./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS --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 2c3b9571ba66fa4feec822ae5ad361f0264abe6d66c7b617817aa135932aee0a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 03:10:18,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:10:18,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:10:18,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:10:18,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:10:18,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:10:18,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:10:18,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:10:18,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:10:18,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:10:18,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:10:18,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:10:18,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:10:18,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:10:18,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:10:18,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:10:18,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:10:18,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:10:18,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:10:18,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:10:18,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:10:18,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:10:18,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:10:18,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:10:18,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:10:18,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:10:18,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:10:18,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:10:18,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:10:18,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:10:18,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:10:18,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:10:18,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:10:18,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:10:18,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:10:18,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:10:18,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:10:18,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:10:18,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:10:18,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:10:18,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:10:18,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:10:18,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:10:18,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:10:18,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:10:18,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:10:18,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:10:18,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:10:18,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:10:18,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:10:18,358 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:10:18,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:10:18,358 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:10:18,359 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:10:18,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:10:18,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:10:18,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:10:18,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:10:18,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:10:18,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:10:18,360 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:10:18,360 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:10:18,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:10:18,360 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:10:18,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:10:18,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:10:18,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:10:18,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:10:18,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:10:18,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:10:18,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:10:18,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:10:18,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:10:18,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:10:18,362 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:10:18,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:10:18,363 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:10:18,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:10:18,363 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_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c3b9571ba66fa4feec822ae5ad361f0264abe6d66c7b617817aa135932aee0a [2022-11-23 03:10:18,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:10:18,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:10:18,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:10:18,710 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:10:18,711 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:10:18,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i [2022-11-23 03:10:21,859 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:10:22,043 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:10:22,049 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i [2022-11-23 03:10:22,055 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/data/15ee560fc/f7ea4e54c7544affbec7b475cf8ee6c1/FLAG234f25ba6 [2022-11-23 03:10:22,075 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/data/15ee560fc/f7ea4e54c7544affbec7b475cf8ee6c1 [2022-11-23 03:10:22,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:10:22,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:10:22,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:10:22,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:10:22,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:10:22,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10846d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22, skipping insertion in model container [2022-11-23 03:10:22,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:10:22,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:10:22,253 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_e4f5178f-5d30-498b-9a05-1c7be7e40924/sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i[873,886] [2022-11-23 03:10:22,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:10:22,278 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:10:22,288 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_e4f5178f-5d30-498b-9a05-1c7be7e40924/sv-benchmarks/c/loop-zilu/benchmark24_conjunctive.i[873,886] [2022-11-23 03:10:22,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:10:22,305 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:10:22,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22 WrapperNode [2022-11-23 03:10:22,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:10:22,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:10:22,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:10:22,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:10:22,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,335 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2022-11-23 03:10:22,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:10:22,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:10:22,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:10:22,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:10:22,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,354 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:10:22,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:10:22,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:10:22,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:10:22,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (1/1) ... [2022-11-23 03:10:22,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:10:22,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:22,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:22,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:10:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:10:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:10:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:10:22,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:10:22,539 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:10:22,541 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:10:22,746 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:10:22,752 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:10:22,766 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 03:10:22,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:22 BoogieIcfgContainer [2022-11-23 03:10:22,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:10:22,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:10:22,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:10:22,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:10:22,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:10:22" (1/3) ... [2022-11-23 03:10:22,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c129e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:22, skipping insertion in model container [2022-11-23 03:10:22,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:22" (2/3) ... [2022-11-23 03:10:22,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c129e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:22, skipping insertion in model container [2022-11-23 03:10:22,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:22" (3/3) ... [2022-11-23 03:10:22,785 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark24_conjunctive.i [2022-11-23 03:10:22,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:10:22,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 03:10:22,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:10:22,905 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;@4c01b6fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:10:22,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 03:10:22,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.75) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:22,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 03:10:22,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:22,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:10:22,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:22,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:22,928 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-11-23 03:10:22,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:22,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131375452] [2022-11-23 03:10:22,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:22,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:23,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:23,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:23,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131375452] [2022-11-23 03:10:23,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131375452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:23,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:23,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:10:23,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030029026] [2022-11-23 03:10:23,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:23,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:10:23,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:23,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:10:23,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:10:23,294 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.75) internal successors, (28), 24 states have internal predecessors, (28), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-11-23 03:10:23,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:23,417 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2022-11-23 03:10:23,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:10:23,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2022-11-23 03:10:23,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:23,429 INFO L225 Difference]: With dead ends: 56 [2022-11-23 03:10:23,429 INFO L226 Difference]: Without dead ends: 32 [2022-11-23 03:10:23,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:10:23,436 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:23,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 36 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:10:23,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-23 03:10:23,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2022-11-23 03:10:23,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:23,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-23 03:10:23,499 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 5 [2022-11-23 03:10:23,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:23,501 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-23 03:10:23,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-11-23 03:10:23,502 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-23 03:10:23,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 03:10:23,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:23,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:10:23,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:10:23,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:23,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:23,506 INFO L85 PathProgramCache]: Analyzing trace with hash 28695922, now seen corresponding path program 1 times [2022-11-23 03:10:23,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:23,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214107978] [2022-11-23 03:10:23,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:23,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:23,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:23,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:23,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214107978] [2022-11-23 03:10:23,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214107978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:23,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:23,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:10:23,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166346556] [2022-11-23 03:10:23,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:23,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:10:23,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:23,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:10:23,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:23,602 INFO L87 Difference]: Start difference. First operand 22 states and 23 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) [2022-11-23 03:10:23,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:23,642 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-11-23 03:10:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:10:23,643 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 [2022-11-23 03:10:23,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:23,643 INFO L225 Difference]: With dead ends: 31 [2022-11-23 03:10:23,644 INFO L226 Difference]: Without dead ends: 30 [2022-11-23 03:10:23,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:23,646 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:23,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 28 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:10:23,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-23 03:10:23,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2022-11-23 03:10:23,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6) internal successors, (24), 22 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) [2022-11-23 03:10:23,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-11-23 03:10:23,659 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2022-11-23 03:10:23,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:23,660 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-11-23 03:10:23,660 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) [2022-11-23 03:10:23,660 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-11-23 03:10:23,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 03:10:23,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:23,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:10:23,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:10:23,663 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:23,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:23,670 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2022-11-23 03:10:23,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:23,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898693070] [2022-11-23 03:10:23,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:23,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:23,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:23,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:23,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898693070] [2022-11-23 03:10:23,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898693070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:23,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:23,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:10:23,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996469462] [2022-11-23 03:10:23,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:23,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:10:23,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:23,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:10:23,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:10:23,731 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:23,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:23,758 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-11-23 03:10:23,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:10:23,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 03:10:23,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:23,759 INFO L225 Difference]: With dead ends: 23 [2022-11-23 03:10:23,760 INFO L226 Difference]: Without dead ends: 22 [2022-11-23 03:10:23,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:10:23,761 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:23,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 20 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:10:23,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-23 03:10:23,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-23 03:10:23,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:23,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-23 03:10:23,766 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 6 [2022-11-23 03:10:23,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:23,766 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-23 03:10:23,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:23,767 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-23 03:10:23,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 03:10:23,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:23,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:10:23,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:10:23,768 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:23,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:23,769 INFO L85 PathProgramCache]: Analyzing trace with hash 889573643, now seen corresponding path program 1 times [2022-11-23 03:10:23,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:23,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119065888] [2022-11-23 03:10:23,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:23,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:23,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:23,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:23,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119065888] [2022-11-23 03:10:23,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119065888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:23,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:23,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:10:23,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280573713] [2022-11-23 03:10:23,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:23,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:10:23,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:23,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:10:23,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:10:23,826 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:23,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:23,872 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2022-11-23 03:10:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:10:23,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 03:10:23,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:23,873 INFO L225 Difference]: With dead ends: 29 [2022-11-23 03:10:23,873 INFO L226 Difference]: Without dead ends: 28 [2022-11-23 03:10:23,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:10:23,875 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:23,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 26 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:10:23,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-23 03:10:23,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2022-11-23 03:10:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.5) internal successors, (24), 22 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) [2022-11-23 03:10:23,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-11-23 03:10:23,880 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 6 [2022-11-23 03:10:23,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:23,880 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-11-23 03:10:23,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:23,880 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-11-23 03:10:23,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 03:10:23,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:23,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:23,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:10:23,883 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:23,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:23,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-11-23 03:10:23,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:23,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959787518] [2022-11-23 03:10:23,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:23,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:23,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:23,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959787518] [2022-11-23 03:10:23,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959787518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:23,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:23,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:10:23,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657561299] [2022-11-23 03:10:23,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:23,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:10:23,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:23,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:10:23,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:23,954 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:23,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:23,973 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-11-23 03:10:23,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:10:23,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-23 03:10:23,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:23,975 INFO L225 Difference]: With dead ends: 23 [2022-11-23 03:10:23,976 INFO L226 Difference]: Without dead ends: 22 [2022-11-23 03:10:23,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:23,979 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:23,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 13 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:10:23,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-23 03:10:23,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-23 03:10:23,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.4375) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-23 03:10:23,997 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2022-11-23 03:10:23,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:23,997 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-23 03:10:23,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:23,997 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-23 03:10:23,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 03:10:23,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:23,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:23,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:10:23,999 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:23,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:24,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1806979220, now seen corresponding path program 1 times [2022-11-23 03:10:24,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:24,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716871581] [2022-11-23 03:10:24,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:24,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:24,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:24,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716871581] [2022-11-23 03:10:24,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716871581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:24,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:24,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:10:24,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58758864] [2022-11-23 03:10:24,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:24,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:10:24,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:24,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:10:24,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:24,056 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:24,068 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-23 03:10:24,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:10:24,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-23 03:10:24,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:24,069 INFO L225 Difference]: With dead ends: 22 [2022-11-23 03:10:24,069 INFO L226 Difference]: Without dead ends: 21 [2022-11-23 03:10:24,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:24,073 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:24,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 14 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:10:24,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-23 03:10:24,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-23 03:10:24,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-11-23 03:10:24,078 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2022-11-23 03:10:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:24,078 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-11-23 03:10:24,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-11-23 03:10:24,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 03:10:24,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:24,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:24,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:10:24,080 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)] === [2022-11-23 03:10:24,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:24,080 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2022-11-23 03:10:24,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:24,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952864086] [2022-11-23 03:10:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:24,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:24,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:24,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:24,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952864086] [2022-11-23 03:10:24,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952864086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:24,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:24,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:10:24,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609734106] [2022-11-23 03:10:24,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:24,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:10:24,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:24,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:10:24,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:24,112 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:24,126 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-11-23 03:10:24,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:10:24,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-23 03:10:24,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:24,127 INFO L225 Difference]: With dead ends: 28 [2022-11-23 03:10:24,128 INFO L226 Difference]: Without dead ends: 27 [2022-11-23 03:10:24,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:24,129 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:24,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 23 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:10:24,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-23 03:10:24,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-11-23 03:10:24,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-11-23 03:10:24,134 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 8 [2022-11-23 03:10:24,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:24,134 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-11-23 03:10:24,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,135 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-11-23 03:10:24,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 03:10:24,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:24,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:24,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:10:24,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:24,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:24,137 INFO L85 PathProgramCache]: Analyzing trace with hash 181781037, now seen corresponding path program 1 times [2022-11-23 03:10:24,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:24,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382103844] [2022-11-23 03:10:24,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:24,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:24,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:24,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382103844] [2022-11-23 03:10:24,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382103844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:24,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:24,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:10:24,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974658531] [2022-11-23 03:10:24,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:24,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:10:24,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:24,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:10:24,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:24,165 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:24,173 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-11-23 03:10:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:10:24,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-23 03:10:24,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:24,174 INFO L225 Difference]: With dead ends: 24 [2022-11-23 03:10:24,174 INFO L226 Difference]: Without dead ends: 19 [2022-11-23 03:10:24,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:10:24,175 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:24,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 13 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:10:24,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-23 03:10:24,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-23 03:10:24,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-11-23 03:10:24,180 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 8 [2022-11-23 03:10:24,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:24,180 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-11-23 03:10:24,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,180 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-11-23 03:10:24,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 03:10:24,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:24,181 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:24,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:10:24,182 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:24,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2022-11-23 03:10:24,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:24,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340771539] [2022-11-23 03:10:24,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:24,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:24,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:24,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340771539] [2022-11-23 03:10:24,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340771539] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:10:24,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772725423] [2022-11-23 03:10:24,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:24,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:24,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:24,294 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:10:24,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:10:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:24,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:10:24,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:24,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:24,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:10:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:24,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772725423] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:10:24,485 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:10:24,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-23 03:10:24,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022771180] [2022-11-23 03:10:24,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:10:24,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:10:24,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:24,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:10:24,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:10:24,487 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:24,684 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-11-23 03:10:24,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:10:24,685 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 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 [2022-11-23 03:10:24,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:24,687 INFO L225 Difference]: With dead ends: 41 [2022-11-23 03:10:24,688 INFO L226 Difference]: Without dead ends: 39 [2022-11-23 03:10:24,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:10:24,691 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 36 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:24,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 37 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:10:24,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-23 03:10:24,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2022-11-23 03:10:24,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-11-23 03:10:24,699 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 10 [2022-11-23 03:10:24,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:24,699 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-11-23 03:10:24,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:24,700 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-11-23 03:10:24,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 03:10:24,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:24,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:24,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:24,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:24,907 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:24,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:24,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1472764863, now seen corresponding path program 1 times [2022-11-23 03:10:24,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:24,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804123239] [2022-11-23 03:10:24,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:24,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:25,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:25,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804123239] [2022-11-23 03:10:25,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804123239] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:10:25,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104681731] [2022-11-23 03:10:25,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:25,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:25,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:25,043 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:10:25,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:10:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:25,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:10:25,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:25,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:10:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:25,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104681731] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:10:25,363 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:10:25,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-11-23 03:10:25,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744540803] [2022-11-23 03:10:25,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:10:25,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 03:10:25,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:25,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 03:10:25,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:10:25,366 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:25,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:25,517 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-11-23 03:10:25,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:10:25,517 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 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 11 [2022-11-23 03:10:25,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:25,518 INFO L225 Difference]: With dead ends: 37 [2022-11-23 03:10:25,518 INFO L226 Difference]: Without dead ends: 33 [2022-11-23 03:10:25,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2022-11-23 03:10:25,527 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 30 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:25,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 18 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:10:25,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-23 03:10:25,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2022-11-23 03:10:25,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:25,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-11-23 03:10:25,534 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 11 [2022-11-23 03:10:25,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:25,534 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-11-23 03:10:25,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:25,535 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-11-23 03:10:25,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 03:10:25,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:25,535 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-23 03:10:25,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:25,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 03:10:25,743 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:25,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:25,744 INFO L85 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2022-11-23 03:10:25,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:25,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108443623] [2022-11-23 03:10:25,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:25,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:25,800 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:25,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:25,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108443623] [2022-11-23 03:10:25,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108443623] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:10:25,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589908779] [2022-11-23 03:10:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:25,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:25,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:25,803 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:10:25,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:10:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:25,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:10:25,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:25,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:10:25,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:25,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589908779] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:10:25,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:10:25,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-23 03:10:25,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168782333] [2022-11-23 03:10:25,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:10:25,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:10:25,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:25,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:10:25,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:10:25,902 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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) [2022-11-23 03:10:25,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:25,931 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2022-11-23 03:10:25,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:10:25,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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) Word has length 13 [2022-11-23 03:10:25,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:25,933 INFO L225 Difference]: With dead ends: 41 [2022-11-23 03:10:25,933 INFO L226 Difference]: Without dead ends: 40 [2022-11-23 03:10:25,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:10:25,935 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:25,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 34 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:10:25,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-23 03:10:25,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2022-11-23 03:10:25,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:25,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-11-23 03:10:25,956 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 13 [2022-11-23 03:10:25,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:25,957 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-11-23 03:10:25,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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) [2022-11-23 03:10:25,957 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-11-23 03:10:25,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 03:10:25,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:25,959 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-23 03:10:25,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:26,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-23 03:10:26,164 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:26,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:26,165 INFO L85 PathProgramCache]: Analyzing trace with hash 487275762, now seen corresponding path program 1 times [2022-11-23 03:10:26,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:26,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456843706] [2022-11-23 03:10:26,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:26,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:26,293 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:26,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:26,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456843706] [2022-11-23 03:10:26,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456843706] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:10:26,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936411183] [2022-11-23 03:10:26,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:26,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:26,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:26,297 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:10:26,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:10:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:26,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:10:26,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:26,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:26,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:10:26,619 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:26,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936411183] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:10:26,619 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:10:26,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-11-23 03:10:26,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852626969] [2022-11-23 03:10:26,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:10:26,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-23 03:10:26,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:26,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-23 03:10:26,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:10:26,624 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 18 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:26,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:26,849 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-11-23 03:10:26,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:10:26,850 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 18 states have internal predecessors, (35), 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 15 [2022-11-23 03:10:26,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:26,850 INFO L225 Difference]: With dead ends: 35 [2022-11-23 03:10:26,850 INFO L226 Difference]: Without dead ends: 32 [2022-11-23 03:10:26,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2022-11-23 03:10:26,851 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 46 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:26,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 10 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:10:26,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-23 03:10:26,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-23 03:10:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.1) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-11-23 03:10:26,857 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 15 [2022-11-23 03:10:26,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:26,857 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-11-23 03:10:26,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 18 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:26,857 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-11-23 03:10:26,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 03:10:26,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:26,858 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:26,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:27,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-23 03:10:27,075 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:27,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:27,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1032299713, now seen corresponding path program 2 times [2022-11-23 03:10:27,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:27,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211254214] [2022-11-23 03:10:27,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:27,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:27,256 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:27,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:27,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211254214] [2022-11-23 03:10:27,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211254214] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:10:27,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221584272] [2022-11-23 03:10:27,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:10:27,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:27,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:27,258 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:10:27,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:10:27,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:10:27,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:10:27,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 03:10:27,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:27,553 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:27,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:10:27,871 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:27,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221584272] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:10:27,872 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:10:27,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 31 [2022-11-23 03:10:27,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322058975] [2022-11-23 03:10:27,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:10:27,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-23 03:10:27,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:27,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-23 03:10:27,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:10:27,876 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 32 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:28,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:28,377 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2022-11-23 03:10:28,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-23 03:10:28,378 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-23 03:10:28,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:28,379 INFO L225 Difference]: With dead ends: 50 [2022-11-23 03:10:28,379 INFO L226 Difference]: Without dead ends: 45 [2022-11-23 03:10:28,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=447, Invalid=1359, Unknown=0, NotChecked=0, Total=1806 [2022-11-23 03:10:28,380 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 62 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:28,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 21 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:10:28,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-23 03:10:28,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2022-11-23 03:10:28,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 42 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:28,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2022-11-23 03:10:28,389 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 21 [2022-11-23 03:10:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:28,390 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2022-11-23 03:10:28,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:28,390 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2022-11-23 03:10:28,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 03:10:28,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:28,391 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1] [2022-11-23 03:10:28,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:28,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:28,597 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:28,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:28,597 INFO L85 PathProgramCache]: Analyzing trace with hash -765261969, now seen corresponding path program 2 times [2022-11-23 03:10:28,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:28,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670310803] [2022-11-23 03:10:28,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:28,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:28,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:28,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670310803] [2022-11-23 03:10:28,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670310803] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:10:28,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019770286] [2022-11-23 03:10:28,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:10:28,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:28,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:28,668 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:10:28,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:10:28,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:10:28,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:10:28,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 03:10:28,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:28,788 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:28,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:10:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:28,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019770286] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:10:28,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:10:28,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-23 03:10:28,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375536585] [2022-11-23 03:10:28,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:10:28,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:10:28,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:28,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:10:28,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:10:28,879 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:28,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:28,941 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2022-11-23 03:10:28,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:10:28,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 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 28 [2022-11-23 03:10:28,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:28,944 INFO L225 Difference]: With dead ends: 72 [2022-11-23 03:10:28,944 INFO L226 Difference]: Without dead ends: 71 [2022-11-23 03:10:28,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:10:28,945 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:28,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 43 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:10:28,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-23 03:10:28,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 62. [2022-11-23 03:10:28,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.0833333333333333) internal successors, (65), 61 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2022-11-23 03:10:28,965 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 28 [2022-11-23 03:10:28,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:28,965 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2022-11-23 03:10:28,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2022-11-23 03:10:28,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-23 03:10:28,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:28,968 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:28,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-23 03:10:29,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:29,175 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:29,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:29,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1695303105, now seen corresponding path program 3 times [2022-11-23 03:10:29,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:29,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793966051] [2022-11-23 03:10:29,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:29,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:29,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:29,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793966051] [2022-11-23 03:10:29,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793966051] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:10:29,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608552809] [2022-11-23 03:10:29,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:10:29,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:29,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:29,523 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:10:29,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 03:10:29,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-23 03:10:29,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:10:29,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-23 03:10:29,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:30,194 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:30,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:10:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:31,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608552809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:10:31,114 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:10:31,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 24, 24] total 63 [2022-11-23 03:10:31,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383849432] [2022-11-23 03:10:31,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:10:31,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-23 03:10:31,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:31,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-23 03:10:31,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=805, Invalid=3227, Unknown=0, NotChecked=0, Total=4032 [2022-11-23 03:10:31,119 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand has 64 states, 63 states have (on average 1.8571428571428572) internal successors, (117), 64 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:33,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:33,163 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2022-11-23 03:10:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-23 03:10:33,164 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 1.8571428571428572) internal successors, (117), 64 states have internal predecessors, (117), 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 41 [2022-11-23 03:10:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:33,165 INFO L225 Difference]: With dead ends: 92 [2022-11-23 03:10:33,165 INFO L226 Difference]: Without dead ends: 87 [2022-11-23 03:10:33,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3268 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1829, Invalid=6361, Unknown=0, NotChecked=0, Total=8190 [2022-11-23 03:10:33,169 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 289 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:33,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 30 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:10:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-23 03:10:33,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2022-11-23 03:10:33,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 81 states have (on average 1.0740740740740742) internal successors, (87), 82 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:33,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2022-11-23 03:10:33,188 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 41 [2022-11-23 03:10:33,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:33,189 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2022-11-23 03:10:33,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 1.8571428571428572) internal successors, (117), 64 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:33,189 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2022-11-23 03:10:33,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 03:10:33,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:33,196 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1] [2022-11-23 03:10:33,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:33,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-23 03:10:33,407 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:33,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:33,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1275640047, now seen corresponding path program 3 times [2022-11-23 03:10:33,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:33,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743964509] [2022-11-23 03:10:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:33,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:33,664 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:33,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:33,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743964509] [2022-11-23 03:10:33,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743964509] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:10:33,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067846537] [2022-11-23 03:10:33,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:10:33,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:33,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:33,667 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:10:33,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 03:10:33,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-23 03:10:33,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:10:33,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 03:10:33,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:33,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:10:34,075 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:34,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067846537] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:10:34,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:10:34,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-23 03:10:34,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388397088] [2022-11-23 03:10:34,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:10:34,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-23 03:10:34,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:34,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-23 03:10:34,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:10:34,078 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:34,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:34,191 INFO L93 Difference]: Finished difference Result 144 states and 155 transitions. [2022-11-23 03:10:34,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 03:10:34,192 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 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 58 [2022-11-23 03:10:34,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:34,193 INFO L225 Difference]: With dead ends: 144 [2022-11-23 03:10:34,193 INFO L226 Difference]: Without dead ends: 143 [2022-11-23 03:10:34,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:10:34,194 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:34,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 84 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:10:34,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-11-23 03:10:34,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 122. [2022-11-23 03:10:34,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 1.075) internal successors, (129), 121 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:34,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 129 transitions. [2022-11-23 03:10:34,206 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 129 transitions. Word has length 58 [2022-11-23 03:10:34,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:34,207 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 129 transitions. [2022-11-23 03:10:34,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 129 transitions. [2022-11-23 03:10:34,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-23 03:10:34,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:34,208 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:34,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:34,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-23 03:10:34,414 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:34,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:34,414 INFO L85 PathProgramCache]: Analyzing trace with hash 477755455, now seen corresponding path program 4 times [2022-11-23 03:10:34,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:34,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035126152] [2022-11-23 03:10:34,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:34,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:35,621 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:35,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:35,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035126152] [2022-11-23 03:10:35,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035126152] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:10:35,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626610512] [2022-11-23 03:10:35,621 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:10:35,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:35,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:35,624 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:10:35,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 03:10:35,713 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:10:35,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:10:35,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-23 03:10:35,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:37,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:10:40,408 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:40,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626610512] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:10:40,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:10:40,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 48, 48] total 127 [2022-11-23 03:10:40,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663925102] [2022-11-23 03:10:40,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:10:40,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2022-11-23 03:10:40,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:40,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2022-11-23 03:10:40,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2961, Invalid=13295, Unknown=0, NotChecked=0, Total=16256 [2022-11-23 03:10:40,419 INFO L87 Difference]: Start difference. First operand 122 states and 129 transitions. Second operand has 128 states, 127 states have (on average 1.8661417322834646) internal successors, (237), 128 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:49,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:49,638 INFO L93 Difference]: Finished difference Result 176 states and 191 transitions. [2022-11-23 03:10:49,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-23 03:10:49,639 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 1.8661417322834646) internal successors, (237), 128 states have internal predecessors, (237), 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 81 [2022-11-23 03:10:49,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:49,640 INFO L225 Difference]: With dead ends: 176 [2022-11-23 03:10:49,640 INFO L226 Difference]: Without dead ends: 171 [2022-11-23 03:10:49,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14744 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=7329, Invalid=27453, Unknown=0, NotChecked=0, Total=34782 [2022-11-23 03:10:49,648 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 866 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 2834 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 3563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 2834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:49,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 59 Invalid, 3563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 2834 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 03:10:49,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-23 03:10:49,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 163. [2022-11-23 03:10:49,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 161 states have (on average 1.062111801242236) internal successors, (171), 162 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:49,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 171 transitions. [2022-11-23 03:10:49,666 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 171 transitions. Word has length 81 [2022-11-23 03:10:49,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:49,668 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 171 transitions. [2022-11-23 03:10:49,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 1.8661417322834646) internal successors, (237), 128 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:49,668 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 171 transitions. [2022-11-23 03:10:49,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-23 03:10:49,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:49,671 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1] [2022-11-23 03:10:49,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:49,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-23 03:10:49,876 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:49,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:49,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2025143279, now seen corresponding path program 4 times [2022-11-23 03:10:49,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:49,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381360320] [2022-11-23 03:10:49,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:49,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:50,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:50,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:50,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381360320] [2022-11-23 03:10:50,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381360320] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:10:50,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097107754] [2022-11-23 03:10:50,623 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:10:50,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:50,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:50,625 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:10:50,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 03:10:50,713 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:10:50,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:10:50,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-23 03:10:50,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:50,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:50,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:10:51,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:51,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097107754] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:10:51,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:10:51,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-23 03:10:51,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207630805] [2022-11-23 03:10:51,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:10:51,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-23 03:10:51,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:51,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-23 03:10:51,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 03:10:51,814 INFO L87 Difference]: Start difference. First operand 163 states and 171 transitions. Second operand has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:52,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:52,061 INFO L93 Difference]: Finished difference Result 288 states and 311 transitions. [2022-11-23 03:10:52,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-23 03:10:52,062 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 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 118 [2022-11-23 03:10:52,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:10:52,063 INFO L225 Difference]: With dead ends: 288 [2022-11-23 03:10:52,063 INFO L226 Difference]: Without dead ends: 287 [2022-11-23 03:10:52,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 03:10:52,065 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 123 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:10:52,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 141 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:10:52,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-11-23 03:10:52,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 242. [2022-11-23 03:10:52,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 240 states have (on average 1.0708333333333333) internal successors, (257), 241 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 257 transitions. [2022-11-23 03:10:52,087 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 257 transitions. Word has length 118 [2022-11-23 03:10:52,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:10:52,087 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 257 transitions. [2022-11-23 03:10:52,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 257 transitions. [2022-11-23 03:10:52,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-23 03:10:52,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:52,096 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:52,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:52,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-23 03:10:52,301 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:10:52,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:52,302 INFO L85 PathProgramCache]: Analyzing trace with hash -758877121, now seen corresponding path program 5 times [2022-11-23 03:10:52,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:52,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883303762] [2022-11-23 03:10:52,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:52,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:55,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:55,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883303762] [2022-11-23 03:10:55,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883303762] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:10:55,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440117744] [2022-11-23 03:10:55,656 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 03:10:55,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:10:55,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:55,657 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:10:55,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 03:10:55,776 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-11-23 03:10:55,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:10:55,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-23 03:10:55,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:11:01,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:11:01,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:11:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:11:10,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440117744] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:11:10,879 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:11:10,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 96, 96] total 255 [2022-11-23 03:11:10,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359992267] [2022-11-23 03:11:10,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:11:10,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2022-11-23 03:11:10,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:11:10,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2022-11-23 03:11:10,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11305, Invalid=53975, Unknown=0, NotChecked=0, Total=65280 [2022-11-23 03:11:10,890 INFO L87 Difference]: Start difference. First operand 242 states and 257 transitions. Second operand has 256 states, 255 states have (on average 1.8705882352941177) internal successors, (477), 256 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:12:00,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:12:00,005 INFO L93 Difference]: Finished difference Result 344 states and 375 transitions. [2022-11-23 03:12:00,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-11-23 03:12:00,006 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 255 states have (on average 1.8705882352941177) internal successors, (477), 256 states have internal predecessors, (477), 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 161 [2022-11-23 03:12:00,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:12:00,007 INFO L225 Difference]: With dead ends: 344 [2022-11-23 03:12:00,007 INFO L226 Difference]: Without dead ends: 339 [2022-11-23 03:12:00,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62464 ImplicationChecksByTransitivity, 57.9s TimeCoverageRelationStatistics Valid=29273, Invalid=113989, Unknown=0, NotChecked=0, Total=143262 [2022-11-23 03:12:00,018 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2582 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 9741 mSolverCounterSat, 2816 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 12557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2816 IncrementalHoareTripleChecker+Valid, 9741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:12:00,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2582 Valid, 108 Invalid, 12557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2816 Valid, 9741 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 03:12:00,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-23 03:12:00,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 323. [2022-11-23 03:12:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 321 states have (on average 1.0560747663551402) internal successors, (339), 322 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:12:00,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 339 transitions. [2022-11-23 03:12:00,055 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 339 transitions. Word has length 161 [2022-11-23 03:12:00,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:12:00,055 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 339 transitions. [2022-11-23 03:12:00,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 255 states have (on average 1.8705882352941177) internal successors, (477), 256 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:12:00,056 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 339 transitions. [2022-11-23 03:12:00,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-23 03:12:00,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:12:00,059 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1] [2022-11-23 03:12:00,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 03:12:00,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:12:00,263 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:12:00,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:12:00,264 INFO L85 PathProgramCache]: Analyzing trace with hash -399326737, now seen corresponding path program 5 times [2022-11-23 03:12:00,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:12:00,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819195408] [2022-11-23 03:12:00,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:12:00,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:12:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:12:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:12:02,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:12:02,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819195408] [2022-11-23 03:12:02,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819195408] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:12:02,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010346242] [2022-11-23 03:12:02,189 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-23 03:12:02,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:12:02,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:12:02,190 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:12:02,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 03:12:02,366 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-23 03:12:02,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:12:02,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-23 03:12:02,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:12:02,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:12:02,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:12:05,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:12:05,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010346242] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:12:05,767 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:12:05,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-11-23 03:12:05,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793563643] [2022-11-23 03:12:05,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:12:05,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-23 03:12:05,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:12:05,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-23 03:12:05,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-23 03:12:05,771 INFO L87 Difference]: Start difference. First operand 323 states and 339 transitions. Second operand has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:12:06,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:12:06,420 INFO L93 Difference]: Finished difference Result 576 states and 623 transitions. [2022-11-23 03:12:06,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-23 03:12:06,421 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 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 238 [2022-11-23 03:12:06,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:12:06,423 INFO L225 Difference]: With dead ends: 576 [2022-11-23 03:12:06,423 INFO L226 Difference]: Without dead ends: 575 [2022-11-23 03:12:06,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-11-23 03:12:06,425 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 390 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:12:06,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 273 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:12:06,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-11-23 03:12:06,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 482. [2022-11-23 03:12:06,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 480 states have (on average 1.06875) internal successors, (513), 481 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:12:06,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 513 transitions. [2022-11-23 03:12:06,483 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 513 transitions. Word has length 238 [2022-11-23 03:12:06,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:12:06,483 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 513 transitions. [2022-11-23 03:12:06,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:12:06,484 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 513 transitions. [2022-11-23 03:12:06,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-23 03:12:06,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:12:06,488 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1] [2022-11-23 03:12:06,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-23 03:12:06,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:12:06,699 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:12:06,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:12:06,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1806603201, now seen corresponding path program 6 times [2022-11-23 03:12:06,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:12:06,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113706976] [2022-11-23 03:12:06,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:12:06,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:12:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:12:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:12:19,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:12:19,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113706976] [2022-11-23 03:12:19,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113706976] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:12:19,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793643766] [2022-11-23 03:12:19,360 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 03:12:19,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:12:19,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:12:19,361 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:12:19,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-23 03:12:19,605 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2022-11-23 03:12:19,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:12:19,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 193 conjunts are in the unsatisfiable core [2022-11-23 03:12:19,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:12:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:12:37,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:13:15,136 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:13:15,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793643766] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:13:15,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:13:15,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 192, 192] total 511 [2022-11-23 03:13:15,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254216158] [2022-11-23 03:13:15,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:13:15,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 512 states [2022-11-23 03:13:15,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:13:15,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 512 interpolants. [2022-11-23 03:13:15,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44121, Invalid=217511, Unknown=0, NotChecked=0, Total=261632 [2022-11-23 03:13:15,167 INFO L87 Difference]: Start difference. First operand 482 states and 513 transitions. Second operand has 512 states, 511 states have (on average 1.8727984344422701) internal successors, (957), 512 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:28,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:28,173 INFO L93 Difference]: Finished difference Result 680 states and 743 transitions. [2022-11-23 03:18:28,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-11-23 03:18:28,174 INFO L78 Accepts]: Start accepts. Automaton has has 512 states, 511 states have (on average 1.8727984344422701) internal successors, (957), 512 states have internal predecessors, (957), 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 321 [2022-11-23 03:18:28,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:28,177 INFO L225 Difference]: With dead ends: 680 [2022-11-23 03:18:28,177 INFO L226 Difference]: Without dead ends: 675 [2022-11-23 03:18:28,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1083 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 761 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256976 ImplicationChecksByTransitivity, 347.4s TimeCoverageRelationStatistics Valid=116937, Invalid=464469, Unknown=0, NotChecked=0, Total=581406 [2022-11-23 03:18:28,207 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9928 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 34307 mSolverCounterSat, 11468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9928 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 45775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11468 IncrementalHoareTripleChecker+Valid, 34307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:28,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9928 Valid, 223 Invalid, 45775 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11468 Valid, 34307 Invalid, 0 Unknown, 0 Unchecked, 21.0s Time] [2022-11-23 03:18:28,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-11-23 03:18:28,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 643. [2022-11-23 03:18:28,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 641 states have (on average 1.0530421216848673) internal successors, (675), 642 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:28,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 675 transitions. [2022-11-23 03:18:28,308 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 675 transitions. Word has length 321 [2022-11-23 03:18:28,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:28,309 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 675 transitions. [2022-11-23 03:18:28,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 512 states, 511 states have (on average 1.8727984344422701) internal successors, (957), 512 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:28,310 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 675 transitions. [2022-11-23 03:18:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-11-23 03:18:28,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:28,320 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 1, 1, 1, 1] [2022-11-23 03:18:28,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-23 03:18:28,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:28,527 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:18:28,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:28,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1421856239, now seen corresponding path program 6 times [2022-11-23 03:18:28,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:28,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661898866] [2022-11-23 03:18:28,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:28,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:18:35,533 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:35,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:18:35,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661898866] [2022-11-23 03:18:35,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661898866] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:18:35,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402432351] [2022-11-23 03:18:35,534 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-23 03:18:35,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:35,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:18:35,535 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:18:35,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-23 03:18:35,954 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-11-23 03:18:35,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:18:35,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-23 03:18:35,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:18:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:36,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:18:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:18:48,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402432351] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:18:48,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:18:48,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-11-23 03:18:48,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741435169] [2022-11-23 03:18:48,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:18:48,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-23 03:18:48,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:18:48,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-23 03:18:48,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-23 03:18:48,099 INFO L87 Difference]: Start difference. First operand 643 states and 675 transitions. Second operand has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:50,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:18:50,393 INFO L93 Difference]: Finished difference Result 1152 states and 1247 transitions. [2022-11-23 03:18:50,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-23 03:18:50,397 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 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 478 [2022-11-23 03:18:50,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:18:50,401 INFO L225 Difference]: With dead ends: 1152 [2022-11-23 03:18:50,401 INFO L226 Difference]: Without dead ends: 1151 [2022-11-23 03:18:50,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 860 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-11-23 03:18:50,404 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 624 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:18:50,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 528 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 03:18:50,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2022-11-23 03:18:50,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 962. [2022-11-23 03:18:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 960 states have (on average 1.0677083333333333) internal successors, (1025), 961 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:50,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1025 transitions. [2022-11-23 03:18:50,539 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1025 transitions. Word has length 478 [2022-11-23 03:18:50,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:18:50,540 INFO L495 AbstractCegarLoop]: Abstraction has 962 states and 1025 transitions. [2022-11-23 03:18:50,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:18:50,540 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1025 transitions. [2022-11-23 03:18:50,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2022-11-23 03:18:50,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:18:50,545 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 127, 1, 1, 1, 1, 1, 1] [2022-11-23 03:18:50,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-23 03:18:50,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:18:50,752 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:18:50,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:18:50,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1421124545, now seen corresponding path program 7 times [2022-11-23 03:18:50,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:18:50,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123885406] [2022-11-23 03:18:50,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:18:50,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:18:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:19:45,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:19:45,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123885406] [2022-11-23 03:19:45,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123885406] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:19:45,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263540744] [2022-11-23 03:19:45,899 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 03:19:45,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:19:45,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:19:45,900 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:19:45,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f5178f-5d30-498b-9a05-1c7be7e40924/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-23 03:19:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:19:46,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 385 conjunts are in the unsatisfiable core [2022-11-23 03:19:46,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:20:54,008 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:20:54,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:23:23,461 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:23:23,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263540744] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:23:23,461 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:23:23,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [258, 384, 384] total 1023 [2022-11-23 03:23:23,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628968905] [2022-11-23 03:23:23,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:23:23,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 1024 states [2022-11-23 03:23:23,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:23:23,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1024 interpolants. [2022-11-23 03:23:23,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174265, Invalid=873287, Unknown=0, NotChecked=0, Total=1047552 [2022-11-23 03:23:23,526 INFO L87 Difference]: Start difference. First operand 962 states and 1025 transitions. Second operand has 1024 states, 1023 states have (on average 1.8739002932551319) internal successors, (1917), 1024 states have internal predecessors, (1917), 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)