./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/cohencu-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench/cohencu-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW --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 bf57d72e341b105161cbeacf29e58db93d2b67f8e0e097e4dbed74551cbdcfff --- 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-4e7fbc6 [2022-11-23 14:18:43,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:18:43,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:18:44,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:18:44,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:18:44,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:18:44,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:18:44,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:18:44,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:18:44,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:18:44,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:18:44,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:18:44,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:18:44,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:18:44,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:18:44,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:18:44,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:18:44,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:18:44,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:18:44,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:18:44,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:18:44,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:18:44,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:18:44,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:18:44,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:18:44,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:18:44,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:18:44,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:18:44,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:18:44,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:18:44,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:18:44,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:18:44,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:18:44,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:18:44,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:18:44,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:18:44,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:18:44,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:18:44,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:18:44,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:18:44,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:18:44,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:18:44,079 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:18:44,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:18:44,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:18:44,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:18:44,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:18:44,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:18:44,081 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:18:44,081 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:18:44,081 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:18:44,081 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:18:44,082 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:18:44,082 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:18:44,082 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:18:44,082 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:18:44,082 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:18:44,083 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:18:44,083 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:18:44,083 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:18:44,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:18:44,084 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:18:44,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:18:44,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:18:44,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:18:44,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:18:44,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:18:44,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:18:44,085 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:18:44,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:18:44,086 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:18:44,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:18:44,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:18:44,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:18:44,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:18:44,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:18:44,087 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:18:44,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:18:44,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:18:44,088 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:18:44,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:18:44,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:18:44,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:18:44,088 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_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf57d72e341b105161cbeacf29e58db93d2b67f8e0e097e4dbed74551cbdcfff [2022-11-23 14:18:44,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:18:44,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:18:44,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:18:44,421 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:18:44,422 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:18:44,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/nla-digbench/cohencu-ll.c [2022-11-23 14:18:47,513 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:18:47,721 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:18:47,722 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/sv-benchmarks/c/nla-digbench/cohencu-ll.c [2022-11-23 14:18:47,728 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/data/135feb81a/09f2a9fe49084d17bebca0e8f35e8e82/FLAG8010b3a9d [2022-11-23 14:18:47,753 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/data/135feb81a/09f2a9fe49084d17bebca0e8f35e8e82 [2022-11-23 14:18:47,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:18:47,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:18:47,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:18:47,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:18:47,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:18:47,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:47" (1/1) ... [2022-11-23 14:18:47,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cef853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:47, skipping insertion in model container [2022-11-23 14:18:47,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:47" (1/1) ... [2022-11-23 14:18:47,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:18:47,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:18:47,994 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/sv-benchmarks/c/nla-digbench/cohencu-ll.c[588,601] [2022-11-23 14:18:48,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:18:48,048 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:18:48,065 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/sv-benchmarks/c/nla-digbench/cohencu-ll.c[588,601] [2022-11-23 14:18:48,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:18:48,111 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:18:48,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48 WrapperNode [2022-11-23 14:18:48,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:18:48,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:18:48,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:18:48,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:18:48,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (1/1) ... [2022-11-23 14:18:48,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (1/1) ... [2022-11-23 14:18:48,168 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-11-23 14:18:48,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:18:48,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:18:48,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:18:48,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:18:48,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (1/1) ... [2022-11-23 14:18:48,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (1/1) ... [2022-11-23 14:18:48,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (1/1) ... [2022-11-23 14:18:48,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (1/1) ... [2022-11-23 14:18:48,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (1/1) ... [2022-11-23 14:18:48,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (1/1) ... [2022-11-23 14:18:48,204 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (1/1) ... [2022-11-23 14:18:48,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (1/1) ... [2022-11-23 14:18:48,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:18:48,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:18:48,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:18:48,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:18:48,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (1/1) ... [2022-11-23 14:18:48,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:18:48,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:18:48,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:18:48,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:18:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:18:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:18:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:18:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:18:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:18:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:18:48,355 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:18:48,358 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:18:48,595 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:18:48,643 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:18:48,643 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:18:48,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:48 BoogieIcfgContainer [2022-11-23 14:18:48,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:18:48,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:18:48,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:18:48,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:18:48,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:18:47" (1/3) ... [2022-11-23 14:18:48,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f60786f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:48, skipping insertion in model container [2022-11-23 14:18:48,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:48" (2/3) ... [2022-11-23 14:18:48,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f60786f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:48, skipping insertion in model container [2022-11-23 14:18:48,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:48" (3/3) ... [2022-11-23 14:18:48,668 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu-ll.c [2022-11-23 14:18:48,697 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:18:48,697 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:18:48,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:18:48,773 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;@56d6b968, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:18:48,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:18:48,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 14:18:48,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:18:48,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:18:48,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:18:48,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:18:48,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:18:48,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1364779056, now seen corresponding path program 1 times [2022-11-23 14:18:48,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:18:48,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838148301] [2022-11-23 14:18:48,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:18:48,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:18:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:18:48,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:18:48,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:18:48,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838148301] [2022-11-23 14:18:48,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838148301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:18:48,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:18:48,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:18:48,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907741814] [2022-11-23 14:18:48,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:18:49,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:18:49,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:18:49,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:18:49,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:18:49,044 INFO L87 Difference]: Start difference. First operand has 22 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:18:49,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:18:49,114 INFO L93 Difference]: Finished difference Result 43 states and 78 transitions. [2022-11-23 14:18:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:18:49,117 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 14:18:49,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:18:49,132 INFO L225 Difference]: With dead ends: 43 [2022-11-23 14:18:49,132 INFO L226 Difference]: Without dead ends: 20 [2022-11-23 14:18:49,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:18:49,155 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:18:49,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:18:49,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-23 14:18:49,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-23 14:18:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-23 14:18:49,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 30 transitions. [2022-11-23 14:18:49,206 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 30 transitions. Word has length 6 [2022-11-23 14:18:49,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:18:49,207 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 30 transitions. [2022-11-23 14:18:49,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:18:49,207 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2022-11-23 14:18:49,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:18:49,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:18:49,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:18:49,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:18:49,210 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:18:49,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:18:49,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1420488226, now seen corresponding path program 1 times [2022-11-23 14:18:49,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:18:49,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847002071] [2022-11-23 14:18:49,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:18:49,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:18:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:18:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:18:49,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:18:49,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847002071] [2022-11-23 14:18:49,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847002071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:18:49,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:18:49,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:18:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445684917] [2022-11-23 14:18:49,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:18:49,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:18:49,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:18:49,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:18:49,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:18:49,570 INFO L87 Difference]: Start difference. First operand 20 states and 30 transitions. Second operand has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:18:49,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:18:49,665 INFO L93 Difference]: Finished difference Result 26 states and 35 transitions. [2022-11-23 14:18:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:18:49,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 14:18:49,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:18:49,667 INFO L225 Difference]: With dead ends: 26 [2022-11-23 14:18:49,667 INFO L226 Difference]: Without dead ends: 24 [2022-11-23 14:18:49,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:18:49,669 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:18:49,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 49 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:18:49,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-23 14:18:49,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-23 14:18:49,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-23 14:18:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2022-11-23 14:18:49,683 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 33 transitions. Word has length 6 [2022-11-23 14:18:49,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:18:49,683 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 33 transitions. [2022-11-23 14:18:49,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:18:49,684 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2022-11-23 14:18:49,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 14:18:49,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:18:49,685 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:18:49,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:18:49,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:18:49,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:18:49,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1296730394, now seen corresponding path program 1 times [2022-11-23 14:18:49,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:18:49,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110241923] [2022-11-23 14:18:49,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:18:49,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:18:49,698 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:18:49,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1430739888] [2022-11-23 14:18:49,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:18:49,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:18:49,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:18:49,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:18:49,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:18:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:18:49,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 14:18:49,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:18:49,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:18:49,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:18:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:18:50,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:18:50,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110241923] [2022-11-23 14:18:50,090 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:18:50,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430739888] [2022-11-23 14:18:50,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430739888] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:18:50,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1771370244] [2022-11-23 14:18:50,119 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-23 14:18:50,120 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:18:50,123 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:18:50,129 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:18:50,129 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:18:50,289 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-23 14:18:50,304 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:18:50,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1771370244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:18:50,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:18:50,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 7] total 15 [2022-11-23 14:18:50,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625364069] [2022-11-23 14:18:50,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:18:50,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:18:50,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:18:50,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:18:50,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-23 14:18:50,579 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:18:50,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:18:50,825 INFO L93 Difference]: Finished difference Result 47 states and 65 transitions. [2022-11-23 14:18:50,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:18:50,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-23 14:18:50,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:18:50,827 INFO L225 Difference]: With dead ends: 47 [2022-11-23 14:18:50,827 INFO L226 Difference]: Without dead ends: 39 [2022-11-23 14:18:50,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-23 14:18:50,833 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 4 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:18:50,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 54 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:18:50,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-23 14:18:50,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-23 14:18:50,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-23 14:18:50,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2022-11-23 14:18:50,868 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 11 [2022-11-23 14:18:50,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:18:50,868 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2022-11-23 14:18:50,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:18:50,869 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2022-11-23 14:18:50,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-23 14:18:50,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:18:50,870 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:18:50,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:18:51,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:18:51,077 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:18:51,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:18:51,077 INFO L85 PathProgramCache]: Analyzing trace with hash 942445502, now seen corresponding path program 1 times [2022-11-23 14:18:51,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:18:51,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598658454] [2022-11-23 14:18:51,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:18:51,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:18:51,088 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:18:51,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781226029] [2022-11-23 14:18:51,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:18:51,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:18:51,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:18:51,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:18:51,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:18:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:18:51,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 14:18:51,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:18:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 11 proven. 19 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-23 14:18:51,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:18:51,438 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-23 14:18:51,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:18:51,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598658454] [2022-11-23 14:18:51,439 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:18:51,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781226029] [2022-11-23 14:18:51,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781226029] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:18:51,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1506567658] [2022-11-23 14:18:51,442 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-23 14:18:51,442 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:18:51,442 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:18:51,443 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:18:51,443 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:18:55,165 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-23 14:18:55,209 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:18:59,064 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '662#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 14:18:59,067 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:18:59,067 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:18:59,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-23 14:18:59,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119720909] [2022-11-23 14:18:59,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 14:18:59,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:18:59,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:18:59,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:18:59,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2022-11-23 14:18:59,069 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-23 14:18:59,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:18:59,614 INFO L93 Difference]: Finished difference Result 62 states and 83 transitions. [2022-11-23 14:18:59,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:18:59,615 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 38 [2022-11-23 14:18:59,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:18:59,616 INFO L225 Difference]: With dead ends: 62 [2022-11-23 14:18:59,616 INFO L226 Difference]: Without dead ends: 60 [2022-11-23 14:18:59,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:18:59,618 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 22 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:18:59,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 39 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:18:59,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-23 14:18:59,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 47. [2022-11-23 14:18:59,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-23 14:18:59,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2022-11-23 14:18:59,637 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 38 [2022-11-23 14:18:59,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:18:59,638 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2022-11-23 14:18:59,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-23 14:18:59,638 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-11-23 14:18:59,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:18:59,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:18:59,639 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:18:59,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:18:59,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:18:59,845 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:18:59,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:18:59,846 INFO L85 PathProgramCache]: Analyzing trace with hash 868300998, now seen corresponding path program 2 times [2022-11-23 14:18:59,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:18:59,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100244780] [2022-11-23 14:18:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:18:59,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:18:59,862 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:18:59,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487770854] [2022-11-23 14:18:59,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:18:59,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:18:59,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:18:59,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:18:59,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:18:59,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-23 14:18:59,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:18:59,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 14:18:59,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:19:00,082 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-23 14:19:00,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:19:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-23 14:19:00,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:00,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100244780] [2022-11-23 14:19:00,189 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:19:00,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487770854] [2022-11-23 14:19:00,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487770854] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:19:00,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1440838477] [2022-11-23 14:19:00,202 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-23 14:19:00,202 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:19:00,203 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:19:00,203 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:19:00,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:19:03,946 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-23 14:19:03,951 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:19:04,990 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1111#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 14:19:04,991 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:19:04,991 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:19:04,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-23 14:19:04,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071654466] [2022-11-23 14:19:04,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 14:19:04,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:19:04,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:04,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:19:04,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-23 14:19:04,993 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-23 14:19:05,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:19:05,323 INFO L93 Difference]: Finished difference Result 83 states and 113 transitions. [2022-11-23 14:19:05,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:19:05,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 43 [2022-11-23 14:19:05,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:19:05,326 INFO L225 Difference]: With dead ends: 83 [2022-11-23 14:19:05,327 INFO L226 Difference]: Without dead ends: 81 [2022-11-23 14:19:05,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2022-11-23 14:19:05,332 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 12 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:19:05,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 181 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:19:05,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-23 14:19:05,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 70. [2022-11-23 14:19:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 36 states have internal predecessors, (36), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-23 14:19:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 91 transitions. [2022-11-23 14:19:05,373 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 91 transitions. Word has length 43 [2022-11-23 14:19:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:19:05,374 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 91 transitions. [2022-11-23 14:19:05,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-23 14:19:05,374 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 91 transitions. [2022-11-23 14:19:05,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-23 14:19:05,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:05,378 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:19:05,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 14:19:05,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:05,583 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:05,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:05,584 INFO L85 PathProgramCache]: Analyzing trace with hash -233860994, now seen corresponding path program 3 times [2022-11-23 14:19:05,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:05,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879026533] [2022-11-23 14:19:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:05,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:05,592 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:19:05,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1689122360] [2022-11-23 14:19:05,593 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 14:19:05,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:05,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:05,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:19:05,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:19:05,651 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 14:19:05,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:19:05,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-23 14:19:05,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:19:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-23 14:19:05,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:19:06,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:06,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879026533] [2022-11-23 14:19:06,094 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:19:06,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689122360] [2022-11-23 14:19:06,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689122360] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:19:06,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1974391602] [2022-11-23 14:19:06,097 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-23 14:19:06,098 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:19:06,098 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:19:06,098 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:19:06,098 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:19:08,907 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-23 14:19:08,948 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:19:10,556 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1617#(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 [2022-11-23 14:19:10,556 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:19:10,556 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:19:10,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2022-11-23 14:19:10,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40801867] [2022-11-23 14:19:10,556 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-23 14:19:10,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:19:10,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:10,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:19:10,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-11-23 14:19:10,558 INFO L87 Difference]: Start difference. First operand 70 states and 91 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:19:11,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:19:11,024 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2022-11-23 14:19:11,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:19:11,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2022-11-23 14:19:11,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:19:11,028 INFO L225 Difference]: With dead ends: 94 [2022-11-23 14:19:11,028 INFO L226 Difference]: Without dead ends: 85 [2022-11-23 14:19:11,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2022-11-23 14:19:11,030 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 10 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:19:11,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 52 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:19:11,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-23 14:19:11,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-11-23 14:19:11,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 45 states have (on average 1.0666666666666667) internal successors, (48), 48 states have internal predecessors, (48), 27 states have call successors, (27), 12 states have call predecessors, (27), 12 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2022-11-23 14:19:11,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 100 transitions. [2022-11-23 14:19:11,058 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 100 transitions. Word has length 48 [2022-11-23 14:19:11,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:19:11,059 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 100 transitions. [2022-11-23 14:19:11,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 14:19:11,060 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 100 transitions. [2022-11-23 14:19:11,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 14:19:11,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:11,061 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:19:11,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-23 14:19:11,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 14:19:11,266 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:11,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:11,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2050291499, now seen corresponding path program 1 times [2022-11-23 14:19:11,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:11,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192976616] [2022-11-23 14:19:11,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:11,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:11,276 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:19:11,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748971559] [2022-11-23 14:19:11,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:11,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:11,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:11,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:19:11,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 14:19:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:11,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-23 14:19:11,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:19:11,986 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 21 proven. 38 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-23 14:19:11,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:19:12,301 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 23 proven. 36 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-23 14:19:12,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:12,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192976616] [2022-11-23 14:19:12,302 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:19:12,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748971559] [2022-11-23 14:19:12,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748971559] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:19:12,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1888758934] [2022-11-23 14:19:12,305 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-23 14:19:12,305 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:19:12,306 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:19:12,306 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:19:12,306 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:19:15,348 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-23 14:19:15,352 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:19:20,078 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2292#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 14:19:20,078 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:19:20,078 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:19:20,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-11-23 14:19:20,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882621857] [2022-11-23 14:19:20,079 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 14:19:20,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 14:19:20,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:20,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 14:19:20,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2022-11-23 14:19:20,081 INFO L87 Difference]: Start difference. First operand 85 states and 100 transitions. Second operand has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 7 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-23 14:19:20,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:19:20,888 INFO L93 Difference]: Finished difference Result 91 states and 105 transitions. [2022-11-23 14:19:20,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:19:20,888 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 7 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) Word has length 64 [2022-11-23 14:19:20,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:19:20,890 INFO L225 Difference]: With dead ends: 91 [2022-11-23 14:19:20,890 INFO L226 Difference]: Without dead ends: 89 [2022-11-23 14:19:20,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=149, Invalid=843, Unknown=0, NotChecked=0, Total=992 [2022-11-23 14:19:20,892 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:19:20,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 45 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:19:20,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-23 14:19:20,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-11-23 14:19:20,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 48 states have (on average 1.0625) internal successors, (51), 51 states have internal predecessors, (51), 27 states have call successors, (27), 13 states have call predecessors, (27), 13 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2022-11-23 14:19:20,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 103 transitions. [2022-11-23 14:19:20,928 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 103 transitions. Word has length 64 [2022-11-23 14:19:20,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:19:20,929 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 103 transitions. [2022-11-23 14:19:20,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 7 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-23 14:19:20,929 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 103 transitions. [2022-11-23 14:19:20,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 14:19:20,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:20,931 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:19:20,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:19:21,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 14:19:21,139 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:21,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:21,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2018193201, now seen corresponding path program 1 times [2022-11-23 14:19:21,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:21,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276903750] [2022-11-23 14:19:21,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:21,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:21,150 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:19:21,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129541195] [2022-11-23 14:19:21,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:21,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:21,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:21,152 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:19:21,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 14:19:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:21,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 14:19:21,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:19:21,746 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 23 proven. 41 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-23 14:19:21,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:19:22,135 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 23 proven. 41 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-23 14:19:22,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:22,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276903750] [2022-11-23 14:19:22,135 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:19:22,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129541195] [2022-11-23 14:19:22,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129541195] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:19:22,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [120172580] [2022-11-23 14:19:22,138 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-23 14:19:22,138 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:19:22,139 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:19:22,139 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:19:22,139 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:19:25,095 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-23 14:19:25,100 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:19:30,445 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3008#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 14:19:30,450 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:19:30,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:19:30,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-23 14:19:30,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576755147] [2022-11-23 14:19:30,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 14:19:30,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 14:19:30,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:30,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 14:19:30,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:19:30,453 INFO L87 Difference]: Start difference. First operand 89 states and 103 transitions. Second operand has 15 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 7 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2022-11-23 14:19:31,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:19:31,810 INFO L93 Difference]: Finished difference Result 116 states and 139 transitions. [2022-11-23 14:19:31,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 14:19:31,810 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 7 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) Word has length 69 [2022-11-23 14:19:31,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:19:31,812 INFO L225 Difference]: With dead ends: 116 [2022-11-23 14:19:31,812 INFO L226 Difference]: Without dead ends: 107 [2022-11-23 14:19:31,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=185, Invalid=937, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 14:19:31,814 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 24 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:19:31,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 47 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 14:19:31,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-23 14:19:31,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-23 14:19:31,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 57 states have (on average 1.0701754385964912) internal successors, (61), 59 states have internal predecessors, (61), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2022-11-23 14:19:31,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2022-11-23 14:19:31,858 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 69 [2022-11-23 14:19:31,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:19:31,858 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2022-11-23 14:19:31,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 7 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2022-11-23 14:19:31,859 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2022-11-23 14:19:31,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 14:19:31,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:31,860 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1] [2022-11-23 14:19:31,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:19:32,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 14:19:32,067 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:32,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:32,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2117199194, now seen corresponding path program 4 times [2022-11-23 14:19:32,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:32,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123200276] [2022-11-23 14:19:32,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:32,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:32,076 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:19:32,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333727938] [2022-11-23 14:19:32,087 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 14:19:32,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:32,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:32,089 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:19:32,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 14:19:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:19:32,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-23 14:19:32,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:19:32,392 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 25 proven. 54 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-11-23 14:19:32,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:19:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 25 proven. 54 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-11-23 14:19:33,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:33,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123200276] [2022-11-23 14:19:33,003 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:19:33,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333727938] [2022-11-23 14:19:33,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333727938] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:19:33,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1593554580] [2022-11-23 14:19:33,014 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-23 14:19:33,014 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:19:33,015 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:19:33,016 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:19:33,016 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:19:35,644 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-23 14:19:35,679 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:19:42,043 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3827#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 14:19:42,043 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:19:42,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:19:42,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-23 14:19:42,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176387153] [2022-11-23 14:19:42,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 14:19:42,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 14:19:42,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:42,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 14:19:42,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2022-11-23 14:19:42,047 INFO L87 Difference]: Start difference. First operand 107 states and 128 transitions. Second operand has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 13 states have internal predecessors, (25), 7 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2022-11-23 14:19:45,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:19:45,001 INFO L93 Difference]: Finished difference Result 127 states and 150 transitions. [2022-11-23 14:19:45,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:19:45,001 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 13 states have internal predecessors, (25), 7 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) Word has length 75 [2022-11-23 14:19:45,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:19:45,003 INFO L225 Difference]: With dead ends: 127 [2022-11-23 14:19:45,003 INFO L226 Difference]: Without dead ends: 109 [2022-11-23 14:19:45,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:19:45,004 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 23 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:19:45,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 70 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-23 14:19:45,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-23 14:19:45,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-11-23 14:19:45,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 63 states have (on average 1.0317460317460319) internal successors, (65), 64 states have internal predecessors, (65), 28 states have call successors, (28), 17 states have call predecessors, (28), 17 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-23 14:19:45,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 120 transitions. [2022-11-23 14:19:45,053 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 120 transitions. Word has length 75 [2022-11-23 14:19:45,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:19:45,054 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 120 transitions. [2022-11-23 14:19:45,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 13 states have internal predecessors, (25), 7 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2022-11-23 14:19:45,054 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 120 transitions. [2022-11-23 14:19:45,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-23 14:19:45,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:19:45,056 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2022-11-23 14:19:45,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:19:45,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:45,262 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:19:45,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:19:45,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1164571078, now seen corresponding path program 5 times [2022-11-23 14:19:45,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:19:45,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789628575] [2022-11-23 14:19:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:19:45,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:19:45,279 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:19:45,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842475268] [2022-11-23 14:19:45,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:19:45,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:19:45,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:19:45,288 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:19:45,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 14:19:45,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-23 14:19:45,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:19:45,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-23 14:19:45,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:19:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 215 proven. 26 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-23 14:19:46,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:19:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 170 proven. 6 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-23 14:19:50,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:19:50,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789628575] [2022-11-23 14:19:50,619 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:19:50,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842475268] [2022-11-23 14:19:50,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842475268] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:19:50,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1226141440] [2022-11-23 14:19:50,621 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-23 14:19:50,621 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:19:50,621 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:19:50,622 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:19:50,622 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:19:53,250 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2022-11-23 14:19:53,290 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:19:55,627 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4786#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 14:19:55,627 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:19:55,628 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:19:55,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2022-11-23 14:19:55,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346293665] [2022-11-23 14:19:55,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 14:19:55,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-23 14:19:55,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:19:55,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-23 14:19:55,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2022-11-23 14:19:55,630 INFO L87 Difference]: Start difference. First operand 109 states and 120 transitions. Second operand has 18 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 11 states have internal predecessors, (25), 11 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-23 14:19:59,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-23 14:20:00,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:20:00,220 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2022-11-23 14:20:00,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:20:00,221 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 11 states have internal predecessors, (25), 11 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) Word has length 97 [2022-11-23 14:20:00,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:20:00,222 INFO L225 Difference]: With dead ends: 115 [2022-11-23 14:20:00,223 INFO L226 Difference]: Without dead ends: 111 [2022-11-23 14:20:00,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 263 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=141, Invalid=789, Unknown=0, NotChecked=0, Total=930 [2022-11-23 14:20:00,224 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 25 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:20:00,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-23 14:20:00,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-23 14:20:00,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-11-23 14:20:00,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 28 states have call successors, (28), 18 states have call predecessors, (28), 17 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-23 14:20:00,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2022-11-23 14:20:00,294 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 97 [2022-11-23 14:20:00,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:20:00,295 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2022-11-23 14:20:00,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 11 states have internal predecessors, (25), 11 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2022-11-23 14:20:00,295 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2022-11-23 14:20:00,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-23 14:20:00,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:20:00,298 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:20:00,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 14:20:00,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 14:20:00,504 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:20:00,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:20:00,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2081330855, now seen corresponding path program 2 times [2022-11-23 14:20:00,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:20:00,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63154595] [2022-11-23 14:20:00,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:20:00,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:20:00,514 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:20:00,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1693433952] [2022-11-23 14:20:00,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:20:00,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:20:00,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:20:00,516 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:20:00,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 14:20:02,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-23 14:20:02,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:20:02,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-23 14:20:02,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:20:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 319 proven. 61 refuted. 0 times theorem prover too weak. 1148 trivial. 0 not checked. [2022-11-23 14:20:18,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:20:26,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 196 proven. 39 refuted. 0 times theorem prover too weak. 1293 trivial. 0 not checked. [2022-11-23 14:20:26,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:20:26,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63154595] [2022-11-23 14:20:26,643 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:20:26,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693433952] [2022-11-23 14:20:26,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693433952] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:20:26,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1960079739] [2022-11-23 14:20:26,645 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-23 14:20:26,646 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:20:26,646 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:20:26,646 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:20:26,646 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:20:29,884 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2022-11-23 14:20:29,887 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:20:34,673 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6042#(and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 14:20:34,673 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:20:34,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:20:34,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2022-11-23 14:20:34,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608900233] [2022-11-23 14:20:34,674 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 14:20:34,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 14:20:34,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:20:34,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 14:20:34,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=729, Unknown=1, NotChecked=0, Total=870 [2022-11-23 14:20:34,676 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand has 17 states, 15 states have (on average 1.8) internal successors, (27), 13 states have internal predecessors, (27), 9 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 9 states have call successors, (31) [2022-11-23 14:20:41,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-23 14:20:43,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-23 14:20:47,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-23 14:20:50,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-23 14:20:52,131 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 [] [2022-11-23 14:20:52,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:20:52,706 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2022-11-23 14:20:52,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:20:52,707 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 1.8) internal successors, (27), 13 states have internal predecessors, (27), 9 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 9 states have call successors, (31) Word has length 150 [2022-11-23 14:20:52,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:20:52,708 INFO L225 Difference]: With dead ends: 111 [2022-11-23 14:20:52,708 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:20:52,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 419 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 22.7s TimeCoverageRelationStatistics Valid=177, Invalid=943, Unknown=2, NotChecked=0, Total=1122 [2022-11-23 14:20:52,710 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 19 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 43 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:20:52,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 49 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 183 Invalid, 5 Unknown, 0 Unchecked, 13.1s Time] [2022-11-23 14:20:52,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:20:52,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:20:52,711 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) [2022-11-23 14:20:52,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:20:52,712 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2022-11-23 14:20:52,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:20:52,712 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:20:52,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 1.8) internal successors, (27), 13 states have internal predecessors, (27), 9 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 9 states have call successors, (31) [2022-11-23 14:20:52,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:20:52,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:20:52,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:20:52,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-23 14:20:52,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:20:52,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:21:10,603 WARN L233 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 207 DAG size of output: 113 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-23 14:21:21,953 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 205 DAG size of output: 110 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-23 14:21:34,336 WARN L233 SmtUtils]: Spent 8.64s on a formula simplification. DAG size of input: 207 DAG size of output: 113 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-23 14:21:34,341 INFO L895 garLoopResultBuilder]: At program point L33(line 33) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|))) (let ((.cse2 (= (+ (* 6 |ULTIMATE.start_main_~y~0#1|) (* (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~y~0#1|) 6)) (+ (* .cse0 36) 6 (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~n~0#1| 24))))) (or (and (= |ULTIMATE.start_main_~y~0#1| (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 .cse0) 1)) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (let ((.cse1 (- |ULTIMATE.start_main_~a~0#1|))) (or (and (<= 0 (+ 65536 |ULTIMATE.start_main_~a~0#1|)) (<= (+ (* 65536 (div (+ .cse1 (- 32769)) 65536)) |ULTIMATE.start_main_~a~0#1| 65537) 0) (< |ULTIMATE.start_main_~a~0#1| 0)) (and (< |ULTIMATE.start_main_~a~0#1| 65536) (<= (+ 32769 (* 65536 (div (+ .cse1 (- 1)) 65536)) |ULTIMATE.start_main_~a~0#1|) 0) (<= 0 |ULTIMATE.start_main_~a~0#1|)))) .cse2) (let ((.cse3 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 13 (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) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|))) (= (select .cse3 0) 48) (= |ULTIMATE.start_main_~x~0#1| 0) .cse2 (= (select .cse3 1) 0) (= 6 |ULTIMATE.start_main_~z~0#1|) (< 0 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_#t~nondet4#1_5| Int)) (= (let ((.cse4 (mod |v_ULTIMATE.start_main_#t~nondet4#1_5| 65536))) (ite (<= .cse4 32767) .cse4 (+ .cse4 (- 65536)))) |ULTIMATE.start_main_~a~0#1|)) (= |#NULL.base| 0)))))) [2022-11-23 14:21:34,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:21:34,341 INFO L895 garLoopResultBuilder]: At program point L33-1(line 33) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|))) (let ((.cse2 (= (+ (* 6 |ULTIMATE.start_main_~y~0#1|) (* (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~y~0#1|) 6)) (+ (* .cse0 36) 6 (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~n~0#1| 24))))) (or (and (= |ULTIMATE.start_main_~y~0#1| (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 .cse0) 1)) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (let ((.cse1 (- |ULTIMATE.start_main_~a~0#1|))) (or (and (<= 0 (+ 65536 |ULTIMATE.start_main_~a~0#1|)) (<= (+ (* 65536 (div (+ .cse1 (- 32769)) 65536)) |ULTIMATE.start_main_~a~0#1| 65537) 0) (< |ULTIMATE.start_main_~a~0#1| 0)) (and (< |ULTIMATE.start_main_~a~0#1| 65536) (<= (+ 32769 (* 65536 (div (+ .cse1 (- 1)) 65536)) |ULTIMATE.start_main_~a~0#1|) 0) (<= 0 |ULTIMATE.start_main_~a~0#1|)))) .cse2) (let ((.cse3 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 13 (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) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|))) (= (select .cse3 0) 48) (= |ULTIMATE.start_main_~x~0#1| 0) .cse2 (= (select .cse3 1) 0) (= 6 |ULTIMATE.start_main_~z~0#1|) (< 0 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_#t~nondet4#1_5| Int)) (= (let ((.cse4 (mod |v_ULTIMATE.start_main_#t~nondet4#1_5| 65536))) (ite (<= .cse4 32767) .cse4 (+ .cse4 (- 65536)))) |ULTIMATE.start_main_~a~0#1|)) (= |#NULL.base| 0)))))) [2022-11-23 14:21:34,342 INFO L902 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: true [2022-11-23 14:21:34,342 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~y~0#1| (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) 1))) (.cse1 (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))))) (or (and .cse0 (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~y~0#1| 24))) .cse1 (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|)))) (and .cse0 (= |ULTIMATE.start_main_~z~0#1| 12) .cse1 (= (+ 6 |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|))))) [2022-11-23 14:21:34,342 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (and (= |ULTIMATE.start_main_~y~0#1| (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) 1)) (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~y~0#1| 24))) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|)))) [2022-11-23 14:21:34,343 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse3 (* |ULTIMATE.start_main_~x~0#1| 18))) (let ((.cse1 (= (+ (* 6 |ULTIMATE.start_main_~y~0#1|) (* (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~y~0#1|) 6)) (+ (* (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 36) 6 .cse3 (* |ULTIMATE.start_main_~n~0#1| 24))))) (or (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 13 (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) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|))) (= (select .cse0 0) 48) (= |ULTIMATE.start_main_~x~0#1| 0) .cse1 (= (select .cse0 1) 0) (= 6 |ULTIMATE.start_main_~z~0#1|) (< 0 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_#t~nondet4#1_5| Int)) (= (let ((.cse2 (mod |v_ULTIMATE.start_main_#t~nondet4#1_5| 65536))) (ite (<= .cse2 32767) .cse2 (+ .cse2 (- 65536)))) |ULTIMATE.start_main_~a~0#1|)) (= |#NULL.base| 0))) (and (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) .cse3 (* |ULTIMATE.start_main_~y~0#1| 24))) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (let ((.cse4 (- |ULTIMATE.start_main_~a~0#1|))) (or (and (<= 0 (+ 65536 |ULTIMATE.start_main_~a~0#1|)) (<= (+ (* 65536 (div (+ .cse4 (- 32769)) 65536)) |ULTIMATE.start_main_~a~0#1| 65537) 0) (< |ULTIMATE.start_main_~a~0#1| 0)) (and (< |ULTIMATE.start_main_~a~0#1| 65536) (<= (+ 32769 (* 65536 (div (+ .cse4 (- 1)) 65536)) |ULTIMATE.start_main_~a~0#1|) 0) (<= 0 |ULTIMATE.start_main_~a~0#1|)))) .cse1)))) [2022-11-23 14:21:34,344 INFO L895 garLoopResultBuilder]: At program point L34(line 34) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|))) (let ((.cse2 (= (+ (* 6 |ULTIMATE.start_main_~y~0#1|) (* (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~y~0#1|) 6)) (+ (* .cse0 36) 6 (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~n~0#1| 24))))) (or (and (= |ULTIMATE.start_main_~y~0#1| (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 .cse0) 1)) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (let ((.cse1 (- |ULTIMATE.start_main_~a~0#1|))) (or (and (<= 0 (+ 65536 |ULTIMATE.start_main_~a~0#1|)) (<= (+ (* 65536 (div (+ .cse1 (- 32769)) 65536)) |ULTIMATE.start_main_~a~0#1| 65537) 0) (< |ULTIMATE.start_main_~a~0#1| 0)) (and (< |ULTIMATE.start_main_~a~0#1| 65536) (<= (+ 32769 (* 65536 (div (+ .cse1 (- 1)) 65536)) |ULTIMATE.start_main_~a~0#1|) 0) (<= 0 |ULTIMATE.start_main_~a~0#1|)))) .cse2) (let ((.cse3 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 13 (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) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|))) (= (select .cse3 0) 48) (= |ULTIMATE.start_main_~x~0#1| 0) .cse2 (= (select .cse3 1) 0) (= 6 |ULTIMATE.start_main_~z~0#1|) (< 0 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_#t~nondet4#1_5| Int)) (= (let ((.cse4 (mod |v_ULTIMATE.start_main_#t~nondet4#1_5| 65536))) (ite (<= .cse4 32767) .cse4 (+ .cse4 (- 65536)))) |ULTIMATE.start_main_~a~0#1|)) (= |#NULL.base| 0)))))) [2022-11-23 14:21:34,344 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 45) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|))) (let ((.cse2 (= (+ (* 6 |ULTIMATE.start_main_~y~0#1|) (* (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~y~0#1|) 6)) (+ (* .cse0 36) 6 (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~n~0#1| 24))))) (or (and (= |ULTIMATE.start_main_~y~0#1| (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 .cse0) 1)) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (let ((.cse1 (- |ULTIMATE.start_main_~a~0#1|))) (or (and (<= 0 (+ 65536 |ULTIMATE.start_main_~a~0#1|)) (<= (+ (* 65536 (div (+ .cse1 (- 32769)) 65536)) |ULTIMATE.start_main_~a~0#1| 65537) 0) (< |ULTIMATE.start_main_~a~0#1| 0)) (and (< |ULTIMATE.start_main_~a~0#1| 65536) (<= (+ 32769 (* 65536 (div (+ .cse1 (- 1)) 65536)) |ULTIMATE.start_main_~a~0#1|) 0) (<= 0 |ULTIMATE.start_main_~a~0#1|)))) .cse2) (let ((.cse3 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 13 (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) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|))) (= (select .cse3 0) 48) (= |ULTIMATE.start_main_~x~0#1| 0) .cse2 (= (select .cse3 1) 0) (= 6 |ULTIMATE.start_main_~z~0#1|) (< 0 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_#t~nondet4#1_5| Int)) (= (let ((.cse4 (mod |v_ULTIMATE.start_main_#t~nondet4#1_5| 65536))) (ite (<= .cse4 32767) .cse4 (+ .cse4 (- 65536)))) |ULTIMATE.start_main_~a~0#1|)) (= |#NULL.base| 0)))))) [2022-11-23 14:21:34,345 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:21:34,345 INFO L895 garLoopResultBuilder]: At program point L32-3(lines 32 45) the Hoare annotation is: (and (= |ULTIMATE.start_main_~y~0#1| (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) 1)) (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~y~0#1| 24))) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|)))) [2022-11-23 14:21:34,345 INFO L895 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~y~0#1| (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) 1))) (.cse1 (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))))) (or (and .cse0 (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~y~0#1| 24))) .cse1 (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|)))) (and .cse0 (= |ULTIMATE.start_main_~z~0#1| 12) .cse1 (= (+ 6 |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|))))) [2022-11-23 14:21:34,346 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (let ((.cse2 (* 3 |ULTIMATE.start_main_~n~0#1|)) (.cse3 (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)))) (let ((.cse0 (= |ULTIMATE.start_main_~y~0#1| (+ .cse2 .cse3 1))) (.cse1 (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))))) (or (and .cse0 (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~y~0#1| 24))) .cse1 (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|)))) (and .cse0 .cse1 (= |ULTIMATE.start_main_~n~0#1| 1) (= (+ .cse2 .cse3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 1) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))))) [2022-11-23 14:21:34,346 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (and (= |ULTIMATE.start_main_~y~0#1| (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) 1)) (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~y~0#1| 24))) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|)))) [2022-11-23 14:21:34,346 INFO L899 garLoopResultBuilder]: For program point L37(lines 32 45) no Hoare annotation was computed. [2022-11-23 14:21:34,346 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse3 (* |ULTIMATE.start_main_~x~0#1| 18))) (let ((.cse1 (= (+ (* 6 |ULTIMATE.start_main_~y~0#1|) (* (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~y~0#1|) 6)) (+ (* (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 36) 6 .cse3 (* |ULTIMATE.start_main_~n~0#1| 24))))) (or (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 13 (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) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|))) (= (select .cse0 0) 48) (= |ULTIMATE.start_main_~x~0#1| 0) .cse1 (= (select .cse0 1) 0) (= 6 |ULTIMATE.start_main_~z~0#1|) (< 0 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_#t~nondet4#1_5| Int)) (= (let ((.cse2 (mod |v_ULTIMATE.start_main_#t~nondet4#1_5| 65536))) (ite (<= .cse2 32767) .cse2 (+ .cse2 (- 65536)))) |ULTIMATE.start_main_~a~0#1|)) (= |#NULL.base| 0))) (and (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) .cse3 (* |ULTIMATE.start_main_~y~0#1| 24))) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (let ((.cse4 (- |ULTIMATE.start_main_~a~0#1|))) (or (and (<= 0 (+ 65536 |ULTIMATE.start_main_~a~0#1|)) (<= (+ (* 65536 (div (+ .cse4 (- 32769)) 65536)) |ULTIMATE.start_main_~a~0#1| 65537) 0) (< |ULTIMATE.start_main_~a~0#1| 0)) (and (< |ULTIMATE.start_main_~a~0#1| 65536) (<= (+ 32769 (* 65536 (div (+ .cse4 (- 1)) 65536)) |ULTIMATE.start_main_~a~0#1|) 0) (<= 0 |ULTIMATE.start_main_~a~0#1|)))) .cse1)))) [2022-11-23 14:21:34,346 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2022-11-23 14:21:34,346 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2022-11-23 14:21:34,347 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 20) the Hoare annotation is: true [2022-11-23 14:21:34,347 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2022-11-23 14:21:34,347 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2022-11-23 14:21:34,347 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-11-23 14:21:34,350 INFO L444 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1] [2022-11-23 14:21:34,352 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:21:34,360 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-23 14:21:34,361 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-23 14:21:34,361 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-23 14:21:34,376 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-23 14:21:34,377 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-23 14:21:34,377 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-23 14:21:34,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:21:34 BoogieIcfgContainer [2022-11-23 14:21:34,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:21:34,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:21:34,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:21:34,387 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:21:34,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:48" (3/4) ... [2022-11-23 14:21:34,391 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:21:34,396 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-23 14:21:34,400 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 14:21:34,400 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 14:21:34,400 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 14:21:34,400 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:21:34,424 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((y == 3 * n + 3 * (n * n) + 1 && z == 6 + 6 * n) && n <= a + 1) && (((0 <= 65536 + a && 65536 * ((-a + -32769) / 65536) + a + 65537 <= 0) && a < 0) || ((a < 65536 && 32769 + 65536 * ((-a + -1) / 65536) + a <= 0) && 0 <= a))) && 6 * y + n * y * 6 == n * n * 36 + 6 + x * 18 + n * 24) || ((((((((((((((((unknown-#length-unknown[3] == 12 && 13 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && 2 * y + 6 * a + 10 == a * z + 2 * z) && unknown-#memory_int-unknown[1][0] == 48) && x == 0) && 6 * y + n * y * 6 == n * n * 36 + 6 + x * 18 + n * 24) && unknown-#memory_int-unknown[1][1] == 0) && 6 == z) && 0 < unknown-#StackHeapBarrier-unknown) && (\exists v_ULTIMATE.start_main_#t~nondet4#1_5 : int :: (if v_ULTIMATE.start_main_#t~nondet4#1_5 % 65536 <= 32767 then v_ULTIMATE.start_main_#t~nondet4#1_5 % 65536 else v_ULTIMATE.start_main_#t~nondet4#1_5 % 65536 + -65536) == a)) && #NULL == 0) [2022-11-23 14:21:34,433 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:21:34,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:21:34,434 INFO L158 Benchmark]: Toolchain (without parser) took 166673.00ms. Allocated memory was 123.7MB in the beginning and 415.2MB in the end (delta: 291.5MB). Free memory was 84.5MB in the beginning and 202.9MB in the end (delta: -118.4MB). Peak memory consumption was 174.6MB. Max. memory is 16.1GB. [2022-11-23 14:21:34,434 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:21:34,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.01ms. Allocated memory is still 123.7MB. Free memory was 84.0MB in the beginning and 73.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:21:34,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.85ms. Allocated memory is still 123.7MB. Free memory was 73.5MB in the beginning and 71.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:21:34,435 INFO L158 Benchmark]: Boogie Preprocessor took 37.80ms. Allocated memory is still 123.7MB. Free memory was 71.7MB in the beginning and 70.7MB in the end (delta: 988.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:21:34,436 INFO L158 Benchmark]: RCFGBuilder took 438.64ms. Allocated memory is still 123.7MB. Free memory was 70.7MB in the beginning and 58.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 14:21:34,436 INFO L158 Benchmark]: TraceAbstraction took 165737.54ms. Allocated memory was 123.7MB in the beginning and 415.2MB in the end (delta: 291.5MB). Free memory was 57.8MB in the beginning and 205.0MB in the end (delta: -147.1MB). Peak memory consumption was 214.5MB. Max. memory is 16.1GB. [2022-11-23 14:21:34,436 INFO L158 Benchmark]: Witness Printer took 47.09ms. Allocated memory is still 415.2MB. Free memory was 205.0MB in the beginning and 202.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:21:34,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.01ms. Allocated memory is still 123.7MB. Free memory was 84.0MB in the beginning and 73.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.85ms. Allocated memory is still 123.7MB. Free memory was 73.5MB in the beginning and 71.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.80ms. Allocated memory is still 123.7MB. Free memory was 71.7MB in the beginning and 70.7MB in the end (delta: 988.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 438.64ms. Allocated memory is still 123.7MB. Free memory was 70.7MB in the beginning and 58.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 165737.54ms. Allocated memory was 123.7MB in the beginning and 415.2MB in the end (delta: 291.5MB). Free memory was 57.8MB in the beginning and 205.0MB in the end (delta: -147.1MB). Peak memory consumption was 214.5MB. Max. memory is 16.1GB. * Witness Printer took 47.09ms. Allocated memory is still 415.2MB. Free memory was 205.0MB in the beginning and 202.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 165.6s, OverallIterations: 11, TraceHistogramMax: 28, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 29.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 41.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 21.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 167 mSDsluCounter, 643 SdHoareTripleChecker+Invalid, 20.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 377 mSDsCounter, 415 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2500 IncrementalHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 415 mSolverCounterUnsat, 266 mSDtfsCounter, 2500 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1792 GetRequests, 1552 SyntacticMatches, 7 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1621 ImplicationChecksByTransitivity, 53.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=10, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 76 PreInvPairs, 134 NumberOfFragments, 1728 HoareAnnotationTreeSize, 76 FomulaSimplifications, 285 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 14 FomulaSimplificationsInter, 14427 FormulaSimplificationTreeSizeReductionInter, 41.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 33.8s InterpolantComputationTime, 607 NumberOfCodeBlocks, 431 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1135 ConstructedInterpolants, 0 QuantifiedInterpolants, 7963 SizeOfPredicates, 43 NumberOfNonLiveVariables, 1130 ConjunctsInSsa, 265 ConjunctsInUnsatCore, 19 InterpolantComputations, 2 PerfectInterpolantSequences, 6104/6567 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 9, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME: 0.0s, TOOLS_POST_CALL_APPLICATIONS: 4, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 15, TOOLS_QUANTIFIERELIM_TIME: 0.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 25, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 9, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, 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: 48, DAG_COMPRESSION_RETAINED_NODES: 29, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant [2022-11-23 14:21:34,448 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-23 14:21:34,448 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-23 14:21:34,448 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-23 14:21:34,449 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-23 14:21:34,450 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] [2022-11-23 14:21:34,450 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_5,QUANTIFIED] Derived loop invariant: ((((y == 3 * n + 3 * (n * n) + 1 && z == 6 + 6 * n) && n <= a + 1) && (((0 <= 65536 + a && 65536 * ((-a + -32769) / 65536) + a + 65537 <= 0) && a < 0) || ((a < 65536 && 32769 + 65536 * ((-a + -1) / 65536) + a <= 0) && 0 <= a))) && 6 * y + n * y * 6 == n * n * 36 + 6 + x * 18 + n * 24) || ((((((((((((((((unknown-#length-unknown[3] == 12 && 13 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && 2 * y + 6 * a + 10 == a * z + 2 * z) && unknown-#memory_int-unknown[1][0] == 48) && x == 0) && 6 * y + n * y * 6 == n * n * 36 + 6 + x * 18 + n * 24) && unknown-#memory_int-unknown[1][1] == 0) && 6 == z) && 0 < unknown-#StackHeapBarrier-unknown) && (\exists v_ULTIMATE.start_main_#t~nondet4#1_5 : int :: (if v_ULTIMATE.start_main_#t~nondet4#1_5 % 65536 <= 32767 then v_ULTIMATE.start_main_#t~nondet4#1_5 % 65536 else v_ULTIMATE.start_main_#t~nondet4#1_5 % 65536 + -65536) == a)) && #NULL == 0) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 14:21:34,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b43278-11fc-419e-a33d-955b16565ed0/bin/utaipan-Q6hlc19bkW/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