./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark03_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark03_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36118893e72f01ac34f08ae30ac9eb83d0074096398f7228653cb15beb7a3f4b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:57:06,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:57:06,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:57:06,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:57:06,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:57:06,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:57:06,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:57:06,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:57:06,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:57:06,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:57:06,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:57:06,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:57:06,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:57:06,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:57:06,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:57:06,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:57:06,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:57:06,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:57:06,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:57:06,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:57:06,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:57:06,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:57:06,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:57:06,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:57:06,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:57:06,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:57:06,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:57:06,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:57:06,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:57:06,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:57:06,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:57:06,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:57:06,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:57:06,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:57:06,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:57:06,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:57:06,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:57:06,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:57:06,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:57:06,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:57:06,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:57:06,523 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 16:57:06,583 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:57:06,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:57:06,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:57:06,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:57:06,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:57:06,595 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:57:06,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:57:06,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:57:06,597 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:57:06,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:57:06,599 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:57:06,599 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:57:06,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:57:06,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:57:06,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:57:06,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:57:06,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:57:06,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:57:06,601 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:57:06,602 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:57:06,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:57:06,602 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:57:06,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:57:06,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:57:06,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:57:06,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:57:06,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:57:06,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:57:06,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:57:06,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:57:06,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:57:06,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:57:06,607 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:57:06,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:57:06,607 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:57:06,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:57:06,608 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_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36118893e72f01ac34f08ae30ac9eb83d0074096398f7228653cb15beb7a3f4b [2022-11-25 16:57:06,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:57:06,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:57:06,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:57:06,997 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:57:06,998 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:57:07,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2022-11-25 16:57:10,897 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:57:11,137 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:57:11,139 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2022-11-25 16:57:11,147 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/data/b282b5a9a/76079d176f9040809a51e2e7cef7a250/FLAGfb21d5744 [2022-11-25 16:57:11,166 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/data/b282b5a9a/76079d176f9040809a51e2e7cef7a250 [2022-11-25 16:57:11,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:57:11,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:57:11,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:57:11,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:57:11,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:57:11,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd02f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11, skipping insertion in model container [2022-11-25 16:57:11,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:57:11,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:57:11,393 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_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/sv-benchmarks/c/loop-zilu/benchmark03_linear.i[868,881] [2022-11-25 16:57:11,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:57:11,420 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:57:11,436 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_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/sv-benchmarks/c/loop-zilu/benchmark03_linear.i[868,881] [2022-11-25 16:57:11,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:57:11,456 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:57:11,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11 WrapperNode [2022-11-25 16:57:11,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:57:11,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:57:11,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:57:11,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:57:11,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,495 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-11-25 16:57:11,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:57:11,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:57:11,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:57:11,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:57:11,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,520 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:57:11,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:57:11,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:57:11,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:57:11,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (1/1) ... [2022-11-25 16:57:11,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:57:11,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:11,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:57:11,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:57:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:57:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:57:11,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:57:11,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:57:11,735 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:57:11,738 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:57:12,021 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:57:12,029 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:57:12,029 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 16:57:12,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:12 BoogieIcfgContainer [2022-11-25 16:57:12,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:57:12,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:57:12,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:57:12,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:57:12,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:57:11" (1/3) ... [2022-11-25 16:57:12,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458c3d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:57:12, skipping insertion in model container [2022-11-25 16:57:12,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:11" (2/3) ... [2022-11-25 16:57:12,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458c3d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:57:12, skipping insertion in model container [2022-11-25 16:57:12,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:12" (3/3) ... [2022-11-25 16:57:12,043 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark03_linear.i [2022-11-25 16:57:12,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:57:12,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-25 16:57:12,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:57:12,142 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;@61a45e27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:57:12,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-25 16:57:12,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.75) internal successors, (35), 30 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) [2022-11-25 16:57:12,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 16:57:12,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:12,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 16:57:12,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:12,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:12,166 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-11-25 16:57:12,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:12,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482803349] [2022-11-25 16:57:12,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:12,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:12,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:12,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:12,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482803349] [2022-11-25 16:57:12,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482803349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:12,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:12,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:57:12,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353561366] [2022-11-25 16:57:12,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:12,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:57:12,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:12,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:57:12,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:57:12,563 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.75) internal successors, (35), 30 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) 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) [2022-11-25 16:57:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:12,680 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-25 16:57:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:57:12,684 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 [2022-11-25 16:57:12,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:12,695 INFO L225 Difference]: With dead ends: 48 [2022-11-25 16:57:12,695 INFO L226 Difference]: Without dead ends: 28 [2022-11-25 16:57:12,699 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 [2022-11-25 16:57:12,713 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:12,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 81 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:12,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-25 16:57:12,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-25 16:57:12,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:12,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-11-25 16:57:12,804 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 5 [2022-11-25 16:57:12,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:12,806 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-11-25 16:57:12,807 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) [2022-11-25 16:57:12,807 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-11-25 16:57:12,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 16:57:12,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:12,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:12,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:57:12,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:12,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:12,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-11-25 16:57:12,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:12,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240667673] [2022-11-25 16:57:12,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:12,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:13,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:13,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240667673] [2022-11-25 16:57:13,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240667673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:13,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:13,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:57:13,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784217152] [2022-11-25 16:57:13,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:13,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:57:13,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:13,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:57:13,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:57:13,046 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-25 16:57:13,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:13,120 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-11-25 16:57:13,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:57:13,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2022-11-25 16:57:13,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:13,122 INFO L225 Difference]: With dead ends: 32 [2022-11-25 16:57:13,122 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 16:57:13,123 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 [2022-11-25 16:57:13,125 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:13,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 61 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:13,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 16:57:13,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-25 16:57:13,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:13,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-11-25 16:57:13,140 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2022-11-25 16:57:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:13,140 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-11-25 16:57:13,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-11-25 16:57:13,141 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-11-25 16:57:13,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 16:57:13,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:13,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:13,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:57:13,142 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:13,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:13,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2022-11-25 16:57:13,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:13,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215388055] [2022-11-25 16:57:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:13,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:13,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:13,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215388055] [2022-11-25 16:57:13,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215388055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:13,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:13,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:57:13,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765144893] [2022-11-25 16:57:13,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:13,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:57:13,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:13,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:57:13,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:57:13,381 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:13,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:13,472 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-11-25 16:57:13,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:57:13,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 16:57:13,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:13,475 INFO L225 Difference]: With dead ends: 33 [2022-11-25 16:57:13,475 INFO L226 Difference]: Without dead ends: 32 [2022-11-25 16:57:13,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:13,477 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:13,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 88 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:13,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-25 16:57:13,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2022-11-25 16:57:13,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:13,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2022-11-25 16:57:13,485 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 9 [2022-11-25 16:57:13,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:13,485 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2022-11-25 16:57:13,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:13,486 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2022-11-25 16:57:13,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 16:57:13,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:13,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:13,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:57:13,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:13,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:13,498 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2022-11-25 16:57:13,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:13,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219649493] [2022-11-25 16:57:13,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:13,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:13,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:13,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219649493] [2022-11-25 16:57:13,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219649493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:13,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:13,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:57:13,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738516457] [2022-11-25 16:57:13,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:13,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:57:13,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:13,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:57:13,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:57:13,713 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:13,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:13,802 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-11-25 16:57:13,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:57:13,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 [2022-11-25 16:57:13,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:13,805 INFO L225 Difference]: With dead ends: 33 [2022-11-25 16:57:13,805 INFO L226 Difference]: Without dead ends: 32 [2022-11-25 16:57:13,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:13,808 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:13,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 90 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:13,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-25 16:57:13,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-25 16:57:13,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) 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) [2022-11-25 16:57:13,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-11-25 16:57:13,818 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 10 [2022-11-25 16:57:13,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:13,818 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-11-25 16:57:13,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:13,819 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-11-25 16:57:13,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 16:57:13,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:13,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:13,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:57:13,822 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:13,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:13,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1472776363, now seen corresponding path program 1 times [2022-11-25 16:57:13,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:13,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984186534] [2022-11-25 16:57:13,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:13,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:13,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:13,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984186534] [2022-11-25 16:57:13,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984186534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:13,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:13,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:57:13,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058763466] [2022-11-25 16:57:13,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:13,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:57:13,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:13,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:57:13,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:57:13,988 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:14,077 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-11-25 16:57:14,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:57:14,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 [2022-11-25 16:57:14,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:14,083 INFO L225 Difference]: With dead ends: 35 [2022-11-25 16:57:14,083 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 16:57:14,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:14,092 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:14,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 62 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:14,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 16:57:14,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2022-11-25 16:57:14,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-11-25 16:57:14,113 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 11 [2022-11-25 16:57:14,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:14,114 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-11-25 16:57:14,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,114 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-11-25 16:57:14,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 16:57:14,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:14,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:14,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:57:14,116 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:14,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:14,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1588572941, now seen corresponding path program 1 times [2022-11-25 16:57:14,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:14,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458439033] [2022-11-25 16:57:14,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:14,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:14,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:14,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458439033] [2022-11-25 16:57:14,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458439033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:14,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:14,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:57:14,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451085852] [2022-11-25 16:57:14,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:14,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:57:14,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:14,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:57:14,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:57:14,273 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:14,345 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-11-25 16:57:14,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:57:14,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2022-11-25 16:57:14,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:14,348 INFO L225 Difference]: With dead ends: 35 [2022-11-25 16:57:14,348 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 16:57:14,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:14,355 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:14,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 66 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:14,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 16:57:14,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-25 16:57:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 33 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) [2022-11-25 16:57:14,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-11-25 16:57:14,378 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2022-11-25 16:57:14,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:14,379 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-11-25 16:57:14,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,379 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-11-25 16:57:14,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 16:57:14,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:14,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:14,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:57:14,382 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:14,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:14,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1905204139, now seen corresponding path program 1 times [2022-11-25 16:57:14,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:14,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291925451] [2022-11-25 16:57:14,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:14,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:14,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:14,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291925451] [2022-11-25 16:57:14,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291925451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:14,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:14,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:57:14,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593157819] [2022-11-25 16:57:14,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:14,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:14,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:14,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:14,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:14,554 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:14,671 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2022-11-25 16:57:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:57:14,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 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 14 [2022-11-25 16:57:14,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:14,677 INFO L225 Difference]: With dead ends: 55 [2022-11-25 16:57:14,677 INFO L226 Difference]: Without dead ends: 54 [2022-11-25 16:57:14,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:57:14,681 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 23 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:14,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 84 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:14,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-25 16:57:14,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 36. [2022-11-25 16:57:14,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 35 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2022-11-25 16:57:14,696 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 14 [2022-11-25 16:57:14,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:14,698 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2022-11-25 16:57:14,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,699 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2022-11-25 16:57:14,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 16:57:14,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:14,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:14,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 16:57:14,701 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:14,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:14,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1068213904, now seen corresponding path program 1 times [2022-11-25 16:57:14,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:14,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119089410] [2022-11-25 16:57:14,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:14,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:14,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:14,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:14,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119089410] [2022-11-25 16:57:14,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119089410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:14,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:14,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:57:14,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121774080] [2022-11-25 16:57:14,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:14,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:14,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:14,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:14,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:14,861 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:14,952 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2022-11-25 16:57:14,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:57:14,952 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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 [2022-11-25 16:57:14,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:14,955 INFO L225 Difference]: With dead ends: 55 [2022-11-25 16:57:14,956 INFO L226 Difference]: Without dead ends: 54 [2022-11-25 16:57:14,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:57:14,959 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 25 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:14,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 76 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:14,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-25 16:57:14,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2022-11-25 16:57:14,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-11-25 16:57:14,980 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 15 [2022-11-25 16:57:14,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:14,980 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-11-25 16:57:14,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,981 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-11-25 16:57:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 16:57:14,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:14,982 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:14,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:57:14,982 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:14,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:14,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1068218998, now seen corresponding path program 1 times [2022-11-25 16:57:14,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:14,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606601155] [2022-11-25 16:57:14,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:14,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:15,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:15,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:15,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606601155] [2022-11-25 16:57:15,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606601155] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:15,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236964096] [2022-11-25 16:57:15,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:15,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:15,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:15,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:15,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 16:57:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:15,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:57:15,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:15,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:15,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:57:15,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236964096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:15,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:57:15,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 16:57:15,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134422676] [2022-11-25 16:57:15,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:15,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:57:15,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:15,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:57:15,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:57:15,348 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:15,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:15,403 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-11-25 16:57:15,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:57:15,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 [2022-11-25 16:57:15,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:15,406 INFO L225 Difference]: With dead ends: 37 [2022-11-25 16:57:15,407 INFO L226 Difference]: Without dead ends: 36 [2022-11-25 16:57:15,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:57:15,408 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:15,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 51 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:15,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-25 16:57:15,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-25 16:57:15,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 35 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:15,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2022-11-25 16:57:15,414 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 15 [2022-11-25 16:57:15,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:15,415 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2022-11-25 16:57:15,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:15,416 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2022-11-25 16:57:15,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 16:57:15,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:15,417 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:15,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:15,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:15,625 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:15,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:15,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1244949380, now seen corresponding path program 1 times [2022-11-25 16:57:15,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:15,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753869149] [2022-11-25 16:57:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:15,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:15,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:15,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:15,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753869149] [2022-11-25 16:57:15,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753869149] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:15,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197821033] [2022-11-25 16:57:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:15,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:15,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:15,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:15,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 16:57:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:15,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:57:15,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:15,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:15,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:15,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197821033] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:15,974 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:15,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-25 16:57:15,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965567573] [2022-11-25 16:57:15,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:15,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:57:15,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:15,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:57:15,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:57:15,977 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 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) [2022-11-25 16:57:16,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:16,110 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2022-11-25 16:57:16,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:57:16,111 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 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) Word has length 16 [2022-11-25 16:57:16,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:16,111 INFO L225 Difference]: With dead ends: 80 [2022-11-25 16:57:16,112 INFO L226 Difference]: Without dead ends: 79 [2022-11-25 16:57:16,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:57:16,113 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 57 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:16,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 89 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:16,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-25 16:57:16,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2022-11-25 16:57:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.537037037037037) internal successors, (83), 62 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:16,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions. [2022-11-25 16:57:16,119 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 16 [2022-11-25 16:57:16,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:16,119 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 83 transitions. [2022-11-25 16:57:16,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 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) [2022-11-25 16:57:16,120 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2022-11-25 16:57:16,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 16:57:16,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:16,121 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:16,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:16,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:16,328 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:16,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:16,329 INFO L85 PathProgramCache]: Analyzing trace with hash 61274936, now seen corresponding path program 1 times [2022-11-25 16:57:16,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:16,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954459991] [2022-11-25 16:57:16,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:16,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:16,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:16,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954459991] [2022-11-25 16:57:16,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954459991] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:16,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753046795] [2022-11-25 16:57:16,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:16,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:16,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:16,422 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:16,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 16:57:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:57:16,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:16,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:16,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:57:16,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753046795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:16,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:57:16,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 16:57:16,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77474587] [2022-11-25 16:57:16,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:16,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:57:16,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:16,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:57:16,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:57:16,571 INFO L87 Difference]: Start difference. First operand 63 states and 83 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:16,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:16,624 INFO L93 Difference]: Finished difference Result 63 states and 83 transitions. [2022-11-25 16:57:16,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:57:16,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-25 16:57:16,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:16,625 INFO L225 Difference]: With dead ends: 63 [2022-11-25 16:57:16,626 INFO L226 Difference]: Without dead ends: 62 [2022-11-25 16:57:16,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:57:16,627 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:16,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 57 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:16,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-25 16:57:16,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-25 16:57:16,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 61 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2022-11-25 16:57:16,633 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 17 [2022-11-25 16:57:16,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:16,634 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2022-11-25 16:57:16,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:16,634 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2022-11-25 16:57:16,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 16:57:16,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:16,635 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:16,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:16,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 16:57:16,842 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:16,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:16,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1899523070, now seen corresponding path program 1 times [2022-11-25 16:57:16,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:16,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292011086] [2022-11-25 16:57:16,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:16,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:16,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:16,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292011086] [2022-11-25 16:57:16,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292011086] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:16,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996713073] [2022-11-25 16:57:16,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:16,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:16,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:16,932 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:16,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 16:57:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:17,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:57:17,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:17,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:17,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:17,174 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:17,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996713073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:17,174 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:17,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-25 16:57:17,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430657155] [2022-11-25 16:57:17,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:17,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:57:17,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:17,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:57:17,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:57:17,181 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:17,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:17,303 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2022-11-25 16:57:17,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 16:57:17,304 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-25 16:57:17,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:17,305 INFO L225 Difference]: With dead ends: 77 [2022-11-25 16:57:17,306 INFO L226 Difference]: Without dead ends: 76 [2022-11-25 16:57:17,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:57:17,307 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 41 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:17,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 99 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:17,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-25 16:57:17,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 64. [2022-11-25 16:57:17,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 63 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:17,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 80 transitions. [2022-11-25 16:57:17,320 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 80 transitions. Word has length 18 [2022-11-25 16:57:17,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:17,321 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 80 transitions. [2022-11-25 16:57:17,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:17,321 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2022-11-25 16:57:17,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 16:57:17,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:17,323 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:17,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:17,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 16:57:17,530 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:17,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:17,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1244326918, now seen corresponding path program 1 times [2022-11-25 16:57:17,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:17,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385995626] [2022-11-25 16:57:17,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:17,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:17,707 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:17,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:17,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385995626] [2022-11-25 16:57:17,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385995626] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:17,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779011214] [2022-11-25 16:57:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:17,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:17,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:17,710 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:17,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 16:57:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:17,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 16:57:17,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:18,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:57:18,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779011214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:18,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:57:18,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-11-25 16:57:18,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135431980] [2022-11-25 16:57:18,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:18,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:57:18,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:18,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:57:18,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:57:18,013 INFO L87 Difference]: Start difference. First operand 64 states and 80 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 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) [2022-11-25 16:57:18,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:18,132 INFO L93 Difference]: Finished difference Result 64 states and 80 transitions. [2022-11-25 16:57:18,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:57:18,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 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) Word has length 19 [2022-11-25 16:57:18,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:18,134 INFO L225 Difference]: With dead ends: 64 [2022-11-25 16:57:18,134 INFO L226 Difference]: Without dead ends: 63 [2022-11-25 16:57:18,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-11-25 16:57:18,136 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 63 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:18,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 82 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:18,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-25 16:57:18,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-25 16:57:18,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 56 states have (on average 1.375) internal successors, (77), 62 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2022-11-25 16:57:18,145 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 19 [2022-11-25 16:57:18,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:18,146 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2022-11-25 16:57:18,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 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) [2022-11-25 16:57:18,146 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2022-11-25 16:57:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 16:57:18,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:18,147 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:18,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:18,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:18,348 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:18,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:18,348 INFO L85 PathProgramCache]: Analyzing trace with hash 80571264, now seen corresponding path program 1 times [2022-11-25 16:57:18,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:18,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578264971] [2022-11-25 16:57:18,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:18,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:18,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:18,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578264971] [2022-11-25 16:57:18,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578264971] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:18,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755532859] [2022-11-25 16:57:18,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:18,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:18,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:18,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:18,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 16:57:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 16:57:18,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:18,749 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:18,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:18,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:18,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755532859] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:18,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:18,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-11-25 16:57:18,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701212529] [2022-11-25 16:57:18,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:18,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-25 16:57:18,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:18,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-25 16:57:18,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-11-25 16:57:18,924 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:19,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:19,156 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2022-11-25 16:57:19,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:57:19,157 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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 20 [2022-11-25 16:57:19,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:19,158 INFO L225 Difference]: With dead ends: 74 [2022-11-25 16:57:19,158 INFO L226 Difference]: Without dead ends: 73 [2022-11-25 16:57:19,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=227, Invalid=703, Unknown=0, NotChecked=0, Total=930 [2022-11-25 16:57:19,159 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 89 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:19,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 180 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:19,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-25 16:57:19,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 65. [2022-11-25 16:57:19,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 64 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:19,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 77 transitions. [2022-11-25 16:57:19,163 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 77 transitions. Word has length 20 [2022-11-25 16:57:19,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:19,164 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 77 transitions. [2022-11-25 16:57:19,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:19,164 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 77 transitions. [2022-11-25 16:57:19,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 16:57:19,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:19,165 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:19,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:19,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:19,365 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:19,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:19,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1797258052, now seen corresponding path program 1 times [2022-11-25 16:57:19,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:19,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837441757] [2022-11-25 16:57:19,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:19,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:19,487 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:19,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:19,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837441757] [2022-11-25 16:57:19,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837441757] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:19,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935149348] [2022-11-25 16:57:19,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:19,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:19,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:19,490 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:19,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 16:57:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:19,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 16:57:19,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:19,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:57:19,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935149348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:19,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:57:19,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-11-25 16:57:19,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279460215] [2022-11-25 16:57:19,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:19,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:57:19,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:19,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:57:19,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:57:19,760 INFO L87 Difference]: Start difference. First operand 65 states and 77 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:19,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:19,885 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2022-11-25 16:57:19,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:57:19,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-25 16:57:19,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:19,888 INFO L225 Difference]: With dead ends: 65 [2022-11-25 16:57:19,888 INFO L226 Difference]: Without dead ends: 63 [2022-11-25 16:57:19,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-11-25 16:57:19,892 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:19,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 68 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:19,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-25 16:57:19,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-25 16:57:19,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 62 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:19,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2022-11-25 16:57:19,901 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 21 [2022-11-25 16:57:19,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:19,902 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2022-11-25 16:57:19,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:19,902 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2022-11-25 16:57:19,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 16:57:19,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:19,908 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:19,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:20,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 16:57:20,114 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:20,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:20,115 INFO L85 PathProgramCache]: Analyzing trace with hash 119575298, now seen corresponding path program 1 times [2022-11-25 16:57:20,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:20,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267154615] [2022-11-25 16:57:20,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:20,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:20,285 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:20,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:20,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267154615] [2022-11-25 16:57:20,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267154615] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:20,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741544649] [2022-11-25 16:57:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:20,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:20,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:20,288 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:20,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 16:57:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:20,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 16:57:20,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:20,507 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:20,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:20,636 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:20,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741544649] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:20,637 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:20,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-11-25 16:57:20,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058624507] [2022-11-25 16:57:20,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:20,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-25 16:57:20,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:20,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-25 16:57:20,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-11-25 16:57:20,641 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand has 23 states, 22 states have (on average 2.909090909090909) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:21,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:21,005 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2022-11-25 16:57:21,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 16:57:21,006 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.909090909090909) internal successors, (64), 23 states have internal predecessors, (64), 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 22 [2022-11-25 16:57:21,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:21,006 INFO L225 Difference]: With dead ends: 118 [2022-11-25 16:57:21,007 INFO L226 Difference]: Without dead ends: 117 [2022-11-25 16:57:21,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2022-11-25 16:57:21,008 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 95 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:21,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 141 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:21,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-25 16:57:21,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 103. [2022-11-25 16:57:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 98 states have (on average 1.153061224489796) internal successors, (113), 102 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:21,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 113 transitions. [2022-11-25 16:57:21,019 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 113 transitions. Word has length 22 [2022-11-25 16:57:21,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:21,020 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 113 transitions. [2022-11-25 16:57:21,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.909090909090909) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:21,020 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 113 transitions. [2022-11-25 16:57:21,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 16:57:21,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:21,024 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:21,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:21,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 16:57:21,231 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:21,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:21,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1739878945, now seen corresponding path program 1 times [2022-11-25 16:57:21,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:21,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610344243] [2022-11-25 16:57:21,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:21,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,266 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:21,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:21,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610344243] [2022-11-25 16:57:21,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610344243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:21,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:21,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:57:21,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268465262] [2022-11-25 16:57:21,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:21,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:57:21,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:21,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:57:21,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:57:21,270 INFO L87 Difference]: Start difference. First operand 103 states and 113 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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) [2022-11-25 16:57:21,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:21,289 INFO L93 Difference]: Finished difference Result 161 states and 176 transitions. [2022-11-25 16:57:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:57:21,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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) Word has length 25 [2022-11-25 16:57:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:21,292 INFO L225 Difference]: With dead ends: 161 [2022-11-25 16:57:21,292 INFO L226 Difference]: Without dead ends: 123 [2022-11-25 16:57:21,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:57:21,294 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:21,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:21,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-25 16:57:21,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2022-11-25 16:57:21,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 114 states have (on average 1.1403508771929824) internal successors, (130), 118 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 130 transitions. [2022-11-25 16:57:21,305 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 130 transitions. Word has length 25 [2022-11-25 16:57:21,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:21,305 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 130 transitions. [2022-11-25 16:57:21,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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) [2022-11-25 16:57:21,306 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 130 transitions. [2022-11-25 16:57:21,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 16:57:21,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:21,307 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 16:57:21,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 16:57:21,307 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:21,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:21,308 INFO L85 PathProgramCache]: Analyzing trace with hash 979524861, now seen corresponding path program 1 times [2022-11-25 16:57:21,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:21,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236544500] [2022-11-25 16:57:21,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:21,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:21,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:21,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236544500] [2022-11-25 16:57:21,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236544500] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:21,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275002543] [2022-11-25 16:57:21,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:21,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:21,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:21,569 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:21,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 16:57:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 16:57:21,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:21,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:22,098 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:22,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275002543] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:22,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:22,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2022-11-25 16:57:22,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046453511] [2022-11-25 16:57:22,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:22,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 16:57:22,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:22,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 16:57:22,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=582, Unknown=0, NotChecked=0, Total=756 [2022-11-25 16:57:22,101 INFO L87 Difference]: Start difference. First operand 119 states and 130 transitions. Second operand has 28 states, 27 states have (on average 2.814814814814815) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:22,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:22,583 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2022-11-25 16:57:22,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 16:57:22,583 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.814814814814815) internal successors, (76), 28 states have internal predecessors, (76), 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 27 [2022-11-25 16:57:22,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:22,584 INFO L225 Difference]: With dead ends: 144 [2022-11-25 16:57:22,585 INFO L226 Difference]: Without dead ends: 142 [2022-11-25 16:57:22,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=435, Invalid=1205, Unknown=0, NotChecked=0, Total=1640 [2022-11-25 16:57:22,586 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 119 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:22,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 173 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-25 16:57:22,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 109. [2022-11-25 16:57:22,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 104 states have (on average 1.125) internal successors, (117), 108 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) [2022-11-25 16:57:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2022-11-25 16:57:22,596 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 27 [2022-11-25 16:57:22,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:22,597 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2022-11-25 16:57:22,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.814814814814815) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:22,597 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2022-11-25 16:57:22,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 16:57:22,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:22,599 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 16:57:22,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:22,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 16:57:22,805 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:22,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:22,806 INFO L85 PathProgramCache]: Analyzing trace with hash -531953560, now seen corresponding path program 1 times [2022-11-25 16:57:22,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:22,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630493847] [2022-11-25 16:57:22,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:22,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 16:57:22,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:22,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630493847] [2022-11-25 16:57:22,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630493847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:22,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:22,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:57:22,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617659737] [2022-11-25 16:57:22,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:22,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:57:22,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:22,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:57:22,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:57:22,861 INFO L87 Difference]: Start difference. First operand 109 states and 117 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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) [2022-11-25 16:57:22,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:22,875 INFO L93 Difference]: Finished difference Result 146 states and 150 transitions. [2022-11-25 16:57:22,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:57:22,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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 46 [2022-11-25 16:57:22,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:22,876 INFO L225 Difference]: With dead ends: 146 [2022-11-25 16:57:22,877 INFO L226 Difference]: Without dead ends: 106 [2022-11-25 16:57:22,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:57:22,878 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 5 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:22,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 48 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:22,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-25 16:57:22,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2022-11-25 16:57:22,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 97 states have (on average 1.1030927835051547) internal successors, (107), 101 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:22,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2022-11-25 16:57:22,889 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 46 [2022-11-25 16:57:22,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:22,889 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2022-11-25 16:57:22,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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) [2022-11-25 16:57:22,890 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2022-11-25 16:57:22,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 16:57:22,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:22,891 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-25 16:57:22,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 16:57:22,891 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:22,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:22,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1253571607, now seen corresponding path program 2 times [2022-11-25 16:57:22,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:22,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729100072] [2022-11-25 16:57:22,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:22,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,136 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:23,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:23,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729100072] [2022-11-25 16:57:23,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729100072] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:23,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555525973] [2022-11-25 16:57:23,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:57:23,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:23,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:23,141 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:23,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 16:57:23,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:57:23,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:57:23,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 16:57:23,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:23,348 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:23,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:23,603 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:23,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555525973] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:23,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:23,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-11-25 16:57:23,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364691853] [2022-11-25 16:57:23,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:23,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 16:57:23,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:23,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 16:57:23,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-11-25 16:57:23,606 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 24 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:23,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:23,895 INFO L93 Difference]: Finished difference Result 247 states and 278 transitions. [2022-11-25 16:57:23,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 16:57:23,896 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 24 states have internal predecessors, (96), 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 46 [2022-11-25 16:57:23,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:23,897 INFO L225 Difference]: With dead ends: 247 [2022-11-25 16:57:23,897 INFO L226 Difference]: Without dead ends: 246 [2022-11-25 16:57:23,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 16:57:23,899 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 156 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:23,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 173 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:23,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-25 16:57:23,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 224. [2022-11-25 16:57:23,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 219 states have (on average 1.2146118721461188) internal successors, (266), 223 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:23,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 266 transitions. [2022-11-25 16:57:23,915 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 266 transitions. Word has length 46 [2022-11-25 16:57:23,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:23,915 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 266 transitions. [2022-11-25 16:57:23,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 24 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:23,916 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 266 transitions. [2022-11-25 16:57:23,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 16:57:23,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:23,917 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1] [2022-11-25 16:57:23,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:24,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:24,124 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:24,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:24,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1091348876, now seen corresponding path program 1 times [2022-11-25 16:57:24,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:24,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552357842] [2022-11-25 16:57:24,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:24,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:24,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:24,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552357842] [2022-11-25 16:57:24,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552357842] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:24,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643015434] [2022-11-25 16:57:24,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:24,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:24,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:24,505 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:24,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 16:57:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:24,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 16:57:24,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:25,203 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:25,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:25,725 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:25,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643015434] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:25,725 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:25,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2022-11-25 16:57:25,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284649457] [2022-11-25 16:57:25,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:25,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-25 16:57:25,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:25,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-25 16:57:25,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1987, Unknown=0, NotChecked=0, Total=2450 [2022-11-25 16:57:25,729 INFO L87 Difference]: Start difference. First operand 224 states and 266 transitions. Second operand has 50 states, 49 states have (on average 2.8979591836734695) internal successors, (142), 50 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:27,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:27,472 INFO L93 Difference]: Finished difference Result 239 states and 266 transitions. [2022-11-25 16:57:27,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-25 16:57:27,474 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 2.8979591836734695) internal successors, (142), 50 states have internal predecessors, (142), 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 48 [2022-11-25 16:57:27,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:27,476 INFO L225 Difference]: With dead ends: 239 [2022-11-25 16:57:27,476 INFO L226 Difference]: Without dead ends: 238 [2022-11-25 16:57:27,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2293 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1498, Invalid=5308, Unknown=0, NotChecked=0, Total=6806 [2022-11-25 16:57:27,480 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 309 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:27,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 221 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 16:57:27,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-11-25 16:57:27,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 224. [2022-11-25 16:57:27,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 219 states have (on average 1.178082191780822) internal successors, (258), 223 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 258 transitions. [2022-11-25 16:57:27,500 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 258 transitions. Word has length 48 [2022-11-25 16:57:27,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:27,501 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 258 transitions. [2022-11-25 16:57:27,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 2.8979591836734695) internal successors, (142), 50 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:27,502 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 258 transitions. [2022-11-25 16:57:27,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 16:57:27,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:27,503 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-25 16:57:27,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:27,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-25 16:57:27,709 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:27,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:27,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2091469781, now seen corresponding path program 2 times [2022-11-25 16:57:27,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:27,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450038137] [2022-11-25 16:57:27,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:27,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:27,921 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:27,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:27,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450038137] [2022-11-25 16:57:27,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450038137] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:27,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705201813] [2022-11-25 16:57:27,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:57:27,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:27,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:27,924 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:27,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 16:57:28,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:57:28,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:57:28,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 16:57:28,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:28,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:28,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705201813] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:28,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:28,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-11-25 16:57:28,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049016381] [2022-11-25 16:57:28,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:28,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 16:57:28,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:28,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 16:57:28,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-11-25 16:57:28,418 INFO L87 Difference]: Start difference. First operand 224 states and 258 transitions. Second operand has 24 states, 23 states have (on average 4.434782608695652) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:28,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:28,717 INFO L93 Difference]: Finished difference Result 242 states and 264 transitions. [2022-11-25 16:57:28,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 16:57:28,721 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.434782608695652) internal successors, (102), 24 states have internal predecessors, (102), 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 48 [2022-11-25 16:57:28,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:28,722 INFO L225 Difference]: With dead ends: 242 [2022-11-25 16:57:28,728 INFO L226 Difference]: Without dead ends: 241 [2022-11-25 16:57:28,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 16:57:28,730 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 104 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:28,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 162 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:28,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-25 16:57:28,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 228. [2022-11-25 16:57:28,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.1300448430493273) internal successors, (252), 227 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:28,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 252 transitions. [2022-11-25 16:57:28,749 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 252 transitions. Word has length 48 [2022-11-25 16:57:28,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:28,750 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 252 transitions. [2022-11-25 16:57:28,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.434782608695652) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:28,750 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 252 transitions. [2022-11-25 16:57:28,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-25 16:57:28,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:28,751 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-11-25 16:57:28,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:28,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-25 16:57:28,960 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:28,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:28,961 INFO L85 PathProgramCache]: Analyzing trace with hash 142236781, now seen corresponding path program 2 times [2022-11-25 16:57:28,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:28,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204139320] [2022-11-25 16:57:28,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:28,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,366 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:29,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:29,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204139320] [2022-11-25 16:57:29,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204139320] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:29,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899303073] [2022-11-25 16:57:29,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:57:29,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:29,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:29,368 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:29,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 16:57:29,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:57:29,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:57:29,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 16:57:29,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:29,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:30,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899303073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:30,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:30,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2022-11-25 16:57:30,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920925848] [2022-11-25 16:57:30,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:30,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-25 16:57:30,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:30,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-25 16:57:30,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2028, Unknown=0, NotChecked=0, Total=2450 [2022-11-25 16:57:30,495 INFO L87 Difference]: Start difference. First operand 228 states and 252 transitions. Second operand has 50 states, 49 states have (on average 3.020408163265306) internal successors, (148), 50 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:31,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:31,431 INFO L93 Difference]: Finished difference Result 241 states and 258 transitions. [2022-11-25 16:57:31,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-25 16:57:31,436 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 3.020408163265306) internal successors, (148), 50 states have internal predecessors, (148), 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 50 [2022-11-25 16:57:31,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:31,437 INFO L225 Difference]: With dead ends: 241 [2022-11-25 16:57:31,437 INFO L226 Difference]: Without dead ends: 240 [2022-11-25 16:57:31,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1685 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=985, Invalid=3845, Unknown=0, NotChecked=0, Total=4830 [2022-11-25 16:57:31,440 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 231 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:31,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 444 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:57:31,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-11-25 16:57:31,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 232. [2022-11-25 16:57:31,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 227 states have (on average 1.0837004405286343) internal successors, (246), 231 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 246 transitions. [2022-11-25 16:57:31,453 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 246 transitions. Word has length 50 [2022-11-25 16:57:31,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:31,453 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 246 transitions. [2022-11-25 16:57:31,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 3.020408163265306) internal successors, (148), 50 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:31,454 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 246 transitions. [2022-11-25 16:57:31,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 16:57:31,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:31,455 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2022-11-25 16:57:31,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-25 16:57:31,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:31,661 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:31,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:31,661 INFO L85 PathProgramCache]: Analyzing trace with hash -528001193, now seen corresponding path program 2 times [2022-11-25 16:57:31,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:31,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395632451] [2022-11-25 16:57:31,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:31,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:32,026 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:32,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:32,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395632451] [2022-11-25 16:57:32,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395632451] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:32,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349767404] [2022-11-25 16:57:32,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:57:32,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:32,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:32,029 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:32,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 16:57:32,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:57:32,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:57:32,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 16:57:32,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:32,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:33,296 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:33,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349767404] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:33,296 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:33,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 51 [2022-11-25 16:57:33,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739953160] [2022-11-25 16:57:33,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:33,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-25 16:57:33,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:33,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-25 16:57:33,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=2150, Unknown=0, NotChecked=0, Total=2652 [2022-11-25 16:57:33,300 INFO L87 Difference]: Start difference. First operand 232 states and 246 transitions. Second operand has 52 states, 51 states have (on average 2.9019607843137254) internal successors, (148), 52 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:34,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:34,661 INFO L93 Difference]: Finished difference Result 234 states and 246 transitions. [2022-11-25 16:57:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-25 16:57:34,662 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.9019607843137254) internal successors, (148), 52 states have internal predecessors, (148), 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 51 [2022-11-25 16:57:34,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:34,663 INFO L225 Difference]: With dead ends: 234 [2022-11-25 16:57:34,664 INFO L226 Difference]: Without dead ends: 233 [2022-11-25 16:57:34,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2161 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1431, Invalid=4731, Unknown=0, NotChecked=0, Total=6162 [2022-11-25 16:57:34,667 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 297 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:34,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 269 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 16:57:34,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-11-25 16:57:34,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 232. [2022-11-25 16:57:34,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 227 states have (on average 1.066079295154185) internal successors, (242), 231 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:34,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 242 transitions. [2022-11-25 16:57:34,683 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 242 transitions. Word has length 51 [2022-11-25 16:57:34,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:34,683 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 242 transitions. [2022-11-25 16:57:34,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.9019607843137254) internal successors, (148), 52 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:34,684 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 242 transitions. [2022-11-25 16:57:34,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-25 16:57:34,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:34,685 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1] [2022-11-25 16:57:34,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-11-25 16:57:34,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-25 16:57:34,892 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:34,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:34,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1952333931, now seen corresponding path program 2 times [2022-11-25 16:57:34,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:34,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145837168] [2022-11-25 16:57:34,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:34,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:35,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:35,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145837168] [2022-11-25 16:57:35,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145837168] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:35,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116674182] [2022-11-25 16:57:35,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:57:35,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:35,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:35,921 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:35,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 16:57:36,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:57:36,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:57:36,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-25 16:57:36,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:37,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:38,868 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:38,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116674182] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:38,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:38,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 85 [2022-11-25 16:57:38,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847382011] [2022-11-25 16:57:38,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:38,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-11-25 16:57:38,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:38,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-11-25 16:57:38,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1096, Invalid=6214, Unknown=0, NotChecked=0, Total=7310 [2022-11-25 16:57:38,874 INFO L87 Difference]: Start difference. First operand 232 states and 242 transitions. Second operand has 86 states, 85 states have (on average 3.223529411764706) internal successors, (274), 86 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:43,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:43,808 INFO L93 Difference]: Finished difference Result 341 states and 357 transitions. [2022-11-25 16:57:43,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-11-25 16:57:43,809 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 85 states have (on average 3.223529411764706) internal successors, (274), 86 states have internal predecessors, (274), 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 92 [2022-11-25 16:57:43,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:43,811 INFO L225 Difference]: With dead ends: 341 [2022-11-25 16:57:43,812 INFO L226 Difference]: Without dead ends: 340 [2022-11-25 16:57:43,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7720 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=4460, Invalid=17296, Unknown=0, NotChecked=0, Total=21756 [2022-11-25 16:57:43,820 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 560 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:43,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 566 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 16:57:43,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-25 16:57:43,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 314. [2022-11-25 16:57:43,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.116504854368932) internal successors, (345), 313 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:43,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 345 transitions. [2022-11-25 16:57:43,850 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 345 transitions. Word has length 92 [2022-11-25 16:57:43,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:43,851 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 345 transitions. [2022-11-25 16:57:43,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 85 states have (on average 3.223529411764706) internal successors, (274), 86 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:43,852 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 345 transitions. [2022-11-25 16:57:43,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-25 16:57:43,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:43,859 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1] [2022-11-25 16:57:43,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:44,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-25 16:57:44,066 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:44,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:44,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2084404725, now seen corresponding path program 3 times [2022-11-25 16:57:44,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:44,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007398220] [2022-11-25 16:57:44,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:44,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,360 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:45,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:45,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007398220] [2022-11-25 16:57:45,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007398220] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:45,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383769893] [2022-11-25 16:57:45,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:57:45,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:45,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:45,363 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:45,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 16:57:45,492 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-25 16:57:45,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:57:45,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-25 16:57:45,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:47,011 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:47,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:48,460 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:48,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383769893] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:48,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:48,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 99 [2022-11-25 16:57:48,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538396485] [2022-11-25 16:57:48,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:48,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-11-25 16:57:48,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:48,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-11-25 16:57:48,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1614, Invalid=8286, Unknown=0, NotChecked=0, Total=9900 [2022-11-25 16:57:48,465 INFO L87 Difference]: Start difference. First operand 314 states and 345 transitions. Second operand has 100 states, 99 states have (on average 2.9494949494949494) internal successors, (292), 100 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:53,748 INFO L93 Difference]: Finished difference Result 417 states and 437 transitions. [2022-11-25 16:57:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-11-25 16:57:53,749 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 99 states have (on average 2.9494949494949494) internal successors, (292), 100 states have internal predecessors, (292), 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 99 [2022-11-25 16:57:53,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:53,751 INFO L225 Difference]: With dead ends: 417 [2022-11-25 16:57:53,752 INFO L226 Difference]: Without dead ends: 415 [2022-11-25 16:57:53,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10706 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=6071, Invalid=22659, Unknown=0, NotChecked=0, Total=28730 [2022-11-25 16:57:53,756 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1218 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:53,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 500 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 16:57:53,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-11-25 16:57:53,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 379. [2022-11-25 16:57:53,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 374 states have (on average 1.1310160427807487) internal successors, (423), 378 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:53,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 423 transitions. [2022-11-25 16:57:53,780 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 423 transitions. Word has length 99 [2022-11-25 16:57:53,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:53,780 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 423 transitions. [2022-11-25 16:57:53,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 99 states have (on average 2.9494949494949494) internal successors, (292), 100 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:53,781 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 423 transitions. [2022-11-25 16:57:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 16:57:53,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:53,783 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-25 16:57:53,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:53,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-25 16:57:53,990 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:53,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:53,991 INFO L85 PathProgramCache]: Analyzing trace with hash -337724285, now seen corresponding path program 3 times [2022-11-25 16:57:53,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:53,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531963844] [2022-11-25 16:57:53,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:53,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:54,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:54,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531963844] [2022-11-25 16:57:54,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531963844] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:54,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414048443] [2022-11-25 16:57:54,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:57:54,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:54,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:54,593 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:54,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 16:57:54,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-25 16:57:54,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:57:54,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 16:57:54,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 243 proven. 51 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-25 16:57:54,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:55,560 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 243 proven. 51 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-25 16:57:55,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414048443] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:55,561 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:55,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 43 [2022-11-25 16:57:55,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285003385] [2022-11-25 16:57:55,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:55,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-25 16:57:55,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:55,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-25 16:57:55,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1556, Unknown=0, NotChecked=0, Total=1892 [2022-11-25 16:57:55,565 INFO L87 Difference]: Start difference. First operand 379 states and 423 transitions. Second operand has 44 states, 43 states have (on average 4.511627906976744) internal successors, (194), 44 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:58,007 INFO L93 Difference]: Finished difference Result 381 states and 423 transitions. [2022-11-25 16:57:58,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-25 16:57:58,008 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.511627906976744) internal successors, (194), 44 states have internal predecessors, (194), 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 106 [2022-11-25 16:57:58,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:58,010 INFO L225 Difference]: With dead ends: 381 [2022-11-25 16:57:58,010 INFO L226 Difference]: Without dead ends: 380 [2022-11-25 16:57:58,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1954 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2056, Invalid=6686, Unknown=0, NotChecked=0, Total=8742 [2022-11-25 16:57:58,013 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 427 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:58,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 213 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:57:58,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-11-25 16:57:58,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2022-11-25 16:57:58,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 374 states have (on average 1.0909090909090908) internal successors, (408), 377 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:58,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 408 transitions. [2022-11-25 16:57:58,041 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 408 transitions. Word has length 106 [2022-11-25 16:57:58,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:58,042 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 408 transitions. [2022-11-25 16:57:58,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.511627906976744) internal successors, (194), 44 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:58,042 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 408 transitions. [2022-11-25 16:57:58,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 16:57:58,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:58,044 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-25 16:57:58,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:58,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-25 16:57:58,258 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:57:58,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:58,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1864478277, now seen corresponding path program 3 times [2022-11-25 16:57:58,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:58,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992365172] [2022-11-25 16:57:58,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:58,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:58,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:58,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992365172] [2022-11-25 16:57:58,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992365172] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:58,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324740537] [2022-11-25 16:57:58,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:57:58,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:58,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:58,885 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:58,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-25 16:57:58,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-25 16:57:58,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:57:58,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 16:57:58,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:59,303 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 251 proven. 51 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-11-25 16:57:59,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:59,841 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 251 proven. 51 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-11-25 16:57:59,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324740537] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:59,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:59,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 43 [2022-11-25 16:57:59,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382843000] [2022-11-25 16:57:59,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:59,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-25 16:57:59,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:59,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-25 16:57:59,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1556, Unknown=0, NotChecked=0, Total=1892 [2022-11-25 16:57:59,845 INFO L87 Difference]: Start difference. First operand 378 states and 408 transitions. Second operand has 44 states, 43 states have (on average 4.558139534883721) internal successors, (196), 44 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:02,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:58:02,231 INFO L93 Difference]: Finished difference Result 379 states and 408 transitions. [2022-11-25 16:58:02,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-25 16:58:02,231 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.558139534883721) internal successors, (196), 44 states have internal predecessors, (196), 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 108 [2022-11-25 16:58:02,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:58:02,233 INFO L225 Difference]: With dead ends: 379 [2022-11-25 16:58:02,233 INFO L226 Difference]: Without dead ends: 378 [2022-11-25 16:58:02,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1952 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2064, Invalid=6678, Unknown=0, NotChecked=0, Total=8742 [2022-11-25 16:58:02,236 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 367 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:58:02,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 145 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:58:02,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-11-25 16:58:02,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2022-11-25 16:58:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 374 states have (on average 1.0508021390374331) internal successors, (393), 376 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:02,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 393 transitions. [2022-11-25 16:58:02,265 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 393 transitions. Word has length 108 [2022-11-25 16:58:02,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:58:02,265 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 393 transitions. [2022-11-25 16:58:02,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.558139534883721) internal successors, (196), 44 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:02,266 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 393 transitions. [2022-11-25 16:58:02,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 16:58:02,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:58:02,267 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-11-25 16:58:02,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-25 16:58:02,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-25 16:58:02,474 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:58:02,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:02,474 INFO L85 PathProgramCache]: Analyzing trace with hash 762263559, now seen corresponding path program 3 times [2022-11-25 16:58:02,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:02,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867006139] [2022-11-25 16:58:02,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:02,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:03,481 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:03,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:03,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867006139] [2022-11-25 16:58:03,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867006139] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:58:03,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308043809] [2022-11-25 16:58:03,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:58:03,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:58:03,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:58:03,485 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:58:03,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-25 16:58:03,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-25 16:58:03,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:58:03,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-25 16:58:03,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:58:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:05,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:58:06,865 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:06,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308043809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:58:06,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:58:06,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 103 [2022-11-25 16:58:06,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390415412] [2022-11-25 16:58:06,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:58:06,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-11-25 16:58:06,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:06,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-11-25 16:58:06,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1547, Invalid=9165, Unknown=0, NotChecked=0, Total=10712 [2022-11-25 16:58:06,871 INFO L87 Difference]: Start difference. First operand 377 states and 393 transitions. Second operand has 104 states, 103 states have (on average 3.1844660194174756) internal successors, (328), 104 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:11,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:58:11,078 INFO L93 Difference]: Finished difference Result 507 states and 536 transitions. [2022-11-25 16:58:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-11-25 16:58:11,081 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 103 states have (on average 3.1844660194174756) internal successors, (328), 104 states have internal predecessors, (328), 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 110 [2022-11-25 16:58:11,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:58:11,083 INFO L225 Difference]: With dead ends: 507 [2022-11-25 16:58:11,083 INFO L226 Difference]: Without dead ends: 506 [2022-11-25 16:58:11,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8162 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=4093, Invalid=17663, Unknown=0, NotChecked=0, Total=21756 [2022-11-25 16:58:11,086 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1044 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:58:11,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 648 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 16:58:11,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2022-11-25 16:58:11,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 494. [2022-11-25 16:58:11,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 491 states have (on average 1.0427698574338085) internal successors, (512), 493 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:11,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 512 transitions. [2022-11-25 16:58:11,126 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 512 transitions. Word has length 110 [2022-11-25 16:58:11,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:58:11,126 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 512 transitions. [2022-11-25 16:58:11,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 103 states have (on average 3.1844660194174756) internal successors, (328), 104 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:11,127 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 512 transitions. [2022-11-25 16:58:11,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-25 16:58:11,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:58:11,130 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1] [2022-11-25 16:58:11,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-25 16:58:11,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-25 16:58:11,338 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:58:11,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:11,338 INFO L85 PathProgramCache]: Analyzing trace with hash 428779248, now seen corresponding path program 2 times [2022-11-25 16:58:11,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:11,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916779731] [2022-11-25 16:58:11,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:11,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:14,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 0 proven. 1395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:14,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:14,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916779731] [2022-11-25 16:58:14,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916779731] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:58:14,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420586843] [2022-11-25 16:58:14,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:58:14,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:58:14,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:58:14,713 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:58:14,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-25 16:58:14,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:58:14,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:58:14,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-25 16:58:14,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:58:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 0 proven. 1395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:19,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:58:24,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 0 proven. 1395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:24,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420586843] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:58:24,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:58:24,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 193 [2022-11-25 16:58:24,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255521815] [2022-11-25 16:58:24,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:58:24,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2022-11-25 16:58:24,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:24,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2022-11-25 16:58:24,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5527, Invalid=31915, Unknown=0, NotChecked=0, Total=37442 [2022-11-25 16:58:24,360 INFO L87 Difference]: Start difference. First operand 494 states and 512 transitions. Second operand has 194 states, 193 states have (on average 2.9740932642487046) internal successors, (574), 194 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:46,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:58:46,259 INFO L93 Difference]: Finished difference Result 732 states and 773 transitions. [2022-11-25 16:58:46,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-11-25 16:58:46,260 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 193 states have (on average 2.9740932642487046) internal successors, (574), 194 states have internal predecessors, (574), 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 192 [2022-11-25 16:58:46,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:58:46,263 INFO L225 Difference]: With dead ends: 732 [2022-11-25 16:58:46,263 INFO L226 Difference]: Without dead ends: 731 [2022-11-25 16:58:46,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 316 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39545 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=19886, Invalid=80920, Unknown=0, NotChecked=0, Total=100806 [2022-11-25 16:58:46,271 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2178 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:58:46,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 838 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 16:58:46,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-11-25 16:58:46,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 706. [2022-11-25 16:58:46,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 703 states have (on average 1.0568990042674253) internal successors, (743), 705 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:46,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 743 transitions. [2022-11-25 16:58:46,322 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 743 transitions. Word has length 192 [2022-11-25 16:58:46,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:58:46,323 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 743 transitions. [2022-11-25 16:58:46,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 193 states have (on average 2.9740932642487046) internal successors, (574), 194 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:46,324 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 743 transitions. [2022-11-25 16:58:46,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-25 16:58:46,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:58:46,327 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 1, 1, 1, 1] [2022-11-25 16:58:46,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-25 16:58:46,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:58:46,534 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:58:46,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:46,534 INFO L85 PathProgramCache]: Analyzing trace with hash 529903475, now seen corresponding path program 4 times [2022-11-25 16:58:46,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:46,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200199949] [2022-11-25 16:58:46,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:46,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:49,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:49,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200199949] [2022-11-25 16:58:49,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200199949] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:58:49,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755091455] [2022-11-25 16:58:49,846 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 16:58:49,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:58:49,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:58:49,848 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:58:49,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-25 16:58:49,981 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 16:58:49,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:58:49,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-25 16:58:49,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:58:54,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:54,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:58:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:59,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755091455] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:58:59,189 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:58:59,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 195 [2022-11-25 16:58:59,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140994500] [2022-11-25 16:58:59,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:58:59,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2022-11-25 16:58:59,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:59,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2022-11-25 16:58:59,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5662, Invalid=32558, Unknown=0, NotChecked=0, Total=38220 [2022-11-25 16:58:59,195 INFO L87 Difference]: Start difference. First operand 706 states and 743 transitions. Second operand has 196 states, 195 states have (on average 2.9743589743589745) internal successors, (580), 196 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:22,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:22,358 INFO L93 Difference]: Finished difference Result 741 states and 759 transitions. [2022-11-25 16:59:22,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-11-25 16:59:22,359 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 2.9743589743589745) internal successors, (580), 196 states have internal predecessors, (580), 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 195 [2022-11-25 16:59:22,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:22,361 INFO L225 Difference]: With dead ends: 741 [2022-11-25 16:59:22,361 INFO L226 Difference]: Without dead ends: 740 [2022-11-25 16:59:22,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 317 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39987 ImplicationChecksByTransitivity, 30.7s TimeCoverageRelationStatistics Valid=21187, Invalid=80255, Unknown=0, NotChecked=0, Total=101442 [2022-11-25 16:59:22,367 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2924 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:22,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2924 Valid, 973 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 16:59:22,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-11-25 16:59:22,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 709. [2022-11-25 16:59:22,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 706 states have (on average 1.0354107648725213) internal successors, (731), 708 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 731 transitions. [2022-11-25 16:59:22,418 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 731 transitions. Word has length 195 [2022-11-25 16:59:22,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:22,419 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 731 transitions. [2022-11-25 16:59:22,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 2.9743589743589745) internal successors, (580), 196 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 731 transitions. [2022-11-25 16:59:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-25 16:59:22,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:22,424 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-11-25 16:59:22,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-11-25 16:59:22,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:22,631 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:22,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:22,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1202689595, now seen corresponding path program 4 times [2022-11-25 16:59:22,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:22,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072696459] [2022-11-25 16:59:22,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:22,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:26,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 0 proven. 2464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:26,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:26,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072696459] [2022-11-25 16:59:26,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072696459] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:26,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117504867] [2022-11-25 16:59:26,780 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 16:59:26,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:26,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:26,782 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:26,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-25 16:59:26,931 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 16:59:26,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:59:26,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-25 16:59:26,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:32,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 0 proven. 2464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:32,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:59:37,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 0 proven. 2464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:37,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117504867] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:59:37,661 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:59:37,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 211 [2022-11-25 16:59:37,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009222642] [2022-11-25 16:59:37,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:59:37,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 212 states [2022-11-25 16:59:37,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:37,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2022-11-25 16:59:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5849, Invalid=38883, Unknown=0, NotChecked=0, Total=44732 [2022-11-25 16:59:37,670 INFO L87 Difference]: Start difference. First operand 709 states and 731 transitions. Second operand has 212 states, 211 states have (on average 3.2606635071090047) internal successors, (688), 212 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:56,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:56,348 INFO L93 Difference]: Finished difference Result 1051 states and 1114 transitions. [2022-11-25 16:59:56,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-11-25 16:59:56,349 INFO L78 Accepts]: Start accepts. Automaton has has 212 states, 211 states have (on average 3.2606635071090047) internal successors, (688), 212 states have internal predecessors, (688), 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 230 [2022-11-25 16:59:56,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:56,353 INFO L225 Difference]: With dead ends: 1051 [2022-11-25 16:59:56,353 INFO L226 Difference]: Without dead ends: 1050 [2022-11-25 16:59:56,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35696 ImplicationChecksByTransitivity, 28.6s TimeCoverageRelationStatistics Valid=16681, Invalid=75431, Unknown=0, NotChecked=0, Total=92112 [2022-11-25 16:59:56,359 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4202 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4202 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:56,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4202 Valid, 1413 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 16:59:56,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2022-11-25 16:59:56,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1022. [2022-11-25 16:59:56,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 1019 states have (on average 1.0461236506378804) internal successors, (1066), 1021 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1066 transitions. [2022-11-25 16:59:56,429 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1066 transitions. Word has length 230 [2022-11-25 16:59:56,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:56,429 INFO L495 AbstractCegarLoop]: Abstraction has 1022 states and 1066 transitions. [2022-11-25 16:59:56,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 212 states, 211 states have (on average 3.2606635071090047) internal successors, (688), 212 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:56,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1066 transitions. [2022-11-25 16:59:56,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-11-25 16:59:56,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:56,437 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 32, 32, 1, 1, 1, 1] [2022-11-25 16:59:56,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-11-25 16:59:56,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:56,644 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:56,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:56,645 INFO L85 PathProgramCache]: Analyzing trace with hash 504756947, now seen corresponding path program 3 times [2022-11-25 16:59:56,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:56,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310424573] [2022-11-25 16:59:56,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:56,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:03,547 INFO L134 CoverageAnalysis]: Checked inductivity of 5248 backedges. 0 proven. 5248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:03,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:03,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310424573] [2022-11-25 17:00:03,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310424573] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:00:03,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50324117] [2022-11-25 17:00:03,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:00:03,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:00:03,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:00:03,555 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:00:03,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-25 17:00:04,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2022-11-25 17:00:04,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:00:04,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 101 conjunts are in the unsatisfiable core [2022-11-25 17:00:04,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:12,435 INFO L134 CoverageAnalysis]: Checked inductivity of 5248 backedges. 0 proven. 5248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:12,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:00:22,594 INFO L134 CoverageAnalysis]: Checked inductivity of 5248 backedges. 0 proven. 5248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:22,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50324117] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:00:22,595 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:00:22,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101, 101] total 301 [2022-11-25 17:00:22,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646604032] [2022-11-25 17:00:22,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:00:22,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 302 states [2022-11-25 17:00:22,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:22,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 302 interpolants. [2022-11-25 17:00:22,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11524, Invalid=79378, Unknown=0, NotChecked=0, Total=90902 [2022-11-25 17:00:22,607 INFO L87 Difference]: Start difference. First operand 1022 states and 1066 transitions. Second operand has 302 states, 301 states have (on average 3.302325581395349) internal successors, (994), 302 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:01:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:23,586 INFO L93 Difference]: Finished difference Result 1247 states and 1309 transitions. [2022-11-25 17:01:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 269 states. [2022-11-25 17:01:23,587 INFO L78 Accepts]: Start accepts. Automaton has has 302 states, 301 states have (on average 3.302325581395349) internal successors, (994), 302 states have internal predecessors, (994), 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 332 [2022-11-25 17:01:23,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:23,591 INFO L225 Difference]: With dead ends: 1247 [2022-11-25 17:01:23,591 INFO L226 Difference]: Without dead ends: 1246 [2022-11-25 17:01:23,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 963 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 500 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96884 ImplicationChecksByTransitivity, 76.7s TimeCoverageRelationStatistics Valid=50474, Invalid=201028, Unknown=0, NotChecked=0, Total=251502 [2022-11-25 17:01:23,606 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3745 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 892 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3745 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 3076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 892 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:23,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3745 Valid, 1678 Invalid, 3076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [892 Valid, 2184 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 17:01:23,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2022-11-25 17:01:23,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1224. [2022-11-25 17:01:23,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1221 states have (on average 1.0425880425880425) internal successors, (1273), 1223 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:01:23,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1273 transitions. [2022-11-25 17:01:23,684 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1273 transitions. Word has length 332 [2022-11-25 17:01:23,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:23,685 INFO L495 AbstractCegarLoop]: Abstraction has 1224 states and 1273 transitions. [2022-11-25 17:01:23,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 302 states, 301 states have (on average 3.302325581395349) internal successors, (994), 302 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:01:23,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1273 transitions. [2022-11-25 17:01:23,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2022-11-25 17:01:23,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:23,692 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 31, 1, 1, 1, 1] [2022-11-25 17:01:23,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-25 17:01:23,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:01:23,899 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:01:23,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:23,900 INFO L85 PathProgramCache]: Analyzing trace with hash 158296643, now seen corresponding path program 5 times [2022-11-25 17:01:23,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:23,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271014028] [2022-11-25 17:01:23,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:23,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 5952 backedges. 0 proven. 5952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:01:33,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:33,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271014028] [2022-11-25 17:01:33,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271014028] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:01:33,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615624424] [2022-11-25 17:01:33,283 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 17:01:33,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:01:33,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:01:33,284 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:01:33,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-25 17:01:33,594 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-11-25 17:01:33,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:01:33,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 130 conjunts are in the unsatisfiable core [2022-11-25 17:01:33,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:01:45,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5952 backedges. 0 proven. 5952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:01:45,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5952 backedges. 0 proven. 5952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:02:00,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615624424] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:02:00,802 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:02:00,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130, 130] total 387 [2022-11-25 17:02:00,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233963101] [2022-11-25 17:02:00,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:02:00,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 388 states [2022-11-25 17:02:00,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:00,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 388 interpolants. [2022-11-25 17:02:00,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21054, Invalid=129102, Unknown=0, NotChecked=0, Total=150156 [2022-11-25 17:02:00,819 INFO L87 Difference]: Start difference. First operand 1224 states and 1273 transitions. Second operand has 388 states, 387 states have (on average 2.987080103359173) internal successors, (1156), 388 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:48,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:48,091 INFO L93 Difference]: Finished difference Result 1471 states and 1535 transitions. [2022-11-25 17:03:48,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-11-25 17:03:48,092 INFO L78 Accepts]: Start accepts. Automaton has has 388 states, 387 states have (on average 2.987080103359173) internal successors, (1156), 388 states have internal predecessors, (1156), 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 387 [2022-11-25 17:03:48,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:48,100 INFO L225 Difference]: With dead ends: 1471 [2022-11-25 17:03:48,101 INFO L226 Difference]: Without dead ends: 1469 [2022-11-25 17:03:48,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1153 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 637 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163811 ImplicationChecksByTransitivity, 128.8s TimeCoverageRelationStatistics Valid=83819, Invalid=323863, Unknown=0, NotChecked=0, Total=407682 [2022-11-25 17:03:48,125 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12765 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 1734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12765 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 3920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1734 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:48,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12765 Valid, 1767 Invalid, 3920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1734 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 17:03:48,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2022-11-25 17:03:48,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1433. [2022-11-25 17:03:48,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1430 states have (on average 1.03006993006993) internal successors, (1473), 1432 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1473 transitions. [2022-11-25 17:03:48,209 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1473 transitions. Word has length 387 [2022-11-25 17:03:48,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:48,210 INFO L495 AbstractCegarLoop]: Abstraction has 1433 states and 1473 transitions. [2022-11-25 17:03:48,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 388 states, 387 states have (on average 2.987080103359173) internal successors, (1156), 388 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:03:48,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1473 transitions. [2022-11-25 17:03:48,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2022-11-25 17:03:48,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:48,219 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2022-11-25 17:03:48,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-25 17:03:48,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-25 17:03:48,425 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:03:48,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:48,426 INFO L85 PathProgramCache]: Analyzing trace with hash -813633885, now seen corresponding path program 5 times [2022-11-25 17:03:48,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:48,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372370613] [2022-11-25 17:03:48,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:48,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:00,932 INFO L134 CoverageAnalysis]: Checked inductivity of 10672 backedges. 0 proven. 10672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:00,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:00,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372370613] [2022-11-25 17:04:00,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372370613] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:04:00,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536903619] [2022-11-25 17:04:00,933 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 17:04:00,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:00,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:00,934 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:00,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-25 17:04:01,435 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-11-25 17:04:01,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:04:01,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 143 conjunts are in the unsatisfiable core [2022-11-25 17:04:01,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:17,207 INFO L134 CoverageAnalysis]: Checked inductivity of 10672 backedges. 0 proven. 10672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:17,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:04:37,230 INFO L134 CoverageAnalysis]: Checked inductivity of 10672 backedges. 0 proven. 10672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:37,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536903619] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:04:37,230 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:04:37,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [143, 143, 143] total 427 [2022-11-25 17:04:37,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818605321] [2022-11-25 17:04:37,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:04:37,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 428 states [2022-11-25 17:04:37,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:37,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 428 interpolants. [2022-11-25 17:04:37,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22661, Invalid=160095, Unknown=0, NotChecked=0, Total=182756 [2022-11-25 17:04:37,252 INFO L87 Difference]: Start difference. First operand 1433 states and 1473 transitions. Second operand has 428 states, 427 states have (on average 3.297423887587822) internal successors, (1408), 428 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:06:32,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:06:32,425 INFO L93 Difference]: Finished difference Result 2139 states and 2264 transitions. [2022-11-25 17:06:32,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 285 states. [2022-11-25 17:06:32,426 INFO L78 Accepts]: Start accepts. Automaton has has 428 states, 427 states have (on average 3.297423887587822) internal successors, (1408), 428 states have internal predecessors, (1408), 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 470 [2022-11-25 17:06:32,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:06:32,435 INFO L225 Difference]: With dead ends: 2139 [2022-11-25 17:06:32,435 INFO L226 Difference]: Without dead ends: 2138 [2022-11-25 17:06:32,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1269 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 614 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149084 ImplicationChecksByTransitivity, 146.9s TimeCoverageRelationStatistics Valid=67345, Invalid=311495, Unknown=0, NotChecked=0, Total=378840 [2022-11-25 17:06:32,457 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15013 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15013 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 976 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:06:32,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15013 Valid, 2811 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [976 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 17:06:32,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2022-11-25 17:06:32,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2078. [2022-11-25 17:06:32,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 2075 states have (on average 1.0448192771084337) internal successors, (2168), 2077 states have internal predecessors, (2168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:06:32,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 2168 transitions. [2022-11-25 17:06:32,575 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 2168 transitions. Word has length 470 [2022-11-25 17:06:32,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:06:32,576 INFO L495 AbstractCegarLoop]: Abstraction has 2078 states and 2168 transitions. [2022-11-25 17:06:32,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 428 states, 427 states have (on average 3.297423887587822) internal successors, (1408), 428 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:06:32,577 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 2168 transitions. [2022-11-25 17:06:32,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2022-11-25 17:06:32,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:06:32,583 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 67, 67, 67, 67, 67, 66, 66, 1, 1, 1, 1] [2022-11-25 17:06:32,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-25 17:06:32,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-25 17:06:32,790 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 17:06:32,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:06:32,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1088736785, now seen corresponding path program 4 times [2022-11-25 17:06:32,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:06:32,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694310288] [2022-11-25 17:06:32,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:06:32,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:06:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:06:58,501 INFO L134 CoverageAnalysis]: Checked inductivity of 22044 backedges. 0 proven. 22044 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:06:58,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:06:58,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694310288] [2022-11-25 17:06:58,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694310288] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:06:58,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285825569] [2022-11-25 17:06:58,502 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 17:06:58,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:06:58,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:06:58,504 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:06:58,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc540041-63e5-4ad7-a4f5-3fb49b9f8417/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-25 17:06:58,804 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 17:06:58,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:06:58,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1574 conjuncts, 203 conjunts are in the unsatisfiable core [2022-11-25 17:06:58,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:07:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 22044 backedges. 0 proven. 22044 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:07:32,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:08:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 22044 backedges. 0 proven. 22044 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:08:13,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285825569] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:08:13,882 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:08:13,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [203, 203, 203] total 607 [2022-11-25 17:08:13,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411014460] [2022-11-25 17:08:13,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:08:13,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 608 states [2022-11-25 17:08:13,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:08:13,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 608 interpolants. [2022-11-25 17:08:13,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45031, Invalid=324025, Unknown=0, NotChecked=0, Total=369056 [2022-11-25 17:08:13,921 INFO L87 Difference]: Start difference. First operand 2078 states and 2168 transitions. Second operand has 608 states, 607 states have (on average 3.3179571663920924) internal successors, (2014), 608 states have internal predecessors, (2014), 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)