTIMATE.start_main_~p~0#1|)) 0) .cse29 (= |ULTIMATE.start_main_~y~0#1| (+ (* 2 |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~b~0#1|)) .cse17 .cse19 .cse31 .cse20 .cse21))))) [2022-11-03 02:28:24,845 INFO L899 garLoopResultBuilder]: For program point L42-3(lines 42 62) no Hoare annotation was computed. [2022-11-03 02:28:24,845 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-11-03 02:28:24,845 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))) [2022-11-03 02:28:24,845 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2022-11-03 02:28:24,846 INFO L895 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: (let ((.cse41 (select |#memory_int| 1))) (let ((.cse37 (+ (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (.cse25 (+ |ULTIMATE.start_main_~b~0#1| 1)) (.cse2 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse17 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) 1 0) 0))) (.cse28 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse0 (= (select |#length| 3) 12)) (.cse29 (= |ULTIMATE.start_main_~temp~0#1| 0)) (.cse1 (not (= 0 (ite (<= 1 |ULTIMATE.start_main_~x~0#1|) 1 0)))) (.cse30 (= |ULTIMATE.start_main_~p~0#1| 0)) (.cse31 (= |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~temp~0#1|)) (.cse32 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse4 (not (= (ite (and (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse33 (< |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse7 (= 11 (select |#length| 2))) (.cse8 (= 2 (select |#length| 1))) (.cse34 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse10 (= (select |#valid| 3) 1)) (.cse36 (= |ULTIMATE.start_main_~q~0#1| 1)) (.cse14 (= (select |#valid| 1) 1)) (.cse38 (= |ULTIMATE.start_main_~r~0#1| 1)) (.cse16 (= (select |#valid| 0) 0)) (.cse18 (= (select |#valid| 2) 1)) (.cse20 (= (select .cse41 0) 48)) (.cse22 (= (select .cse41 1) 0)) (.cse23 (< 0 |#StackHeapBarrier|)) (.cse24 (= |#NULL.base| 0)) (.cse11 (* 2 |ULTIMATE.start_main_~b~0#1|))) (let ((.cse26 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~v~0#1|)) (.cse35 (<= |#NULL.offset| 0)) (.cse15 (= .cse11 |ULTIMATE.start_main_~v~0#1|)) (.cse27 (or (and .cse0 .cse1 (not (= (ite .cse2 1 0) 0)) (= |ULTIMATE.start_main_~p~0#1| 1) .cse4 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse7 .cse8 .cse10 (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 0) .cse14 .cse16 .cse17 .cse18 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse20 .cse22 .cse28 .cse23 .cse24) (and .cse0 .cse29 .cse1 .cse30 .cse31 .cse32 .cse4 .cse33 .cse7 .cse8 .cse34 .cse10 .cse36 .cse14 .cse38 .cse16 .cse18 .cse20 .cse22 .cse23 .cse24))) (.cse39 (<= 0 |#NULL.offset|)) (.cse3 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~c~0#1|)) (.cse5 (= (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~d~0#1|) |ULTIMATE.start_main_~v~0#1|)) (.cse6 (<= .cse25 |ULTIMATE.start_main_~a~0#1|)) (.cse9 (= (+ (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|)) |ULTIMATE.start_main_~b~0#1|)) (.cse12 (= |ULTIMATE.start_main_~k~0#1| 0)) (.cse13 (<= |ULTIMATE.start_main_~c~0#1| 2)) (.cse19 (= |#NULL.offset| 0)) (.cse21 (= .cse37 |ULTIMATE.start_main_~a~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= (+ .cse11 |ULTIMATE.start_main_~c~0#1|) 2) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse7 .cse8 .cse9 (<= .cse25 |ULTIMATE.start_main_~c~0#1|) .cse10 .cse26 .cse12 .cse13 .cse14 (<= .cse11 |ULTIMATE.start_main_~v~0#1|) .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24) (and .cse3 .cse5 (<= |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~c~0#1|) .cse12 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~c~0#1|) .cse27 .cse19 .cse28) (and .cse0 .cse29 .cse1 .cse30 .cse31 .cse32 .cse4 .cse5 .cse33 .cse7 .cse8 .cse34 .cse10 .cse35 .cse26 .cse36 (= .cse37 (+ (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|) (* |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~c~0#1|)) .cse12 .cse14 .cse38 .cse16 .cse18 .cse20 .cse39 .cse22 .cse23 .cse24) (and .cse3 .cse35 .cse12 .cse38 .cse15 .cse27 .cse39 (= 2 |ULTIMATE.start_main_~d~0#1|)) (let ((.cse40 (* |ULTIMATE.start_main_~b~0#1| 4))) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse13 .cse14 .cse16 .cse17 (<= |ULTIMATE.start_main_~v~0#1| .cse40) .cse18 .cse19 .cse20 .cse21 .cse22 (<= .cse40 |ULTIMATE.start_main_~c~0#1|) .cse23 .cse24)))))) [2022-11-03 02:28:24,846 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2022-11-03 02:28:24,846 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 7 9) the Hoare annotation is: true [2022-11-03 02:28:24,846 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2022-11-03 02:28:24,846 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 10 16) the Hoare annotation is: true [2022-11-03 02:28:24,846 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2022-11-03 02:28:24,846 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2022-11-03 02:28:24,847 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 16) no Hoare annotation was computed. [2022-11-03 02:28:24,847 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 16) no Hoare annotation was computed. [2022-11-03 02:28:24,847 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2022-11-03 02:28:24,850 INFO L444 BasicCegarLoop]: Path program histogram: [7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:28:24,853 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:28:24,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:28:24 BoogieIcfgContainer [2022-11-03 02:28:24,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:28:24,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:28:24,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:28:24,910 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:28:24,910 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:22:29" (3/4) ... [2022-11-03 02:28:24,914 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:28:24,921 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-03 02:28:24,921 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-03 02:28:24,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-03 02:28:24,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-03 02:28:24,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-03 02:28:24,927 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:28:24,983 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:28:24,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:28:24,984 INFO L158 Benchmark]: Toolchain (without parser) took 356134.85ms. Allocated memory was 153.1MB in the beginning and 597.7MB in the end (delta: 444.6MB). Free memory was 118.3MB in the beginning and 521.4MB in the end (delta: -403.1MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2022-11-03 02:28:24,984 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:28:24,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.03ms. Allocated memory is still 153.1MB. Free memory was 118.0MB in the beginning and 126.4MB in the end (delta: -8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 02:28:24,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.21ms. Allocated memory is still 153.1MB. Free memory was 126.4MB in the beginning and 124.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:28:24,985 INFO L158 Benchmark]: Boogie Preprocessor took 48.05ms. Allocated memory is still 153.1MB. Free memory was 124.9MB in the beginning and 123.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:28:24,985 INFO L158 Benchmark]: RCFGBuilder took 380.06ms. Allocated memory is still 153.1MB. Free memory was 123.6MB in the beginning and 111.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 02:28:24,986 INFO L158 Benchmark]: TraceAbstraction took 355227.01ms. Allocated memory was 153.1MB in the beginning and 597.7MB in the end (delta: 444.6MB). Free memory was 110.3MB in the beginning and 524.5MB in the end (delta: -414.3MB). Peak memory consumption was 355.0MB. Max. memory is 16.1GB. [2022-11-03 02:28:24,986 INFO L158 Benchmark]: Witness Printer took 73.74ms. Allocated memory is still 597.7MB. Free memory was 524.5MB in the beginning and 521.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:28:24,987 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 90.2MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.03ms. Allocated memory is still 153.1MB. Free memory was 118.0MB in the beginning and 126.4MB in the end (delta: -8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.21ms. Allocated memory is still 153.1MB. Free memory was 126.4MB in the beginning and 124.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.05ms. Allocated memory is still 153.1MB. Free memory was 124.9MB in the beginning and 123.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 380.06ms. Allocated memory is still 153.1MB. Free memory was 123.6MB in the beginning and 111.1MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 355227.01ms. Allocated memory was 153.1MB in the beginning and 597.7MB in the end (delta: 444.6MB). Free memory was 110.3MB in the beginning and 524.5MB in the end (delta: -414.3MB). Peak memory consumption was 355.0MB. Max. memory is 16.1GB. * Witness Printer took 73.74ms. Allocated memory is still 597.7MB. Free memory was 524.5MB in the beginning and 521.4MB 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: 355.1s, OverallIterations: 19, TraceHistogramMax: 17, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 109.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 94.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 1130 SdHoareTripleChecker+Valid, 58.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1062 mSDsluCounter, 2894 SdHoareTripleChecker+Invalid, 57.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2331 mSDsCounter, 1754 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6255 IncrementalHoareTripleChecker+Invalid, 8019 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1754 mSolverCounterUnsat, 704 mSDtfsCounter, 6255 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3437 GetRequests, 2614 SyntacticMatches, 227 SemanticMatches, 596 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14452 ImplicationChecksByTransitivity, 112.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=321occurred in iteration=14, InterpolantAutomatonStates: 286, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 327 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 263 PreInvPairs, 331 NumberOfFragments, 6615 HoareAnnotationTreeSize, 263 FomulaSimplifications, 16519 FormulaSimplificationTreeSizeReduction, 11.8s HoareSimplificationTime, 15 FomulaSimplificationsInter, 305323 FormulaSimplificationTreeSizeReductionInter, 82.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 1243 NumberOfCodeBlocks, 1086 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2231 ConstructedInterpolants, 11 QuantifiedInterpolants, 10713 SizeOfPredicates, 102 NumberOfNonLiveVariables, 3143 ConjunctsInSsa, 403 ConjunctsInUnsatCore, 34 InterpolantComputations, 6 PerfectInterpolantSequences, 5407/5892 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: 1.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 5, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 38, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 43, TOOLS_POST_TIME: 0.7s, TOOLS_POST_CALL_APPLICATIONS: 25, TOOLS_POST_CALL_TIME: 0.6s, TOOLS_POST_RETURN_APPLICATIONS: 16, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 84, TOOLS_QUANTIFIERELIM_TIME: 1.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 119, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 30, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 4, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 38, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 0.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 4, CALL_SUMMARIZER_APPLICATIONS: 16, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 487, DAG_COMPRESSION_RETAINED_NODES: 119, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && !(0 == (if 1 <= x then 1 else 0))) && a == y) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && s * y + q * x == b) && \valid[3] == 1) && q == 1) && s == 0) && \valid[1] == 1) && r == 1) && 2 * b + c == y) && 2 * b == v) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && unknown-#memory_int-unknown[1][1] == 0) && 2 == k) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && !(0 == (if 1 <= x then 1 else 0))) && !((if 1 <= y then 1 else 0) == 0)) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b * d == v) && b == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && (k * q * x + k * s * y + s * y + q * x == r * y + b + p * x || !(c == 0))) && 0 <= c) && r == 0) && q == 0) && \valid[1] == 1) && c < b) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && x <= 2) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && b + c == x) && #NULL == 0)) || (((((a == c && ((((((((((((((((((((unknown-#length-unknown[3] == 12 && temp == 0) && !(0 == (if 1 <= x then 1 else 0))) && s == temp) && a == y) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && x < y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b == x) && \valid[3] == 1) && q == 1) && \valid[1] == 1) && r == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((unknown-#length-unknown[3] == 12 && !(0 == (if 1 <= x then 1 else 0))) && !((if 1 <= y then 1 else 0) == 0)) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && r == 0) && q == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0))) && k == 0) && #NULL == 0) && r * y + p * x == a) && x <= 2)) || (((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && !(0 == (if 1 <= x then 1 else 0))) && 1 <= y) && v <= 2 * b) && b * d == v) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && s * y + q * x == b) && \valid[3] == 1) && (k * q * x + k * s * y + s * y + q * x == r * y + b + p * x || !(c == 0))) && 2 * b + c <= 2) && 0 <= c) && r == 0) && q == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && x <= 2) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((((((((x + 1 <= y && unknown-#length-unknown[3] == 12) && r * y + p * x == a + s * y + q * x) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b + 1 <= c) && \valid[3] == 1) && r * y + p * x == k * q * x + k * s * y + c) && k == 0) && c <= 2) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && q + 2 * p == 0) && a == x) && y == 2 * x + b) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && !(0 == (if 1 <= x then 1 else 0))) && 1 <= y) && a == c) && b <= 1) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b * d == v) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && s * y + q * x == b) && \valid[3] == 1) && k == 0) && c <= 2) && \valid[1] == 1) && \valid[0] == 0) && !((if 0 <= x && x <= 2 then 1 else 0) == 0)) && v <= b * 4) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && unknown-#memory_int-unknown[1][1] == 0) && b * 4 <= c) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((a == c && b * d == v) && v <= c) && k == 0) && b <= c) && (((((((((((((((((((((unknown-#length-unknown[3] == 12 && !(0 == (if 1 <= x then 1 else 0))) && !((if 1 <= y then 1 else 0) == 0)) && p == 1) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && r == 0) && q == 0) && \valid[1] == 1) && \valid[0] == 0) && !((if 0 <= x && x <= 2 then 1 else 0) == 0)) && \valid[2] == 1) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((((unknown-#length-unknown[3] == 12 && temp == 0) && !(0 == (if 1 <= x then 1 else 0))) && p == 0) && s == temp) && a == y) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && x < y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b == x) && \valid[3] == 1) && q == 1) && \valid[1] == 1) && r == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0))) && #NULL == 0) && s == 1)) || (((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && temp == 0) && !(0 == (if 1 <= x then 1 else 0))) && p == 0) && s == temp) && a == y) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b * d == v) && x < y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b == x) && b + 1 <= c) && \valid[3] == 1) && #NULL <= 0) && b == v) && q == 1) && k == 0) && c <= 2) && \valid[1] == 1) && r == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && 0 <= #NULL) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && !(0 == (if 1 <= x then 1 else 0))) && 1 <= y) && a == c) && b <= 1) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b * d == v) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && s * y + q * x == b) && \valid[3] == 1) && 2 * b + c <= 2) && k == 0) && c <= 2) && \valid[1] == 1) && 2 * b == v) && \valid[0] == 0) && !((if 0 <= x && x <= 2 then 1 else 0) == 0)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && r * y + p * x == a) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((a == c && #NULL <= 0) && k == 0) && r == 1) && 2 * b == v) && (((((((((((((((((((((unknown-#length-unknown[3] == 12 && !(0 == (if 1 <= x then 1 else 0))) && !((if 1 <= y then 1 else 0) == 0)) && p == 1) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && r == 0) && q == 0) && \valid[1] == 1) && \valid[0] == 0) && !((if 0 <= x && x <= 2 then 1 else 0) == 0)) && \valid[2] == 1) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((((unknown-#length-unknown[3] == 12 && temp == 0) && !(0 == (if 1 <= x then 1 else 0))) && p == 0) && s == temp) && a == y) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && x < y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b == x) && \valid[3] == 1) && q == 1) && \valid[1] == 1) && r == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0))) && 0 <= #NULL) && 2 == d) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((x + 1 <= y && unknown-#length-unknown[3] == 12) && !(0 == (if 1 <= x then 1 else 0))) && 1 <= y) && b <= 1) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && x == p * x) && r == 0) && b <= c) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && q + 2 * p == 0) && a == x) && y == 2 * x + b) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 3 * c < b + 1) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((0 <= b && unknown-#length-unknown[3] == 12) && !(0 == (if 1 <= x then 1 else 0))) && r * y + p * x == a + s * y + q * x) && p == 0) && 1 <= y) && a == y) && b <= 1) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b + 1 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 3 * b <= 0) && 0 <= c) && 3 * c <= 0) && \valid[1] == 1) && r == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && x <= 2) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && temp == 0) && !(0 == (if 1 <= x then 1 else 0))) && !(y <= c)) && c == x) && a == y) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && b == c) && \valid[3] == 1) && q == 1) && k == 0) && \valid[1] == 1) && r == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && k + s == temp) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((unknown-#length-unknown[3] == 12 && !(0 == (if 1 <= x then 1 else 0))) && !((if 1 <= y then 1 else 0) == 0)) && !((if y <= 2 && 0 <= y then 1 else 0) == 0)) && b == y) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && r == 0) && q == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && a == x) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && s == 1) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) && #NULL <= 0) && r * y + p * x == a) && 0 <= #NULL) && x <= 2) RESULT: Ultimate proved your program to be correct! [2022-11-03 02:28:25,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d6bbd16-1e63-4a9b-a0e9-94077807081a/bin/utaipan-7li7fVZpFI/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