./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:23:22,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:23:22,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:23:22,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:23:22,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:23:22,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:23:22,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:23:22,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:23:22,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:23:22,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:23:22,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:23:22,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:23:22,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:23:22,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:23:22,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:23:22,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:23:22,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:23:22,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:23:22,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:23:22,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:23:22,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:23:22,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:23:22,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:23:22,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:23:22,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:23:22,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:23:22,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:23:22,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:23:22,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:23:22,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:23:22,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:23:22,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:23:22,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:23:22,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:23:22,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:23:22,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:23:22,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:23:22,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:23:22,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:23:22,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:23:22,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:23:22,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 18:23:22,352 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:23:22,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:23:22,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:23:22,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:23:22,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:23:22,353 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:23:22,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:23:22,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:23:22,354 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:23:22,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:23:22,355 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:23:22,355 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:23:22,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:23:22,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:23:22,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:23:22,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:23:22,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:23:22,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:23:22,357 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:23:22,357 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:23:22,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:23:22,357 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:23:22,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:23:22,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:23:22,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:23:22,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:23:22,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:23:22,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:23:22,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:23:22,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:23:22,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:23:22,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:23:22,359 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:23:22,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:23:22,360 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:23:22,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:23:22,360 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 [2022-11-25 18:23:22,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:23:22,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:23:22,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:23:22,720 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:23:22,721 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:23:22,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-11-25 18:23:25,764 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:23:26,070 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:23:26,071 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-11-25 18:23:26,078 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/data/93e118e87/e7c45e93b85a4bdfbb04b2040abb65e1/FLAG29f6c31f8 [2022-11-25 18:23:26,099 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/data/93e118e87/e7c45e93b85a4bdfbb04b2040abb65e1 [2022-11-25 18:23:26,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:23:26,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:23:26,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:23:26,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:23:26,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:23:26,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6b390a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26, skipping insertion in model container [2022-11-25 18:23:26,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:23:26,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:23:26,374 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-11-25 18:23:26,377 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-11-25 18:23:26,387 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-11-25 18:23:26,390 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-11-25 18:23:26,392 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-11-25 18:23:26,394 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-11-25 18:23:26,395 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-11-25 18:23:26,397 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-11-25 18:23:26,399 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-11-25 18:23:26,401 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-11-25 18:23:26,403 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-11-25 18:23:26,405 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-11-25 18:23:26,407 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-11-25 18:23:26,408 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-11-25 18:23:26,410 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-11-25 18:23:26,411 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-11-25 18:23:26,413 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-11-25 18:23:26,414 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-11-25 18:23:26,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:23:26,427 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:23:26,443 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-11-25 18:23:26,445 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-11-25 18:23:26,446 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-11-25 18:23:26,448 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-11-25 18:23:26,449 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-11-25 18:23:26,451 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-11-25 18:23:26,453 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-11-25 18:23:26,454 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-11-25 18:23:26,456 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-11-25 18:23:26,458 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-11-25 18:23:26,459 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-11-25 18:23:26,462 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-11-25 18:23:26,468 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-11-25 18:23:26,471 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-11-25 18:23:26,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-11-25 18:23:26,478 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-11-25 18:23:26,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-11-25 18:23:26,493 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-11-25 18:23:26,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:23:26,525 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:23:26,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26 WrapperNode [2022-11-25 18:23:26,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:23:26,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:23:26,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:23:26,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:23:26,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,578 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 254 [2022-11-25 18:23:26,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:23:26,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:23:26,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:23:26,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:23:26,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,625 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:23:26,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:23:26,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:23:26,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:23:26,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (1/1) ... [2022-11-25 18:23:26,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:23:26,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:23:26,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:23:26,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:23:26,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:23:26,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:23:26,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:23:26,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:23:26,796 