./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-simple/nested_4.c --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_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/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_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/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_b96dc4c1-1777-4599-8984-6a259b4e4429/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 fcf77da5263056f8d62c4caf3b92919690d80ef4ff864a75d0d8d1eec10bdccf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:36:08,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:36:08,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:36:08,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:36:08,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:36:08,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:36:08,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:36:08,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:36:08,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:36:08,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:36:08,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:36:08,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:36:08,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:36:08,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:36:08,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:36:08,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:36:08,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:36:08,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:36:08,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:36:08,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:36:08,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:36:08,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:36:08,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:36:08,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:36:08,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:36:08,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:36:08,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:36:08,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:36:08,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:36:08,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:36:08,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:36:08,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:36:08,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:36:08,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:36:08,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:36:08,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:36:08,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:36:08,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:36:08,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:36:08,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:36:08,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:36:08,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 15:36:08,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:36:08,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:36:08,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:36:08,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:36:08,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:36:08,374 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:36:08,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:36:08,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:36:08,375 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:36:08,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:36:08,376 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:36:08,376 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:36:08,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:36:08,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:36:08,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:36:08,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:36:08,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:36:08,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:36:08,377 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:36:08,378 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:36:08,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:36:08,378 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:36:08,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:36:08,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:36:08,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:36:08,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:36:08,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:36:08,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:36:08,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:36:08,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:36:08,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:36:08,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:36:08,380 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:36:08,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:36:08,381 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:36:08,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:36:08,381 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_b96dc4c1-1777-4599-8984-6a259b4e4429/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcf77da5263056f8d62c4caf3b92919690d80ef4ff864a75d0d8d1eec10bdccf [2022-11-25 15:36:08,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:36:08,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:36:08,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:36:08,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:36:08,650 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:36:08,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/loop-simple/nested_4.c [2022-11-25 15:36:11,727 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:36:11,969 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:36:11,969 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/sv-benchmarks/c/loop-simple/nested_4.c [2022-11-25 15:36:11,976 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/data/cf96c0c29/6a195074aea84dd89969b05c15afbcc1/FLAGf0e73db58 [2022-11-25 15:36:11,995 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/data/cf96c0c29/6a195074aea84dd89969b05c15afbcc1 [2022-11-25 15:36:11,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:36:12,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:36:12,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:36:12,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:36:12,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:36:12,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:36:11" (1/1) ... [2022-11-25 15:36:12,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd596a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12, skipping insertion in model container [2022-11-25 15:36:12,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:36:11" (1/1) ... [2022-11-25 15:36:12,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:36:12,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:36:12,193 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_b96dc4c1-1777-4599-8984-6a259b4e4429/sv-benchmarks/c/loop-simple/nested_4.c[841,854] [2022-11-25 15:36:12,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:36:12,205 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:36:12,219 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_b96dc4c1-1777-4599-8984-6a259b4e4429/sv-benchmarks/c/loop-simple/nested_4.c[841,854] [2022-11-25 15:36:12,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:36:12,231 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:36:12,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12 WrapperNode [2022-11-25 15:36:12,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:36:12,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:36:12,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:36:12,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:36:12,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (1/1) ... [2022-11-25 15:36:12,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (1/1) ... [2022-11-25 15:36:12,270 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2022-11-25 15:36:12,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:36:12,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:36:12,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:36:12,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:36:12,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (1/1) ... [2022-11-25 15:36:12,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (1/1) ... [2022-11-25 15:36:12,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (1/1) ... [2022-11-25 15:36:12,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (1/1) ... [2022-11-25 15:36:12,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (1/1) ... [2022-11-25 15:36:12,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (1/1) ... [2022-11-25 15:36:12,306 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (1/1) ... [2022-11-25 15:36:12,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (1/1) ... [2022-11-25 15:36:12,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:36:12,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:36:12,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:36:12,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:36:12,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (1/1) ... [2022-11-25 15:36:12,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:36:12,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:12,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:36:12,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:36:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:36:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:36:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:36:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:36:12,454 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:36:12,456 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:36:12,607 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:36:12,615 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:36:12,616 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 15:36:12,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:36:12 BoogieIcfgContainer [2022-11-25 15:36:12,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:36:12,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:36:12,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:36:12,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:36:12,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:36:11" (1/3) ... [2022-11-25 15:36:12,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1378ea43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:36:12, skipping insertion in model container [2022-11-25 15:36:12,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:12" (2/3) ... [2022-11-25 15:36:12,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1378ea43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:36:12, skipping insertion in model container [2022-11-25 15:36:12,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:36:12" (3/3) ... [2022-11-25 15:36:12,639 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_4.c [2022-11-25 15:36:12,661 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:36:12,662 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 15:36:12,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:36:12,713 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;@67863408, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:36:12,714 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 15:36:12,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 26 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 15:36:12,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 15:36:12,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:12,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 15:36:12,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:12,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:12,736 INFO L85 PathProgramCache]: Analyzing trace with hash 28698896, now seen corresponding path program 1 times [2022-11-25 15:36:12,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:12,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432537198] [2022-11-25 15:36:12,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:12,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:12,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:12,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432537198] [2022-11-25 15:36:12,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432537198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:12,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:12,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:36:12,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613865541] [2022-11-25 15:36:12,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:12,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:12,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:13,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:13,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:13,035 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 26 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:13,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:13,079 INFO L93 Difference]: Finished difference Result 65 states and 89 transitions. [2022-11-25 15:36:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:13,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 15:36:13,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:13,090 INFO L225 Difference]: With dead ends: 65 [2022-11-25 15:36:13,090 INFO L226 Difference]: Without dead ends: 35 [2022-11-25 15:36:13,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:13,097 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:13,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 48 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:13,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-25 15:36:13,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2022-11-25 15:36:13,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:13,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2022-11-25 15:36:13,134 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 5 [2022-11-25 15:36:13,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:13,134 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2022-11-25 15:36:13,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:13,135 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2022-11-25 15:36:13,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 15:36:13,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:13,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:13,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:36:13,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:13,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:13,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1809866106, now seen corresponding path program 1 times [2022-11-25 15:36:13,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:13,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890482424] [2022-11-25 15:36:13,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:13,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:13,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:13,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:13,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890482424] [2022-11-25 15:36:13,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890482424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:13,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:13,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:36:13,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085177546] [2022-11-25 15:36:13,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:13,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:13,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:13,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:13,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:13,191 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:13,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:13,217 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2022-11-25 15:36:13,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:13,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 15:36:13,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:13,219 INFO L225 Difference]: With dead ends: 66 [2022-11-25 15:36:13,219 INFO L226 Difference]: Without dead ends: 37 [2022-11-25 15:36:13,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:13,221 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:13,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:13,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-25 15:36:13,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-25 15:36:13,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 36 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:13,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2022-11-25 15:36:13,229 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 7 [2022-11-25 15:36:13,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:13,229 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2022-11-25 15:36:13,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:13,230 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2022-11-25 15:36:13,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 15:36:13,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:13,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:13,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:36:13,231 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash -181697864, now seen corresponding path program 1 times [2022-11-25 15:36:13,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:13,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577199955] [2022-11-25 15:36:13,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:13,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:13,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:13,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:13,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577199955] [2022-11-25 15:36:13,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577199955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:13,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:13,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:36:13,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082010053] [2022-11-25 15:36:13,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:13,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:13,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:13,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:13,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:13,327 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 15:36:13,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:13,380 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2022-11-25 15:36:13,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:13,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 15:36:13,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:13,382 INFO L225 Difference]: With dead ends: 92 [2022-11-25 15:36:13,383 INFO L226 Difference]: Without dead ends: 57 [2022-11-25 15:36:13,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:13,384 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:13,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:13,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-25 15:36:13,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2022-11-25 15:36:13,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 54 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:13,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2022-11-25 15:36:13,399 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 9 [2022-11-25 15:36:13,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:13,399 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2022-11-25 15:36:13,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 15:36:13,400 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2022-11-25 15:36:13,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 15:36:13,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:13,400 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:13,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:36:13,401 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:13,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:13,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1296563273, now seen corresponding path program 1 times [2022-11-25 15:36:13,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:13,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440799681] [2022-11-25 15:36:13,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:13,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:13,491 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 15:36:13,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:13,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440799681] [2022-11-25 15:36:13,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440799681] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:36:13,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018634230] [2022-11-25 15:36:13,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:13,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:13,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:13,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:36:13,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:36:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:13,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:36:13,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:13,641 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 15:36:13,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:36:13,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018634230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:13,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:36:13,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-25 15:36:13,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914695216] [2022-11-25 15:36:13,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:13,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:36:13,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:13,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:36:13,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:36:13,644 INFO L87 Difference]: Start difference. First operand 55 states and 70 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 15:36:13,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:13,671 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2022-11-25 15:36:13,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:36:13,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 15:36:13,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:13,674 INFO L225 Difference]: With dead ends: 55 [2022-11-25 15:36:13,674 INFO L226 Difference]: Without dead ends: 54 [2022-11-25 15:36:13,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:36:13,676 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 37 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:13,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 20 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:13,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-25 15:36:13,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-25 15:36:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 53 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:13,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2022-11-25 15:36:13,689 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 10 [2022-11-25 15:36:13,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:13,690 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2022-11-25 15:36:13,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 15:36:13,690 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2022-11-25 15:36:13,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 15:36:13,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:13,691 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:13,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 15:36:13,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:13,897 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:13,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:13,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1538755730, now seen corresponding path program 1 times [2022-11-25 15:36:13,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:13,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126132769] [2022-11-25 15:36:13,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:13,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:13,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 15:36:13,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:13,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126132769] [2022-11-25 15:36:13,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126132769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:13,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:13,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:36:13,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952289908] [2022-11-25 15:36:13,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:13,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:13,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:13,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:13,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:13,978 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 15:36:13,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:14,000 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2022-11-25 15:36:14,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:14,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 15:36:14,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:14,004 INFO L225 Difference]: With dead ends: 54 [2022-11-25 15:36:14,004 INFO L226 Difference]: Without dead ends: 53 [2022-11-25 15:36:14,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:14,007 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:14,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:14,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-25 15:36:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 45. [2022-11-25 15:36:14,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 44 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:14,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2022-11-25 15:36:14,030 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 11 [2022-11-25 15:36:14,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:14,030 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2022-11-25 15:36:14,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 15:36:14,031 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2022-11-25 15:36:14,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 15:36:14,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:14,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:14,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:36:14,032 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:14,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:14,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1935062902, now seen corresponding path program 1 times [2022-11-25 15:36:14,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:14,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581812221] [2022-11-25 15:36:14,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:14,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:14,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:14,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581812221] [2022-11-25 15:36:14,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581812221] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:36:14,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665075445] [2022-11-25 15:36:14,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:14,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:14,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:14,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:36:14,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:36:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:14,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:36:14,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:14,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 15:36:14,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:36:14,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665075445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:14,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:36:14,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:36:14,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342418578] [2022-11-25 15:36:14,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:14,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:14,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:14,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:14,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:36:14,219 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:14,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:14,231 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2022-11-25 15:36:14,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:14,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-25 15:36:14,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:14,232 INFO L225 Difference]: With dead ends: 45 [2022-11-25 15:36:14,232 INFO L226 Difference]: Without dead ends: 44 [2022-11-25 15:36:14,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:36:14,234 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:14,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 19 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:14,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-25 15:36:14,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-25 15:36:14,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.358974358974359) internal successors, (53), 43 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2022-11-25 15:36:14,242 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 16 [2022-11-25 15:36:14,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:14,243 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2022-11-25 15:36:14,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:14,243 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2022-11-25 15:36:14,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 15:36:14,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:14,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:14,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:36:14,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:14,450 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:14,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:14,451 INFO L85 PathProgramCache]: Analyzing trace with hash -142592092, now seen corresponding path program 1 times [2022-11-25 15:36:14,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:14,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9644245] [2022-11-25 15:36:14,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:14,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:14,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:14,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9644245] [2022-11-25 15:36:14,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9644245] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:36:14,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973448670] [2022-11-25 15:36:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:14,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:14,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:14,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:36:14,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:36:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:14,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:36:14,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 15:36:14,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:36:14,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973448670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:14,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:36:14,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:36:14,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82997065] [2022-11-25 15:36:14,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:14,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:14,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:14,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:14,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:36:14,633 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 15:36:14,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:14,663 INFO L93 Difference]: Finished difference Result 86 states and 104 transitions. [2022-11-25 15:36:14,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:14,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 15:36:14,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:14,670 INFO L225 Difference]: With dead ends: 86 [2022-11-25 15:36:14,670 INFO L226 Difference]: Without dead ends: 85 [2022-11-25 15:36:14,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:36:14,671 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:14,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 36 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:14,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-25 15:36:14,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2022-11-25 15:36:14,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 76 states have (on average 1.355263157894737) internal successors, (103), 80 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:14,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions. [2022-11-25 15:36:14,700 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 17 [2022-11-25 15:36:14,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:14,700 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions. [2022-11-25 15:36:14,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 15:36:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2022-11-25 15:36:14,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 15:36:14,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:14,707 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:14,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 15:36:14,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:14,912 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:14,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash -101489022, now seen corresponding path program 1 times [2022-11-25 15:36:14,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:14,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781902413] [2022-11-25 15:36:14,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:14,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:14,953 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 15:36:14,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:14,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781902413] [2022-11-25 15:36:14,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781902413] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:36:14,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832859543] [2022-11-25 15:36:14,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:14,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:14,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:14,956 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:36:14,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:36:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:36:15,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 15:36:15,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:36:15,072 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 15:36:15,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832859543] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:36:15,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:36:15,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 15:36:15,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977628932] [2022-11-25 15:36:15,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:36:15,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:36:15,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:15,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:36:15,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:36:15,083 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:15,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:15,138 INFO L93 Difference]: Finished difference Result 225 states and 292 transitions. [2022-11-25 15:36:15,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:36:15,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-25 15:36:15,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:15,141 INFO L225 Difference]: With dead ends: 225 [2022-11-25 15:36:15,141 INFO L226 Difference]: Without dead ends: 153 [2022-11-25 15:36:15,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:36:15,144 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:15,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 83 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:15,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-25 15:36:15,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-11-25 15:36:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.1824324324324325) internal successors, (175), 152 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:15,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 175 transitions. [2022-11-25 15:36:15,177 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 175 transitions. Word has length 17 [2022-11-25 15:36:15,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:15,177 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 175 transitions. [2022-11-25 15:36:15,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:15,178 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 175 transitions. [2022-11-25 15:36:15,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 15:36:15,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:15,179 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:15,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:36:15,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:15,390 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:15,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:15,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1733170254, now seen corresponding path program 2 times [2022-11-25 15:36:15,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:15,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021968175] [2022-11-25 15:36:15,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:15,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,459 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-25 15:36:15,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:15,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021968175] [2022-11-25 15:36:15,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021968175] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:36:15,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912942792] [2022-11-25 15:36:15,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:36:15,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:15,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:15,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:36:15,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:36:15,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:36:15,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:36:15,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:36:15,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:15,618 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-25 15:36:15,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:36:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-25 15:36:15,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912942792] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:36:15,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:36:15,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2022-11-25 15:36:15,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883817044] [2022-11-25 15:36:15,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:36:15,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:36:15,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:15,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:36:15,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:36:15,710 INFO L87 Difference]: Start difference. First operand 153 states and 175 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:15,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:15,931 INFO L93 Difference]: Finished difference Result 335 states and 395 transitions. [2022-11-25 15:36:15,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 15:36:15,932 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-25 15:36:15,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:15,933 INFO L225 Difference]: With dead ends: 335 [2022-11-25 15:36:15,933 INFO L226 Difference]: Without dead ends: 200 [2022-11-25 15:36:15,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2022-11-25 15:36:15,935 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:15,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 60 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:36:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-25 15:36:15,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2022-11-25 15:36:15,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 196 states have (on average 1.1173469387755102) internal successors, (219), 199 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:15,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 219 transitions. [2022-11-25 15:36:15,955 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 219 transitions. Word has length 35 [2022-11-25 15:36:15,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:15,955 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 219 transitions. [2022-11-25 15:36:15,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:15,955 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 219 transitions. [2022-11-25 15:36:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 15:36:15,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:15,957 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:15,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 15:36:16,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:16,162 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:16,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:16,163 INFO L85 PathProgramCache]: Analyzing trace with hash 791216218, now seen corresponding path program 1 times [2022-11-25 15:36:16,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:16,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147918573] [2022-11-25 15:36:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:16,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:16,238 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-25 15:36:16,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:16,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147918573] [2022-11-25 15:36:16,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147918573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:16,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:16,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:36:16,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052547306] [2022-11-25 15:36:16,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:16,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:16,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:16,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:16,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:16,241 INFO L87 Difference]: Start difference. First operand 200 states and 219 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:16,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:16,261 INFO L93 Difference]: Finished difference Result 200 states and 219 transitions. [2022-11-25 15:36:16,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:16,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 15:36:16,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:16,263 INFO L225 Difference]: With dead ends: 200 [2022-11-25 15:36:16,263 INFO L226 Difference]: Without dead ends: 199 [2022-11-25 15:36:16,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:16,264 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:16,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:16,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-25 15:36:16,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 115. [2022-11-25 15:36:16,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 112 states have (on average 1.1339285714285714) internal successors, (127), 114 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:16,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 127 transitions. [2022-11-25 15:36:16,279 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 127 transitions. Word has length 48 [2022-11-25 15:36:16,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:16,279 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 127 transitions. [2022-11-25 15:36:16,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:16,280 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 127 transitions. [2022-11-25 15:36:16,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-25 15:36:16,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:16,281 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:16,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 15:36:16,281 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:16,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:16,282 INFO L85 PathProgramCache]: Analyzing trace with hash -726819315, now seen corresponding path program 1 times [2022-11-25 15:36:16,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:16,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603857021] [2022-11-25 15:36:16,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:16,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:16,357 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-25 15:36:16,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:16,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603857021] [2022-11-25 15:36:16,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603857021] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:36:16,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789200518] [2022-11-25 15:36:16,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:16,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:16,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:16,359 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:36:16,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 15:36:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:16,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:36:16,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:16,502 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-25 15:36:16,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:36:16,553 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 128 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-25 15:36:16,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789200518] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:36:16,554 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:36:16,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 15:36:16,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097964534] [2022-11-25 15:36:16,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:36:16,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:36:16,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:16,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:36:16,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:36:16,559 INFO L87 Difference]: Start difference. First operand 115 states and 127 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:16,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:16,621 INFO L93 Difference]: Finished difference Result 467 states and 513 transitions. [2022-11-25 15:36:16,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:36:16,622 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 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 54 [2022-11-25 15:36:16,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:16,623 INFO L225 Difference]: With dead ends: 467 [2022-11-25 15:36:16,624 INFO L226 Difference]: Without dead ends: 379 [2022-11-25 15:36:16,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:36:16,626 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:16,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 49 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:16,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-11-25 15:36:16,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2022-11-25 15:36:16,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 376 states have (on average 1.071808510638298) internal successors, (403), 378 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:16,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 403 transitions. [2022-11-25 15:36:16,667 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 403 transitions. Word has length 54 [2022-11-25 15:36:16,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:16,668 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 403 transitions. [2022-11-25 15:36:16,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:16,669 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 403 transitions. [2022-11-25 15:36:16,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-25 15:36:16,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:16,685 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:16,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 15:36:16,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 15:36:16,894 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:16,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:16,895 INFO L85 PathProgramCache]: Analyzing trace with hash 293855293, now seen corresponding path program 2 times [2022-11-25 15:36:16,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:16,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466581367] [2022-11-25 15:36:16,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:16,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:17,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 0 proven. 1995 refuted. 0 times theorem prover too weak. 1904 trivial. 0 not checked. [2022-11-25 15:36:17,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:17,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466581367] [2022-11-25 15:36:17,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466581367] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:36:17,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157022656] [2022-11-25 15:36:17,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:36:17,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:17,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:17,243 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:36:17,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 15:36:17,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:36:17,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:36:17,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:36:17,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:17,536 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 1994 proven. 748 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2022-11-25 15:36:17,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:36:17,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 1994 proven. 748 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2022-11-25 15:36:17,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157022656] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:36:17,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:36:17,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2022-11-25 15:36:17,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268409311] [2022-11-25 15:36:17,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:36:17,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:36:17,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:17,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:36:17,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:36:17,748 INFO L87 Difference]: Start difference. First operand 379 states and 403 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 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 15:36:17,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:17,966 INFO L93 Difference]: Finished difference Result 840 states and 900 transitions. [2022-11-25 15:36:17,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 15:36:17,966 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 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 186 [2022-11-25 15:36:17,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:17,971 INFO L225 Difference]: With dead ends: 840 [2022-11-25 15:36:17,971 INFO L226 Difference]: Without dead ends: 554 [2022-11-25 15:36:17,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 361 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2022-11-25 15:36:17,974 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 18 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:17,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 76 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:36:17,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-11-25 15:36:18,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2022-11-25 15:36:18,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 552 states have (on average 1.059782608695652) internal successors, (585), 553 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 585 transitions. [2022-11-25 15:36:18,024 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 585 transitions. Word has length 186 [2022-11-25 15:36:18,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:18,026 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 585 transitions. [2022-11-25 15:36:18,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 10 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 15:36:18,026 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 585 transitions. [2022-11-25 15:36:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-25 15:36:18,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:18,030 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 12, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 15:36:18,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 15:36:18,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:18,236 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:18,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:18,237 INFO L85 PathProgramCache]: Analyzing trace with hash 117651350, now seen corresponding path program 1 times [2022-11-25 15:36:18,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:18,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331058546] [2022-11-25 15:36:18,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:18,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 8824 backedges. 4479 proven. 0 refuted. 0 times theorem prover too weak. 4345 trivial. 0 not checked. [2022-11-25 15:36:18,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:18,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331058546] [2022-11-25 15:36:18,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331058546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:18,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:18,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:36:18,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826119944] [2022-11-25 15:36:18,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:18,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:18,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:18,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:18,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:18,403 INFO L87 Difference]: Start difference. First operand 554 states and 585 transitions. Second operand has 3 states, 2 states have (on average 12.5) 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 15:36:18,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:18,457 INFO L93 Difference]: Finished difference Result 554 states and 585 transitions. [2022-11-25 15:36:18,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:18,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) 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 275 [2022-11-25 15:36:18,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:18,459 INFO L225 Difference]: With dead ends: 554 [2022-11-25 15:36:18,459 INFO L226 Difference]: Without dead ends: 553 [2022-11-25 15:36:18,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:36:18,462 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:18,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:18,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-25 15:36:18,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 283. [2022-11-25 15:36:18,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.0602836879432624) internal successors, (299), 282 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:18,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 299 transitions. [2022-11-25 15:36:18,547 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 299 transitions. Word has length 275 [2022-11-25 15:36:18,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:18,548 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 299 transitions. [2022-11-25 15:36:18,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) 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 15:36:18,549 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 299 transitions. [2022-11-25 15:36:18,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-25 15:36:18,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:18,553 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-25 15:36:18,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 15:36:18,554 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:36:18,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:18,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1144911330, now seen corresponding path program 1 times [2022-11-25 15:36:18,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:18,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232880039] [2022-11-25 15:36:18,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:18,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,802 INFO L134 CoverageAnalysis]: Checked inductivity of 8832 backedges. 4484 proven. 1 refuted. 0 times theorem prover too weak. 4347 trivial. 0 not checked. [2022-11-25 15:36:18,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:18,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232880039] [2022-11-25 15:36:18,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232880039] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:36:18,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866397978] [2022-11-25 15:36:18,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:18,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:18,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:18,804 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:36:18,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 15:36:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:36:18,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:19,136 INFO L134 CoverageAnalysis]: Checked inductivity of 8832 backedges. 4485 proven. 0 refuted. 0 times theorem prover too weak. 4347 trivial. 0 not checked. [2022-11-25 15:36:19,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:36:19,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866397978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:19,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:36:19,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:36:19,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138785997] [2022-11-25 15:36:19,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:19,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:19,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:19,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:19,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:36:19,139 INFO L87 Difference]: Start difference. First operand 283 states and 299 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 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 15:36:19,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:19,176 INFO L93 Difference]: Finished difference Result 283 states and 299 transitions. [2022-11-25 15:36:19,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:19,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 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) Word has length 282 [2022-11-25 15:36:19,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:19,177 INFO L225 Difference]: With dead ends: 283 [2022-11-25 15:36:19,177 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 15:36:19,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:36:19,178 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:19,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:19,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 15:36:19,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 15:36:19,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:36:19,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 15:36:19,180 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 282 [2022-11-25 15:36:19,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:19,180 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:36:19,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 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 15:36:19,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 15:36:19,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 15:36:19,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-25 15:36:19,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-25 15:36:19,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-25 15:36:19,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-25 15:36:19,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-25 15:36:19,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-25 15:36:19,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-25 15:36:19,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-25 15:36:19,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 15:36:19,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:19,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 15:36:23,021 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-25 15:36:23,021 INFO L899 garLoopResultBuilder]: For program point L31-1(lines 31 33) no Hoare annotation was computed. [2022-11-25 15:36:23,021 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 29) no Hoare annotation was computed. [2022-11-25 15:36:23,021 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-11-25 15:36:23,021 INFO L895 garLoopResultBuilder]: At program point L23-4(lines 23 29) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~c~0#1|)) (.cse1 (< |ULTIMATE.start_main_~a~0#1| 6)) (.cse2 (<= 1 |ULTIMATE.start_main_~d~0#1|)) (.cse3 (<= 0 |ULTIMATE.start_main_~a~0#1|))) (or (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse2 .cse3) (and (= |ULTIMATE.start_main_~b~0#1| 0) .cse0 .cse1 .cse2 .cse3))) [2022-11-25 15:36:23,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-25 15:36:23,022 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 15:36:23,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-25 15:36:23,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 15:36:23,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-25 15:36:23,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 15:36:23,022 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2022-11-25 15:36:23,022 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2022-11-25 15:36:23,022 INFO L895 garLoopResultBuilder]: At program point L24-4(lines 24 28) the Hoare annotation is: (let ((.cse5 (<= |ULTIMATE.start_main_~b~0#1| 5)) (.cse6 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse2 (= |ULTIMATE.start_main_~b~0#1| 0)) (.cse3 (<= 1 |ULTIMATE.start_main_~d~0#1|)) (.cse4 (<= 0 |ULTIMATE.start_main_~a~0#1|)) (.cse0 (< |ULTIMATE.start_main_~a~0#1| 6))) (or (and .cse0 (let ((.cse1 (= |ULTIMATE.start_main_~c~0#1| 0))) (or (and .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse3 .cse4)))) (and (let ((.cse7 (<= 1 |ULTIMATE.start_main_~c~0#1|))) (or (and .cse7 .cse5 .cse6 .cse3 .cse4) (and .cse2 .cse7 .cse3 .cse4))) .cse0))) [2022-11-25 15:36:23,023 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-25 15:36:23,023 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 15:36:23,023 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-25 15:36:23,023 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 27) no Hoare annotation was computed. [2022-11-25 15:36:23,023 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-25 15:36:23,023 INFO L895 garLoopResultBuilder]: At program point L25-4(lines 25 27) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_main_~a~0#1| 6)) (.cse2 (= |ULTIMATE.start_main_~b~0#1| 0)) (.cse8 (<= |ULTIMATE.start_main_~c~0#1| 5)) (.cse9 (<= 1 |ULTIMATE.start_main_~c~0#1|)) (.cse5 (= |ULTIMATE.start_main_~c~0#1| 0)) (.cse7 (<= 0 |ULTIMATE.start_main_~a~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~b~0#1| 5)) (.cse4 (<= 1 |ULTIMATE.start_main_~b~0#1|))) (or (and .cse0 (let ((.cse1 (let ((.cse6 (<= 1 |ULTIMATE.start_main_~d~0#1|))) (or (and .cse5 .cse6 .cse7) (and .cse8 .cse9 .cse6 .cse7))))) (or (and .cse1 .cse2) (and .cse1 .cse3 .cse4)))) (and .cse0 (let ((.cse10 (= |ULTIMATE.start_main_~d~0#1| 0))) (or (and .cse8 .cse2 .cse9 .cse10 .cse7) (and .cse5 .cse2 .cse10 .cse7) (and (or (and .cse8 .cse9 .cse10 .cse7) (and .cse5 .cse10 .cse7)) .cse3 .cse4)))))) [2022-11-25 15:36:23,023 INFO L902 garLoopResultBuilder]: At program point L34(lines 15 35) the Hoare annotation is: true [2022-11-25 15:36:23,023 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-11-25 15:36:23,023 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 30) no Hoare annotation was computed. [2022-11-25 15:36:23,024 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2022-11-25 15:36:23,024 INFO L895 garLoopResultBuilder]: At program point L22-4(lines 22 30) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= 1 |ULTIMATE.start_main_~d~0#1|) (<= 0 |ULTIMATE.start_main_~a~0#1|)) [2022-11-25 15:36:23,024 INFO L899 garLoopResultBuilder]: For program point L22-5(lines 15 35) no Hoare annotation was computed. [2022-11-25 15:36:23,024 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-11-25 15:36:23,027 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:23,029 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:36:23,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:36:23 BoogieIcfgContainer [2022-11-25 15:36:23,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:36:23,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:36:23,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:36:23,067 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:36:23,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:36:12" (3/4) ... [2022-11-25 15:36:23,070 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:36:23,081 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-25 15:36:23,082 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 15:36:23,082 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 15:36:23,082 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:36:23,123 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:36:23,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:36:23,124 INFO L158 Benchmark]: Toolchain (without parser) took 11123.84ms. Allocated memory was 234.9MB in the beginning and 283.1MB in the end (delta: 48.2MB). Free memory was 191.5MB in the beginning and 146.8MB in the end (delta: 44.7MB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. [2022-11-25 15:36:23,125 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 146.8MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:36:23,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.10ms. Allocated memory is still 234.9MB. Free memory was 191.5MB in the beginning and 181.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 15:36:23,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.05ms. Allocated memory is still 234.9MB. Free memory was 181.7MB in the beginning and 180.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:36:23,128 INFO L158 Benchmark]: Boogie Preprocessor took 37.26ms. Allocated memory is still 234.9MB. Free memory was 180.2MB in the beginning and 179.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:36:23,129 INFO L158 Benchmark]: RCFGBuilder took 308.75ms. Allocated memory is still 234.9MB. Free memory was 179.0MB in the beginning and 167.6MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 15:36:23,129 INFO L158 Benchmark]: TraceAbstraction took 10438.35ms. Allocated memory was 234.9MB in the beginning and 283.1MB in the end (delta: 48.2MB). Free memory was 167.0MB in the beginning and 148.9MB in the end (delta: 18.1MB). Peak memory consumption was 132.0MB. Max. memory is 16.1GB. [2022-11-25 15:36:23,130 INFO L158 Benchmark]: Witness Printer took 57.27ms. Allocated memory is still 283.1MB. Free memory was 148.9MB in the beginning and 146.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:36:23,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 146.8MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.10ms. Allocated memory is still 234.9MB. Free memory was 191.5MB in the beginning and 181.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.05ms. Allocated memory is still 234.9MB. Free memory was 181.7MB in the beginning and 180.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.26ms. Allocated memory is still 234.9MB. Free memory was 180.2MB in the beginning and 179.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.75ms. Allocated memory is still 234.9MB. Free memory was 179.0MB in the beginning and 167.6MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10438.35ms. Allocated memory was 234.9MB in the beginning and 283.1MB in the end (delta: 48.2MB). Free memory was 167.0MB in the beginning and 148.9MB in the end (delta: 18.1MB). Peak memory consumption was 132.0MB. Max. memory is 16.1GB. * Witness Printer took 57.27ms. Allocated memory is still 283.1MB. Free memory was 148.9MB in the beginning and 146.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 14, TraceHistogramMax: 72, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 567 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 308 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 276 IncrementalHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 259 mSDtfsCounter, 276 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 965 GetRequests, 889 SyntacticMatches, 8 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred in iteration=12, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 372 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 110 NumberOfFragments, 246 HoareAnnotationTreeSize, 5 FomulaSimplifications, 1917 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 5 FomulaSimplificationsInter, 8038 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1589 NumberOfCodeBlocks, 1589 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1855 ConstructedInterpolants, 0 QuantifiedInterpolants, 3821 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1319 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 26 InterpolantComputations, 10 PerfectInterpolantSequences, 35864/39469 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (a < 6 && (((((c == 0 && 1 <= d) && 0 <= a) || (((c <= 5 && 1 <= c) && 1 <= d) && 0 <= a)) && b == 0) || (((((c == 0 && 1 <= d) && 0 <= a) || (((c <= 5 && 1 <= c) && 1 <= d) && 0 <= a)) && b <= 5) && 1 <= b))) || (a < 6 && ((((((c <= 5 && b == 0) && 1 <= c) && d == 0) && 0 <= a) || (((c == 0 && b == 0) && d == 0) && 0 <= a)) || ((((((c <= 5 && 1 <= c) && d == 0) && 0 <= a) || ((c == 0 && d == 0) && 0 <= a)) && b <= 5) && 1 <= b))) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((1 <= c && a < 6) && 1 <= b) && 1 <= d) && 0 <= a) || ((((b == 0 && 1 <= c) && a < 6) && 1 <= d) && 0 <= a) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((1 <= c && 1 <= b) && 1 <= d) && 0 <= a - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (a < 6 && ((((c == 0 && b == 0) && 1 <= d) && 0 <= a) || ((((c == 0 && b <= 5) && 1 <= b) && 1 <= d) && 0 <= a))) || ((((((1 <= c && b <= 5) && 1 <= b) && 1 <= d) && 0 <= a) || (((b == 0 && 1 <= c) && 1 <= d) && 0 <= a)) && a < 6) RESULT: Ultimate proved your program to be correct! [2022-11-25 15:36:23,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b96dc4c1-1777-4599-8984-6a259b4e4429/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE