./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_i10_o10-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i10_o10-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro --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 9dc175bed280c85fbc7018a36f57353cd7d8c459346c67f95db055f6ec935a28 --- 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-8393723 [2022-11-18 20:27:54,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:27:54,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:27:54,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:27:54,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:27:54,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:27:54,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:27:54,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:27:54,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:27:54,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:27:54,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:27:54,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:27:54,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:27:54,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:27:54,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:27:54,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:27:54,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:27:54,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:27:54,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:27:54,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:27:54,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:27:54,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:27:54,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:27:54,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:27:54,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:27:54,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:27:54,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:27:54,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:27:54,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:27:54,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:27:54,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:27:54,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:27:54,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:27:54,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:27:54,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:27:54,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:27:54,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:27:54,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:27:54,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:27:54,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:27:54,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:27:54,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:27:54,510 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:27:54,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:27:54,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:27:54,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:27:54,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:27:54,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:27:54,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:27:54,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:27:54,515 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:27:54,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:27:54,516 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:27:54,517 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:27:54,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:27:54,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:27:54,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:27:54,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:27:54,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:27:54,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:27:54,518 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:27:54,519 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:27:54,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:27:54,519 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:27:54,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:27:54,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:27:54,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:27:54,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:27:54,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:27:54,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:27:54,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:27:54,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:27:54,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:27:54,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:27:54,524 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:27:54,525 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:27:54,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:27:54,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9dc175bed280c85fbc7018a36f57353cd7d8c459346c67f95db055f6ec935a28 [2022-11-18 20:27:54,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:27:54,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:27:54,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:27:54,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:27:54,919 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:27:54,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/recursive-simple/id_i10_o10-1.c [2022-11-18 20:27:54,991 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/data/82cd26912/4fbcee74b5e74744ba58d672e82ba893/FLAGc631750c6 [2022-11-18 20:27:55,509 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:27:55,509 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/sv-benchmarks/c/recursive-simple/id_i10_o10-1.c [2022-11-18 20:27:55,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/data/82cd26912/4fbcee74b5e74744ba58d672e82ba893/FLAGc631750c6 [2022-11-18 20:27:55,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/data/82cd26912/4fbcee74b5e74744ba58d672e82ba893 [2022-11-18 20:27:55,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:27:55,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:27:55,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:27:55,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:27:55,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:27:55,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:27:55" (1/1) ... [2022-11-18 20:27:55,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222cae86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:55, skipping insertion in model container [2022-11-18 20:27:55,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:27:55" (1/1) ... [2022-11-18 20:27:55,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:27:55,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:27:56,209 WARN L234 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_5eb1941d-5051-47c3-8df4-1c205e38bb08/sv-benchmarks/c/recursive-simple/id_i10_o10-1.c[454,467] [2022-11-18 20:27:56,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:27:56,241 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:27:56,260 WARN L234 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_5eb1941d-5051-47c3-8df4-1c205e38bb08/sv-benchmarks/c/recursive-simple/id_i10_o10-1.c[454,467] [2022-11-18 20:27:56,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:27:56,277 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:27:56,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56 WrapperNode [2022-11-18 20:27:56,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:27:56,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:27:56,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:27:56,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:27:56,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (1/1) ... [2022-11-18 20:27:56,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (1/1) ... [2022-11-18 20:27:56,323 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-18 20:27:56,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:27:56,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:27:56,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:27:56,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:27:56,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (1/1) ... [2022-11-18 20:27:56,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (1/1) ... [2022-11-18 20:27:56,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (1/1) ... [2022-11-18 20:27:56,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (1/1) ... [2022-11-18 20:27:56,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (1/1) ... [2022-11-18 20:27:56,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (1/1) ... [2022-11-18 20:27:56,346 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (1/1) ... [2022-11-18 20:27:56,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (1/1) ... [2022-11-18 20:27:56,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:27:56,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:27:56,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:27:56,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:27:56,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (1/1) ... [2022-11-18 20:27:56,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:27:56,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:27:56,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:27:56,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:27:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:27:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:27:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:27:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:27:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-11-18 20:27:56,456 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-11-18 20:27:56,537 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:27:56,541 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:27:56,671 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:27:56,681 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:27:56,683 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:27:56,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:27:56 BoogieIcfgContainer [2022-11-18 20:27:56,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:27:56,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:27:56,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:27:56,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:27:56,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:27:55" (1/3) ... [2022-11-18 20:27:56,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689886ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:27:56, skipping insertion in model container [2022-11-18 20:27:56,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:56" (2/3) ... [2022-11-18 20:27:56,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689886ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:27:56, skipping insertion in model container [2022-11-18 20:27:56,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:27:56" (3/3) ... [2022-11-18 20:27:56,701 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i10_o10-1.c [2022-11-18 20:27:56,735 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:27:56,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 20:27:56,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:27:56,832 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;@763f4981, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:27:56,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 20:27:56,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:27:56,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:27:56,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:27:56,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:27:56,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:27:56,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:56,868 INFO L85 PathProgramCache]: Analyzing trace with hash 890289268, now seen corresponding path program 1 times [2022-11-18 20:27:56,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:56,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653247351] [2022-11-18 20:27:56,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:56,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:57,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:57,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:57,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653247351] [2022-11-18 20:27:57,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653247351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:57,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:57,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:27:57,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292166448] [2022-11-18 20:27:57,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:57,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:27:57,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:57,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:27:57,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:27:57,230 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:57,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:27:57,311 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-11-18 20:27:57,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:27:57,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 20:27:57,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:27:57,324 INFO L225 Difference]: With dead ends: 26 [2022-11-18 20:27:57,324 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 20:27:57,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:27:57,332 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:27:57,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 36 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:27:57,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 20:27:57,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 20:27:57,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:27:57,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-11-18 20:27:57,402 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2022-11-18 20:27:57,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:27:57,403 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-11-18 20:27:57,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:57,405 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-11-18 20:27:57,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:27:57,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:27:57,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:27:57,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:27:57,406 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:27:57,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:57,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1829163585, now seen corresponding path program 1 times [2022-11-18 20:27:57,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:57,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735792515] [2022-11-18 20:27:57,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:57,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:57,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:57,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:57,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735792515] [2022-11-18 20:27:57,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735792515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:57,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:57,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:27:57,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357606619] [2022-11-18 20:27:57,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:57,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:27:57,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:57,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:27:57,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:27:57,595 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:57,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:27:57,702 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-11-18 20:27:57,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:27:57,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 20:27:57,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:27:57,705 INFO L225 Difference]: With dead ends: 31 [2022-11-18 20:27:57,705 INFO L226 Difference]: Without dead ends: 26 [2022-11-18 20:27:57,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:27:57,708 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:27:57,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 50 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:27:57,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-18 20:27:57,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-18 20:27:57,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:27:57,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-18 20:27:57,730 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2022-11-18 20:27:57,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:27:57,731 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-18 20:27:57,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:57,733 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-18 20:27:57,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:27:57,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:27:57,738 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:27:57,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:27:57,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:27:57,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:57,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1830524380, now seen corresponding path program 1 times [2022-11-18 20:27:57,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:57,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665011102] [2022-11-18 20:27:57,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:57,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:57,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:57,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665011102] [2022-11-18 20:27:57,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665011102] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:27:57,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881755908] [2022-11-18 20:27:57,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:57,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:27:57,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:27:57,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:27:57,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:27:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:58,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:27:58,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:27:58,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:58,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:27:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:27:58,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881755908] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:27:58,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:27:58,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-18 20:27:58,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829960004] [2022-11-18 20:27:58,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:27:58,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:27:58,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:58,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:27:58,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:27:58,267 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:58,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:27:58,531 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2022-11-18 20:27:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:27:58,532 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 20:27:58,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:27:58,535 INFO L225 Difference]: With dead ends: 74 [2022-11-18 20:27:58,535 INFO L226 Difference]: Without dead ends: 66 [2022-11-18 20:27:58,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:27:58,538 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 110 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:27:58,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 89 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:27:58,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-18 20:27:58,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2022-11-18 20:27:58,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 20:27:58,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2022-11-18 20:27:58,556 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 12 [2022-11-18 20:27:58,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:27:58,557 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2022-11-18 20:27:58,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:27:58,557 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2022-11-18 20:27:58,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:27:58,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:27:58,559 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:27:58,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:27:58,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-18 20:27:58,765 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:27:58,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:58,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1359868900, now seen corresponding path program 1 times [2022-11-18 20:27:58,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:58,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251846176] [2022-11-18 20:27:58,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:58,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:58,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:27:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:58,880 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:27:58,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:58,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251846176] [2022-11-18 20:27:58,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251846176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:27:58,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:27:58,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:27:58,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989084694] [2022-11-18 20:27:58,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:27:58,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:27:58,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:58,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:27:58,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:27:58,885 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:27:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:27:58,909 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2022-11-18 20:27:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:27:58,910 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-18 20:27:58,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:27:58,913 INFO L225 Difference]: With dead ends: 74 [2022-11-18 20:27:58,913 INFO L226 Difference]: Without dead ends: 72 [2022-11-18 20:27:58,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:27:58,915 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:27:58,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:27:58,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-18 20:27:58,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-18 20:27:58,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2022-11-18 20:27:58,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2022-11-18 20:27:58,934 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2022-11-18 20:27:58,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:27:58,934 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2022-11-18 20:27:58,935 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:27:58,935 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2022-11-18 20:27:58,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:27:58,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:27:58,936 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:27:58,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:27:58,937 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:27:58,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:27:58,938 INFO L85 PathProgramCache]: Analyzing trace with hash -2128706883, now seen corresponding path program 1 times [2022-11-18 20:27:58,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:27:58,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560458984] [2022-11-18 20:27:58,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:58,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:27:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:59,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:27:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:59,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:27:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:59,115 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 20:27:59,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:27:59,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560458984] [2022-11-18 20:27:59,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560458984] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:27:59,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571585594] [2022-11-18 20:27:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:27:59,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:27:59,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:27:59,118 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:27:59,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:27:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:27:59,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:27:59,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:27:59,363 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:27:59,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:27:59,767 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:27:59,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571585594] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:27:59,775 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:27:59,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 18 [2022-11-18 20:27:59,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826098101] [2022-11-18 20:27:59,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:27:59,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:27:59,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:27:59,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:27:59,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:27:59,786 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-18 20:28:00,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:00,187 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-11-18 20:28:00,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:28:00,188 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 24 [2022-11-18 20:28:00,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:00,198 INFO L225 Difference]: With dead ends: 101 [2022-11-18 20:28:00,198 INFO L226 Difference]: Without dead ends: 79 [2022-11-18 20:28:00,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2022-11-18 20:28:00,206 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 115 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:00,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 91 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:28:00,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-18 20:28:00,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2022-11-18 20:28:00,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 56 states have internal predecessors, (67), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (10), 10 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 20:28:00,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2022-11-18 20:28:00,230 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 24 [2022-11-18 20:28:00,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:00,230 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2022-11-18 20:28:00,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-18 20:28:00,231 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2022-11-18 20:28:00,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 20:28:00,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:00,232 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-18 20:28:00,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:00,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:00,439 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:28:00,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:00,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1294342655, now seen corresponding path program 2 times [2022-11-18 20:28:00,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:00,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998517255] [2022-11-18 20:28:00,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:00,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:00,687 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:00,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:00,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998517255] [2022-11-18 20:28:00,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998517255] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:28:00,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637065185] [2022-11-18 20:28:00,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:28:00,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:00,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:00,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:28:00,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:28:00,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:28:00,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:28:00,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:28:00,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:00,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:28:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:01,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637065185] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:28:01,111 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:28:01,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-18 20:28:01,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460941707] [2022-11-18 20:28:01,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:28:01,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 20:28:01,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:01,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 20:28:01,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:28:01,123 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:01,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:01,660 INFO L93 Difference]: Finished difference Result 220 states and 236 transitions. [2022-11-18 20:28:01,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 20:28:01,661 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-18 20:28:01,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:01,666 INFO L225 Difference]: With dead ends: 220 [2022-11-18 20:28:01,666 INFO L226 Difference]: Without dead ends: 197 [2022-11-18 20:28:01,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=389, Invalid=1017, Unknown=0, NotChecked=0, Total=1406 [2022-11-18 20:28:01,671 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 304 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:01,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 202 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:28:01,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-18 20:28:01,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 177. [2022-11-18 20:28:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 139 states have (on average 1.2014388489208634) internal successors, (167), 139 states have internal predecessors, (167), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-11-18 20:28:01,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 205 transitions. [2022-11-18 20:28:01,724 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 205 transitions. Word has length 27 [2022-11-18 20:28:01,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:01,724 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 205 transitions. [2022-11-18 20:28:01,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 14 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:01,725 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 205 transitions. [2022-11-18 20:28:01,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-18 20:28:01,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:01,726 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:01,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:01,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:01,935 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:28:01,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:01,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1697859681, now seen corresponding path program 1 times [2022-11-18 20:28:01,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:01,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512893333] [2022-11-18 20:28:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:01,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:01,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 20:28:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:01,987 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-18 20:28:01,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:01,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512893333] [2022-11-18 20:28:01,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512893333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:01,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:01,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:01,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272146179] [2022-11-18 20:28:01,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:01,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:28:01,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:01,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:28:01,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:01,990 INFO L87 Difference]: Start difference. First operand 177 states and 205 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:28:02,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:02,022 INFO L93 Difference]: Finished difference Result 177 states and 205 transitions. [2022-11-18 20:28:02,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:28:02,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-11-18 20:28:02,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:02,027 INFO L225 Difference]: With dead ends: 177 [2022-11-18 20:28:02,027 INFO L226 Difference]: Without dead ends: 175 [2022-11-18 20:28:02,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:28:02,032 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:02,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:28:02,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-18 20:28:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-11-18 20:28:02,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.1231884057971016) internal successors, (155), 137 states have internal predecessors, (155), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-11-18 20:28:02,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 193 transitions. [2022-11-18 20:28:02,065 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 193 transitions. Word has length 40 [2022-11-18 20:28:02,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:02,065 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-11-18 20:28:02,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:28:02,066 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 193 transitions. [2022-11-18 20:28:02,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 20:28:02,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:02,067 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:28:02,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:28:02,068 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:28:02,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:02,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1883083449, now seen corresponding path program 2 times [2022-11-18 20:28:02,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:02,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547385288] [2022-11-18 20:28:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:02,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:02,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 20:28:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:02,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 62 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 20:28:02,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:02,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547385288] [2022-11-18 20:28:02,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547385288] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:28:02,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413761193] [2022-11-18 20:28:02,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:28:02,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:02,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:02,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:28:02,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:28:02,485 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:28:02,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:28:02,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 20:28:02,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:28:02,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:28:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 66 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:28:03,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413761193] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:28:03,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:28:03,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 15] total 26 [2022-11-18 20:28:03,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883607025] [2022-11-18 20:28:03,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:28:03,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 20:28:03,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:03,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 20:28:03,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2022-11-18 20:28:03,210 INFO L87 Difference]: Start difference. First operand 175 states and 193 transitions. Second operand has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-18 20:28:03,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:03,593 INFO L93 Difference]: Finished difference Result 224 states and 241 transitions. [2022-11-18 20:28:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:28:03,594 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) Word has length 44 [2022-11-18 20:28:03,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:03,595 INFO L225 Difference]: With dead ends: 224 [2022-11-18 20:28:03,596 INFO L226 Difference]: Without dead ends: 157 [2022-11-18 20:28:03,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=278, Invalid=982, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 20:28:03,598 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 179 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:03,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 315 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:28:03,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-18 20:28:03,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 139. [2022-11-18 20:28:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.1181818181818182) internal successors, (123), 109 states have internal predecessors, (123), 12 states have call successors, (12), 11 states have call predecessors, (12), 15 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2022-11-18 20:28:03,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2022-11-18 20:28:03,613 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 44 [2022-11-18 20:28:03,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:03,613 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2022-11-18 20:28:03,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.5) internal successors, (60), 20 states have internal predecessors, (60), 12 states have call successors, (12), 7 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-11-18 20:28:03,614 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2022-11-18 20:28:03,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-18 20:28:03,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:03,616 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-11-18 20:28:03,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:03,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:03,822 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:28:03,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:03,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1160556449, now seen corresponding path program 3 times [2022-11-18 20:28:03,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:03,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21517941] [2022-11-18 20:28:03,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:03,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:04,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:04,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21517941] [2022-11-18 20:28:04,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21517941] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:28:04,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903865933] [2022-11-18 20:28:04,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:28:04,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:04,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:04,392 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:28:04,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:28:04,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 20:28:04,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:28:04,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 20:28:04,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:04,623 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:04,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:28:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:05,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903865933] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:28:05,434 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:28:05,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-18 20:28:05,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084402277] [2022-11-18 20:28:05,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:28:05,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-18 20:28:05,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:05,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-18 20:28:05,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 20:28:05,438 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:05,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:05,980 INFO L93 Difference]: Finished difference Result 185 states and 194 transitions. [2022-11-18 20:28:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:28:05,981 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-11-18 20:28:05,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:05,983 INFO L225 Difference]: With dead ends: 185 [2022-11-18 20:28:05,983 INFO L226 Difference]: Without dead ends: 139 [2022-11-18 20:28:05,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1045, Invalid=2495, Unknown=0, NotChecked=0, Total=3540 [2022-11-18 20:28:05,992 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 269 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:05,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 365 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:28:05,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-18 20:28:06,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 129. [2022-11-18 20:28:06,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 103 states have (on average 1.1067961165048543) internal successors, (114), 101 states have internal predecessors, (114), 12 states have call successors, (12), 11 states have call predecessors, (12), 13 states have return successors, (16), 16 states have call predecessors, (16), 11 states have call successors, (16) [2022-11-18 20:28:06,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2022-11-18 20:28:06,012 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 57 [2022-11-18 20:28:06,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:06,012 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2022-11-18 20:28:06,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.022222222222222) internal successors, (91), 26 states have internal predecessors, (91), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:28:06,013 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2022-11-18 20:28:06,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-18 20:28:06,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:06,031 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:28:06,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:06,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:06,232 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:28:06,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:06,233 INFO L85 PathProgramCache]: Analyzing trace with hash -519668988, now seen corresponding path program 3 times [2022-11-18 20:28:06,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:06,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747339626] [2022-11-18 20:28:06,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:06,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:06,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-18 20:28:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:06,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:06,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:28:06,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:06,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747339626] [2022-11-18 20:28:06,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747339626] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:28:06,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381151965] [2022-11-18 20:28:06,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:28:06,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:06,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:06,509 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:28:06,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:28:06,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 20:28:06,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:28:06,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:28:06,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-18 20:28:06,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:28:06,931 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-18 20:28:06,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381151965] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:28:06,932 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:28:06,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2022-11-18 20:28:06,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634827018] [2022-11-18 20:28:06,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:28:06,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 20:28:06,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:06,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:28:06,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:28:06,936 INFO L87 Difference]: Start difference. First operand 129 states and 142 transitions. Second operand has 17 states, 16 states have (on average 2.25) internal successors, (36), 17 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-18 20:28:07,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:07,154 INFO L93 Difference]: Finished difference Result 228 states and 266 transitions. [2022-11-18 20:28:07,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:28:07,155 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.25) internal successors, (36), 17 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2022-11-18 20:28:07,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:07,161 INFO L225 Difference]: With dead ends: 228 [2022-11-18 20:28:07,162 INFO L226 Difference]: Without dead ends: 227 [2022-11-18 20:28:07,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2022-11-18 20:28:07,165 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 38 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:07,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 41 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:28:07,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-18 20:28:07,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2022-11-18 20:28:07,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 183 states have (on average 1.0601092896174864) internal successors, (194), 177 states have internal predecessors, (194), 12 states have call successors, (12), 11 states have call predecessors, (12), 31 states have return successors, (38), 38 states have call predecessors, (38), 11 states have call successors, (38) [2022-11-18 20:28:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 244 transitions. [2022-11-18 20:28:07,192 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 244 transitions. Word has length 69 [2022-11-18 20:28:07,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:07,193 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 244 transitions. [2022-11-18 20:28:07,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.25) internal successors, (36), 17 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-18 20:28:07,194 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 244 transitions. [2022-11-18 20:28:07,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-18 20:28:07,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:07,214 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-11-18 20:28:07,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-18 20:28:07,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:28:07,415 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:28:07,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:07,415 INFO L85 PathProgramCache]: Analyzing trace with hash -154574268, now seen corresponding path program 4 times [2022-11-18 20:28:07,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:07,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132199654] [2022-11-18 20:28:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:07,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 20:28:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:07,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:07,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:07,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:07,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:07,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:08,044 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 10 proven. 99 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 20:28:08,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:08,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132199654] [2022-11-18 20:28:08,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132199654] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:28:08,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597830156] [2022-11-18 20:28:08,045 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:28:08,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:08,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:08,047 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:28:08,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:28:08,133 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:28:08,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:28:08,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 20:28:08,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-18 20:28:08,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:28:10,067 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-18 20:28:10,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597830156] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:28:10,067 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:28:10,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2022-11-18 20:28:10,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596182643] [2022-11-18 20:28:10,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:28:10,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-18 20:28:10,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:10,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-18 20:28:10,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2022-11-18 20:28:10,071 INFO L87 Difference]: Start difference. First operand 227 states and 244 transitions. Second operand has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:28:10,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:10,593 INFO L93 Difference]: Finished difference Result 614 states and 715 transitions. [2022-11-18 20:28:10,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 20:28:10,594 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 89 [2022-11-18 20:28:10,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:10,597 INFO L225 Difference]: With dead ends: 614 [2022-11-18 20:28:10,597 INFO L226 Difference]: Without dead ends: 378 [2022-11-18 20:28:10,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=751, Invalid=2909, Unknown=0, NotChecked=0, Total=3660 [2022-11-18 20:28:10,600 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 85 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:10,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 73 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:28:10,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-11-18 20:28:10,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2022-11-18 20:28:10,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 305 states have (on average 1.0360655737704918) internal successors, (316), 296 states have internal predecessors, (316), 12 states have call successors, (12), 11 states have call predecessors, (12), 60 states have return successors, (70), 70 states have call predecessors, (70), 11 states have call successors, (70) [2022-11-18 20:28:10,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 398 transitions. [2022-11-18 20:28:10,631 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 398 transitions. Word has length 89 [2022-11-18 20:28:10,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:10,633 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 398 transitions. [2022-11-18 20:28:10,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-18 20:28:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 398 transitions. [2022-11-18 20:28:10,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-18 20:28:10,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:10,638 INFO L195 NwaCegarLoop]: trace histogram [27, 26, 26, 26, 26, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-11-18 20:28:10,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-18 20:28:10,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:28:10,844 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 20:28:10,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:10,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1285693380, now seen corresponding path program 5 times [2022-11-18 20:28:10,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:10,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509520355] [2022-11-18 20:28:10,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:10,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:11,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 20:28:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:11,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:12,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:12,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:12,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:12,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:13,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:13,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:13,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:13,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:13,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:13,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:13,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:14,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:28:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 26 proven. 511 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-11-18 20:28:14,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:14,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509520355] [2022-11-18 20:28:14,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509520355] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:28:14,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826009004] [2022-11-18 20:28:14,109 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:28:14,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:28:14,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:14,110 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:28:14,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:28:14,312 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 27 check-sat command(s) [2022-11-18 20:28:14,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:28:14,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-18 20:28:14,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 841 proven. 864 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-11-18 20:28:16,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:28:34,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2188 backedges. 841 proven. 1242 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-18 20:28:34,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826009004] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:28:34,816 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:28:34,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 43, 57] total 114 [2022-11-18 20:28:34,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666844053] [2022-11-18 20:28:34,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:28:34,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-11-18 20:28:34,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:34,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-11-18 20:28:34,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1383, Invalid=11499, Unknown=0, NotChecked=0, Total=12882 [2022-11-18 20:28:34,825 INFO L87 Difference]: Start difference. First operand 378 states and 398 transitions. Second operand has 114 states, 112 states have (on average 2.5625) internal successors, (287), 90 states have internal predecessors, (287), 42 states have call successors, (43), 25 states have call predecessors, (43), 30 states have return successors, (45), 30 states have call predecessors, (45), 18 states have call successors, (45) [2022-11-18 20:28:35,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:35,834 INFO L93 Difference]: Finished difference Result 382 states and 402 transitions. [2022-11-18 20:28:35,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:28:35,838 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 112 states have (on average 2.5625) internal successors, (287), 90 states have internal predecessors, (287), 42 states have call successors, (43), 25 states have call predecessors, (43), 30 states have return successors, (45), 30 states have call predecessors, (45), 18 states have call successors, (45) Word has length 209 [2022-11-18 20:28:35,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:35,838 INFO L225 Difference]: With dead ends: 382 [2022-11-18 20:28:35,839 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:28:35,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 350 SyntacticMatches, 15 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7942 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2213, Invalid=13789, Unknown=0, NotChecked=0, Total=16002 [2022-11-18 20:28:35,846 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 75 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:35,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 85 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:28:35,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:28:35,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:28:35,848 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) [2022-11-18 20:28:35,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:28:35,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 209 [2022-11-18 20:28:35,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:35,849 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:28:35,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 112 states have (on average 2.5625) internal successors, (287), 90 states have internal predecessors, (287), 42 states have call successors, (43), 25 states have call predecessors, (43), 30 states have return successors, (45), 30 states have call predecessors, (45), 18 states have call successors, (45) [2022-11-18 20:28:35,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:28:35,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:28:35,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-18 20:28:35,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-18 20:28:35,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-18 20:28:35,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-18 20:28:35,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:36,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:28:36,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:28:36,426 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:28:36,427 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:28:36,427 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:28:36,427 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:28:36,427 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-11-18 20:28:36,427 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-11-18 20:28:36,428 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~input~0#1| 10) (<= 10 |ULTIMATE.start_main_~input~0#1|)) [2022-11-18 20:28:36,428 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-11-18 20:28:36,428 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 17) no Hoare annotation was computed. [2022-11-18 20:28:36,428 INFO L899 garLoopResultBuilder]: For program point idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-18 20:28:36,428 INFO L899 garLoopResultBuilder]: For program point idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-18 20:28:36,428 INFO L899 garLoopResultBuilder]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2022-11-18 20:28:36,428 INFO L899 garLoopResultBuilder]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2022-11-18 20:28:36,429 INFO L902 garLoopResultBuilder]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2022-11-18 20:28:36,429 INFO L899 garLoopResultBuilder]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-18 20:28:36,429 INFO L899 garLoopResultBuilder]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-11-18 20:28:36,430 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-11-18 20:28:36,430 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-18 20:28:36,430 INFO L899 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-11-18 20:28:36,431 INFO L895 garLoopResultBuilder]: At program point L8-2(line 8) the Hoare annotation is: (let ((.cse0 (= |id_#in~x| id_~x))) (and (or (not (<= |id_#in~x| 0)) (not (<= 0 |id_#in~x|))) (or .cse0 (not (<= 4 |id_#in~x|)) (not (<= |id_#in~x| 10))) (or .cse0 (not (<= 2 |id_#in~x|)) (not (<= |id_#in~x| 2))) (or (not (<= 3 |id_#in~x|)) (and (<= 3 id_~x) (<= id_~x 3)) (not (<= |id_#in~x| 3))) (or (not (<= |id_#in~x| 1)) .cse0 (not (<= 1 |id_#in~x|))))) [2022-11-18 20:28:36,431 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2022-11-18 20:28:36,431 INFO L899 garLoopResultBuilder]: For program point L8-4(line 8) no Hoare annotation was computed. [2022-11-18 20:28:36,431 INFO L899 garLoopResultBuilder]: For program point L8-5(line 8) no Hoare annotation was computed. [2022-11-18 20:28:36,435 INFO L444 BasicCegarLoop]: Path program histogram: [5, 3, 1, 1, 1, 1] [2022-11-18 20:28:36,438 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:28:36,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:28:36 BoogieIcfgContainer [2022-11-18 20:28:36,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:28:36,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:28:36,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:28:36,447 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:28:36,447 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:27:56" (3/4) ... [2022-11-18 20:28:36,451 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:28:36,460 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-11-18 20:28:36,465 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-18 20:28:36,466 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:28:36,466 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:28:36,466 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:28:36,503 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:28:36,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:28:36,505 INFO L158 Benchmark]: Toolchain (without parser) took 40599.54ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 110.7MB in the beginning and 250.9MB in the end (delta: -140.1MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2022-11-18 20:28:36,505 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 43.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:28:36,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.48ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 118.3MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:28:36,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.48ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 116.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:28:36,506 INFO L158 Benchmark]: Boogie Preprocessor took 24.50ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 116.1MB in the end (delta: 842.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:28:36,507 INFO L158 Benchmark]: RCFGBuilder took 338.33ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 106.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:28:36,507 INFO L158 Benchmark]: TraceAbstraction took 39754.80ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 105.7MB in the beginning and 254.0MB in the end (delta: -148.3MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2022-11-18 20:28:36,508 INFO L158 Benchmark]: Witness Printer took 57.43ms. Allocated memory is still 343.9MB. Free memory was 254.0MB in the beginning and 250.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:28:36,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 43.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.48ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 118.3MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.48ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 116.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.50ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 116.1MB in the end (delta: 842.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 338.33ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 106.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 39754.80ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 105.7MB in the beginning and 254.0MB in the end (delta: -148.3MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * Witness Printer took 57.43ms. Allocated memory is still 343.9MB. Free memory was 254.0MB in the beginning and 250.9MB in the end (delta: 3.1MB). 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: 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 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 39.6s, OverallIterations: 12, TraceHistogramMax: 27, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1255 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1221 mSDsluCounter, 1410 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1176 mSDsCounter, 298 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2235 IncrementalHoareTripleChecker+Invalid, 2533 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 298 mSolverCounterUnsat, 234 mSDtfsCounter, 2235 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1344 GetRequests, 934 SyntacticMatches, 20 SemanticMatches, 390 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10854 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378occurred in iteration=11, InterpolantAutomatonStates: 195, 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, 12 MinimizatonAttempts, 69 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 25 PreInvPairs, 25 NumberOfFragments, 70 HoareAnnotationTreeSize, 25 FomulaSimplifications, 272 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 584 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 31.5s InterpolantComputationTime, 1134 NumberOfCodeBlocks, 1094 NumberOfCodeBlocksAsserted, 61 NumberOfCheckSat, 1637 ConstructedInterpolants, 0 QuantifiedInterpolants, 4240 SizeOfPredicates, 54 NumberOfNonLiveVariables, 1088 ConjunctsInSsa, 142 ConjunctsInUnsatCore, 28 InterpolantComputations, 4 PerfectInterpolantSequences, 5538/9647 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:28:36,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb1941d-5051-47c3-8df4-1c205e38bb08/bin/uautomizer-TMbwUNV5ro/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