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:23:26,798 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:23:27,045 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:23:27,052 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:23:27,052 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:23:27,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:23:27 BoogieIcfgContainer [2022-11-25 18:23:27,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:23:27,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:23:27,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:23:27,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:23:27,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:23:26" (1/3) ... [2022-11-25 18:23:27,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1529ca0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:23:27, skipping insertion in model container [2022-11-25 18:23:27,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:23:26" (2/3) ... [2022-11-25 18:23:27,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1529ca0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:23:27, skipping insertion in model container [2022-11-25 18:23:27,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:23:27" (3/3) ... [2022-11-25 18:23:27,065 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2022-11-25 18:23:27,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:23:27,085 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-25 18:23:27,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:23:27,188 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;@4db81c76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:23:27,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-25 18:23:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 48 states have (on average 1.8333333333333333) internal successors, (88), 58 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:27,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 18:23:27,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:27,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 18:23:27,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:27,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:27,212 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-11-25 18:23:27,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:27,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881344921] [2022-11-25 18:23:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:27,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:27,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:23:27,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881344921] [2022-11-25 18:23:27,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881344921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:23:27,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:23:27,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:23:27,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908202592] [2022-11-25 18:23:27,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:23:27,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:23:27,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:23:27,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:23:27,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:23:27,441 INFO L87 Difference]: Start difference. First operand has 59 states, 48 states have (on average 1.8333333333333333) internal successors, (88), 58 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:27,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:23:27,539 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2022-11-25 18:23:27,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:23:27,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-25 18:23:27,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:23:27,562 INFO L225 Difference]: With dead ends: 62 [2022-11-25 18:23:27,563 INFO L226 Difference]: Without dead ends: 46 [2022-11-25 18:23:27,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:23:27,573 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:23:27,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 111 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:23:27,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-25 18:23:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-25 18:23:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 45 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:27,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-11-25 18:23:27,625 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 4 [2022-11-25 18:23:27,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:23:27,625 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-11-25 18:23:27,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:27,626 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-11-25 18:23:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 18:23:27,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:27,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:23:27,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:23:27,629 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:27,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:27,630 INFO L85 PathProgramCache]: Analyzing trace with hash 28693763, now seen corresponding path program 1 times [2022-11-25 18:23:27,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:27,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638432520] [2022-11-25 18:23:27,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:27,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:27,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:27,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:23:27,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638432520] [2022-11-25 18:23:27,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638432520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:23:27,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:23:27,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:23:27,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095160044] [2022-11-25 18:23:27,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:23:27,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:23:27,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:23:27,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:23:27,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:23:27,706 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:27,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:23:27,733 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-11-25 18:23:27,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:23:27,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 18:23:27,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:23:27,735 INFO L225 Difference]: With dead ends: 46 [2022-11-25 18:23:27,735 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 18:23:27,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:23:27,737 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 44 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:23:27,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 37 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:23:27,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 18:23:27,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-25 18:23:27,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:27,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-11-25 18:23:27,744 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 5 [2022-11-25 18:23:27,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:23:27,745 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-11-25 18:23:27,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:27,746 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-11-25 18:23:27,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 18:23:27,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:27,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:23:27,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:23:27,747 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:27,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:27,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1581722771, now seen corresponding path program 1 times [2022-11-25 18:23:27,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:27,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136291305] [2022-11-25 18:23:27,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:27,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:27,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:27,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:23:27,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136291305] [2022-11-25 18:23:27,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136291305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:23:27,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:23:27,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:23:27,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383522558] [2022-11-25 18:23:27,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:23:27,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:23:27,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:23:27,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:23:27,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:23:27,878 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:27,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:23:27,967 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2022-11-25 18:23:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:23:27,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 18:23:27,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:23:27,969 INFO L225 Difference]: With dead ends: 55 [2022-11-25 18:23:27,970 INFO L226 Difference]: Without dead ends: 51 [2022-11-25 18:23:27,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:23:27,972 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:23:27,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 45 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:23:27,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-25 18:23:27,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-25 18:23:27,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 50 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:27,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2022-11-25 18:23:27,990 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 11 [2022-11-25 18:23:27,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:23:27,991 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2022-11-25 18:23:27,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:27,996 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2022-11-25 18:23:27,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 18:23:27,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:27,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:23:27,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:23:27,998 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:27,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash -439505060, now seen corresponding path program 1 times [2022-11-25 18:23:28,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:28,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270801245] [2022-11-25 18:23:28,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:28,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:28,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:23:28,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270801245] [2022-11-25 18:23:28,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270801245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:23:28,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:23:28,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:23:28,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068797147] [2022-11-25 18:23:28,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:23:28,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:23:28,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:23:28,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:23:28,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:23:28,124 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:28,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:23:28,228 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2022-11-25 18:23:28,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:23:28,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-25 18:23:28,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:23:28,230 INFO L225 Difference]: With dead ends: 51 [2022-11-25 18:23:28,230 INFO L226 Difference]: Without dead ends: 47 [2022-11-25 18:23:28,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:23:28,231 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 29 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:23:28,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 25 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:23:28,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-25 18:23:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-25 18:23:28,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 43 states have (on average 1.186046511627907) internal successors, (51), 46 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2022-11-25 18:23:28,271 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 18 [2022-11-25 18:23:28,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:23:28,271 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2022-11-25 18:23:28,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:28,272 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-11-25 18:23:28,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 18:23:28,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:28,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:23:28,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:23:28,273 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:28,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:28,274 INFO L85 PathProgramCache]: Analyzing trace with hash -739754871, now seen corresponding path program 1 times [2022-11-25 18:23:28,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:28,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132280876] [2022-11-25 18:23:28,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:28,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:28,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:28,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:23:28,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132280876] [2022-11-25 18:23:28,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132280876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:23:28,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:23:28,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:23:28,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946348229] [2022-11-25 18:23:28,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:23:28,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:23:28,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:23:28,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:23:28,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:23:28,424 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:28,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:23:28,513 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2022-11-25 18:23:28,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:23:28,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-25 18:23:28,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:23:28,516 INFO L225 Difference]: With dead ends: 76 [2022-11-25 18:23:28,516 INFO L226 Difference]: Without dead ends: 72 [2022-11-25 18:23:28,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:23:28,517 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 23 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:23:28,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 32 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:23:28,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-25 18:23:28,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-25 18:23:28,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 68 states have (on average 1.161764705882353) internal successors, (79), 71 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:28,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2022-11-25 18:23:28,526 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 19 [2022-11-25 18:23:28,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:23:28,527 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2022-11-25 18:23:28,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:28,527 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2022-11-25 18:23:28,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 18:23:28,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:28,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:23:28,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:23:28,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:28,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:28,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1470876082, now seen corresponding path program 1 times [2022-11-25 18:23:28,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:28,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170105891] [2022-11-25 18:23:28,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:28,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:28,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:28,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:23:28,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170105891] [2022-11-25 18:23:28,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170105891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:23:28,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:23:28,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:23:28,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786094498] [2022-11-25 18:23:28,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:23:28,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:23:28,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:23:28,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:23:28,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:23:28,645 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:23:28,784 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2022-11-25 18:23:28,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:23:28,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-25 18:23:28,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:23:28,788 INFO L225 Difference]: With dead ends: 102 [2022-11-25 18:23:28,788 INFO L226 Difference]: Without dead ends: 98 [2022-11-25 18:23:28,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:23:28,791 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 43 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:23:28,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 38 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:23:28,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-25 18:23:28,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-11-25 18:23:28,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 94 states have (on average 1.148936170212766) internal successors, (108), 97 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:28,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2022-11-25 18:23:28,817 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 25 [2022-11-25 18:23:28,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:23:28,817 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2022-11-25 18:23:28,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2022-11-25 18:23:28,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 18:23:28,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:28,824 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:23:28,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:23:28,825 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:28,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:28,827 INFO L85 PathProgramCache]: Analyzing trace with hash 434529609, now seen corresponding path program 1 times [2022-11-25 18:23:28,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:28,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500947753] [2022-11-25 18:23:28,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:28,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:28,971 