./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec105877a5c5817dc7d6d5e780267dcadb379ad27281f7d8981115c8613ba085 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:52:13,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:52:13,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:52:13,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:52:13,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:52:13,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:52:13,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:52:13,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:52:13,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:52:13,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:52:13,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:52:13,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:52:13,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:52:13,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:52:13,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:52:13,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:52:13,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:52:13,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:52:13,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:52:13,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:52:13,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:52:13,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:52:13,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:52:13,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:52:13,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:52:13,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:52:13,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:52:13,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:52:13,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:52:13,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:52:13,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:52:13,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:52:13,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:52:13,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:52:13,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:52:13,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:52:13,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:52:13,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:52:13,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:52:13,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:52:13,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:52:13,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 15:52:14,014 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:52:14,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:52:14,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:52:14,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:52:14,016 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:52:14,017 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:52:14,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:52:14,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:52:14,018 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:52:14,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:52:14,019 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:52:14,019 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:52:14,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:52:14,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:52:14,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:52:14,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:52:14,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:52:14,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:52:14,021 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:52:14,021 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:52:14,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:52:14,022 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:52:14,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:52:14,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:52:14,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:52:14,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:52:14,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:52:14,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:52:14,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:52:14,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:52:14,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:52:14,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:52:14,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:52:14,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:52:14,025 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:52:14,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:52:14,026 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec105877a5c5817dc7d6d5e780267dcadb379ad27281f7d8981115c8613ba085 [2022-11-25 15:52:14,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:52:14,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:52:14,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:52:14,343 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:52:14,343 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:52:14,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i [2022-11-25 15:52:17,667 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:52:18,042 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:52:18,044 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i [2022-11-25 15:52:18,069 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/data/39b306a91/4eb56e4e467a4e4b92780bcf68ce64cf/FLAGb5249e9a0 [2022-11-25 15:52:18,094 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/data/39b306a91/4eb56e4e467a4e4b92780bcf68ce64cf [2022-11-25 15:52:18,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:52:18,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:52:18,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:52:18,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:52:18,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:52:18,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:52:18" (1/1) ... [2022-11-25 15:52:18,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@143fe845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:18, skipping insertion in model container [2022-11-25 15:52:18,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:52:18" (1/1) ... [2022-11-25 15:52:18,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:52:18,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:52:18,782 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_d408d02b-c7a4-463f-941f-d882d8de3e35/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i[33021,33034] [2022-11-25 15:52:18,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:52:18,936 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:52:18,971 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_d408d02b-c7a4-463f-941f-d882d8de3e35/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i[33021,33034] [2022-11-25 15:52:19,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:52:19,086 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:52:19,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19 WrapperNode [2022-11-25 15:52:19,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:52:19,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:52:19,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:52:19,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:52:19,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (1/1) ... [2022-11-25 15:52:19,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (1/1) ... [2022-11-25 15:52:19,182 INFO L138 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 623 [2022-11-25 15:52:19,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:52:19,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:52:19,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:52:19,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:52:19,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (1/1) ... [2022-11-25 15:52:19,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (1/1) ... [2022-11-25 15:52:19,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (1/1) ... [2022-11-25 15:52:19,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (1/1) ... [2022-11-25 15:52:19,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (1/1) ... [2022-11-25 15:52:19,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (1/1) ... [2022-11-25 15:52:19,248 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (1/1) ... [2022-11-25 15:52:19,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (1/1) ... [2022-11-25 15:52:19,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:52:19,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:52:19,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:52:19,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:52:19,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (1/1) ... [2022-11-25 15:52:19,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:52:19,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:19,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:52:19,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:52:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:52:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 15:52:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 15:52:19,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:52:19,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 15:52:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 15:52:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 15:52:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:52:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:52:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 15:52:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 15:52:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:52:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:52:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:52:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:52:19,654 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:52:19,656 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:52:20,956 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:52:20,964 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:52:20,964 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2022-11-25 15:52:20,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:52:20 BoogieIcfgContainer [2022-11-25 15:52:20,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:52:20,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:52:20,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:52:20,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:52:20,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:52:18" (1/3) ... [2022-11-25 15:52:20,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7143ac1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:52:20, skipping insertion in model container [2022-11-25 15:52:20,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:52:19" (2/3) ... [2022-11-25 15:52:20,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7143ac1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:52:20, skipping insertion in model container [2022-11-25 15:52:20,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:52:20" (3/3) ... [2022-11-25 15:52:20,977 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test1-1.i [2022-11-25 15:52:21,000 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:52:21,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 15:52:21,084 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:52:21,093 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=PETRI_NET, 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;@185a91bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:52:21,094 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 15:52:21,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 130 states have internal predecessors, (192), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 15:52:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 15:52:21,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:21,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 15:52:21,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:21,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:21,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1126628338, now seen corresponding path program 1 times [2022-11-25 15:52:21,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:21,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623349576] [2022-11-25 15:52:21,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:21,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:21,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:21,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:21,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623349576] [2022-11-25 15:52:21,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623349576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:21,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:21,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:52:21,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958483015] [2022-11-25 15:52:21,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:21,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:52:21,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:21,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:52:21,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:52:21,453 INFO L87 Difference]: Start difference. First operand has 136 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 130 states have internal predecessors, (192), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:21,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:21,557 INFO L93 Difference]: Finished difference Result 360 states and 598 transitions. [2022-11-25 15:52:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:52:21,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-11-25 15:52:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:21,582 INFO L225 Difference]: With dead ends: 360 [2022-11-25 15:52:21,583 INFO L226 Difference]: Without dead ends: 222 [2022-11-25 15:52:21,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:52:21,597 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 110 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:21,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 351 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:52:21,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-25 15:52:21,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 136. [2022-11-25 15:52:21,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 130 states have internal predecessors, (156), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 15:52:21,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2022-11-25 15:52:21,667 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 6 [2022-11-25 15:52:21,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:21,668 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2022-11-25 15:52:21,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:21,668 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2022-11-25 15:52:21,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 15:52:21,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:21,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:21,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:52:21,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:21,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:21,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1053673023, now seen corresponding path program 1 times [2022-11-25 15:52:21,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:21,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362152938] [2022-11-25 15:52:21,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:21,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:21,885 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:21,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951861392] [2022-11-25 15:52:21,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:21,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:21,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:21,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:21,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:52:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:22,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:52:22,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:22,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:22,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:52:22,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:22,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362152938] [2022-11-25 15:52:22,785 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:22,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951861392] [2022-11-25 15:52:22,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951861392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:22,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:22,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:52:22,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831745536] [2022-11-25 15:52:22,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:22,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:52:22,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:22,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:52:22,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:52:22,790 INFO L87 Difference]: Start difference. First operand 136 states and 182 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:22,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:22,996 INFO L93 Difference]: Finished difference Result 286 states and 388 transitions. [2022-11-25 15:52:22,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:52:22,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) Word has length 56 [2022-11-25 15:52:22,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:23,006 INFO L225 Difference]: With dead ends: 286 [2022-11-25 15:52:23,006 INFO L226 Difference]: Without dead ends: 157 [2022-11-25 15:52:23,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:52:23,009 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 9 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:23,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 299 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:52:23,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-25 15:52:23,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2022-11-25 15:52:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 136 states have (on average 1.2941176470588236) internal successors, (176), 150 states have internal predecessors, (176), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 15:52:23,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 202 transitions. [2022-11-25 15:52:23,037 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 202 transitions. Word has length 56 [2022-11-25 15:52:23,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:23,038 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 202 transitions. [2022-11-25 15:52:23,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:23,038 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 202 transitions. [2022-11-25 15:52:23,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 15:52:23,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:23,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:23,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 15:52:23,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:23,259 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:23,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:23,259 INFO L85 PathProgramCache]: Analyzing trace with hash 778913409, now seen corresponding path program 1 times [2022-11-25 15:52:23,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:23,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536205842] [2022-11-25 15:52:23,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:23,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:23,417 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:23,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576126010] [2022-11-25 15:52:23,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:23,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:23,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:23,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:23,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:52:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:52:24,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:24,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:24,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:52:24,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:24,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536205842] [2022-11-25 15:52:24,336 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:24,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576126010] [2022-11-25 15:52:24,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576126010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:24,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:24,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:52:24,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635179123] [2022-11-25 15:52:24,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:24,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:52:24,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:24,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:52:24,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:52:24,341 INFO L87 Difference]: Start difference. First operand 156 states and 202 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:24,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:24,453 INFO L93 Difference]: Finished difference Result 295 states and 387 transitions. [2022-11-25 15:52:24,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:52:24,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) Word has length 56 [2022-11-25 15:52:24,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:24,456 INFO L225 Difference]: With dead ends: 295 [2022-11-25 15:52:24,456 INFO L226 Difference]: Without dead ends: 146 [2022-11-25 15:52:24,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:52:24,458 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 139 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:24,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 333 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:52:24,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-25 15:52:24,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 142. [2022-11-25 15:52:24,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.2704918032786885) internal successors, (155), 136 states have internal predecessors, (155), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 15:52:24,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 181 transitions. [2022-11-25 15:52:24,474 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 181 transitions. Word has length 56 [2022-11-25 15:52:24,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:24,475 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 181 transitions. [2022-11-25 15:52:24,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:24,475 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 181 transitions. [2022-11-25 15:52:24,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 15:52:24,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:24,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:24,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:24,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:24,692 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:24,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:24,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1492117709, now seen corresponding path program 1 times [2022-11-25 15:52:24,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:24,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383898319] [2022-11-25 15:52:24,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:24,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:24,875 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:24,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385070102] [2022-11-25 15:52:24,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:24,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:24,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:24,879 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:24,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:52:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:25,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:52:25,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:25,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:52:25,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:25,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383898319] [2022-11-25 15:52:25,961 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:25,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385070102] [2022-11-25 15:52:25,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385070102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:25,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:25,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:52:25,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562780990] [2022-11-25 15:52:25,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:25,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:52:25,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:25,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:52:25,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:52:25,967 INFO L87 Difference]: Start difference. First operand 142 states and 181 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:26,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:26,013 INFO L93 Difference]: Finished difference Result 142 states and 181 transitions. [2022-11-25 15:52:26,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:52:26,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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) Word has length 56 [2022-11-25 15:52:26,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:26,019 INFO L225 Difference]: With dead ends: 142 [2022-11-25 15:52:26,020 INFO L226 Difference]: Without dead ends: 141 [2022-11-25 15:52:26,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:52:26,026 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 83 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:26,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 338 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:52:26,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-25 15:52:26,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2022-11-25 15:52:26,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 122 states have (on average 1.2622950819672132) internal successors, (154), 135 states have internal predecessors, (154), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 15:52:26,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 180 transitions. [2022-11-25 15:52:26,056 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 180 transitions. Word has length 56 [2022-11-25 15:52:26,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:26,058 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 180 transitions. [2022-11-25 15:52:26,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:26,059 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 180 transitions. [2022-11-25 15:52:26,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 15:52:26,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:26,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:26,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:26,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:26,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:26,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:26,276 INFO L85 PathProgramCache]: Analyzing trace with hash 988991685, now seen corresponding path program 1 times [2022-11-25 15:52:26,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:26,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674507814] [2022-11-25 15:52:26,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:26,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:26,452 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:26,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312123524] [2022-11-25 15:52:26,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:26,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:26,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:26,467 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:26,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:52:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:27,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:52:27,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:27,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:27,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:52:27,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:27,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674507814] [2022-11-25 15:52:27,535 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:27,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312123524] [2022-11-25 15:52:27,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312123524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:27,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:27,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:52:27,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602895877] [2022-11-25 15:52:27,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:27,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:52:27,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:27,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:52:27,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:52:27,538 INFO L87 Difference]: Start difference. First operand 141 states and 180 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:27,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:27,587 INFO L93 Difference]: Finished difference Result 232 states and 290 transitions. [2022-11-25 15:52:27,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:52:27,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) Word has length 57 [2022-11-25 15:52:27,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:27,590 INFO L225 Difference]: With dead ends: 232 [2022-11-25 15:52:27,590 INFO L226 Difference]: Without dead ends: 231 [2022-11-25 15:52:27,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:52:27,591 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 49 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:27,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 540 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:52:27,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-25 15:52:27,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-11-25 15:52:27,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 209 states have (on average 1.229665071770335) internal successors, (257), 222 states have internal predecessors, (257), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 15:52:27,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 289 transitions. [2022-11-25 15:52:27,608 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 289 transitions. Word has length 57 [2022-11-25 15:52:27,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:27,609 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 289 transitions. [2022-11-25 15:52:27,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:27,609 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 289 transitions. [2022-11-25 15:52:27,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 15:52:27,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:27,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:27,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:27,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:27,822 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:27,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:27,822 INFO L85 PathProgramCache]: Analyzing trace with hash -268562827, now seen corresponding path program 1 times [2022-11-25 15:52:27,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:27,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365758443] [2022-11-25 15:52:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:27,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:27,993 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:27,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433962577] [2022-11-25 15:52:27,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:27,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:27,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:27,996 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:28,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:52:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:29,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:52:29,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:29,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:29,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:52:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:29,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:29,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365758443] [2022-11-25 15:52:29,543 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:29,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433962577] [2022-11-25 15:52:29,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433962577] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:52:29,543 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:52:29,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 15:52:29,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672910355] [2022-11-25 15:52:29,544 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:52:29,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:52:29,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:29,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:52:29,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:52:29,549 INFO L87 Difference]: Start difference. First operand 231 states and 289 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:29,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:29,700 INFO L93 Difference]: Finished difference Result 361 states and 460 transitions. [2022-11-25 15:52:29,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:52:29,700 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 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) Word has length 61 [2022-11-25 15:52:29,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:29,705 INFO L225 Difference]: With dead ends: 361 [2022-11-25 15:52:29,705 INFO L226 Difference]: Without dead ends: 327 [2022-11-25 15:52:29,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:52:29,707 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 351 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:29,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 809 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:52:29,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-25 15:52:29,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2022-11-25 15:52:29,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 302 states have (on average 1.2152317880794703) internal successors, (367), 315 states have internal predecessors, (367), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:52:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 405 transitions. [2022-11-25 15:52:29,762 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 405 transitions. Word has length 61 [2022-11-25 15:52:29,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:29,763 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 405 transitions. [2022-11-25 15:52:29,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:29,763 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 405 transitions. [2022-11-25 15:52:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 15:52:29,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:29,768 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:29,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:29,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:29,971 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:29,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash 255277007, now seen corresponding path program 1 times [2022-11-25 15:52:29,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:29,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447663907] [2022-11-25 15:52:29,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:29,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:30,092 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:30,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960244179] [2022-11-25 15:52:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:30,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:30,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:30,101 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:30,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 15:52:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:31,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:52:31,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:31,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:31,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:52:31,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:31,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447663907] [2022-11-25 15:52:31,424 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:31,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960244179] [2022-11-25 15:52:31,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960244179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:31,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:31,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:52:31,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431536975] [2022-11-25 15:52:31,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:31,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:52:31,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:31,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:52:31,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:52:31,427 INFO L87 Difference]: Start difference. First operand 327 states and 405 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:31,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:31,499 INFO L93 Difference]: Finished difference Result 594 states and 742 transitions. [2022-11-25 15:52:31,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:52:31,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) Word has length 62 [2022-11-25 15:52:31,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:31,502 INFO L225 Difference]: With dead ends: 594 [2022-11-25 15:52:31,502 INFO L226 Difference]: Without dead ends: 325 [2022-11-25 15:52:31,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:52:31,504 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 15 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:31,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 320 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:52:31,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-11-25 15:52:31,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-11-25 15:52:31,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 300 states have (on average 1.2133333333333334) internal successors, (364), 313 states have internal predecessors, (364), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:52:31,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 402 transitions. [2022-11-25 15:52:31,522 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 402 transitions. Word has length 62 [2022-11-25 15:52:31,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:31,522 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 402 transitions. [2022-11-25 15:52:31,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:31,523 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 402 transitions. [2022-11-25 15:52:31,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 15:52:31,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:31,524 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:31,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:31,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:31,743 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:31,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:31,743 INFO L85 PathProgramCache]: Analyzing trace with hash -475087376, now seen corresponding path program 1 times [2022-11-25 15:52:31,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:31,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528698092] [2022-11-25 15:52:31,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:31,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:31,800 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:31,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417535718] [2022-11-25 15:52:31,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:31,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:31,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:31,803 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:31,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 15:52:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:35,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:52:35,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:52:35,096 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:35,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:52:35,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:35,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528698092] [2022-11-25 15:52:35,097 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:52:35,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417535718] [2022-11-25 15:52:35,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417535718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:35,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:35,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:52:35,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330074062] [2022-11-25 15:52:35,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:35,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:52:35,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:35,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:52:35,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:52:35,102 INFO L87 Difference]: Start difference. First operand 325 states and 402 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 15:52:35,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:35,165 INFO L93 Difference]: Finished difference Result 601 states and 758 transitions. [2022-11-25 15:52:35,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:52:35,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2022-11-25 15:52:35,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:35,168 INFO L225 Difference]: With dead ends: 601 [2022-11-25 15:52:35,169 INFO L226 Difference]: Without dead ends: 328 [2022-11-25 15:52:35,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:52:35,170 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 2 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:35,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 494 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:52:35,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-11-25 15:52:35,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-11-25 15:52:35,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 302 states have (on average 1.2152317880794703) internal successors, (367), 316 states have internal predecessors, (367), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-25 15:52:35,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 408 transitions. [2022-11-25 15:52:35,190 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 408 transitions. Word has length 77 [2022-11-25 15:52:35,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:35,190 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 408 transitions. [2022-11-25 15:52:35,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 15:52:35,191 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 408 transitions. [2022-11-25 15:52:35,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 15:52:35,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:35,193 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:35,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 15:52:35,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 15:52:35,399 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:52:35,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:35,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1644071890, now seen corresponding path program 1 times [2022-11-25 15:52:35,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:35,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692746653] [2022-11-25 15:52:35,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:35,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:35,480 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:52:35,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313949064] [2022-11-25 15:52:35,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:35,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:52:35,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:52:35,483 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:52:35,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 15:53:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:53:16,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:53:16,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:53:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 15:53:16,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:53:16,669 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 15:53:16,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:53:16,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692746653] [2022-11-25 15:53:16,670 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:53:16,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313949064] [2022-11-25 15:53:16,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313949064] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:53:16,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:53:16,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 15:53:16,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950867311] [2022-11-25 15:53:16,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:53:16,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:53:16,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:53:16,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:53:16,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:53:16,673 INFO L87 Difference]: Start difference. First operand 328 states and 408 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:53:16,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:53:16,862 INFO L93 Difference]: Finished difference Result 615 states and 785 transitions. [2022-11-25 15:53:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:53:16,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79 [2022-11-25 15:53:16,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:53:16,865 INFO L225 Difference]: With dead ends: 615 [2022-11-25 15:53:16,866 INFO L226 Difference]: Without dead ends: 339 [2022-11-25 15:53:16,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:53:16,868 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 8 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:53:16,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 820 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:53:16,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-25 15:53:16,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2022-11-25 15:53:16,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 310 states have (on average 1.229032258064516) internal successors, (381), 324 states have internal predecessors, (381), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-25 15:53:16,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 422 transitions. [2022-11-25 15:53:16,916 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 422 transitions. Word has length 79 [2022-11-25 15:53:16,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:53:16,916 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 422 transitions. [2022-11-25 15:53:16,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:53:16,917 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 422 transitions. [2022-11-25 15:53:16,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 15:53:16,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:53:16,917 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:53:16,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 15:53:17,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:17,118 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:53:17,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:17,119 INFO L85 PathProgramCache]: Analyzing trace with hash 230004592, now seen corresponding path program 2 times [2022-11-25 15:53:17,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:17,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017762956] [2022-11-25 15:53:17,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:17,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:53:17,190 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:53:17,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1037303165] [2022-11-25 15:53:17,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:53:17,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:17,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:53:17,193 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:53:17,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 15:53:18,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:53:18,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:53:18,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 15:53:18,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:53:18,981 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 15:53:18,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:53:19,238 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 15:53:19,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:53:19,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017762956] [2022-11-25 15:53:19,239 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:53:19,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037303165] [2022-11-25 15:53:19,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037303165] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:53:19,239 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:53:19,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 15 [2022-11-25 15:53:19,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379991120] [2022-11-25 15:53:19,240 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:53:19,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 15:53:19,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:53:19,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 15:53:19,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-25 15:53:19,241 INFO L87 Difference]: Start difference. First operand 337 states and 422 transitions. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 15:53:19,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:53:19,827 INFO L93 Difference]: Finished difference Result 674 states and 875 transitions. [2022-11-25 15:53:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 15:53:19,829 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 83 [2022-11-25 15:53:19,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:53:19,832 INFO L225 Difference]: With dead ends: 674 [2022-11-25 15:53:19,832 INFO L226 Difference]: Without dead ends: 343 [2022-11-25 15:53:19,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2022-11-25 15:53:19,835 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 156 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:53:19,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 677 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 15:53:19,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-11-25 15:53:19,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 334. [2022-11-25 15:53:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 307 states have (on average 1.228013029315961) internal successors, (377), 321 states have internal predecessors, (377), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-25 15:53:19,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 418 transitions. [2022-11-25 15:53:19,862 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 418 transitions. Word has length 83 [2022-11-25 15:53:19,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:53:19,863 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 418 transitions. [2022-11-25 15:53:19,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 15:53:19,863 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 418 transitions. [2022-11-25 15:53:19,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-25 15:53:19,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:53:19,865 INFO L195 NwaCegarLoop]: trace histogram [12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:53:19,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 15:53:20,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 15:53:20,078 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:53:20,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:20,079 INFO L85 PathProgramCache]: Analyzing trace with hash -52287120, now seen corresponding path program 3 times [2022-11-25 15:53:20,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:20,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062011626] [2022-11-25 15:53:20,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:20,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:53:20,172 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:53:20,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [657220082] [2022-11-25 15:53:20,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 15:53:20,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:20,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:53:20,181 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:53:20,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 15:53:32,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 15:53:32,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:53:32,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-25 15:53:32,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:53:32,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 15:53:32,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 15:53:32,923 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:53:32,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:53:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:53:33,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:53:33,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062011626] [2022-11-25 15:53:33,556 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:53:33,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657220082] [2022-11-25 15:53:33,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657220082] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 15:53:33,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:53:33,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-11-25 15:53:33,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435576557] [2022-11-25 15:53:33,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:53:33,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:53:33,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:53:33,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:53:33,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:53:33,560 INFO L87 Difference]: Start difference. First operand 334 states and 418 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:53:33,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:53:33,690 INFO L93 Difference]: Finished difference Result 334 states and 418 transitions. [2022-11-25 15:53:33,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:53:33,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 89 [2022-11-25 15:53:33,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:53:33,694 INFO L225 Difference]: With dead ends: 334 [2022-11-25 15:53:33,694 INFO L226 Difference]: Without dead ends: 333 [2022-11-25 15:53:33,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:53:33,696 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 290 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:53:33,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 359 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:53:33,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-11-25 15:53:33,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-11-25 15:53:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 307 states have (on average 1.221498371335505) internal successors, (375), 320 states have internal predecessors, (375), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-25 15:53:33,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 416 transitions. [2022-11-25 15:53:33,724 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 416 transitions. Word has length 89 [2022-11-25 15:53:33,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:53:33,725 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 416 transitions. [2022-11-25 15:53:33,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:53:33,725 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 416 transitions. [2022-11-25 15:53:33,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-25 15:53:33,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:53:33,730 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:53:33,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 15:53:33,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 15:53:33,947 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:53:33,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:33,948 INFO L85 PathProgramCache]: Analyzing trace with hash 817185700, now seen corresponding path program 1 times [2022-11-25 15:53:33,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:33,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505225317] [2022-11-25 15:53:33,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:33,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:53:34,295 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:53:34,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858623627] [2022-11-25 15:53:34,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:34,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:34,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:53:34,298 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:53:34,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 15:53:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:53:36,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 3781 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:53:36,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:53:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:53:36,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:53:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:53:37,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:53:37,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505225317] [2022-11-25 15:53:37,322 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:53:37,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858623627] [2022-11-25 15:53:37,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858623627] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:53:37,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:53:37,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-25 15:53:37,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328094544] [2022-11-25 15:53:37,324 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:53:37,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 15:53:37,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:53:37,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 15:53:37,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:53:37,327 INFO L87 Difference]: Start difference. First operand 333 states and 416 transitions. Second operand has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:53:37,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:53:37,573 INFO L93 Difference]: Finished difference Result 454 states and 578 transitions. [2022-11-25 15:53:37,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:53:37,574 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 194 [2022-11-25 15:53:37,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:53:37,577 INFO L225 Difference]: With dead ends: 454 [2022-11-25 15:53:37,578 INFO L226 Difference]: Without dead ends: 453 [2022-11-25 15:53:37,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-11-25 15:53:37,579 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 427 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:53:37,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1005 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:53:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-11-25 15:53:37,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 332. [2022-11-25 15:53:37,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 307 states have (on average 1.218241042345277) internal successors, (374), 319 states have internal predecessors, (374), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-25 15:53:37,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 415 transitions. [2022-11-25 15:53:37,611 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 415 transitions. Word has length 194 [2022-11-25 15:53:37,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:53:37,611 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 415 transitions. [2022-11-25 15:53:37,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 26.692307692307693) internal successors, (347), 14 states have internal predecessors, (347), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:53:37,612 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 415 transitions. [2022-11-25 15:53:37,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-25 15:53:37,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:53:37,616 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:53:37,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 15:53:37,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:37,839 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:53:37,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash -2021787180, now seen corresponding path program 1 times [2022-11-25 15:53:37,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:37,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649994728] [2022-11-25 15:53:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:37,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:53:38,247 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:53:38,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573200223] [2022-11-25 15:53:38,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:38,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:38,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:53:38,250 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:53:38,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 15:53:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:53:40,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 3804 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:53:40,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:53:41,197 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:53:41,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:53:41,632 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:53:41,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:53:41,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649994728] [2022-11-25 15:53:41,632 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:53:41,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573200223] [2022-11-25 15:53:41,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573200223] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:53:41,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:53:41,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-25 15:53:41,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676870391] [2022-11-25 15:53:41,633 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:53:41,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 15:53:41,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:53:41,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 15:53:41,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:53:41,636 INFO L87 Difference]: Start difference. First operand 332 states and 415 transitions. Second operand has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:53:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:53:41,946 INFO L93 Difference]: Finished difference Result 733 states and 915 transitions. [2022-11-25 15:53:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 15:53:41,947 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 198 [2022-11-25 15:53:41,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:53:41,953 INFO L225 Difference]: With dead ends: 733 [2022-11-25 15:53:41,954 INFO L226 Difference]: Without dead ends: 700 [2022-11-25 15:53:41,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-11-25 15:53:41,956 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 530 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:53:41,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1523 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:53:41,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-11-25 15:53:42,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2022-11-25 15:53:42,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 663 states have (on average 1.191553544494721) internal successors, (790), 675 states have internal predecessors, (790), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-11-25 15:53:42,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 859 transitions. [2022-11-25 15:53:42,014 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 859 transitions. Word has length 198 [2022-11-25 15:53:42,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:53:42,014 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 859 transitions. [2022-11-25 15:53:42,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 16 states have internal predecessors, (352), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:53:42,015 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 859 transitions. [2022-11-25 15:53:42,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-25 15:53:42,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:53:42,026 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:53:42,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 15:53:42,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:42,239 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:53:42,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:42,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1398619156, now seen corresponding path program 2 times [2022-11-25 15:53:42,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:42,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902078092] [2022-11-25 15:53:42,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:42,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:53:42,991 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:53:42,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [593458335] [2022-11-25 15:53:42,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:53:42,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:42,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:53:42,999 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:53:43,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 15:53:46,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 15:53:46,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:53:46,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:53:46,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:53:46,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1244 trivial. 0 not checked. [2022-11-25 15:53:46,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:53:46,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:53:46,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902078092] [2022-11-25 15:53:46,892 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:53:46,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593458335] [2022-11-25 15:53:46,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593458335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:53:46,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:53:46,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:53:46,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556611855] [2022-11-25 15:53:46,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:53:46,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:53:46,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:53:46,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:53:46,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:53:46,895 INFO L87 Difference]: Start difference. First operand 700 states and 859 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:53:47,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:53:47,009 INFO L93 Difference]: Finished difference Result 700 states and 859 transitions. [2022-11-25 15:53:47,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:53:47,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 418 [2022-11-25 15:53:47,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:53:47,017 INFO L225 Difference]: With dead ends: 700 [2022-11-25 15:53:47,018 INFO L226 Difference]: Without dead ends: 699 [2022-11-25 15:53:47,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:53:47,020 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 99 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:53:47,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 266 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:53:47,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-11-25 15:53:47,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2022-11-25 15:53:47,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 663 states have (on average 1.1900452488687783) internal successors, (789), 674 states have internal predecessors, (789), 31 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (38), 22 states have call predecessors, (38), 31 states have call successors, (38) [2022-11-25 15:53:47,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 858 transitions. [2022-11-25 15:53:47,153 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 858 transitions. Word has length 418 [2022-11-25 15:53:47,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:53:47,154 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 858 transitions. [2022-11-25 15:53:47,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:53:47,155 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 858 transitions. [2022-11-25 15:53:47,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-11-25 15:53:47,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:53:47,168 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:53:47,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 15:53:47,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:47,388 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:53:47,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:47,389 INFO L85 PathProgramCache]: Analyzing trace with hash 407521300, now seen corresponding path program 1 times [2022-11-25 15:53:47,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:47,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528282275] [2022-11-25 15:53:47,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:47,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:53:48,300 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:53:48,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426856573] [2022-11-25 15:53:48,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:48,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:48,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:53:48,303 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:53:48,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 15:53:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:53:54,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 9721 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 15:53:54,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:53:55,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:53:55,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:53:56,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 0 proven. 1150 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-25 15:53:56,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:53:56,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528282275] [2022-11-25 15:53:56,519 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:53:56,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426856573] [2022-11-25 15:53:56,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426856573] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:53:56,520 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:53:56,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 21 [2022-11-25 15:53:56,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068583049] [2022-11-25 15:53:56,521 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:53:56,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-25 15:53:56,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:53:56,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-25 15:53:56,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-11-25 15:53:56,526 INFO L87 Difference]: Start difference. First operand 699 states and 858 transitions. Second operand has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:53:57,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:53:57,023 INFO L93 Difference]: Finished difference Result 1007 states and 1245 transitions. [2022-11-25 15:53:57,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 15:53:57,025 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 419 [2022-11-25 15:53:57,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:53:57,030 INFO L225 Difference]: With dead ends: 1007 [2022-11-25 15:53:57,031 INFO L226 Difference]: Without dead ends: 975 [2022-11-25 15:53:57,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 806 SyntacticMatches, 11 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=273, Invalid=597, Unknown=0, NotChecked=0, Total=870 [2022-11-25 15:53:57,035 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 744 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:53:57,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 2153 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:53:57,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-11-25 15:53:57,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2022-11-25 15:53:57,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 930 states have (on average 1.1838709677419355) internal successors, (1101), 941 states have internal predecessors, (1101), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-11-25 15:53:57,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1191 transitions. [2022-11-25 15:53:57,126 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1191 transitions. Word has length 419 [2022-11-25 15:53:57,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:53:57,127 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1191 transitions. [2022-11-25 15:53:57,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 24.80952380952381) internal successors, (521), 21 states have internal predecessors, (521), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:53:57,128 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1191 transitions. [2022-11-25 15:53:57,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2022-11-25 15:53:57,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:53:57,150 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:53:57,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 15:53:57,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 15:53:57,366 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:53:57,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:57,367 INFO L85 PathProgramCache]: Analyzing trace with hash 931954965, now seen corresponding path program 2 times [2022-11-25 15:53:57,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:57,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428178389] [2022-11-25 15:53:57,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:57,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:53:58,498 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:53:58,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1223905704] [2022-11-25 15:53:58,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:53:58,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:53:58,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:53:58,503 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:53:58,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 15:54:03,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 15:54:03,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:54:03,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:54:03,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:54:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2561 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:54:04,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:54:04,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:54:04,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428178389] [2022-11-25 15:54:04,523 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:54:04,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223905704] [2022-11-25 15:54:04,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223905704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:54:04,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:54:04,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:54:04,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759805679] [2022-11-25 15:54:04,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:54:04,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:54:04,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:54:04,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:54:04,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:54:04,529 INFO L87 Difference]: Start difference. First operand 975 states and 1191 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:54:04,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:54:04,682 INFO L93 Difference]: Finished difference Result 1000 states and 1236 transitions. [2022-11-25 15:54:04,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:54:04,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 584 [2022-11-25 15:54:04,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:54:04,690 INFO L225 Difference]: With dead ends: 1000 [2022-11-25 15:54:04,690 INFO L226 Difference]: Without dead ends: 999 [2022-11-25 15:54:04,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:54:04,692 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 60 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:54:04,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 357 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:54:04,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-11-25 15:54:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 978. [2022-11-25 15:54:04,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 933 states have (on average 1.1832797427652733) internal successors, (1104), 944 states have internal predecessors, (1104), 40 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (50), 31 states have call predecessors, (50), 40 states have call successors, (50) [2022-11-25 15:54:04,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1194 transitions. [2022-11-25 15:54:04,795 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1194 transitions. Word has length 584 [2022-11-25 15:54:04,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:54:04,797 INFO L495 AbstractCegarLoop]: Abstraction has 978 states and 1194 transitions. [2022-11-25 15:54:04,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 15:54:04,797 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1194 transitions. [2022-11-25 15:54:04,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-11-25 15:54:04,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:54:04,809 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:54:04,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 15:54:05,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 15:54:05,027 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:54:05,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:54:05,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1245606517, now seen corresponding path program 1 times [2022-11-25 15:54:05,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:54:05,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877746770] [2022-11-25 15:54:05,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:54:05,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:54:06,165 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:54:06,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1649306602] [2022-11-25 15:54:06,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:54:06,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:54:06,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:54:06,167 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:54:06,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 15:54:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:54:15,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 14194 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:54:15,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:54:16,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2564 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:54:16,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:54:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2564 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:54:17,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:54:17,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877746770] [2022-11-25 15:54:17,889 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:54:17,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649306602] [2022-11-25 15:54:17,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649306602] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:54:17,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:54:17,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2022-11-25 15:54:17,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451502865] [2022-11-25 15:54:17,890 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:54:17,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:54:17,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:54:17,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:54:17,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:54:17,893 INFO L87 Difference]: Start difference. First operand 978 states and 1194 transitions. Second operand has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 15:54:18,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:54:18,400 INFO L93 Difference]: Finished difference Result 1069 states and 1344 transitions. [2022-11-25 15:54:18,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 15:54:18,401 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 596 [2022-11-25 15:54:18,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:54:18,407 INFO L225 Difference]: With dead ends: 1069 [2022-11-25 15:54:18,407 INFO L226 Difference]: Without dead ends: 1068 [2022-11-25 15:54:18,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1182 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:54:18,409 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 324 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:54:18,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 538 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 15:54:18,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-25 15:54:18,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1068. [2022-11-25 15:54:18,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 990 states have (on average 1.2030303030303031) internal successors, (1191), 1031 states have internal predecessors, (1191), 70 states have call successors, (70), 6 states have call predecessors, (70), 7 states have return successors, (80), 34 states have call predecessors, (80), 70 states have call successors, (80) [2022-11-25 15:54:18,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1341 transitions. [2022-11-25 15:54:18,501 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1341 transitions. Word has length 596 [2022-11-25 15:54:18,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:54:18,502 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1341 transitions. [2022-11-25 15:54:18,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.666666666666668) internal successors, (168), 10 states have internal predecessors, (168), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 15:54:18,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1341 transitions. [2022-11-25 15:54:18,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-11-25 15:54:18,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:54:18,511 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:54:18,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 15:54:18,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 15:54:18,739 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:54:18,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:54:18,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1422268779, now seen corresponding path program 2 times [2022-11-25 15:54:18,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:54:18,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705624203] [2022-11-25 15:54:18,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:54:18,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:54:19,832 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:54:19,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505576484] [2022-11-25 15:54:19,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:54:19,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:54:19,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:54:19,839 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:54:19,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 15:54:30,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:54:30,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:54:30,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 14302 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 15:54:30,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:54:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:54:31,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:54:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2645 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 2585 trivial. 0 not checked. [2022-11-25 15:54:33,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:54:33,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705624203] [2022-11-25 15:54:33,200 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:54:33,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505576484] [2022-11-25 15:54:33,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505576484] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:54:33,200 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:54:33,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2022-11-25 15:54:33,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473889861] [2022-11-25 15:54:33,201 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:54:33,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-25 15:54:33,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:54:33,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-25 15:54:33,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2022-11-25 15:54:33,204 INFO L87 Difference]: Start difference. First operand 1068 states and 1341 transitions. Second operand has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-11-25 15:54:34,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:54:34,853 INFO L93 Difference]: Finished difference Result 1249 states and 1641 transitions. [2022-11-25 15:54:34,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 15:54:34,859 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 632 [2022-11-25 15:54:34,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:54:34,870 INFO L225 Difference]: With dead ends: 1249 [2022-11-25 15:54:34,871 INFO L226 Difference]: Without dead ends: 1248 [2022-11-25 15:54:34,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1281 GetRequests, 1242 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2022-11-25 15:54:34,873 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 1161 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:54:34,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 960 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 15:54:34,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-11-25 15:54:34,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1248. [2022-11-25 15:54:34,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1104 states have (on average 1.236413043478261) internal successors, (1365), 1205 states have internal predecessors, (1365), 130 states have call successors, (130), 12 states have call predecessors, (130), 13 states have return successors, (140), 40 states have call predecessors, (140), 130 states have call successors, (140) [2022-11-25 15:54:34,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1635 transitions. [2022-11-25 15:54:34,992 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1635 transitions. Word has length 632 [2022-11-25 15:54:34,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:54:34,994 INFO L495 AbstractCegarLoop]: Abstraction has 1248 states and 1635 transitions. [2022-11-25 15:54:34,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 22 states have internal predecessors, (219), 10 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-11-25 15:54:34,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1635 transitions. [2022-11-25 15:54:35,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-11-25 15:54:35,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:54:35,018 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:54:35,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-11-25 15:54:35,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 15:54:35,234 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:54:35,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:54:35,235 INFO L85 PathProgramCache]: Analyzing trace with hash 262807253, now seen corresponding path program 3 times [2022-11-25 15:54:35,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:54:35,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055581076] [2022-11-25 15:54:35,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:54:35,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:54:36,512 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:54:36,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998680914] [2022-11-25 15:54:36,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 15:54:36,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:54:36,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:54:36,517 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:54:36,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-25 15:54:44,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 15:54:44,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:54:44,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:54:44,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:54:44,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3131 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 3020 trivial. 0 not checked. [2022-11-25 15:54:44,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:54:44,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:54:44,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055581076] [2022-11-25 15:54:44,646 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:54:44,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998680914] [2022-11-25 15:54:44,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998680914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:54:44,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:54:44,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:54:44,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243619150] [2022-11-25 15:54:44,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:54:44,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:54:44,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:54:44,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:54:44,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:54:44,649 INFO L87 Difference]: Start difference. First operand 1248 states and 1635 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:54:45,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:54:45,080 INFO L93 Difference]: Finished difference Result 1566 states and 2123 transitions. [2022-11-25 15:54:45,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:54:45,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 704 [2022-11-25 15:54:45,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:54:45,089 INFO L225 Difference]: With dead ends: 1566 [2022-11-25 15:54:45,090 INFO L226 Difference]: Without dead ends: 1565 [2022-11-25 15:54:45,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:54:45,092 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 143 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:54:45,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 351 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:54:45,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-11-25 15:54:45,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1491. [2022-11-25 15:54:45,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 1275 states have (on average 1.275294117647059) internal successors, (1626), 1430 states have internal predecessors, (1626), 193 states have call successors, (193), 21 states have call predecessors, (193), 22 states have return successors, (203), 49 states have call predecessors, (203), 193 states have call successors, (203) [2022-11-25 15:54:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2022 transitions. [2022-11-25 15:54:45,256 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2022 transitions. Word has length 704 [2022-11-25 15:54:45,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:54:45,257 INFO L495 AbstractCegarLoop]: Abstraction has 1491 states and 2022 transitions. [2022-11-25 15:54:45,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:54:45,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2022 transitions. [2022-11-25 15:54:45,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2022-11-25 15:54:45,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:54:45,270 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:54:45,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-25 15:54:45,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:54:45,495 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:54:45,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:54:45,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1833507447, now seen corresponding path program 1 times [2022-11-25 15:54:45,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:54:45,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69298945] [2022-11-25 15:54:45,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:54:45,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:54:46,596 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:54:46,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69109469] [2022-11-25 15:54:46,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:54:46,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:54:46,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:54:46,599 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:54:46,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-25 15:54:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:54:59,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 14520 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 15:54:59,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:55:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:55:01,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:55:03,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 0 proven. 381 refuted. 0 times theorem prover too weak. 2741 trivial. 0 not checked. [2022-11-25 15:55:03,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:55:03,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69298945] [2022-11-25 15:55:03,196 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:55:03,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69109469] [2022-11-25 15:55:03,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69109469] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:55:03,197 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:55:03,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 45 [2022-11-25 15:55:03,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12967462] [2022-11-25 15:55:03,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:55:03,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-25 15:55:03,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:55:03,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-25 15:55:03,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2022-11-25 15:55:03,204 INFO L87 Difference]: Start difference. First operand 1491 states and 2022 transitions. Second operand has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-11-25 15:55:07,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:55:07,901 INFO L93 Difference]: Finished difference Result 2207 states and 3189 transitions. [2022-11-25 15:55:07,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-25 15:55:07,903 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 705 [2022-11-25 15:55:07,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:55:07,914 INFO L225 Difference]: With dead ends: 2207 [2022-11-25 15:55:07,915 INFO L226 Difference]: Without dead ends: 2206 [2022-11-25 15:55:07,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1451 GetRequests, 1364 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2529, Invalid=5303, Unknown=0, NotChecked=0, Total=7832 [2022-11-25 15:55:07,919 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 3115 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 1642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3125 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1642 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-25 15:55:07,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3125 Valid, 1191 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1642 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-25 15:55:07,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-11-25 15:55:08,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2187. [2022-11-25 15:55:08,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 1731 states have (on average 1.341421143847487) internal successors, (2322), 2090 states have internal predecessors, (2322), 409 states have call successors, (409), 45 states have call predecessors, (409), 46 states have return successors, (419), 73 states have call predecessors, (419), 409 states have call successors, (419) [2022-11-25 15:55:08,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3150 transitions. [2022-11-25 15:55:08,185 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3150 transitions. Word has length 705 [2022-11-25 15:55:08,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:55:08,186 INFO L495 AbstractCegarLoop]: Abstraction has 2187 states and 3150 transitions. [2022-11-25 15:55:08,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 7.177777777777778) internal successors, (323), 46 states have internal predecessors, (323), 22 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-11-25 15:55:08,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3150 transitions. [2022-11-25 15:55:08,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2022-11-25 15:55:08,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:55:08,213 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:55:08,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-25 15:55:08,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:55:08,427 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:55:08,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:55:08,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1134986761, now seen corresponding path program 2 times [2022-11-25 15:55:08,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:55:08,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108167866] [2022-11-25 15:55:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:55:08,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:55:09,560 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:55:09,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735438357] [2022-11-25 15:55:09,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:55:09,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:55:09,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:55:09,562 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:55:09,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-25 15:55:23,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:55:23,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:55:23,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 14952 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-25 15:55:23,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:55:25,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5378 backedges. 0 proven. 2817 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:55:25,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:55:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5378 backedges. 0 proven. 1893 refuted. 0 times theorem prover too weak. 3485 trivial. 0 not checked. [2022-11-25 15:55:29,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:55:29,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108167866] [2022-11-25 15:55:29,582 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:55:29,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735438357] [2022-11-25 15:55:29,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735438357] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:55:29,583 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:55:29,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 93 [2022-11-25 15:55:29,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075050459] [2022-11-25 15:55:29,584 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:55:29,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-11-25 15:55:29,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:55:29,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-11-25 15:55:29,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2022-11-25 15:55:29,598 INFO L87 Difference]: Start difference. First operand 2187 states and 3150 transitions. Second operand has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-11-25 15:55:42,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:55:42,594 INFO L93 Difference]: Finished difference Result 3599 states and 5457 transitions. [2022-11-25 15:55:42,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2022-11-25 15:55:42,596 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) Word has length 849 [2022-11-25 15:55:42,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:55:42,618 INFO L225 Difference]: With dead ends: 3599 [2022-11-25 15:55:42,618 INFO L226 Difference]: Without dead ends: 3598 [2022-11-25 15:55:42,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1787 GetRequests, 1604 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7507 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=10809, Invalid=23231, Unknown=0, NotChecked=0, Total=34040 [2022-11-25 15:55:42,630 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 7853 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 4635 mSolverCounterSat, 4487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7863 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 9122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4487 IncrementalHoareTripleChecker+Valid, 4635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:55:42,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7863 Valid, 2095 Invalid, 9122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4487 Valid, 4635 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-25 15:55:42,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states. [2022-11-25 15:55:43,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 3579. [2022-11-25 15:55:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3579 states, 2643 states have (on average 1.40522133938706) internal successors, (3714), 3410 states have internal predecessors, (3714), 841 states have call successors, (841), 93 states have call predecessors, (841), 94 states have return successors, (851), 121 states have call predecessors, (851), 841 states have call successors, (851) [2022-11-25 15:55:43,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 5406 transitions. [2022-11-25 15:55:43,131 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 5406 transitions. Word has length 849 [2022-11-25 15:55:43,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:55:43,133 INFO L495 AbstractCegarLoop]: Abstraction has 3579 states and 5406 transitions. [2022-11-25 15:55:43,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 5.666666666666667) internal successors, (527), 94 states have internal predecessors, (527), 46 states have call successors, (48), 24 states have call predecessors, (48), 24 states have return successors, (48), 46 states have call predecessors, (48), 46 states have call successors, (48) [2022-11-25 15:55:43,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 5406 transitions. [2022-11-25 15:55:43,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1138 [2022-11-25 15:55:43,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:55:43,165 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:55:43,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-25 15:55:43,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:55:43,391 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:55:43,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:55:43,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1291503369, now seen corresponding path program 3 times [2022-11-25 15:55:43,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:55:43,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467315743] [2022-11-25 15:55:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:55:43,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:55:44,565 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:55:44,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302750164] [2022-11-25 15:55:44,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 15:55:44,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:55:44,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:55:44,571 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:55:44,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-25 15:55:56,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 15:55:56,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:55:56,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:55:56,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:55:56,641 INFO L134 CoverageAnalysis]: Checked inductivity of 15074 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 14576 trivial. 0 not checked. [2022-11-25 15:55:56,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:55:56,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:55:56,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467315743] [2022-11-25 15:55:56,642 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:55:56,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302750164] [2022-11-25 15:55:56,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302750164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:55:56,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:55:56,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:55:56,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386572578] [2022-11-25 15:55:56,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:55:56,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:55:56,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:55:56,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:55:56,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:55:56,646 INFO L87 Difference]: Start difference. First operand 3579 states and 5406 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:55:57,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:55:57,645 INFO L93 Difference]: Finished difference Result 6455 states and 9893 transitions. [2022-11-25 15:55:57,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:55:57,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 1137 [2022-11-25 15:55:57,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:55:57,690 INFO L225 Difference]: With dead ends: 6455 [2022-11-25 15:55:57,691 INFO L226 Difference]: Without dead ends: 6454 [2022-11-25 15:55:57,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1145 GetRequests, 1136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:55:57,696 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 187 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:55:57,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 404 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:55:57,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6454 states. [2022-11-25 15:55:58,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6454 to 5990. [2022-11-25 15:55:58,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 4350 states have (on average 1.453103448275862) internal successors, (6321), 5642 states have internal predecessors, (6321), 1456 states have call successors, (1456), 182 states have call predecessors, (1456), 183 states have return successors, (1466), 210 states have call predecessors, (1466), 1456 states have call successors, (1466) [2022-11-25 15:55:58,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 9243 transitions. [2022-11-25 15:55:58,742 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 9243 transitions. Word has length 1137 [2022-11-25 15:55:58,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:55:58,745 INFO L495 AbstractCegarLoop]: Abstraction has 5990 states and 9243 transitions. [2022-11-25 15:55:58,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 15:55:58,747 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 9243 transitions. [2022-11-25 15:55:58,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2022-11-25 15:55:58,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:55:58,790 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 44, 44, 44, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:55:58,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-25 15:55:59,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:55:59,015 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:55:59,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:55:59,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2041636921, now seen corresponding path program 1 times [2022-11-25 15:55:59,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:55:59,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411821451] [2022-11-25 15:55:59,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:55:59,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:56:00,154 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:56:00,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918776551] [2022-11-25 15:56:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:56:00,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:56:00,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:56:00,156 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:56:00,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-25 15:56:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:56:16,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 15820 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-25 15:56:16,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:56:21,882 INFO L134 CoverageAnalysis]: Checked inductivity of 15031 backedges. 0 proven. 12470 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:56:21,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:56:32,265 INFO L134 CoverageAnalysis]: Checked inductivity of 15031 backedges. 0 proven. 8330 refuted. 0 times theorem prover too weak. 6701 trivial. 0 not checked. [2022-11-25 15:56:32,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:56:32,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411821451] [2022-11-25 15:56:32,266 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:56:32,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918776551] [2022-11-25 15:56:32,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918776551] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:56:32,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:56:32,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 95] total 189 [2022-11-25 15:56:32,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244319775] [2022-11-25 15:56:32,267 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:56:32,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-11-25 15:56:32,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:56:32,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-11-25 15:56:32,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2022-11-25 15:56:32,282 INFO L87 Difference]: Start difference. First operand 5990 states and 9243 transitions. Second operand has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-11-25 15:57:26,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:57:26,225 INFO L93 Difference]: Finished difference Result 11421 states and 18006 transitions. [2022-11-25 15:57:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 284 states. [2022-11-25 15:57:26,227 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) Word has length 1139 [2022-11-25 15:57:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:57:26,297 INFO L225 Difference]: With dead ends: 11421 [2022-11-25 15:57:26,298 INFO L226 Difference]: Without dead ends: 11420 [2022-11-25 15:57:26,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2463 GetRequests, 2088 SyntacticMatches, 0 SemanticMatches, 375 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32251 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=44649, Invalid=97103, Unknown=0, NotChecked=0, Total=141752 [2022-11-25 15:57:26,329 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 16916 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 10775 mSolverCounterSat, 9842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16926 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 20617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9842 IncrementalHoareTripleChecker+Valid, 10775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:57:26,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16926 Valid, 3323 Invalid, 20617 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9842 Valid, 10775 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2022-11-25 15:57:26,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11420 states. [2022-11-25 15:57:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11420 to 11366. [2022-11-25 15:57:27,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11366 states, 7998 states have (on average 1.4864966241560391) internal successors, (11889), 10682 states have internal predecessors, (11889), 2992 states have call successors, (2992), 374 states have call predecessors, (2992), 375 states have return successors, (3002), 402 states have call predecessors, (3002), 2992 states have call successors, (3002) [2022-11-25 15:57:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11366 states to 11366 states and 17883 transitions. [2022-11-25 15:57:27,797 INFO L78 Accepts]: Start accepts. Automaton has 11366 states and 17883 transitions. Word has length 1139 [2022-11-25 15:57:27,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:57:27,800 INFO L495 AbstractCegarLoop]: Abstraction has 11366 states and 17883 transitions. [2022-11-25 15:57:27,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 4.968253968253968) internal successors, (939), 190 states have internal predecessors, (939), 94 states have call successors, (96), 48 states have call predecessors, (96), 48 states have return successors, (96), 94 states have call predecessors, (96), 94 states have call successors, (96) [2022-11-25 15:57:27,801 INFO L276 IsEmpty]: Start isEmpty. Operand 11366 states and 17883 transitions. [2022-11-25 15:57:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1716 [2022-11-25 15:57:28,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:57:28,009 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 92, 92, 92, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:57:28,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-25 15:57:28,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-25 15:57:28,235 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:57:28,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:57:28,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1045227065, now seen corresponding path program 2 times [2022-11-25 15:57:28,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:57:28,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644402205] [2022-11-25 15:57:28,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:57:28,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:57:29,609 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:57:29,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458055123] [2022-11-25 15:57:29,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:57:29,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:57:29,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:57:29,619 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:57:29,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-25 15:57:45,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:57:45,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:57:45,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 17548 conjuncts, 191 conjunts are in the unsatisfiable core [2022-11-25 15:57:45,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:58:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 55111 backedges. 0 proven. 52550 refuted. 0 times theorem prover too weak. 2561 trivial. 0 not checked. [2022-11-25 15:58:02,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:58:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 55111 backedges. 0 proven. 35066 refuted. 0 times theorem prover too weak. 20045 trivial. 0 not checked. [2022-11-25 15:58:40,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:58:40,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644402205] [2022-11-25 15:58:40,029 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:58:40,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458055123] [2022-11-25 15:58:40,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458055123] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:58:40,030 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:58:40,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [190, 191] total 381 [2022-11-25 15:58:40,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124190331] [2022-11-25 15:58:40,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:58:40,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-11-25 15:58:40,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:58:40,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-11-25 15:58:40,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2022-11-25 15:58:40,071 INFO L87 Difference]: Start difference. First operand 11366 states and 17883 transitions. Second operand has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) [2022-11-25 16:04:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:04:24,693 INFO L93 Difference]: Finished difference Result 22173 states and 35334 transitions. [2022-11-25 16:04:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 572 states. [2022-11-25 16:04:24,694 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) Word has length 1715 [2022-11-25 16:04:24,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:04:24,831 INFO L225 Difference]: With dead ends: 22173 [2022-11-25 16:04:24,831 INFO L226 Difference]: Without dead ends: 22172 [2022-11-25 16:04:24,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3807 GetRequests, 3048 SyntacticMatches, 0 SemanticMatches, 759 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133579 ImplicationChecksByTransitivity, 122.8s TimeCoverageRelationStatistics Valid=181449, Invalid=396911, Unknown=0, NotChecked=0, Total=578360 [2022-11-25 16:04:24,920 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 37645 mSDsluCounter, 6380 mSDsCounter, 0 mSdLazyCounter, 28077 mSolverCounterSat, 22555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37655 SdHoareTripleChecker+Valid, 6530 SdHoareTripleChecker+Invalid, 50632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 22555 IncrementalHoareTripleChecker+Valid, 28077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2022-11-25 16:04:24,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37655 Valid, 6530 Invalid, 50632 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [22555 Valid, 28077 Invalid, 0 Unknown, 0 Unchecked, 32.9s Time] [2022-11-25 16:04:24,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22172 states. [2022-11-25 16:04:28,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22172 to 22118. [2022-11-25 16:04:28,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22118 states, 15294 states have (on average 1.5054923499411534) internal successors, (23025), 20762 states have internal predecessors, (23025), 6064 states have call successors, (6064), 758 states have call predecessors, (6064), 759 states have return successors, (6074), 786 states have call predecessors, (6074), 6064 states have call successors, (6074) [2022-11-25 16:04:28,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22118 states to 22118 states and 35163 transitions. [2022-11-25 16:04:28,761 INFO L78 Accepts]: Start accepts. Automaton has 22118 states and 35163 transitions. Word has length 1715 [2022-11-25 16:04:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:04:28,763 INFO L495 AbstractCegarLoop]: Abstraction has 22118 states and 35163 transitions. [2022-11-25 16:04:28,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 4.606299212598425) internal successors, (1755), 382 states have internal predecessors, (1755), 190 states have call successors, (192), 96 states have call predecessors, (192), 96 states have return successors, (192), 190 states have call predecessors, (192), 190 states have call successors, (192) [2022-11-25 16:04:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 22118 states and 35163 transitions. [2022-11-25 16:04:28,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2868 [2022-11-25 16:04:28,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:04:28,932 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 190, 190, 188, 188, 188, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:04:29,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-25 16:04:29,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-25 16:04:29,147 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 16:04:29,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:04:29,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1144316473, now seen corresponding path program 3 times [2022-11-25 16:04:29,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:04:29,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537048891] [2022-11-25 16:04:29,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:04:29,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:04:31,261 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:04:31,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465282650] [2022-11-25 16:04:31,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:04:31,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:04:31,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:04:31,263 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:04:31,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-25 16:04:46,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 16:04:46,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:04:46,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:04:46,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:04:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 218215 backedges. 2083 proven. 0 refuted. 0 times theorem prover too weak. 216132 trivial. 0 not checked. [2022-11-25 16:04:46,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:04:46,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:04:46,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537048891] [2022-11-25 16:04:46,424 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 16:04:46,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465282650] [2022-11-25 16:04:46,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465282650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:04:46,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:04:46,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:04:46,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321393130] [2022-11-25 16:04:46,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:04:46,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:04:46,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:04:46,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:04:46,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:04:46,430 INFO L87 Difference]: Start difference. First operand 22118 states and 35163 transitions. Second operand has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 16:04:51,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:04:51,783 INFO L93 Difference]: Finished difference Result 45073 states and 70897 transitions. [2022-11-25 16:04:51,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:04:51,784 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 2867 [2022-11-25 16:04:51,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:04:51,984 INFO L225 Difference]: With dead ends: 45073 [2022-11-25 16:04:51,984 INFO L226 Difference]: Without dead ends: 45072 [2022-11-25 16:04:52,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2875 GetRequests, 2866 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:04:52,006 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 303 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:04:52,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 387 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:04:52,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45072 states. [2022-11-25 16:04:57,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45072 to 36606. [2022-11-25 16:04:57,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36606 states, 26032 states have (on average 1.5140212046711738) internal successors, (39413), 34119 states have internal predecessors, (39413), 9248 states have call successors, (9248), 1324 states have call predecessors, (9248), 1325 states have return successors, (9258), 1351 states have call predecessors, (9258), 9248 states have call successors, (9258) [2022-11-25 16:04:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36606 states to 36606 states and 57919 transitions. [2022-11-25 16:04:57,966 INFO L78 Accepts]: Start accepts. Automaton has 36606 states and 57919 transitions. Word has length 2867 [2022-11-25 16:04:57,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:04:57,971 INFO L495 AbstractCegarLoop]: Abstraction has 36606 states and 57919 transitions. [2022-11-25 16:04:57,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 16:04:57,971 INFO L276 IsEmpty]: Start isEmpty. Operand 36606 states and 57919 transitions. [2022-11-25 16:04:58,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2869 [2022-11-25 16:04:58,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:04:58,285 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 189, 189, 189, 189, 189, 189, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:04:58,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-25 16:04:58,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-25 16:04:58,511 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 16:04:58,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:04:58,512 INFO L85 PathProgramCache]: Analyzing trace with hash -376836015, now seen corresponding path program 1 times [2022-11-25 16:04:58,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:04:58,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134340270] [2022-11-25 16:04:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:04:58,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:05:00,328 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 16:05:00,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466501277] [2022-11-25 16:05:00,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:05:00,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:05:00,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:05:00,335 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:05:00,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d408d02b-c7a4-463f-941f-d882d8de3e35/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-25 16:05:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:05:21,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 21007 conjuncts, 383 conjunts are in the unsatisfiable core [2022-11-25 16:05:21,656 INFO L286 TraceCheckSpWp]: Computing forward predicates...