./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_11_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/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_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_11_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/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 64bit --witnessprinter.graph.data.programhash 66e3a7f896fa5340787a3c37b6c0ca2547060e04edd72a371311e7e68cf26523 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:26:06,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:26:06,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:26:06,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:26:06,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:26:06,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:26:06,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:26:06,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:26:06,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:26:06,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:26:06,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:26:06,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:26:06,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:26:06,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:26:06,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:26:06,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:26:06,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:26:06,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:26:06,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:26:06,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:26:06,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:26:06,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:26:06,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:26:06,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:26:06,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:26:06,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:26:06,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:26:06,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:26:06,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:26:06,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:26:06,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:26:06,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:26:06,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:26:06,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:26:06,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:26:06,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:26:06,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:26:06,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:26:06,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:26:06,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:26:06,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:26:06,301 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 15:26:06,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:26:06,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:26:06,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:26:06,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:26:06,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:26:06,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:26:06,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:26:06,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:26:06,352 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:26:06,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:26:06,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:26:06,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:26:06,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:26:06,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:26:06,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:26:06,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:26:06,356 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:26:06,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:26:06,356 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:26:06,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:26:06,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:26:06,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:26:06,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:26:06,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:26:06,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:26:06,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:26:06,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:26:06,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:26:06,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:26:06,360 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:26:06,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:26:06,361 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:26:06,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:26:06,362 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_31d7c505-d390-41c2-bf71-14fa0562c897/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66e3a7f896fa5340787a3c37b6c0ca2547060e04edd72a371311e7e68cf26523 [2022-11-25 15:26:06,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:26:06,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:26:06,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:26:06,778 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:26:06,778 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:26:06,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_11_good.i [2022-11-25 15:26:10,256 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:26:10,663 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:26:10,665 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_11_good.i [2022-11-25 15:26:10,701 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/data/220fa7144/d9c85ca6f97846b5b2c716a091b06803/FLAGd36070182 [2022-11-25 15:26:10,722 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/data/220fa7144/d9c85ca6f97846b5b2c716a091b06803 [2022-11-25 15:26:10,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:26:10,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:26:10,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:26:10,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:26:10,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:26:10,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:26:10" (1/1) ... [2022-11-25 15:26:10,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17eb59ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:10, skipping insertion in model container [2022-11-25 15:26:10,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:26:10" (1/1) ... [2022-11-25 15:26:10,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:26:10,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:26:11,273 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:26:11,935 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:11,941 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:26:11,944 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:26:11,947 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:26:11,949 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:26:11,976 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:26:11,984 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:26:11,995 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:26:11,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:26:12,009 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:26:12,033 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:26:12,102 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:26:12,104 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:26:12,106 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:26:12,108 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:26:12,109 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:26:12,115 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:26:12,119 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:26:12,124 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:26:12,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:26:12,382 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:26:12,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12 WrapperNode [2022-11-25 15:26:12,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:26:12,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:26:12,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:26:12,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:26:12,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (1/1) ... [2022-11-25 15:26:12,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (1/1) ... [2022-11-25 15:26:12,494 INFO L138 Inliner]: procedures = 504, calls = 93, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 139 [2022-11-25 15:26:12,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:26:12,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:26:12,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:26:12,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:26:12,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (1/1) ... [2022-11-25 15:26:12,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (1/1) ... [2022-11-25 15:26:12,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (1/1) ... [2022-11-25 15:26:12,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (1/1) ... [2022-11-25 15:26:12,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (1/1) ... [2022-11-25 15:26:12,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (1/1) ... [2022-11-25 15:26:12,558 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (1/1) ... [2022-11-25 15:26:12,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (1/1) ... [2022-11-25 15:26:12,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:26:12,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:26:12,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:26:12,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:26:12,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (1/1) ... [2022-11-25 15:26:12,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:26:12,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:12,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:26:12,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:26:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-25 15:26:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-25 15:26:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 15:26:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 15:26:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 15:26:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-11-25 15:26:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-11-25 15:26:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:26:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 15:26:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:26:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:26:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:26:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:26:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsFalse [2022-11-25 15:26:12,663 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsFalse [2022-11-25 15:26:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 15:26:12,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:26:12,835 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:26:12,837 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:26:13,209 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:26:13,234 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:26:13,236 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:26:13,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:26:13 BoogieIcfgContainer [2022-11-25 15:26:13,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:26:13,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:26:13,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:26:13,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:26:13,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:26:10" (1/3) ... [2022-11-25 15:26:13,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a1cd5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:26:13, skipping insertion in model container [2022-11-25 15:26:13,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:12" (2/3) ... [2022-11-25 15:26:13,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a1cd5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:26:13, skipping insertion in model container [2022-11-25 15:26:13,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:26:13" (3/3) ... [2022-11-25 15:26:13,252 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_11_good.i [2022-11-25 15:26:13,275 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:26:13,276 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 15:26:13,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:26:13,366 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;@61f90930, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:26:13,366 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 15:26:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 50 states have (on average 1.42) internal successors, (71), 67 states have internal predecessors, (71), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 17 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-25 15:26:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 15:26:13,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:13,386 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] [2022-11-25 15:26:13,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:13,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:13,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1129302584, now seen corresponding path program 1 times [2022-11-25 15:26:13,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:13,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952403639] [2022-11-25 15:26:13,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:13,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:13,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:13,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:13,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:26:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:26:14,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:14,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952403639] [2022-11-25 15:26:14,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952403639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:14,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:14,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:26:14,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137462047] [2022-11-25 15:26:14,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:14,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:26:14,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:14,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:26:14,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:26:14,080 INFO L87 Difference]: Start difference. First operand has 83 states, 50 states have (on average 1.42) internal successors, (71), 67 states have internal predecessors, (71), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 17 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 15:26:14,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:14,150 INFO L93 Difference]: Finished difference Result 156 states and 207 transitions. [2022-11-25 15:26:14,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:26:14,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-11-25 15:26:14,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:14,164 INFO L225 Difference]: With dead ends: 156 [2022-11-25 15:26:14,165 INFO L226 Difference]: Without dead ends: 75 [2022-11-25 15:26:14,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 15:26:14,173 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:14,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 314 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:14,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-25 15:26:14,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-25 15:26:14,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 45 states have (on average 1.4) internal successors, (63), 60 states have internal predecessors, (63), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-25 15:26:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2022-11-25 15:26:14,226 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 22 [2022-11-25 15:26:14,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:14,228 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2022-11-25 15:26:14,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 15:26:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2022-11-25 15:26:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 15:26:14,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:14,231 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] [2022-11-25 15:26:14,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:26:14,231 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:14,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:14,233 INFO L85 PathProgramCache]: Analyzing trace with hash 849048579, now seen corresponding path program 1 times [2022-11-25 15:26:14,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:14,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297428207] [2022-11-25 15:26:14,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:14,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:26:14,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:14,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297428207] [2022-11-25 15:26:14,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297428207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:14,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:14,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:26:14,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227306587] [2022-11-25 15:26:14,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:14,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:14,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:14,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:14,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:26:14,386 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 15:26:14,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:14,430 INFO L93 Difference]: Finished difference Result 177 states and 237 transitions. [2022-11-25 15:26:14,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:14,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-11-25 15:26:14,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:14,433 INFO L225 Difference]: With dead ends: 177 [2022-11-25 15:26:14,434 INFO L226 Difference]: Without dead ends: 121 [2022-11-25 15:26:14,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:26:14,436 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 46 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:14,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 201 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:14,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-25 15:26:14,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 79. [2022-11-25 15:26:14,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 62 states have internal predecessors, (67), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:26:14,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 105 transitions. [2022-11-25 15:26:14,455 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 105 transitions. Word has length 24 [2022-11-25 15:26:14,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:14,456 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 105 transitions. [2022-11-25 15:26:14,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 15:26:14,457 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 105 transitions. [2022-11-25 15:26:14,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 15:26:14,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:14,458 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 15:26:14,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:26:14,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:14,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:14,459 INFO L85 PathProgramCache]: Analyzing trace with hash 550702250, now seen corresponding path program 1 times [2022-11-25 15:26:14,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:14,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495378071] [2022-11-25 15:26:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:14,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:26:14,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:14,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495378071] [2022-11-25 15:26:14,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495378071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:14,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:14,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:26:14,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117236729] [2022-11-25 15:26:14,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:14,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:14,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:14,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:14,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:26:14,564 INFO L87 Difference]: Start difference. First operand 79 states and 105 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 15:26:14,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:14,584 INFO L93 Difference]: Finished difference Result 79 states and 105 transitions. [2022-11-25 15:26:14,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:14,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2022-11-25 15:26:14,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:14,586 INFO L225 Difference]: With dead ends: 79 [2022-11-25 15:26:14,587 INFO L226 Difference]: Without dead ends: 78 [2022-11-25 15:26:14,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:26:14,589 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 42 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:14,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 124 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:14,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-25 15:26:14,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-25 15:26:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 49 states have (on average 1.346938775510204) internal successors, (66), 61 states have internal predecessors, (66), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:26:14,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 104 transitions. [2022-11-25 15:26:14,605 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 104 transitions. Word has length 25 [2022-11-25 15:26:14,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:14,605 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 104 transitions. [2022-11-25 15:26:14,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 15:26:14,606 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 104 transitions. [2022-11-25 15:26:14,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 15:26:14,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:14,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2022-11-25 15:26:14,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:26:14,609 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:14,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:14,609 INFO L85 PathProgramCache]: Analyzing trace with hash -893217450, now seen corresponding path program 1 times [2022-11-25 15:26:14,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:14,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439205982] [2022-11-25 15:26:14,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:14,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 15:26:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 15:26:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 15:26:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 15:26:14,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:14,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439205982] [2022-11-25 15:26:14,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439205982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:14,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:14,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:26:14,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964979280] [2022-11-25 15:26:14,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:14,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:26:14,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:14,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:26:14,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:26:14,756 INFO L87 Difference]: Start difference. First operand 78 states and 104 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 15:26:14,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:14,799 INFO L93 Difference]: Finished difference Result 132 states and 172 transitions. [2022-11-25 15:26:14,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:26:14,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2022-11-25 15:26:14,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:14,802 INFO L225 Difference]: With dead ends: 132 [2022-11-25 15:26:14,802 INFO L226 Difference]: Without dead ends: 77 [2022-11-25 15:26:14,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 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 15:26:14,804 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:14,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:14,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-25 15:26:14,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-25 15:26:14,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 60 states have internal predecessors, (64), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-25 15:26:14,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2022-11-25 15:26:14,819 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 42 [2022-11-25 15:26:14,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:14,820 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2022-11-25 15:26:14,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 15:26:14,821 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2022-11-25 15:26:14,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-25 15:26:14,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:14,823 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:14,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:26:14,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:14,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:14,824 INFO L85 PathProgramCache]: Analyzing trace with hash -979768833, now seen corresponding path program 1 times [2022-11-25 15:26:14,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:14,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908355523] [2022-11-25 15:26:14,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:14,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:14,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 15:26:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 15:26:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 15:26:15,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:15,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908355523] [2022-11-25 15:26:15,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908355523] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:26:15,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132224174] [2022-11-25 15:26:15,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:15,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:15,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:15,070 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:26:15,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:26:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:26:15,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:26:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 15:26:15,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:26:15,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132224174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:15,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:26:15,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:26:15,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395150728] [2022-11-25 15:26:15,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:15,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:15,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:15,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:15,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:15,372 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 15:26:15,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:15,433 INFO L93 Difference]: Finished difference Result 148 states and 190 transitions. [2022-11-25 15:26:15,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:15,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2022-11-25 15:26:15,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:15,442 INFO L225 Difference]: With dead ends: 148 [2022-11-25 15:26:15,446 INFO L226 Difference]: Without dead ends: 109 [2022-11-25 15:26:15,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:15,448 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 26 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:15,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 201 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:15,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-25 15:26:15,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 83. [2022-11-25 15:26:15,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 64 states have internal predecessors, (70), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:26:15,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 108 transitions. [2022-11-25 15:26:15,475 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 108 transitions. Word has length 43 [2022-11-25 15:26:15,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:15,476 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 108 transitions. [2022-11-25 15:26:15,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 15:26:15,477 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2022-11-25 15:26:15,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 15:26:15,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:15,478 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:15,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:26:15,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:15,680 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:15,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:15,680 INFO L85 PathProgramCache]: Analyzing trace with hash -308062640, now seen corresponding path program 1 times [2022-11-25 15:26:15,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:15,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544972588] [2022-11-25 15:26:15,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:15,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 15:26:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 15:26:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,851 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 15:26:15,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:15,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544972588] [2022-11-25 15:26:15,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544972588] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:26:15,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394032408] [2022-11-25 15:26:15,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:15,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:15,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:15,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:26:15,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:26:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:15,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:26:15,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:26:16,014 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 15:26:16,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:26:16,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394032408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:16,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:26:16,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:26:16,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107162992] [2022-11-25 15:26:16,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:16,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:16,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:16,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:16,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:16,018 INFO L87 Difference]: Start difference. First operand 83 states and 108 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 15:26:16,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:16,040 INFO L93 Difference]: Finished difference Result 110 states and 144 transitions. [2022-11-25 15:26:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:16,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2022-11-25 15:26:16,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:16,043 INFO L225 Difference]: With dead ends: 110 [2022-11-25 15:26:16,044 INFO L226 Difference]: Without dead ends: 109 [2022-11-25 15:26:16,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:16,045 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 25 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:16,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 207 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:16,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-25 15:26:16,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 84. [2022-11-25 15:26:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.290909090909091) internal successors, (71), 65 states have internal predecessors, (71), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:26:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2022-11-25 15:26:16,058 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 44 [2022-11-25 15:26:16,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:16,059 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2022-11-25 15:26:16,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 15:26:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2022-11-25 15:26:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 15:26:16,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:16,062 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:16,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:26:16,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:16,268 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:16,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:16,268 INFO L85 PathProgramCache]: Analyzing trace with hash -396970406, now seen corresponding path program 1 times [2022-11-25 15:26:16,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:16,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535933] [2022-11-25 15:26:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:16,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 15:26:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 15:26:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 15:26:16,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:16,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535933] [2022-11-25 15:26:16,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:16,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:16,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:26:16,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972132164] [2022-11-25 15:26:16,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:16,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:16,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:16,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:16,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:26:16,390 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 15:26:16,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:16,424 INFO L93 Difference]: Finished difference Result 108 states and 141 transitions. [2022-11-25 15:26:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:16,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2022-11-25 15:26:16,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:16,430 INFO L225 Difference]: With dead ends: 108 [2022-11-25 15:26:16,430 INFO L226 Difference]: Without dead ends: 107 [2022-11-25 15:26:16,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:26:16,433 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 31 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:16,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 200 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:16,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-25 15:26:16,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 83. [2022-11-25 15:26:16,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 64 states have internal predecessors, (70), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:26:16,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 108 transitions. [2022-11-25 15:26:16,457 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 108 transitions. Word has length 45 [2022-11-25 15:26:16,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:16,463 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 108 transitions. [2022-11-25 15:26:16,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 15:26:16,464 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2022-11-25 15:26:16,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 15:26:16,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:16,472 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:16,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 15:26:16,473 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:16,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:16,474 INFO L85 PathProgramCache]: Analyzing trace with hash 578819413, now seen corresponding path program 1 times [2022-11-25 15:26:16,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:16,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992295244] [2022-11-25 15:26:16,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:16,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 15:26:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 15:26:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,613 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 15:26:16,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:16,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992295244] [2022-11-25 15:26:16,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992295244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:16,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:16,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:26:16,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745889848] [2022-11-25 15:26:16,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:16,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:16,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:16,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:16,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:26:16,620 INFO L87 Difference]: Start difference. First operand 83 states and 108 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 15:26:16,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:16,644 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2022-11-25 15:26:16,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:16,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2022-11-25 15:26:16,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:16,651 INFO L225 Difference]: With dead ends: 83 [2022-11-25 15:26:16,651 INFO L226 Difference]: Without dead ends: 82 [2022-11-25 15:26:16,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:26:16,656 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 27 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:16,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 135 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:16,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-25 15:26:16,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2022-11-25 15:26:16,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 61 states have internal predecessors, (67), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:26:16,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2022-11-25 15:26:16,687 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 46 [2022-11-25 15:26:16,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:16,687 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2022-11-25 15:26:16,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 15:26:16,693 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2022-11-25 15:26:16,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 15:26:16,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:16,694 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:16,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 15:26:16,695 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:16,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:16,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1554069230, now seen corresponding path program 1 times [2022-11-25 15:26:16,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:16,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143344807] [2022-11-25 15:26:16,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:16,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 15:26:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 15:26:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 15:26:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:26:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:16,858 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 15:26:16,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:16,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143344807] [2022-11-25 15:26:16,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143344807] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:26:16,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904167299] [2022-11-25 15:26:16,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:16,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:16,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:16,861 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:26:16,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:26:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:17,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:26:17,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:26:17,034 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-25 15:26:17,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:26:17,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904167299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:17,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:26:17,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:26:17,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042454770] [2022-11-25 15:26:17,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:17,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:17,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:17,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:17,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:17,036 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 15:26:17,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:17,050 INFO L93 Difference]: Finished difference Result 80 states and 105 transitions. [2022-11-25 15:26:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:17,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2022-11-25 15:26:17,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:17,052 INFO L225 Difference]: With dead ends: 80 [2022-11-25 15:26:17,052 INFO L226 Difference]: Without dead ends: 79 [2022-11-25 15:26:17,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:17,054 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 15 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:17,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 154 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:17,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-25 15:26:17,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-11-25 15:26:17,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 60 states have internal predecessors, (66), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:26:17,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 104 transitions. [2022-11-25 15:26:17,065 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 104 transitions. Word has length 55 [2022-11-25 15:26:17,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:17,065 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 104 transitions. [2022-11-25 15:26:17,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 15:26:17,066 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2022-11-25 15:26:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 15:26:17,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:17,067 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:17,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:26:17,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:17,273 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:17,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:17,274 INFO L85 PathProgramCache]: Analyzing trace with hash -931505736, now seen corresponding path program 1 times [2022-11-25 15:26:17,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:17,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467465116] [2022-11-25 15:26:17,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:17,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:17,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:17,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:17,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:17,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 15:26:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:17,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 15:26:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 15:26:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:26:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 15:26:17,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:17,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467465116] [2022-11-25 15:26:17,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467465116] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:26:17,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060277597] [2022-11-25 15:26:17,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:17,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:17,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:17,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:26:17,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:26:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:17,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:26:17,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:26:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-25 15:26:17,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:26:17,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060277597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:17,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:26:17,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:26:17,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979391724] [2022-11-25 15:26:17,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:17,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:17,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:17,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:17,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:17,635 INFO L87 Difference]: Start difference. First operand 79 states and 104 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 15:26:17,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:17,662 INFO L93 Difference]: Finished difference Result 97 states and 127 transitions. [2022-11-25 15:26:17,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:17,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2022-11-25 15:26:17,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:17,664 INFO L225 Difference]: With dead ends: 97 [2022-11-25 15:26:17,665 INFO L226 Difference]: Without dead ends: 96 [2022-11-25 15:26:17,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:17,666 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 11 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:17,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 179 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:17,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-25 15:26:17,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 84. [2022-11-25 15:26:17,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 57 states have (on average 1.2456140350877194) internal successors, (71), 63 states have internal predecessors, (71), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-25 15:26:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2022-11-25 15:26:17,686 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 56 [2022-11-25 15:26:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:17,688 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2022-11-25 15:26:17,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 15:26:17,688 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2022-11-25 15:26:17,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 15:26:17,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:17,690 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:17,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:26:17,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 15:26:17,904 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:17,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1831872358, now seen corresponding path program 1 times [2022-11-25 15:26:17,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:17,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30557977] [2022-11-25 15:26:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:17,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 15:26:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 15:26:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 15:26:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:26:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 15:26:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 15:26:18,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:18,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30557977] [2022-11-25 15:26:18,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30557977] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:26:18,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394325504] [2022-11-25 15:26:18,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:18,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:18,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:18,075 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:26:18,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:26:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:26:18,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:26:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-25 15:26:18,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:26:18,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394325504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:18,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:26:18,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:26:18,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11629666] [2022-11-25 15:26:18,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:18,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:18,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:18,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:18,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:18,249 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 15:26:18,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:18,261 INFO L93 Difference]: Finished difference Result 84 states and 111 transitions. [2022-11-25 15:26:18,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:18,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 61 [2022-11-25 15:26:18,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:18,263 INFO L225 Difference]: With dead ends: 84 [2022-11-25 15:26:18,263 INFO L226 Difference]: Without dead ends: 83 [2022-11-25 15:26:18,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:18,264 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 11 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:18,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 154 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:18,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-25 15:26:18,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2022-11-25 15:26:18,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 59 states have internal predecessors, (65), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:26:18,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 103 transitions. [2022-11-25 15:26:18,273 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 103 transitions. Word has length 61 [2022-11-25 15:26:18,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:18,274 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 103 transitions. [2022-11-25 15:26:18,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 15:26:18,275 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 103 transitions. [2022-11-25 15:26:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 15:26:18,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:18,276 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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, 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, 1] [2022-11-25 15:26:18,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 15:26:18,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 15:26:18,482 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:18,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:18,483 INFO L85 PathProgramCache]: Analyzing trace with hash 344469670, now seen corresponding path program 1 times [2022-11-25 15:26:18,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:18,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036597722] [2022-11-25 15:26:18,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:18,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 15:26:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 15:26:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 15:26:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:26:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:26:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 15:26:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,610 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-25 15:26:18,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:18,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036597722] [2022-11-25 15:26:18,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036597722] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:26:18,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648218214] [2022-11-25 15:26:18,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:18,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:18,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:18,613 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:26:18,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 15:26:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:18,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:26:18,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:26:18,785 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 15:26:18,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:26:18,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648218214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:18,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:26:18,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:26:18,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147651029] [2022-11-25 15:26:18,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:18,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:18,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:18,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:18,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:18,788 INFO L87 Difference]: Start difference. First operand 78 states and 103 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 15:26:18,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:18,809 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2022-11-25 15:26:18,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:18,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2022-11-25 15:26:18,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:18,814 INFO L225 Difference]: With dead ends: 78 [2022-11-25 15:26:18,814 INFO L226 Difference]: Without dead ends: 77 [2022-11-25 15:26:18,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:18,815 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 4 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:18,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 166 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:18,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-25 15:26:18,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-25 15:26:18,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 58 states have internal predecessors, (64), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:26:18,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 102 transitions. [2022-11-25 15:26:18,831 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 102 transitions. Word has length 68 [2022-11-25 15:26:18,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:18,832 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 102 transitions. [2022-11-25 15:26:18,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 15:26:18,832 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 102 transitions. [2022-11-25 15:26:18,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 15:26:18,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:18,833 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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, 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, 1, 1] [2022-11-25 15:26:18,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 15:26:19,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 15:26:19,040 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:19,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:19,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2088625338, now seen corresponding path program 1 times [2022-11-25 15:26:19,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:19,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106262634] [2022-11-25 15:26:19,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:19,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 15:26:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 15:26:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 15:26:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:26:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:26:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 15:26:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-25 15:26:19,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:19,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106262634] [2022-11-25 15:26:19,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106262634] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:26:19,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771815935] [2022-11-25 15:26:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:19,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:19,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:19,165 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:26:19,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 15:26:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:26:19,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:26:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 15:26:19,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:26:19,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771815935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:19,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:26:19,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:26:19,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168882576] [2022-11-25 15:26:19,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:19,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:19,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:19,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:19,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:19,360 INFO L87 Difference]: Start difference. First operand 77 states and 102 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 15:26:19,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:19,374 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2022-11-25 15:26:19,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:19,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2022-11-25 15:26:19,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:19,376 INFO L225 Difference]: With dead ends: 83 [2022-11-25 15:26:19,376 INFO L226 Difference]: Without dead ends: 77 [2022-11-25 15:26:19,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:19,378 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:19,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:19,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-25 15:26:19,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-25 15:26:19,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 58 states have internal predecessors, (63), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 15:26:19,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 101 transitions. [2022-11-25 15:26:19,427 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 101 transitions. Word has length 69 [2022-11-25 15:26:19,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:19,428 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 101 transitions. [2022-11-25 15:26:19,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 15:26:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2022-11-25 15:26:19,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 15:26:19,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:26:19,435 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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, 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, 1, 1] [2022-11-25 15:26:19,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 15:26:19,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:19,642 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 15:26:19,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:19,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1526283588, now seen corresponding path program 1 times [2022-11-25 15:26:19,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:19,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347370161] [2022-11-25 15:26:19,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:19,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:26:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:26:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 15:26:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 15:26:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 15:26:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 15:26:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 15:26:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:26:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:26:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 15:26:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-25 15:26:19,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:19,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347370161] [2022-11-25 15:26:19,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347370161] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:26:19,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295912322] [2022-11-25 15:26:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:19,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:26:19,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:19,783 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:26:19,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 15:26:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:19,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:26:19,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:26:19,983 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 15:26:19,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:26:19,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295912322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:19,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:26:19,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:26:19,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269497027] [2022-11-25 15:26:19,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:19,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:26:19,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:19,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:26:19,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:19,987 INFO L87 Difference]: Start difference. First operand 77 states and 101 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 15:26:19,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:26:19,997 INFO L93 Difference]: Finished difference Result 77 states and 101 transitions. [2022-11-25 15:26:19,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:26:19,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2022-11-25 15:26:19,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:26:19,998 INFO L225 Difference]: With dead ends: 77 [2022-11-25 15:26:19,998 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 15:26:20,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:26:20,002 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:26:20,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:26:20,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 15:26:20,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 15:26:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:26:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 15:26:20,004 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2022-11-25 15:26:20,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:26:20,005 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 15:26:20,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 15:26:20,005 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 15:26:20,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 15:26:20,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-25 15:26:20,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-25 15:26:20,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-25 15:26:20,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-25 15:26:20,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-25 15:26:20,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-25 15:26:20,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-25 15:26:20,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-25 15:26:20,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 15:26:20,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 15:26:20,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 15:26:20,487 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-25 15:26:20,487 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-25 15:26:20,488 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2022-11-25 15:26:20,488 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2022-11-25 15:26:20,488 INFO L902 garLoopResultBuilder]: At program point globalReturnsFalseENTRY(lines 1514 1517) the Hoare annotation is: true [2022-11-25 15:26:20,488 INFO L899 garLoopResultBuilder]: For program point globalReturnsFalseFINAL(lines 1514 1517) no Hoare annotation was computed. [2022-11-25 15:26:20,488 INFO L899 garLoopResultBuilder]: For program point globalReturnsFalseEXIT(lines 1514 1517) no Hoare annotation was computed. [2022-11-25 15:26:20,489 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-25 15:26:20,490 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-25 15:26:20,490 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2022-11-25 15:26:20,490 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1605) no Hoare annotation was computed. [2022-11-25 15:26:20,491 INFO L902 garLoopResultBuilder]: At program point L1662(line 1662) the Hoare annotation is: true [2022-11-25 15:26:20,491 INFO L899 garLoopResultBuilder]: For program point L1629(line 1629) no Hoare annotation was computed. [2022-11-25 15:26:20,491 INFO L899 garLoopResultBuilder]: For program point L1662-1(line 1662) no Hoare annotation was computed. [2022-11-25 15:26:20,491 INFO L899 garLoopResultBuilder]: For program point L1629-1(line 1629) no Hoare annotation was computed. [2022-11-25 15:26:20,491 INFO L902 garLoopResultBuilder]: At program point L1646(line 1646) the Hoare annotation is: true [2022-11-25 15:26:20,491 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1645) no Hoare annotation was computed. [2022-11-25 15:26:20,492 INFO L895 garLoopResultBuilder]: At program point L1638(line 1638) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodG2B2_~data~3#1| 2)) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B2_~data~3#1| 0) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-11-25 15:26:20,492 INFO L899 garLoopResultBuilder]: For program point L1605(line 1605) no Hoare annotation was computed. [2022-11-25 15:26:20,492 INFO L899 garLoopResultBuilder]: For program point L1638-1(line 1638) no Hoare annotation was computed. [2022-11-25 15:26:20,492 INFO L899 garLoopResultBuilder]: For program point L1572(lines 1572 1580) no Hoare annotation was computed. [2022-11-25 15:26:20,493 INFO L899 garLoopResultBuilder]: For program point L1605-1(line 1605) no Hoare annotation was computed. [2022-11-25 15:26:20,493 INFO L899 garLoopResultBuilder]: For program point L1638-2(lines 1638 1641) no Hoare annotation was computed. [2022-11-25 15:26:20,493 INFO L895 garLoopResultBuilder]: At program point L1638-4(lines 1638 1641) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodG2B2_~data~3#1| 2)) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B2_~data~3#1| 0) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-11-25 15:26:20,494 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1574) no Hoare annotation was computed. [2022-11-25 15:26:20,494 INFO L902 garLoopResultBuilder]: At program point L1663(lines 1657 1664) the Hoare annotation is: true [2022-11-25 15:26:20,494 INFO L895 garLoopResultBuilder]: At program point L1630(line 1630) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-11-25 15:26:20,494 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 15:26:20,495 INFO L895 garLoopResultBuilder]: At program point L1597(line 1597) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 0) (<= 0 |ULTIMATE.start_goodB2G2_~data~1#1|)) [2022-11-25 15:26:20,495 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 15:26:20,495 INFO L899 garLoopResultBuilder]: For program point L1597-1(lines 1591 1598) no Hoare annotation was computed. [2022-11-25 15:26:20,495 INFO L899 garLoopResultBuilder]: For program point L1556(lines 1556 1563) no Hoare annotation was computed. [2022-11-25 15:26:20,495 INFO L899 garLoopResultBuilder]: For program point L1614(lines 1614 1633) no Hoare annotation was computed. [2022-11-25 15:26:20,496 INFO L895 garLoopResultBuilder]: At program point L1606(line 1606) the Hoare annotation is: (and (not (<= (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648) 0)) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-25 15:26:20,496 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1574) no Hoare annotation was computed. [2022-11-25 15:26:20,497 INFO L899 garLoopResultBuilder]: For program point L1574(line 1574) no Hoare annotation was computed. [2022-11-25 15:26:20,497 INFO L899 garLoopResultBuilder]: For program point L1574-1(line 1574) no Hoare annotation was computed. [2022-11-25 15:26:20,497 INFO L899 garLoopResultBuilder]: For program point L1566(line 1566) no Hoare annotation was computed. [2022-11-25 15:26:20,497 INFO L899 garLoopResultBuilder]: For program point L1566-1(lines 1566 1581) no Hoare annotation was computed. [2022-11-25 15:26:20,497 INFO L899 garLoopResultBuilder]: For program point L1591(lines 1591 1598) no Hoare annotation was computed. [2022-11-25 15:26:20,498 INFO L899 garLoopResultBuilder]: For program point L1583(lines 1583 1613) no Hoare annotation was computed. [2022-11-25 15:26:20,498 INFO L895 garLoopResultBuilder]: At program point L1575(line 1575) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0))) [2022-11-25 15:26:20,498 INFO L899 garLoopResultBuilder]: For program point L1650(lines 1650 1656) no Hoare annotation was computed. [2022-11-25 15:26:20,498 INFO L899 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2022-11-25 15:26:20,499 INFO L899 garLoopResultBuilder]: For program point L1642-1(lines 1642 1648) no Hoare annotation was computed. [2022-11-25 15:26:20,499 INFO L899 garLoopResultBuilder]: For program point L1634(lines 1634 1649) no Hoare annotation was computed. [2022-11-25 15:26:20,499 INFO L899 garLoopResultBuilder]: For program point L1601(line 1601) no Hoare annotation was computed. [2022-11-25 15:26:20,500 INFO L895 garLoopResultBuilder]: At program point L1568(line 1568) the Hoare annotation is: false [2022-11-25 15:26:20,500 INFO L899 garLoopResultBuilder]: For program point L1601-1(lines 1601 1612) no Hoare annotation was computed. [2022-11-25 15:26:20,500 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 15:26:20,500 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1629) no Hoare annotation was computed. [2022-11-25 15:26:20,500 INFO L899 garLoopResultBuilder]: For program point L1626(line 1626) no Hoare annotation was computed. [2022-11-25 15:26:20,501 INFO L899 garLoopResultBuilder]: For program point L1626-1(lines 1626 1632) no Hoare annotation was computed. [2022-11-25 15:26:20,501 INFO L895 garLoopResultBuilder]: At program point L1618(line 1618) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-11-25 15:26:20,501 INFO L899 garLoopResultBuilder]: For program point L1618-1(line 1618) no Hoare annotation was computed. [2022-11-25 15:26:20,502 INFO L895 garLoopResultBuilder]: At program point L1552(line 1552) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0))) [2022-11-25 15:26:20,502 INFO L899 garLoopResultBuilder]: For program point L1618-2(lines 1618 1625) no Hoare annotation was computed. [2022-11-25 15:26:20,502 INFO L899 garLoopResultBuilder]: For program point L1552-1(line 1552) no Hoare annotation was computed. [2022-11-25 15:26:20,503 INFO L895 garLoopResultBuilder]: At program point L1618-3(lines 1618 1625) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-11-25 15:26:20,503 INFO L899 garLoopResultBuilder]: For program point L1552-2(lines 1552 1565) no Hoare annotation was computed. [2022-11-25 15:26:20,503 INFO L895 garLoopResultBuilder]: At program point L1552-4(lines 1552 1565) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-11-25 15:26:20,503 INFO L895 garLoopResultBuilder]: At program point L1610(line 1610) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 0)) [2022-11-25 15:26:20,503 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 15:26:20,504 INFO L902 garLoopResultBuilder]: At program point L1660(line 1660) the Hoare annotation is: true [2022-11-25 15:26:20,504 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1629) no Hoare annotation was computed. [2022-11-25 15:26:20,504 INFO L899 garLoopResultBuilder]: For program point L1660-1(line 1660) no Hoare annotation was computed. [2022-11-25 15:26:20,504 INFO L899 garLoopResultBuilder]: For program point L1603(lines 1603 1611) no Hoare annotation was computed. [2022-11-25 15:26:20,504 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1605) no Hoare annotation was computed. [2022-11-25 15:26:20,505 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0))) [2022-11-25 15:26:20,505 INFO L899 garLoopResultBuilder]: For program point L1562-1(lines 1556 1563) no Hoare annotation was computed. [2022-11-25 15:26:20,505 INFO L895 garLoopResultBuilder]: At program point L1620(line 1620) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-11-25 15:26:20,505 INFO L895 garLoopResultBuilder]: At program point L1587(line 1587) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 0) (<= 0 |ULTIMATE.start_goodB2G2_~data~1#1|)) [2022-11-25 15:26:20,507 INFO L899 garLoopResultBuilder]: For program point L1587-1(line 1587) no Hoare annotation was computed. [2022-11-25 15:26:20,507 INFO L899 garLoopResultBuilder]: For program point L1587-2(lines 1587 1600) no Hoare annotation was computed. [2022-11-25 15:26:20,507 INFO L895 garLoopResultBuilder]: At program point L1587-4(lines 1587 1600) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-25 15:26:20,507 INFO L899 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2022-11-25 15:26:20,507 INFO L899 garLoopResultBuilder]: For program point L1645-1(line 1645) no Hoare annotation was computed. [2022-11-25 15:26:20,508 INFO L895 garLoopResultBuilder]: At program point L1579(line 1579) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-11-25 15:26:20,510 INFO L899 garLoopResultBuilder]: For program point L1579-1(lines 1566 1581) no Hoare annotation was computed. [2022-11-25 15:26:20,511 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1645) no Hoare annotation was computed. [2022-11-25 15:26:20,511 INFO L899 garLoopResultBuilder]: For program point globalReturnsTrueFINAL(lines 1510 1513) no Hoare annotation was computed. [2022-11-25 15:26:20,511 INFO L902 garLoopResultBuilder]: At program point globalReturnsTrueENTRY(lines 1510 1513) the Hoare annotation is: true [2022-11-25 15:26:20,511 INFO L899 garLoopResultBuilder]: For program point globalReturnsTrueEXIT(lines 1510 1513) no Hoare annotation was computed. [2022-11-25 15:26:20,516 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:26:20,519 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:26:20,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:26:20 BoogieIcfgContainer [2022-11-25 15:26:20,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:26:20,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:26:20,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:26:20,541 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:26:20,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:26:13" (3/4) ... [2022-11-25 15:26:20,550 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:26:20,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-25 15:26:20,558 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsFalse [2022-11-25 15:26:20,558 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-25 15:26:20,558 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrue [2022-11-25 15:26:20,568 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-25 15:26:20,569 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-25 15:26:20,569 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 15:26:20,570 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:26:20,570 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:26:20,645 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:26:20,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:26:20,646 INFO L158 Benchmark]: Toolchain (without parser) took 9918.35ms. Allocated memory was 182.5MB in the beginning and 222.3MB in the end (delta: 39.8MB). Free memory was 135.2MB in the beginning and 117.7MB in the end (delta: 17.5MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2022-11-25 15:26:20,647 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:26:20,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1652.11ms. Allocated memory is still 182.5MB. Free memory was 135.0MB in the beginning and 118.5MB in the end (delta: 16.6MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2022-11-25 15:26:20,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.62ms. Allocated memory is still 182.5MB. Free memory was 118.5MB in the beginning and 115.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:26:20,648 INFO L158 Benchmark]: Boogie Preprocessor took 67.83ms. Allocated memory is still 182.5MB. Free memory was 115.1MB in the beginning and 113.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:26:20,649 INFO L158 Benchmark]: RCFGBuilder took 675.88ms. Allocated memory is still 182.5MB. Free memory was 112.8MB in the beginning and 96.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 15:26:20,649 INFO L158 Benchmark]: TraceAbstraction took 7286.21ms. Allocated memory was 182.5MB in the beginning and 222.3MB in the end (delta: 39.8MB). Free memory was 95.4MB in the beginning and 122.9MB in the end (delta: -27.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-11-25 15:26:20,650 INFO L158 Benchmark]: Witness Printer took 104.95ms. Allocated memory is still 222.3MB. Free memory was 122.9MB in the beginning and 117.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 15:26:20,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1652.11ms. Allocated memory is still 182.5MB. Free memory was 135.0MB in the beginning and 118.5MB in the end (delta: 16.6MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.62ms. Allocated memory is still 182.5MB. Free memory was 118.5MB in the beginning and 115.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.83ms. Allocated memory is still 182.5MB. Free memory was 115.1MB in the beginning and 113.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 675.88ms. Allocated memory is still 182.5MB. Free memory was 112.8MB in the beginning and 96.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7286.21ms. Allocated memory was 182.5MB in the beginning and 222.3MB in the end (delta: 39.8MB). Free memory was 95.4MB in the beginning and 122.9MB in the end (delta: -27.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Witness Printer took 104.95ms. Allocated memory is still 222.3MB. Free memory was 122.9MB in the beginning and 117.7MB in the end (delta: 5.2MB). 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: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1645]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1645]: 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 5 procedures, 83 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 14, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 238 mSDsluCounter, 2647 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1261 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 1386 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 683 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=6, InterpolantAutomatonStates: 44, 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, 136 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 91 PreInvPairs, 111 NumberOfFragments, 198 HoareAnnotationTreeSize, 91 FomulaSimplifications, 739 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 25 FomulaSimplificationsInter, 131 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1134 NumberOfCodeBlocks, 1134 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1112 ConstructedInterpolants, 0 QuantifiedInterpolants, 1450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1873 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 22 InterpolantComputations, 14 PerfectInterpolantSequences, 529/569 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1657]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 15:26:20,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d7c505-d390-41c2-bf71-14fa0562c897/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