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:28,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:23:28,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500947753] [2022-11-25 18:23:28,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500947753] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:23:28,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081943967] [2022-11-25 18:23:28,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:28,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:23:28,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:23:28,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:23:28,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:23:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:29,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 18:23:29,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:23:29,213 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:29,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:23:29,334 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:29,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081943967] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:23:29,335 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:23:29,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-25 18:23:29,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466291726] [2022-11-25 18:23:29,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:23:29,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 18:23:29,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:23:29,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 18:23:29,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:23:29,338 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:29,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:23:29,675 INFO L93 Difference]: Finished difference Result 232 states and 273 transitions. [2022-11-25 18:23:29,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:23:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-25 18:23:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:23:29,677 INFO L225 Difference]: With dead ends: 232 [2022-11-25 18:23:29,677 INFO L226 Difference]: Without dead ends: 228 [2022-11-25 18:23:29,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:23:29,678 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 190 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:23:29,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 75 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:23:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-25 18:23:29,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-11-25 18:23:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 224 states have (on average 1.1294642857142858) internal successors, (253), 227 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:29,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 253 transitions. [2022-11-25 18:23:29,701 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 253 transitions. Word has length 32 [2022-11-25 18:23:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:23:29,701 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 253 transitions. [2022-11-25 18:23:29,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:29,702 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 253 transitions. [2022-11-25 18:23:29,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-25 18:23:29,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:29,704 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:23:29,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 18:23:29,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 18:23:29,904 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:29,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:29,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2107299214, now seen corresponding path program 1 times [2022-11-25 18:23:29,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:29,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595276831] [2022-11-25 18:23:29,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:29,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:30,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:23:30,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595276831] [2022-11-25 18:23:30,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595276831] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:23:30,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001521914] [2022-11-25 18:23:30,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:30,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:23:30,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:23:30,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:23:30,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 18:23:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:30,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 18:23:30,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:23:30,425 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:30,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:23:30,670 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:30,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001521914] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:23:30,671 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:23:30,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2022-11-25 18:23:30,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78831713] [2022-11-25 18:23:30,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:23:30,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-25 18:23:30,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:23:30,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-25 18:23:30,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:23:30,675 INFO L87 Difference]: Start difference. First operand 228 states and 253 transitions. Second operand has 21 states, 20 states have (on average 6.8) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:31,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:23:31,347 INFO L93 Difference]: Finished difference Result 492 states and 583 transitions. [2022-11-25 18:23:31,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 18:23:31,348 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.8) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-11-25 18:23:31,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:23:31,351 INFO L225 Difference]: With dead ends: 492 [2022-11-25 18:23:31,351 INFO L226 Difference]: Without dead ends: 488 [2022-11-25 18:23:31,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:23:31,353 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 703 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:23:31,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 134 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 18:23:31,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-11-25 18:23:31,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2022-11-25 18:23:31,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 484 states have (on average 1.121900826446281) internal successors, (543), 487 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:31,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 543 transitions. [2022-11-25 18:23:31,389 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 543 transitions. Word has length 64 [2022-11-25 18:23:31,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:23:31,389 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 543 transitions. [2022-11-25 18:23:31,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.8) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 543 transitions. [2022-11-25 18:23:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-25 18:23:31,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:31,399 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:23:31,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:23:31,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:23:31,603 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:31,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:31,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1327453774, now seen corresponding path program 2 times [2022-11-25 18:23:31,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:31,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782122767] [2022-11-25 18:23:31,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:31,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 468 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:32,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:23:32,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782122767] [2022-11-25 18:23:32,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782122767] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:23:32,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701602335] [2022-11-25 18:23:32,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:23:32,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:23:32,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:23:32,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:23:32,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 18:23:32,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 18:23:32,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:23:32,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 18:23:32,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:23:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-11-25 18:23:32,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:23:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-11-25 18:23:33,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701602335] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:23:33,213 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:23:33,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 6, 6] total 29 [2022-11-25 18:23:33,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42574382] [2022-11-25 18:23:33,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:23:33,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-25 18:23:33,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:23:33,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-25 18:23:33,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=552, Unknown=0, NotChecked=0, Total=870 [2022-11-25 18:23:33,217 INFO L87 Difference]: Start difference. First operand 488 states and 543 transitions. Second operand has 30 states, 29 states have (on average 6.517241379310345) internal successors, (189), 30 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:36,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:23:36,526 INFO L93 Difference]: Finished difference Result 762 states and 871 transitions. [2022-11-25 18:23:36,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-11-25 18:23:36,526 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 6.517241379310345) internal successors, (189), 30 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-11-25 18:23:36,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:23:36,528 INFO L225 Difference]: With dead ends: 762 [2022-11-25 18:23:36,528 INFO L226 Difference]: Without dead ends: 179 [2022-11-25 18:23:36,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4029 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=3668, Invalid=8764, Unknown=0, NotChecked=0, Total=12432 [2022-11-25 18:23:36,534 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2904 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:23:36,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 160 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:23:36,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-25 18:23:36,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-11-25 18:23:36,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 176 states have (on average 1.0227272727272727) internal successors, (180), 178 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:36,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 180 transitions. [2022-11-25 18:23:36,542 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 180 transitions. Word has length 129 [2022-11-25 18:23:36,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:23:36,542 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 180 transitions. [2022-11-25 18:23:36,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 6.517241379310345) internal successors, (189), 30 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:36,543 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 180 transitions. [2022-11-25 18:23:36,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-25 18:23:36,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:36,544 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:23:36,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 18:23:36,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:23:36,756 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:36,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:36,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1138679105, now seen corresponding path program 1 times [2022-11-25 18:23:36,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:36,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382819960] [2022-11-25 18:23:36,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:36,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:37,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 0 proven. 1533 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:37,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:23:37,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382819960] [2022-11-25 18:23:37,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382819960] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:23:37,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303387238] [2022-11-25 18:23:37,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:37,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:23:37,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:23:37,711 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:23:37,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 18:23:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:37,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 18:23:37,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:23:38,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 0 proven. 1533 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:38,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:23:39,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 0 proven. 1533 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:39,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303387238] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:23:39,135 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:23:39,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2022-11-25 18:23:39,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360849167] [2022-11-25 18:23:39,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:23:39,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-25 18:23:39,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:23:39,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-25 18:23:39,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2022-11-25 18:23:39,146 INFO L87 Difference]: Start difference. First operand 179 states and 180 transitions. Second operand has 47 states, 46 states have (on average 7.086956521739131) internal successors, (326), 47 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:23:40,012 INFO L93 Difference]: Finished difference Result 619 states and 686 transitions. [2022-11-25 18:23:40,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:23:40,012 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 7.086956521739131) internal successors, (326), 47 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2022-11-25 18:23:40,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:23:40,014 INFO L225 Difference]: With dead ends: 619 [2022-11-25 18:23:40,014 INFO L226 Difference]: Without dead ends: 340 [2022-11-25 18:23:40,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2022-11-25 18:23:40,017 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 711 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:23:40,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 120 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 18:23:40,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-25 18:23:40,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2022-11-25 18:23:40,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 337 states have (on average 1.0118694362017804) internal successors, (341), 339 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:40,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 341 transitions. [2022-11-25 18:23:40,030 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 341 transitions. Word has length 159 [2022-11-25 18:23:40,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:23:40,030 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 341 transitions. [2022-11-25 18:23:40,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 7.086956521739131) internal successors, (326), 47 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:40,031 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 341 transitions. [2022-11-25 18:23:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-25 18:23:40,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:40,036 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:23:40,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-25 18:23:40,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 18:23:40,241 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:40,242 INFO L85 PathProgramCache]: Analyzing trace with hash -140856590, now seen corresponding path program 2 times [2022-11-25 18:23:40,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:40,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417132321] [2022-11-25 18:23:40,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:40,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:23:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 6754 backedges. 0 proven. 6754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:43,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:23:43,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417132321] [2022-11-25 18:23:43,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417132321] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:23:43,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123350803] [2022-11-25 18:23:43,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:23:43,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:23:43,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:23:43,267 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:23:43,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 18:23:43,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:23:43,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:23:43,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-25 18:23:43,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:23:44,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6754 backedges. 0 proven. 6754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:44,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:23:47,239 INFO L134 CoverageAnalysis]: Checked inductivity of 6754 backedges. 0 proven. 6754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:23:47,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123350803] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:23:47,239 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:23:47,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 92 [2022-11-25 18:23:47,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150135975] [2022-11-25 18:23:47,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:23:47,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-11-25 18:23:47,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:23:47,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-11-25 18:23:47,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2022-11-25 18:23:47,247 INFO L87 Difference]: Start difference. First operand 340 states and 341 transitions. Second operand has 93 states, 92 states have (on average 7.043478260869565) internal successors, (648), 93 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:49,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:23:49,157 INFO L93 Difference]: Finished difference Result 1217 states and 1353 transitions. [2022-11-25 18:23:49,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-11-25 18:23:49,158 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 92 states have (on average 7.043478260869565) internal successors, (648), 93 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 320 [2022-11-25 18:23:49,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:23:49,162 INFO L225 Difference]: With dead ends: 1217 [2022-11-25 18:23:49,162 INFO L226 Difference]: Without dead ends: 662 [2022-11-25 18:23:49,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 593 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2022-11-25 18:23:49,166 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1563 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:23:49,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 206 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 18:23:49,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-11-25 18:23:49,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2022-11-25 18:23:49,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 659 states have (on average 1.0060698027314112) internal successors, (663), 661 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:49,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 663 transitions. [2022-11-25 18:23:49,195 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 663 transitions. Word has length 320 [2022-11-25 18:23:49,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:23:49,196 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 663 transitions. [2022-11-25 18:23:49,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 92 states have (on average 7.043478260869565) internal successors, (648), 93 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:23:49,196 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 663 transitions. [2022-11-25 18:23:49,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2022-11-25 18:23:49,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:23:49,213 INFO L195 NwaCegarLoop]: trace histogram [91, 91, 90, 90, 90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:23:49,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 18:23:49,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 18:23:49,425 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:23:49,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:23:49,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1419193554, now seen corresponding path program 3 times [2022-11-25 18:23:49,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:23:49,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202567085] [2022-11-25 18:23:49,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:23:49,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:23:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 28305 backedges. 0 proven. 28305 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:00,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:00,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202567085] [2022-11-25 18:24:00,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202567085] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:24:00,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468198517] [2022-11-25 18:24:00,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 18:24:00,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:24:00,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:24:00,019 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:24:00,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 18:24:00,154 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 18:24:00,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:24:00,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 18:24:00,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:24:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 28305 backedges. 178 proven. 359 refuted. 0 times theorem prover too weak. 27768 trivial. 0 not checked. [2022-11-25 18:24:01,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:24:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 28305 backedges. 0 proven. 537 refuted. 0 times theorem prover too weak. 27768 trivial. 0 not checked. [2022-11-25 18:24:02,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468198517] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:24:02,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:24:02,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 6, 6] total 101 [2022-11-25 18:24:02,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653374797] [2022-11-25 18:24:02,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:24:02,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-11-25 18:24:02,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:02,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-11-25 18:24:02,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4674, Invalid=5628, Unknown=0, NotChecked=0, Total=10302 [2022-11-25 18:24:02,788 INFO L87 Difference]: Start difference. First operand 662 states and 663 transitions. Second operand has 102 states, 101 states have (on average 6.792079207920792) internal successors, (686), 102 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:24:17,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:17,444 INFO L93 Difference]: Finished difference Result 705 states and 710 transitions. [2022-11-25 18:24:17,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2022-11-25 18:24:17,445 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 101 states have (on average 6.792079207920792) internal successors, (686), 102 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 642 [2022-11-25 18:24:17,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:17,453 INFO L225 Difference]: With dead ends: 705 [2022-11-25 18:24:17,454 INFO L226 Difference]: Without dead ends: 666 [2022-11-25 18:24:17,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1563 GetRequests, 1273 SyntacticMatches, 1 SemanticMatches, 289 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22334 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=27867, Invalid=56523, Unknown=0, NotChecked=0, Total=84390 [2022-11-25 18:24:17,465 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1067 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:17,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 34 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:24:17,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-11-25 18:24:17,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 664. [2022-11-25 18:24:17,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 663 states have (on average 1.0015082956259427) internal successors, (664), 663 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:24:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 664 transitions. [2022-11-25 18:24:17,489 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 664 transitions. Word has length 642 [2022-11-25 18:24:17,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:17,490 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 664 transitions. [2022-11-25 18:24:17,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 101 states have (on average 6.792079207920792) internal successors, (686), 102 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:24:17,491 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 664 transitions. [2022-11-25 18:24:17,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2022-11-25 18:24:17,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:17,506 INFO L195 NwaCegarLoop]: trace histogram [92, 92, 92, 92, 91, 91, 91, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:17,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-25 18:24:17,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 18:24:17,711 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:24:17,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:17,712 INFO L85 PathProgramCache]: Analyzing trace with hash -204675097, now seen corresponding path program 1 times [2022-11-25 18:24:17,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:17,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128304640] [2022-11-25 18:24:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:17,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 29120 backedges. 0 proven. 29120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:26,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:26,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128304640] [2022-11-25 18:24:26,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128304640] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:24:26,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142202782] [2022-11-25 18:24:26,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:26,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:24:26,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:24:26,599 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:24:26,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 18:24:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:27,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-25 18:24:27,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:24:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 29120 backedges. 0 proven. 29120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:28,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:24:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 29120 backedges. 0 proven. 29120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:39,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142202782] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:24:39,486 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:24:39,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2022-11-25 18:24:39,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002934863] [2022-11-25 18:24:39,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:24:39,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2022-11-25 18:24:39,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:39,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2022-11-25 18:24:39,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18145, Invalid=18145, Unknown=0, NotChecked=0, Total=36290 [2022-11-25 18:24:39,498 INFO L87 Difference]: Start difference. First operand 664 states and 664 transitions. Second operand has 191 states, 190 states have (on average 7.021052631578947) internal successors, (1334), 191 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:24:47,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:47,962 INFO L93 Difference]: Finished difference Result 2487 states and 2582 transitions. [2022-11-25 18:24:47,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-11-25 18:24:47,963 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 7.021052631578947) internal successors, (1334), 191 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 663 [2022-11-25 18:24:47,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:47,969 INFO L225 Difference]: With dead ends: 2487 [2022-11-25 18:24:47,969 INFO L226 Difference]: Without dead ends: 1346 [2022-11-25 18:24:47,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1419 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=18145, Invalid=18145, Unknown=0, NotChecked=0, Total=36290 [2022-11-25 18:24:47,974 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3483 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3483 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 2478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:47,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3483 Valid, 407 Invalid, 2478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 2163 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 18:24:47,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-11-25 18:24:48,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1329. [2022-11-25 18:24:48,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1329 states, 1328 states have (on average 1.0007530120481927) internal successors, (1329), 1328 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:24:48,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 1329 transitions. [2022-11-25 18:24:48,017 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 1329 transitions. Word has length 663 [2022-11-25 18:24:48,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:48,018 INFO L495 AbstractCegarLoop]: Abstraction has 1329 states and 1329 transitions. [2022-11-25 18:24:48,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 7.021052631578947) internal successors, (1334), 191 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:24:48,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 1329 transitions. [2022-11-25 18:24:48,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1329 [2022-11-25 18:24:48,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:48,035 INFO L195 NwaCegarLoop]: trace histogram [187, 187, 187, 187, 186, 186, 186, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:48,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 18:24:48,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:24:48,243 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 18:24:48,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:48,244 INFO L85 PathProgramCache]: Analyzing trace with hash -835504360, now seen corresponding path program 2 times [2022-11-25 18:24:48,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:48,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064299156] [2022-11-25 18:24:48,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:48,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:25,988 INFO L134 CoverageAnalysis]: Checked inductivity of 121365 backedges. 0 proven. 121365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:25,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:25,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064299156] [2022-11-25 18:25:25,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064299156] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:25:25,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009937404] [2022-11-25 18:25:25,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:25:25,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:25:25,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:25:25,991 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:25:25,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 18:25:26,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 18:25:26,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:25:26,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 18:25:26,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:25:28,441 INFO L134 CoverageAnalysis]: Checked inductivity of 121365 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 121365 trivial. 0 not checked. [2022-11-25 18:25:28,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:25:28,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009937404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:28,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:25:28,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [190] total 195 [2022-11-25 18:25:28,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798532196] [2022-11-25 18:25:28,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:28,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:25:28,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:28,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:25:28,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18347, Invalid=19873, Unknown=0, NotChecked=0, Total=38220 [2022-11-25 18:25:28,450 INFO L87 Difference]: Start difference. First operand 1329 states and 1329 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:29,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:29,051 INFO L93 Difference]: Finished difference Result 1329 states and 1329 transitions. [2022-11-25 18:25:29,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:25:29,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1328 [2022-11-25 18:25:29,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:25:29,054 INFO L225 Difference]: With dead ends: 1329 [2022-11-25 18:25:29,054 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 18:25:29,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1522 GetRequests, 1323 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=18382, Invalid=21818, Unknown=0, NotChecked=0, Total=40200 [2022-11-25 18:25:29,060 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:25:29,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 17 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:25:29,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 18:25:29,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 18:25:29,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:29,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 18:25:29,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1328 [2022-11-25 18:25:29,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:25:29,062 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:25:29,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:25:29,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 18:25:29,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 18:25:29,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-25 18:25:29,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-25 18:25:29,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-25 18:25:29,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-25 18:25:29,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-25 18:25:29,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-25 18:25:29,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-25 18:25:29,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-25 18:25:29,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-25 18:25:29,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-25 18:25:29,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 18:25:29,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 18:25:29,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 18:25:34,682 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-11-25 18:25:34,682 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 242) no Hoare annotation was computed. [2022-11-25 18:25:34,682 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-11-25 18:25:34,682 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-25 18:25:34,683 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 18:25:34,683 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-11-25 18:25:34,684 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 18:25:34,684 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-11-25 18:25:34,684 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2022-11-25 18:25:34,684 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 401) no Hoare annotation was computed. [2022-11-25 18:25:34,684 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 391) no Hoare annotation was computed. [2022-11-25 18:25:34,684 INFO L902 garLoopResultBuilder]: At program point L400(lines 15 402) the Hoare annotation is: true [2022-11-25 18:25:34,685 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-11-25 18:25:34,685 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 94) no Hoare annotation was computed. [2022-11-25 18:25:34,685 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-11-25 18:25:34,685 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-25 18:25:34,685 INFO L899 garLoopResultBuilder]: For program point L194-1(line 194) no Hoare annotation was computed. [2022-11-25 18:25:34,686 INFO L895 garLoopResultBuilder]: At program point L384(lines 282 391) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646)) (.cse1 (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (or (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1| 1) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1| 0)) .cse1 (<= |ULTIMATE.start_main_~main__t~0#1| 2147483645)) (and .cse0 (= |ULTIMATE.start_main_~main__t~0#1| 0) .cse1))) [2022-11-25 18:25:34,686 INFO L895 garLoopResultBuilder]: At program point L351(lines 32 395) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646)) (.cse1 (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)))) (or (and (<= |ULTIMATE.start_main_~main__t~0#1| 2147483646) .cse0 (<= 1 |ULTIMATE.start_main_~main__t~0#1|) .cse1) (and .cse0 (= |ULTIMATE.start_main_~main__t~0#1| 0) .cse1))) [2022-11-25 18:25:34,686 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 196) no Hoare annotation was computed. [2022-11-25 18:25:34,686 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 385) no Hoare annotation was computed. [2022-11-25 18:25:34,686 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 352) no Hoare annotation was computed. [2022-11-25 18:25:34,687 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 203) no Hoare annotation was computed. [2022-11-25 18:25:34,687 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 287) no Hoare annotation was computed. [2022-11-25 18:25:34,687 INFO L895 garLoopResultBuilder]: At program point L195(lines 56 253) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~main__t~0#1|)) [2022-11-25 18:25:34,687 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 209) no Hoare annotation was computed. [2022-11-25 18:25:34,687 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 255) no Hoare annotation was computed. [2022-11-25 18:25:34,687 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 317) no Hoare annotation was computed. [2022-11-25 18:25:34,687 INFO L899 garLoopResultBuilder]: For program point L287(line 287) no Hoare annotation was computed. [2022-11-25 18:25:34,688 INFO L899 garLoopResultBuilder]: For program point L287-1(line 287) no Hoare annotation was computed. [2022-11-25 18:25:34,688 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-25 18:25:34,688 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-11-25 18:25:34,688 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 395) no Hoare annotation was computed. [2022-11-25 18:25:34,688 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 390) no Hoare annotation was computed. [2022-11-25 18:25:34,688 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 18:25:34,688 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 244) no Hoare annotation was computed. [2022-11-25 18:25:34,689 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-11-25 18:25:34,689 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 396) no Hoare annotation was computed. [2022-11-25 18:25:34,689 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2022-11-25 18:25:34,689 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 162) no Hoare annotation was computed. [2022-11-25 18:25:34,689 INFO L899 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2022-11-25 18:25:34,689 INFO L899 garLoopResultBuilder]: For program point L132-1(line 132) no Hoare annotation was computed. [2022-11-25 18:25:34,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 18:25:34,690 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 201) no Hoare annotation was computed. [2022-11-25 18:25:34,690 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 132) no Hoare annotation was computed. [2022-11-25 18:25:34,690 INFO L902 garLoopResultBuilder]: At program point L314(lines 32 395) the Hoare annotation is: true [2022-11-25 18:25:34,690 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 250) no Hoare annotation was computed. [2022-11-25 18:25:34,690 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 253) no Hoare annotation was computed. [2022-11-25 18:25:34,691 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 198) no Hoare annotation was computed. [2022-11-25 18:25:34,691 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 387) no Hoare annotation was computed. [2022-11-25 18:25:34,691 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 354) no Hoare annotation was computed. [2022-11-25 18:25:34,691 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 393) no Hoare annotation was computed. [2022-11-25 18:25:34,691 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 200) no Hoare annotation was computed. [2022-11-25 18:25:34,691 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-11-25 18:25:34,692 INFO L895 garLoopResultBuilder]: At program point L249(lines 101 251) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| 2147483646) (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (not (= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) [2022-11-25 18:25:34,692 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 315) no Hoare annotation was computed. [2022-11-25 18:25:34,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 194) no Hoare annotation was computed. [2022-11-25 18:25:34,692 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 251) no Hoare annotation was computed. [2022-11-25 18:25:34,692 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 389) no Hoare annotation was computed. [2022-11-25 18:25:34,695 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:34,697 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:25:34,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:25:34 BoogieIcfgContainer [2022-11-25 18:25:34,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:25:34,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:25:34,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:25:34,714 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:25:34,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:23:27" (3/4) ... [2022-11-25 18:25:34,717 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:25:34,729 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-25 18:25:34,730 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 18:25:34,730 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 18:25:34,730 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:25:34,792 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:25:34,792 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:25:34,793 INFO L158 Benchmark]: Toolchain (without parser) took 128686.80ms. Allocated memory was 220.2MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 185.7MB in the beginning and 2.1GB in the end (delta: -1.9GB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,793 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 146.8MB. Free memory was 91.7MB in the beginning and 91.5MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:25:34,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.33ms. Allocated memory is still 220.2MB. Free memory was 185.7MB in the beginning and 168.8MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,795 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.18ms. Allocated memory is still 220.2MB. Free memory was 168.6MB in the beginning and 166.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,795 INFO L158 Benchmark]: Boogie Preprocessor took 62.58ms. Allocated memory is still 220.2MB. Free memory was 166.5MB in the beginning and 165.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,796 INFO L158 Benchmark]: RCFGBuilder took 411.47ms. Allocated memory is still 220.2MB. Free memory was 165.0MB in the beginning and 148.2MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,797 INFO L158 Benchmark]: TraceAbstraction took 127655.21ms. Allocated memory was 220.2MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 147.7MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-25 18:25:34,797 INFO L158 Benchmark]: Witness Printer took 79.08ms. Allocated memory is still 2.2GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 146.8MB. Free memory was 91.7MB in the beginning and 91.5MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.33ms. Allocated memory is still 220.2MB. Free memory was 185.7MB in the beginning and 168.8MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.18ms. Allocated memory is still 220.2MB. Free memory was 168.6MB in the beginning and 166.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.58ms. Allocated memory is still 220.2MB. Free memory was 166.5MB in the beginning and 165.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.47ms. Allocated memory is still 220.2MB. Free memory was 165.0MB in the beginning and 148.2MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 127655.21ms. Allocated memory was 220.2MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 147.7MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 79.08ms. Allocated memory is still 2.2GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 132]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 194]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 194]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 287]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 287]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 59 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 127.5s, OverallIterations: 14, TraceHistogramMax: 187, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 31.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10799 SdHoareTripleChecker+Valid, 7.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10799 mSDsluCounter, 1441 SdHoareTripleChecker+Invalid, 6.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1160 mSDsCounter, 1245 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6380 IncrementalHoareTripleChecker+Invalid, 7625 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1245 mSolverCounterUnsat, 281 mSDtfsCounter, 6380 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6104 GetRequests, 5141 SyntacticMatches, 2 SemanticMatches, 961 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27799 ImplicationChecksByTransitivity, 53.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1329occurred in iteration=13, InterpolantAutomatonStates: 671, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 533 NumberOfFragments, 79 HoareAnnotationTreeSize, 6 FomulaSimplifications, 3292 FormulaSimplificationTreeSizeReduction, 2.6s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7760 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 85.0s InterpolantComputationTime, 6756 NumberOfCodeBlocks, 4727 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 8736 ConstructedInterpolants, 0 QuantifiedInterpolants, 26187 SizeOfPredicates, 11 NumberOfNonLiveVariables, 5169 ConjunctsInSsa, 206 ConjunctsInUnsatCore, 29 InterpolantComputations, 7 PerfectInterpolantSequences, 177951/441525 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 10 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((main__t <= 2147483646 && main__tagbuf_len <= 2147483646) && 1 <= main__t) && !(main__t == main__tagbuf_len)) || ((main__tagbuf_len <= 2147483646 && main__t == 0) && !(main__t == main__tagbuf_len)) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (main__tagbuf_len <= 2147483646 && 1 <= main__t) && !(main__t == main__tagbuf_len) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: main__tagbuf_len <= 2147483646 && 1 <= main__t - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: ((((main__tagbuf_len <= 2147483646 && 1 <= main__t) && (__VERIFIER_assert__cond == 1 || __VERIFIER_assert__cond == 0)) && !(main__t == main__tagbuf_len)) && main__t <= 2147483645) || ((main__tagbuf_len <= 2147483646 && main__t == 0) && !(main__t == main__tagbuf_len)) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 18:25:34,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_081bac69-ebce-4e31-bdfb-befd018ceab1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE