./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/init-2-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-2-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8 --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 44b18e123610caaf6237dddd08dfbd765ad919d1168e6261239628431b3c22b1 --- 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-2329fc7 [2022-12-13 15:09:29,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:09:29,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:09:29,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:09:29,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:09:29,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:09:29,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:09:29,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:09:29,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:09:29,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:09:29,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:09:29,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:09:29,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:09:29,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:09:29,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:09:29,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:09:29,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:09:29,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:09:29,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:09:29,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:09:29,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:09:29,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:09:29,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:09:29,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:09:29,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:09:29,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:09:29,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:09:29,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:09:29,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:09:29,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:09:29,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:09:29,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:09:29,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:09:29,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:09:29,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:09:29,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:09:29,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:09:29,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:09:29,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:09:29,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:09:29,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:09:29,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 15:09:29,243 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:09:29,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:09:29,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:09:29,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:09:29,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:09:29,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:09:29,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:09:29,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:09:29,245 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:09:29,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:09:29,246 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:09:29,246 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:09:29,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:09:29,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:09:29,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:09:29,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:09:29,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:09:29,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:09:29,247 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:09:29,247 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:09:29,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:09:29,247 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:09:29,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:09:29,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:09:29,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:09:29,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:09:29,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:09:29,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:09:29,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:09:29,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:09:29,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:09:29,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:09:29,249 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:09:29,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:09:29,249 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:09:29,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:09:29,249 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:09:29,249 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_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44b18e123610caaf6237dddd08dfbd765ad919d1168e6261239628431b3c22b1 [2022-12-13 15:09:29,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:09:29,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:09:29,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:09:29,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:09:29,466 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:09:29,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/array-multidimensional/init-2-n-u.c [2022-12-13 15:09:32,102 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:09:32,261 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:09:32,261 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/sv-benchmarks/c/array-multidimensional/init-2-n-u.c [2022-12-13 15:09:32,266 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/data/a5f6d06c8/21d71aeab2314d27a2fca4bc49676420/FLAG73ea449a4 [2022-12-13 15:09:32,276 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/data/a5f6d06c8/21d71aeab2314d27a2fca4bc49676420 [2022-12-13 15:09:32,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:09:32,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:09:32,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:09:32,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:09:32,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:09:32,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dfd9d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32, skipping insertion in model container [2022-12-13 15:09:32,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:09:32,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:09:32,447 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_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/sv-benchmarks/c/array-multidimensional/init-2-n-u.c[322,335] [2022-12-13 15:09:32,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:09:32,464 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:09:32,473 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_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/sv-benchmarks/c/array-multidimensional/init-2-n-u.c[322,335] [2022-12-13 15:09:32,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:09:32,488 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:09:32,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32 WrapperNode [2022-12-13 15:09:32,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:09:32,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:09:32,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:09:32,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:09:32,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,516 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2022-12-13 15:09:32,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:09:32,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:09:32,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:09:32,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:09:32,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:09:32,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:09:32,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:09:32,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:09:32,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (1/1) ... [2022-12-13 15:09:32,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:09:32,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:09:32,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:09:32,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:09:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:09:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:09:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:09:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:09:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:09:32,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:09:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:09:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:09:32,666 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:09:32,667 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:09:32,781 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:09:32,787 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:09:32,787 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 15:09:32,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:09:32 BoogieIcfgContainer [2022-12-13 15:09:32,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:09:32,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:09:32,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:09:32,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:09:32,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:09:32" (1/3) ... [2022-12-13 15:09:32,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209224aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:09:32, skipping insertion in model container [2022-12-13 15:09:32,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:09:32" (2/3) ... [2022-12-13 15:09:32,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209224aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:09:32, skipping insertion in model container [2022-12-13 15:09:32,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:09:32" (3/3) ... [2022-12-13 15:09:32,796 INFO L112 eAbstractionObserver]: Analyzing ICFG init-2-n-u.c [2022-12-13 15:09:32,812 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:09:32,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 15:09:32,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:09:32,855 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;@14a818cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:09:32,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 15:09:32,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 29 states have internal predecessors, (38), 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) [2022-12-13 15:09:32,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 15:09:32,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:09:32,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 15:09:32,865 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 15:09:32,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:09:32,869 INFO L85 PathProgramCache]: Analyzing trace with hash 28699890, now seen corresponding path program 1 times [2022-12-13 15:09:32,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:09:32,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146397646] [2022-12-13 15:09:32,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:32,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:09:32,946 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:09:32,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163660942] [2022-12-13 15:09:32,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:32,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:32,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:09:32,948 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:09:32,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:09:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:09:33,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:09:33,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:09:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:09:33,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:09:33,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:09:33,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146397646] [2022-12-13 15:09:33,043 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:09:33,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163660942] [2022-12-13 15:09:33,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163660942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:09:33,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:09:33,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:09:33,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745454064] [2022-12-13 15:09:33,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:09:33,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:09:33,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:09:33,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:09:33,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:09:33,077 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 29 states have internal predecessors, (38), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-12-13 15:09:33,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:09:33,114 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2022-12-13 15:09:33,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:09:33,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-12-13 15:09:33,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:09:33,122 INFO L225 Difference]: With dead ends: 56 [2022-12-13 15:09:33,122 INFO L226 Difference]: Without dead ends: 23 [2022-12-13 15:09:33,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:09:33,127 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:09:33,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 20 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:09:33,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-13 15:09:33,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-13 15:09:33,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 22 states have internal predecessors, (26), 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) [2022-12-13 15:09:33,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-12-13 15:09:33,151 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 5 [2022-12-13 15:09:33,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:09:33,152 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-12-13 15:09:33,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-12-13 15:09:33,152 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-12-13 15:09:33,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 15:09:33,152 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:09:33,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 15:09:33,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:09:33,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 15:09:33,355 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 15:09:33,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:09:33,357 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2022-12-13 15:09:33,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:09:33,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382858792] [2022-12-13 15:09:33,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:33,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:09:33,392 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:09:33,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166150136] [2022-12-13 15:09:33,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:33,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:33,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:09:33,398 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:09:33,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:09:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:09:33,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:09:33,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:09:33,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:09:33,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:09:33,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:09:33,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382858792] [2022-12-13 15:09:33,527 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:09:33,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166150136] [2022-12-13 15:09:33,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166150136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:09:33,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:09:33,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:09:33,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427622321] [2022-12-13 15:09:33,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:09:33,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:09:33,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:09:33,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:09:33,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:09:33,530 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-12-13 15:09:33,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:09:33,555 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 15:09:33,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:09:33,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-12-13 15:09:33,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:09:33,556 INFO L225 Difference]: With dead ends: 23 [2022-12-13 15:09:33,556 INFO L226 Difference]: Without dead ends: 21 [2022-12-13 15:09:33,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:09:33,558 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:09:33,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 15 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:09:33,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-13 15:09:33,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-12-13 15:09:33,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 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) [2022-12-13 15:09:33,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-12-13 15:09:33,564 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 5 [2022-12-13 15:09:33,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:09:33,565 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-12-13 15:09:33,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-12-13 15:09:33,565 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-12-13 15:09:33,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 15:09:33,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:09:33,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:09:33,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 15:09:33,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:33,769 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 15:09:33,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:09:33,771 INFO L85 PathProgramCache]: Analyzing trace with hash 889696651, now seen corresponding path program 1 times [2022-12-13 15:09:33,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:09:33,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374842473] [2022-12-13 15:09:33,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:33,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:09:33,808 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:09:33,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [323092107] [2022-12-13 15:09:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:33,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:33,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:09:33,814 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:09:33,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 15:09:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:09:33,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:09:33,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:09:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:09:33,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:09:33,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:09:33,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374842473] [2022-12-13 15:09:33,899 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:09:33,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323092107] [2022-12-13 15:09:33,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323092107] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:09:33,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:09:33,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:09:33,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111766737] [2022-12-13 15:09:33,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:09:33,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:09:33,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:09:33,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:09:33,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:09:33,902 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2022-12-13 15:09:33,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:09:33,936 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2022-12-13 15:09:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:09:33,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2022-12-13 15:09:33,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:09:33,937 INFO L225 Difference]: With dead ends: 40 [2022-12-13 15:09:33,938 INFO L226 Difference]: Without dead ends: 38 [2022-12-13 15:09:33,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:09:33,939 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:09:33,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 26 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:09:33,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-13 15:09:33,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2022-12-13 15:09:33,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 34 states have internal predecessors, (43), 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) [2022-12-13 15:09:33,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2022-12-13 15:09:33,948 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 6 [2022-12-13 15:09:33,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:09:33,949 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2022-12-13 15:09:33,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2022-12-13 15:09:33,949 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2022-12-13 15:09:33,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 15:09:33,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:09:33,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:09:33,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 15:09:34,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:34,152 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 15:09:34,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:09:34,155 INFO L85 PathProgramCache]: Analyzing trace with hash 889698349, now seen corresponding path program 1 times [2022-12-13 15:09:34,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:09:34,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594205013] [2022-12-13 15:09:34,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:34,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:09:34,198 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:09:34,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513675930] [2022-12-13 15:09:34,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:34,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:34,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:09:34,202 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:09:34,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 15:09:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:09:34,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:09:34,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:09:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:09:34,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:09:34,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:09:34,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594205013] [2022-12-13 15:09:34,273 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:09:34,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513675930] [2022-12-13 15:09:34,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513675930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:09:34,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:09:34,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:09:34,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784614833] [2022-12-13 15:09:34,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:09:34,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:09:34,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:09:34,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:09:34,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:09:34,275 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2022-12-13 15:09:34,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:09:34,306 INFO L93 Difference]: Finished difference Result 66 states and 81 transitions. [2022-12-13 15:09:34,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:09:34,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2022-12-13 15:09:34,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:09:34,307 INFO L225 Difference]: With dead ends: 66 [2022-12-13 15:09:34,307 INFO L226 Difference]: Without dead ends: 64 [2022-12-13 15:09:34,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:09:34,309 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:09:34,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 26 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:09:34,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-12-13 15:09:34,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 51. [2022-12-13 15:09:34,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 50 states have internal predecessors, (63), 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) [2022-12-13 15:09:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2022-12-13 15:09:34,320 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 6 [2022-12-13 15:09:34,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:09:34,320 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2022-12-13 15:09:34,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2022-12-13 15:09:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2022-12-13 15:09:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 15:09:34,321 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:09:34,321 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-12-13 15:09:34,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 15:09:34,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:34,523 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 15:09:34,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:09:34,525 INFO L85 PathProgramCache]: Analyzing trace with hash 760381159, now seen corresponding path program 1 times [2022-12-13 15:09:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:09:34,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001395671] [2022-12-13 15:09:34,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:34,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:09:34,536 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:09:34,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900942945] [2022-12-13 15:09:34,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:34,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:34,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:09:34,538 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:09:34,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 15:09:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:09:34,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:09:34,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:09:34,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:09:34,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:09:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:09:34,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:09:34,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001395671] [2022-12-13 15:09:34,665 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:09:34,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900942945] [2022-12-13 15:09:34,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900942945] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:09:34,665 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:09:34,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-12-13 15:09:34,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814511291] [2022-12-13 15:09:34,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:09:34,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:09:34,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:09:34,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:09:34,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:09:34,667 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-12-13 15:09:34,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:09:34,740 INFO L93 Difference]: Finished difference Result 153 states and 191 transitions. [2022-12-13 15:09:34,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:09:34,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 9 [2022-12-13 15:09:34,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:09:34,743 INFO L225 Difference]: With dead ends: 153 [2022-12-13 15:09:34,743 INFO L226 Difference]: Without dead ends: 151 [2022-12-13 15:09:34,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:09:34,744 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 91 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:09:34,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 54 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:09:34,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-12-13 15:09:34,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 99. [2022-12-13 15:09:34,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.2947368421052632) internal successors, (123), 98 states have internal predecessors, (123), 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) [2022-12-13 15:09:34,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 123 transitions. [2022-12-13 15:09:34,755 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 123 transitions. Word has length 9 [2022-12-13 15:09:34,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:09:34,755 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 123 transitions. [2022-12-13 15:09:34,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-12-13 15:09:34,755 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 123 transitions. [2022-12-13 15:09:34,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 15:09:34,755 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:09:34,756 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-13 15:09:34,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 15:09:34,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:34,957 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 15:09:34,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:09:34,959 INFO L85 PathProgramCache]: Analyzing trace with hash 528569044, now seen corresponding path program 1 times [2022-12-13 15:09:34,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:09:34,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532637408] [2022-12-13 15:09:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:34,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:09:34,979 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:09:34,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728696257] [2022-12-13 15:09:34,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:34,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:34,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:09:34,983 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:09:34,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 15:09:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:09:35,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:09:35,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:09:35,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 15:09:35,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:09:35,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:09:35,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532637408] [2022-12-13 15:09:35,197 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:09:35,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728696257] [2022-12-13 15:09:35,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728696257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:09:35,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:09:35,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:09:35,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948097318] [2022-12-13 15:09:35,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:09:35,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:09:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:09:35,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:09:35,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:09:35,200 INFO L87 Difference]: Start difference. First operand 99 states and 123 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 15:09:35,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:09:35,238 INFO L93 Difference]: Finished difference Result 181 states and 222 transitions. [2022-12-13 15:09:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:09:35,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 10 [2022-12-13 15:09:35,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:09:35,239 INFO L225 Difference]: With dead ends: 181 [2022-12-13 15:09:35,239 INFO L226 Difference]: Without dead ends: 100 [2022-12-13 15:09:35,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:09:35,240 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:09:35,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 27 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:09:35,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-13 15:09:35,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2022-12-13 15:09:35,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.2526315789473683) internal successors, (119), 98 states have internal predecessors, (119), 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) [2022-12-13 15:09:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 119 transitions. [2022-12-13 15:09:35,248 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 119 transitions. Word has length 10 [2022-12-13 15:09:35,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:09:35,249 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 119 transitions. [2022-12-13 15:09:35,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 15:09:35,249 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 119 transitions. [2022-12-13 15:09:35,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 15:09:35,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:09:35,249 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-12-13 15:09:35,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 15:09:35,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 15:09:35,451 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 15:09:35,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:09:35,453 INFO L85 PathProgramCache]: Analyzing trace with hash -263226782, now seen corresponding path program 1 times [2022-12-13 15:09:35,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:09:35,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929933713] [2022-12-13 15:09:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:35,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:09:35,477 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:09:35,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1734318783] [2022-12-13 15:09:35,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:35,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:35,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:09:35,481 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:09:35,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 15:09:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:09:35,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:09:35,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:09:35,619 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:09:35,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:09:35,642 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 15:09:35,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:09:35,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929933713] [2022-12-13 15:09:35,642 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:09:35,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734318783] [2022-12-13 15:09:35,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734318783] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:09:35,642 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:09:35,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 15:09:35,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488431507] [2022-12-13 15:09:35,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:09:35,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:09:35,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:09:35,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:09:35,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:09:35,644 INFO L87 Difference]: Start difference. First operand 99 states and 119 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2022-12-13 15:09:35,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:09:35,708 INFO L93 Difference]: Finished difference Result 181 states and 215 transitions. [2022-12-13 15:09:35,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:09:35,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 16 [2022-12-13 15:09:35,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:09:35,709 INFO L225 Difference]: With dead ends: 181 [2022-12-13 15:09:35,709 INFO L226 Difference]: Without dead ends: 100 [2022-12-13 15:09:35,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:09:35,710 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 79 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:09:35,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 38 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:09:35,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-13 15:09:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2022-12-13 15:09:35,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.1263157894736842) internal successors, (107), 98 states have internal predecessors, (107), 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) [2022-12-13 15:09:35,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 107 transitions. [2022-12-13 15:09:35,717 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 107 transitions. Word has length 16 [2022-12-13 15:09:35,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:09:35,718 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 107 transitions. [2022-12-13 15:09:35,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2022-12-13 15:09:35,718 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 107 transitions. [2022-12-13 15:09:35,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 15:09:35,718 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:09:35,718 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2022-12-13 15:09:35,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 15:09:35,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:35,919 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 15:09:35,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:09:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash -757857363, now seen corresponding path program 2 times [2022-12-13 15:09:35,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:09:35,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452186385] [2022-12-13 15:09:35,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:35,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:09:35,944 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:09:35,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157095348] [2022-12-13 15:09:35,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:09:35,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:35,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:09:35,949 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:09:35,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 15:09:36,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 15:09:36,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:09:36,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:09:36,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:09:36,094 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 15:09:36,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:09:36,123 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 15:09:36,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:09:36,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452186385] [2022-12-13 15:09:36,123 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:09:36,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157095348] [2022-12-13 15:09:36,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157095348] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:09:36,124 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:09:36,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-12-13 15:09:36,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779297679] [2022-12-13 15:09:36,124 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:09:36,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:09:36,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:09:36,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:09:36,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:09:36,125 INFO L87 Difference]: Start difference. First operand 99 states and 107 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-12-13 15:09:36,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:09:36,160 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2022-12-13 15:09:36,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:09:36,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 18 [2022-12-13 15:09:36,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:09:36,161 INFO L225 Difference]: With dead ends: 100 [2022-12-13 15:09:36,161 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 15:09:36,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:09:36,163 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 60 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:09:36,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 23 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:09:36,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 15:09:36,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 85. [2022-12-13 15:09:36,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 83 states have (on average 1.0963855421686748) internal successors, (91), 84 states have internal predecessors, (91), 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) [2022-12-13 15:09:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2022-12-13 15:09:36,171 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 18 [2022-12-13 15:09:36,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:09:36,171 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2022-12-13 15:09:36,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-12-13 15:09:36,171 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2022-12-13 15:09:36,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-13 15:09:36,172 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:09:36,172 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1] [2022-12-13 15:09:36,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 15:09:36,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:36,373 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 15:09:36,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:09:36,373 INFO L85 PathProgramCache]: Analyzing trace with hash -653900716, now seen corresponding path program 2 times [2022-12-13 15:09:36,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:09:36,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094736481] [2022-12-13 15:09:36,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:36,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:09:36,382 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:09:36,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542706574] [2022-12-13 15:09:36,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:09:36,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:36,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:09:36,384 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:09:36,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 15:09:36,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 15:09:36,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:09:36,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:09:36,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:09:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 15:09:36,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:09:36,498 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 15:09:36,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:09:36,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094736481] [2022-12-13 15:09:36,499 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:09:36,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542706574] [2022-12-13 15:09:36,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542706574] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:09:36,499 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:09:36,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-12-13 15:09:36,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32326404] [2022-12-13 15:09:36,499 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:09:36,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:09:36,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:09:36,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:09:36,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:09:36,501 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2022-12-13 15:09:36,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:09:36,543 INFO L93 Difference]: Finished difference Result 86 states and 92 transitions. [2022-12-13 15:09:36,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:09:36,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 34 [2022-12-13 15:09:36,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:09:36,544 INFO L225 Difference]: With dead ends: 86 [2022-12-13 15:09:36,544 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 15:09:36,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:09:36,545 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 48 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:09:36,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 13 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:09:36,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 15:09:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 15:09:36,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:09:36,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 15:09:36,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2022-12-13 15:09:36,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:09:36,547 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 15:09:36,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2022-12-13 15:09:36,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 15:09:36,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 15:09:36,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-13 15:09:36,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-13 15:09:36,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-13 15:09:36,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-13 15:09:36,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-13 15:09:36,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-13 15:09:36,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-13 15:09:36,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-13 15:09:36,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 15:09:36,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:09:36,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 15:09:37,085 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-12-13 15:09:37,085 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 31) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-12-13 15:09:37,085 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 23 31) no Hoare annotation was computed. [2022-12-13 15:09:37,085 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 13 49) the Hoare annotation is: (<= 0 |ULTIMATE.start_main_~i~0#1|) [2022-12-13 15:09:37,085 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-12-13 15:09:37,085 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-12-13 15:09:37,086 INFO L895 garLoopResultBuilder]: At program point L36-2(lines 36 44) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-12-13 15:09:37,086 INFO L899 garLoopResultBuilder]: For program point L36-3(lines 36 44) no Hoare annotation was computed. [2022-12-13 15:09:37,086 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 15:09:37,086 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-13 15:09:37,086 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-12-13 15:09:37,086 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 15:09:37,086 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-12-13 15:09:37,086 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-12-13 15:09:37,086 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-12-13 15:09:37,086 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-12-13 15:09:37,087 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-13 15:09:37,087 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 15:09:37,087 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2022-12-13 15:09:37,087 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 29) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-12-13 15:09:37,087 INFO L899 garLoopResultBuilder]: For program point L25-3(lines 25 29) no Hoare annotation was computed. [2022-12-13 15:09:37,087 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 15:09:37,087 INFO L895 garLoopResultBuilder]: At program point L38-2(lines 38 42) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-12-13 15:09:37,087 INFO L899 garLoopResultBuilder]: For program point L38-3(lines 38 42) no Hoare annotation was computed. [2022-12-13 15:09:37,087 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-12-13 15:09:37,087 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-12-13 15:09:37,088 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2022-12-13 15:09:37,088 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-12-13 15:09:37,088 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2022-12-13 15:09:37,088 INFO L895 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-12-13 15:09:37,091 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2022-12-13 15:09:37,093 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:09:37,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:09:37 BoogieIcfgContainer [2022-12-13 15:09:37,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:09:37,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:09:37,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:09:37,109 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:09:37,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:09:32" (3/4) ... [2022-12-13 15:09:37,112 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:09:37,121 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-13 15:09:37,121 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 15:09:37,122 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:09:37,122 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:09:37,149 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:09:37,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:09:37,149 INFO L158 Benchmark]: Toolchain (without parser) took 4870.37ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 140.5MB in the beginning and 132.4MB in the end (delta: 8.1MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2022-12-13 15:09:37,150 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 139.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:09:37,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.75ms. Allocated memory is still 167.8MB. Free memory was 140.5MB in the beginning and 136.8MB in the end (delta: 3.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 15:09:37,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.90ms. Allocated memory is still 167.8MB. Free memory was 136.8MB in the beginning and 134.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:09:37,150 INFO L158 Benchmark]: Boogie Preprocessor took 24.48ms. Allocated memory is still 167.8MB. Free memory was 134.9MB in the beginning and 134.0MB in the end (delta: 873.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:09:37,151 INFO L158 Benchmark]: RCFGBuilder took 247.50ms. Allocated memory is still 167.8MB. Free memory was 133.4MB in the beginning and 122.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 15:09:37,151 INFO L158 Benchmark]: TraceAbstraction took 4317.09ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 121.5MB in the beginning and 134.5MB in the end (delta: -13.0MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-12-13 15:09:37,151 INFO L158 Benchmark]: Witness Printer took 40.33ms. Allocated memory is still 201.3MB. Free memory was 134.5MB in the beginning and 132.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:09:37,153 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 139.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.75ms. Allocated memory is still 167.8MB. Free memory was 140.5MB in the beginning and 136.8MB in the end (delta: 3.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.90ms. Allocated memory is still 167.8MB. Free memory was 136.8MB in the beginning and 134.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.48ms. Allocated memory is still 167.8MB. Free memory was 134.9MB in the beginning and 134.0MB in the end (delta: 873.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 247.50ms. Allocated memory is still 167.8MB. Free memory was 133.4MB in the beginning and 122.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4317.09ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 121.5MB in the beginning and 134.5MB in the end (delta: -13.0MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Witness Printer took 40.33ms. Allocated memory is still 201.3MB. Free memory was 134.5MB in the beginning and 132.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 9, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 373 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 373 mSDsluCounter, 242 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 107 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 182 IncrementalHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 135 mSDtfsCounter, 182 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred in iteration=5, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 83 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 39 NumberOfFragments, 113 HoareAnnotationTreeSize, 6 FomulaSimplifications, 159 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 847 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 109 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 463 SizeOfPredicates, 8 NumberOfNonLiveVariables, 534 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 158/300 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((m <= 1000 && 1500 <= n) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && j <= 2147483646 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: (((((m <= 1000 && 1500 <= n) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && j <= 1499 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= i - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((m <= 1000 && 1500 <= n) && i <= 2147483646) && 0 <= j) && 0 <= i) && n <= 1500) && j <= 2147483646 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((m <= 1000 && 1500 <= n) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && j <= 2147483646 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((m <= 1000 && 1500 <= n) && i <= 2147483646) && 0 <= j) && 0 <= i) && n <= 1500) && j <= 2147483646 RESULT: Ultimate proved your program to be correct! [2022-12-13 15:09:37,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_079bfc25-0ad4-4eb3-aecf-ee654d7eeedf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE