./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_multiply_17_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_multiply_17_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 18932daab2b6a9e703f41380254be4987ae24cad0ed52ef44ca676e3b35352e8 --- 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-6b4ec56 [2022-11-20 20:03:56,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:03:56,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:03:56,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:03:56,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:03:56,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:03:56,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:03:56,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:03:56,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:03:56,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:03:56,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:03:56,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:03:56,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:03:56,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:03:56,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:03:56,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:03:56,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:03:56,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:03:56,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:03:56,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:03:56,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:03:56,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:03:56,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:03:56,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:03:56,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:03:56,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:03:56,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:03:56,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:03:56,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:03:56,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:03:56,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:03:56,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:03:56,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:03:56,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:03:56,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:03:56,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:03:56,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:03:56,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:03:56,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:03:56,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:03:56,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:03:56,667 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-20 20:03:56,694 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:03:56,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:03:56,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:03:56,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:03:56,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:03:56,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:03:56,696 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:03:56,696 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:03:56,697 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:03:56,697 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:03:56,697 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:03:56,697 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:03:56,698 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:03:56,698 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:03:56,698 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:03:56,698 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:03:56,699 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:03:56,699 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:03:56,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:03:56,700 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 20:03:56,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:03:56,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:03:56,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:03:56,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:03:56,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:03:56,702 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 20:03:56,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:03:56,702 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:03:56,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:03:56,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:03:56,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:03:56,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:03:56,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:03:56,704 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:03:56,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:03:56,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:03:56,705 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:03:56,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:03:56,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:03:56,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:03:56,706 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18932daab2b6a9e703f41380254be4987ae24cad0ed52ef44ca676e3b35352e8 [2022-11-20 20:03:57,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:03:57,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:03:57,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:03:57,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:03:57,033 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:03:57,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_multiply_17_good.i [2022-11-20 20:04:00,403 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:04:00,912 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:04:00,913 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_multiply_17_good.i [2022-11-20 20:04:00,954 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/data/dd96bc07c/b669512e4c174598b5f93cffd9ac2d2b/FLAGae7c6a391 [2022-11-20 20:04:00,976 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/data/dd96bc07c/b669512e4c174598b5f93cffd9ac2d2b [2022-11-20 20:04:00,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:04:00,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:04:00,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:04:00,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:04:00,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:04:00,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:04:00" (1/1) ... [2022-11-20 20:04:00,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c7bd1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:00, skipping insertion in model container [2022-11-20 20:04:00,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:04:00" (1/1) ... [2022-11-20 20:04:01,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:04:01,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:04:01,463 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 20:04:02,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:04:02,162 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:04:02,199 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 20:04:02,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:04:02,508 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:04:02,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02 WrapperNode [2022-11-20 20:04:02,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:04:02,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:04:02,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:04:02,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:04:02,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (1/1) ... [2022-11-20 20:04:02,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (1/1) ... [2022-11-20 20:04:02,619 INFO L138 Inliner]: procedures = 501, calls = 59, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 92 [2022-11-20 20:04:02,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:04:02,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:04:02,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:04:02,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:04:02,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (1/1) ... [2022-11-20 20:04:02,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (1/1) ... [2022-11-20 20:04:02,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (1/1) ... [2022-11-20 20:04:02,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (1/1) ... [2022-11-20 20:04:02,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (1/1) ... [2022-11-20 20:04:02,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (1/1) ... [2022-11-20 20:04:02,650 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (1/1) ... [2022-11-20 20:04:02,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (1/1) ... [2022-11-20 20:04:02,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:04:02,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:04:02,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:04:02,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:04:02,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (1/1) ... [2022-11-20 20:04:02,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:04:02,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:04:02,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:04:02,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:04:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 20:04:02,734 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 20:04:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 20:04:02,735 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 20:04:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:04:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:04:02,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:04:02,736 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 20:04:02,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:04:02,900 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:04:02,902 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:04:03,149 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:04:03,204 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:04:03,204 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 20:04:03,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:04:03 BoogieIcfgContainer [2022-11-20 20:04:03,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:04:03,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:04:03,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:04:03,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:04:03,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:04:00" (1/3) ... [2022-11-20 20:04:03,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63de08d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:04:03, skipping insertion in model container [2022-11-20 20:04:03,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:04:02" (2/3) ... [2022-11-20 20:04:03,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63de08d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:04:03, skipping insertion in model container [2022-11-20 20:04:03,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:04:03" (3/3) ... [2022-11-20 20:04:03,227 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_max_multiply_17_good.i [2022-11-20 20:04:03,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:04:03,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-20 20:04:03,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:04:03,320 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=FINITE_AUTOMATA, 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;@5a685d67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:04:03,321 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-20 20:04:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 26 states have (on average 1.7307692307692308) internal successors, (45), 41 states have internal predecessors, (45), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-20 20:04:03,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 20:04:03,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:03,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:04:03,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-20 20:04:03,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:03,342 INFO L85 PathProgramCache]: Analyzing trace with hash 600675012, now seen corresponding path program 1 times [2022-11-20 20:04:03,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:03,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123651621] [2022-11-20 20:04:03,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:03,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:04:03,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:03,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123651621] [2022-11-20 20:04:03,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123651621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:04:03,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:04:03,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:04:03,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010980617] [2022-11-20 20:04:03,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:04:03,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:04:03,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:04:03,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:04:03,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:04:03,752 INFO L87 Difference]: Start difference. First operand has 46 states, 26 states have (on average 1.7307692307692308) internal successors, (45), 41 states have internal predecessors, (45), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:04:03,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:03,853 INFO L93 Difference]: Finished difference Result 89 states and 106 transitions. [2022-11-20 20:04:03,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:04:03,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2022-11-20 20:04:03,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:03,869 INFO L225 Difference]: With dead ends: 89 [2022-11-20 20:04:03,869 INFO L226 Difference]: Without dead ends: 46 [2022-11-20 20:04:03,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:04:03,881 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 3 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:03,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 126 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:04:03,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-20 20:04:03,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-20 20:04:03,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 42 states have internal predecessors, (46), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 20:04:03,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2022-11-20 20:04:03,931 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 7 [2022-11-20 20:04:03,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:03,932 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2022-11-20 20:04:03,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:04:03,933 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2022-11-20 20:04:03,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 20:04:03,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:03,935 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:04:03,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:04:03,936 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-20 20:04:03,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:03,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1875588172, now seen corresponding path program 1 times [2022-11-20 20:04:03,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:03,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348960768] [2022-11-20 20:04:03,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:03,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:04:04,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:04,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348960768] [2022-11-20 20:04:04,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348960768] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:04:04,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215381316] [2022-11-20 20:04:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:04,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:04:04,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:04:04,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:04:04,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:04:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:04,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:04:04,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:04:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:04:04,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:04:04,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215381316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:04:04,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:04:04,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 20:04:04,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419708696] [2022-11-20 20:04:04,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:04:04,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:04:04,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:04:04,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:04:04,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:04:04,379 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:04:04,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:04,436 INFO L93 Difference]: Finished difference Result 82 states and 97 transitions. [2022-11-20 20:04:04,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:04:04,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-20 20:04:04,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:04,439 INFO L225 Difference]: With dead ends: 82 [2022-11-20 20:04:04,439 INFO L226 Difference]: Without dead ends: 42 [2022-11-20 20:04:04,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:04:04,441 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 70 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:04,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 82 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:04:04,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-20 20:04:04,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-20 20:04:04,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 38 states have internal predecessors, (41), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 20:04:04,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-11-20 20:04:04,461 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 10 [2022-11-20 20:04:04,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:04,462 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-11-20 20:04:04,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:04:04,463 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-11-20 20:04:04,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 20:04:04,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:04,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:04:04,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 20:04:04,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:04:04,672 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-20 20:04:04,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:04,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1445500168, now seen corresponding path program 1 times [2022-11-20 20:04:04,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:04,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419195787] [2022-11-20 20:04:04,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:04,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:04,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 20:04:04,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:04,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419195787] [2022-11-20 20:04:04,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419195787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:04:04,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:04:04,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:04:04,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267020931] [2022-11-20 20:04:04,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:04:04,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:04:04,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:04:04,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:04:04,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:04:04,800 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:04:04,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:04,863 INFO L93 Difference]: Finished difference Result 75 states and 89 transitions. [2022-11-20 20:04:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:04:04,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-20 20:04:04,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:04,892 INFO L225 Difference]: With dead ends: 75 [2022-11-20 20:04:04,892 INFO L226 Difference]: Without dead ends: 56 [2022-11-20 20:04:04,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:04:04,894 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 13 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:04,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 78 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:04:04,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-20 20:04:04,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 43. [2022-11-20 20:04:04,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 39 states have internal predecessors, (42), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 20:04:04,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2022-11-20 20:04:04,904 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 12 [2022-11-20 20:04:04,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:04,905 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2022-11-20 20:04:04,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:04:04,905 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-11-20 20:04:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 20:04:04,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:04,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:04:04,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 20:04:04,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-20 20:04:04,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:04,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1863856083, now seen corresponding path program 1 times [2022-11-20 20:04:04,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:04,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049060862] [2022-11-20 20:04:04,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:04,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:04,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:04:04,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:04,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049060862] [2022-11-20 20:04:04,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049060862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:04:04,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:04:04,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:04:04,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015161421] [2022-11-20 20:04:04,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:04:04,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:04:04,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:04:04,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:04:04,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:04:04,982 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:04:05,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:05,010 INFO L93 Difference]: Finished difference Result 73 states and 85 transitions. [2022-11-20 20:04:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:04:05,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-11-20 20:04:05,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:05,012 INFO L225 Difference]: With dead ends: 73 [2022-11-20 20:04:05,012 INFO L226 Difference]: Without dead ends: 38 [2022-11-20 20:04:05,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:04:05,014 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:05,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 35 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:04:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-20 20:04:05,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-20 20:04:05,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.44) internal successors, (36), 33 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:04:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-20 20:04:05,022 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 13 [2022-11-20 20:04:05,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:05,023 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-20 20:04:05,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:04:05,023 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-20 20:04:05,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 20:04:05,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:05,024 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:04:05,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 20:04:05,025 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-20 20:04:05,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:05,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1341916471, now seen corresponding path program 1 times [2022-11-20 20:04:05,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:05,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513003660] [2022-11-20 20:04:05,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:05,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:05,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 20:04:05,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:05,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513003660] [2022-11-20 20:04:05,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513003660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:04:05,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:04:05,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:04:05,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825815852] [2022-11-20 20:04:05,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:04:05,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:04:05,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:04:05,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:04:05,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:04:05,100 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 20:04:05,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:05,180 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2022-11-20 20:04:05,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:04:05,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-11-20 20:04:05,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:05,188 INFO L225 Difference]: With dead ends: 46 [2022-11-20 20:04:05,188 INFO L226 Difference]: Without dead ends: 44 [2022-11-20 20:04:05,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:04:05,193 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 3 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:05,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 86 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:04:05,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-20 20:04:05,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-20 20:04:05,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 38 states have internal predecessors, (41), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 20:04:05,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-20 20:04:05,214 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 17 [2022-11-20 20:04:05,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:05,215 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-20 20:04:05,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 20:04:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-20 20:04:05,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 20:04:05,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:05,217 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:04:05,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 20:04:05,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-20 20:04:05,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:05,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1000695532, now seen corresponding path program 1 times [2022-11-20 20:04:05,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:05,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743552083] [2022-11-20 20:04:05,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:05,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:05,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:04:05,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:05,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743552083] [2022-11-20 20:04:05,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743552083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:04:05,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:04:05,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:04:05,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694095903] [2022-11-20 20:04:05,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:04:05,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:04:05,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:04:05,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:04:05,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:04:05,363 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:04:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:05,427 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2022-11-20 20:04:05,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:04:05,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-20 20:04:05,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:05,432 INFO L225 Difference]: With dead ends: 63 [2022-11-20 20:04:05,432 INFO L226 Difference]: Without dead ends: 47 [2022-11-20 20:04:05,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:04:05,443 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 3 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:05,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 92 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:04:05,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-20 20:04:05,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-20 20:04:05,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 41 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 20:04:05,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-11-20 20:04:05,461 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 21 [2022-11-20 20:04:05,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:05,462 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-20 20:04:05,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:04:05,462 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-11-20 20:04:05,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 20:04:05,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:05,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:04:05,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 20:04:05,464 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-20 20:04:05,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:05,466 INFO L85 PathProgramCache]: Analyzing trace with hash 352704140, now seen corresponding path program 1 times [2022-11-20 20:04:05,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:05,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624535471] [2022-11-20 20:04:05,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:05,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:05,593 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:04:05,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:05,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624535471] [2022-11-20 20:04:05,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624535471] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:04:05,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176429450] [2022-11-20 20:04:05,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:05,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:04:05,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:04:05,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:04:05,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 20:04:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:05,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:04:05,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:04:05,729 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:04:05,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:04:05,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176429450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:04:05,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:04:05,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 20:04:05,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702303579] [2022-11-20 20:04:05,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:04:05,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:04:05,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:04:05,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:04:05,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:04:05,732 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:04:05,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:05,780 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2022-11-20 20:04:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:04:05,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-11-20 20:04:05,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:05,784 INFO L225 Difference]: With dead ends: 62 [2022-11-20 20:04:05,784 INFO L226 Difference]: Without dead ends: 43 [2022-11-20 20:04:05,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:04:05,787 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 15 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:05,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 90 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:04:05,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-20 20:04:05,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-20 20:04:05,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 37 states have internal predecessors, (39), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 20:04:05,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-11-20 20:04:05,803 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 24 [2022-11-20 20:04:05,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:05,804 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-11-20 20:04:05,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:04:05,805 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-11-20 20:04:05,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 20:04:05,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:05,808 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:04:05,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 20:04:06,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 20:04:06,015 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-20 20:04:06,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:06,016 INFO L85 PathProgramCache]: Analyzing trace with hash -955162173, now seen corresponding path program 1 times [2022-11-20 20:04:06,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:06,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470051568] [2022-11-20 20:04:06,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:06,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:06,107 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 20:04:06,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:06,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470051568] [2022-11-20 20:04:06,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470051568] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:04:06,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102608376] [2022-11-20 20:04:06,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:06,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:04:06,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:04:06,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:04:06,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 20:04:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:06,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:04:06,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:04:06,256 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 20:04:06,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:04:06,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102608376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:04:06,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:04:06,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 20:04:06,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052510789] [2022-11-20 20:04:06,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:04:06,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:04:06,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:04:06,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:04:06,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:04:06,259 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:04:06,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:06,314 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2022-11-20 20:04:06,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:04:06,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2022-11-20 20:04:06,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:06,316 INFO L225 Difference]: With dead ends: 64 [2022-11-20 20:04:06,316 INFO L226 Difference]: Without dead ends: 35 [2022-11-20 20:04:06,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:04:06,319 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 19 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:06,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 63 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:04:06,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-20 20:04:06,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-20 20:04:06,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 30 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:04:06,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-11-20 20:04:06,330 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 26 [2022-11-20 20:04:06,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:06,330 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-11-20 20:04:06,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:04:06,331 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-11-20 20:04:06,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 20:04:06,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:06,332 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:04:06,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 20:04:06,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 20:04:06,538 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-20 20:04:06,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:06,539 INFO L85 PathProgramCache]: Analyzing trace with hash -353422446, now seen corresponding path program 1 times [2022-11-20 20:04:06,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:06,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746114251] [2022-11-20 20:04:06,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:06,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:06,587 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:04:06,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:06,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746114251] [2022-11-20 20:04:06,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746114251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:04:06,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:04:06,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:04:06,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519074262] [2022-11-20 20:04:06,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:04:06,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:04:06,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:04:06,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:04:06,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:04:06,589 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:04:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:06,615 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-11-20 20:04:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:04:06,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-11-20 20:04:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:06,616 INFO L225 Difference]: With dead ends: 47 [2022-11-20 20:04:06,616 INFO L226 Difference]: Without dead ends: 33 [2022-11-20 20:04:06,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:04:06,617 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:06,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 37 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:04:06,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-20 20:04:06,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-20 20:04:06,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 27 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:04:06,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-11-20 20:04:06,623 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 26 [2022-11-20 20:04:06,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:06,624 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-11-20 20:04:06,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 20:04:06,624 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-11-20 20:04:06,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-20 20:04:06,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:06,626 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:04:06,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 20:04:06,627 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-20 20:04:06,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:06,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1416578388, now seen corresponding path program 1 times [2022-11-20 20:04:06,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:06,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703278627] [2022-11-20 20:04:06,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:06,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 20:04:06,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:06,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703278627] [2022-11-20 20:04:06,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703278627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:04:06,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:04:06,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:04:06,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403689245] [2022-11-20 20:04:06,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:04:06,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:04:06,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:04:06,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:04:06,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:04:06,732 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-11-20 20:04:06,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:06,776 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2022-11-20 20:04:06,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:04:06,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 32 [2022-11-20 20:04:06,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:06,777 INFO L225 Difference]: With dead ends: 43 [2022-11-20 20:04:06,777 INFO L226 Difference]: Without dead ends: 41 [2022-11-20 20:04:06,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:04:06,778 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:06,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 67 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:04:06,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-20 20:04:06,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-20 20:04:06,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 34 states have internal predecessors, (35), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 20:04:06,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2022-11-20 20:04:06,785 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 32 [2022-11-20 20:04:06,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:06,786 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2022-11-20 20:04:06,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-11-20 20:04:06,786 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2022-11-20 20:04:06,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 20:04:06,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:06,787 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:04:06,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 20:04:06,788 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-20 20:04:06,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:06,788 INFO L85 PathProgramCache]: Analyzing trace with hash 110217176, now seen corresponding path program 1 times [2022-11-20 20:04:06,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:06,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573423930] [2022-11-20 20:04:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:06,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:06,876 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 20:04:06,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:06,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573423930] [2022-11-20 20:04:06,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573423930] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:04:06,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487160014] [2022-11-20 20:04:06,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:06,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:04:06,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:04:06,879 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:04:06,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 20:04:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:06,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:04:06,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:04:07,020 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 20:04:07,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:04:07,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487160014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:04:07,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:04:07,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 20:04:07,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681239478] [2022-11-20 20:04:07,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:04:07,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:04:07,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:04:07,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:04:07,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:04:07,023 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 20:04:07,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:07,069 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2022-11-20 20:04:07,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:04:07,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2022-11-20 20:04:07,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:07,070 INFO L225 Difference]: With dead ends: 44 [2022-11-20 20:04:07,070 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 20:04:07,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:04:07,072 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:07,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 75 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:04:07,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 20:04:07,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 20:04:07,073 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) [2022-11-20 20:04:07,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 20:04:07,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2022-11-20 20:04:07,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:07,074 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 20:04:07,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-20 20:04:07,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 20:04:07,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 20:04:07,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-20 20:04:07,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-20 20:04:07,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-20 20:04:07,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-20 20:04:07,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-20 20:04:07,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-20 20:04:07,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-20 20:04:07,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-20 20:04:07,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-20 20:04:07,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-20 20:04:07,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-20 20:04:07,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-20 20:04:07,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-20 20:04:07,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 20:04:07,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 20:04:07,442 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-20 20:04:07,442 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-20 20:04:07,442 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-20 20:04:07,442 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-20 20:04:07,443 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1563) no Hoare annotation was computed. [2022-11-20 20:04:07,443 INFO L899 garLoopResultBuilder]: For program point L1563(line 1563) no Hoare annotation was computed. [2022-11-20 20:04:07,443 INFO L899 garLoopResultBuilder]: For program point L1563-1(line 1563) no Hoare annotation was computed. [2022-11-20 20:04:07,443 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1578) no Hoare annotation was computed. [2022-11-20 20:04:07,443 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1553) no Hoare annotation was computed. [2022-11-20 20:04:07,443 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 20:04:07,444 INFO L895 garLoopResultBuilder]: At program point L1564(line 1564) the Hoare annotation is: false [2022-11-20 20:04:07,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1586) no Hoare annotation was computed. [2022-11-20 20:04:07,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1553) no Hoare annotation was computed. [2022-11-20 20:04:07,444 INFO L899 garLoopResultBuilder]: For program point L1557-2(lines 1557 1571) no Hoare annotation was computed. [2022-11-20 20:04:07,444 INFO L899 garLoopResultBuilder]: For program point L1557-3(line 1557) no Hoare annotation was computed. [2022-11-20 20:04:07,444 INFO L899 garLoopResultBuilder]: For program point L1557-4(line 1557) no Hoare annotation was computed. [2022-11-20 20:04:07,445 INFO L895 garLoopResultBuilder]: At program point L1557-5(lines 1557 1571) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= 2147483647 |ULTIMATE.start_goodB2G_~data~0#1|))) (or (and .cse0 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|) .cse1) (and .cse0 (= |ULTIMATE.start_goodB2G_~k~0#1| 0) .cse1))) [2022-11-20 20:04:07,445 INFO L899 garLoopResultBuilder]: For program point L1582-2(lines 1582 1589) no Hoare annotation was computed. [2022-11-20 20:04:07,445 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1586) no Hoare annotation was computed. [2022-11-20 20:04:07,445 INFO L899 garLoopResultBuilder]: For program point L1582-3(line 1582) no Hoare annotation was computed. [2022-11-20 20:04:07,445 INFO L899 garLoopResultBuilder]: For program point L1582-4(line 1582) no Hoare annotation was computed. [2022-11-20 20:04:07,446 INFO L895 garLoopResultBuilder]: At program point L1582-5(lines 1582 1589) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|)) (.cse3 (<= 2147483647 |ULTIMATE.start_goodB2G_~data~0#1|)) (.cse4 (= |ULTIMATE.start_goodG2B_~data~1#1| 2))) (or (and .cse0 (<= 1 |ULTIMATE.start_goodG2B_~j~0#1|) .cse1 .cse2 .cse3 .cse4) (and .cse0 (= |ULTIMATE.start_goodG2B_~j~0#1| 0) .cse1 .cse2 .cse3 .cse4))) [2022-11-20 20:04:07,446 INFO L902 garLoopResultBuilder]: At program point L1599(line 1599) the Hoare annotation is: true [2022-11-20 20:04:07,446 INFO L899 garLoopResultBuilder]: For program point L1599-1(line 1599) no Hoare annotation was computed. [2022-11-20 20:04:07,446 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1582) no Hoare annotation was computed. [2022-11-20 20:04:07,446 INFO L899 garLoopResultBuilder]: For program point L1559(lines 1559 1570) no Hoare annotation was computed. [2022-11-20 20:04:07,447 INFO L899 garLoopResultBuilder]: For program point L1584(lines 1584 1588) no Hoare annotation was computed. [2022-11-20 20:04:07,447 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1582) no Hoare annotation was computed. [2022-11-20 20:04:07,447 INFO L902 garLoopResultBuilder]: At program point L1601(line 1601) the Hoare annotation is: true [2022-11-20 20:04:07,447 INFO L895 garLoopResultBuilder]: At program point L1568(line 1568) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodB2G_~k~0#1| 0) (<= 2147483647 |ULTIMATE.start_goodB2G_~data~0#1|)) [2022-11-20 20:04:07,447 INFO L902 garLoopResultBuilder]: At program point L1601-1(line 1601) the Hoare annotation is: true [2022-11-20 20:04:07,447 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1557) no Hoare annotation was computed. [2022-11-20 20:04:07,448 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 20:04:07,448 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1557) no Hoare annotation was computed. [2022-11-20 20:04:07,448 INFO L899 garLoopResultBuilder]: For program point L1561(lines 1561 1569) no Hoare annotation was computed. [2022-11-20 20:04:07,448 INFO L899 garLoopResultBuilder]: For program point L1586(line 1586) no Hoare annotation was computed. [2022-11-20 20:04:07,448 INFO L899 garLoopResultBuilder]: For program point L1586-1(line 1586) no Hoare annotation was computed. [2022-11-20 20:04:07,448 INFO L899 garLoopResultBuilder]: For program point L1553-3(line 1553) no Hoare annotation was computed. [2022-11-20 20:04:07,448 INFO L899 garLoopResultBuilder]: For program point L1553-4(line 1553) no Hoare annotation was computed. [2022-11-20 20:04:07,449 INFO L895 garLoopResultBuilder]: At program point L1553-5(lines 1553 1556) the Hoare annotation is: (or (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (<= 2147483647 |ULTIMATE.start_goodB2G_~data~0#1|)) (= |ULTIMATE.start_goodB2G_~i~1#1| 0)) [2022-11-20 20:04:07,449 INFO L899 garLoopResultBuilder]: For program point L1578-3(line 1578) no Hoare annotation was computed. [2022-11-20 20:04:07,449 INFO L899 garLoopResultBuilder]: For program point L1578-4(line 1578) no Hoare annotation was computed. [2022-11-20 20:04:07,449 INFO L895 garLoopResultBuilder]: At program point L1578-5(lines 1578 1581) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|)) (.cse2 (<= 2147483647 |ULTIMATE.start_goodB2G_~data~0#1|))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_goodG2B_~h~0#1| 0)) (and .cse0 (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|) .cse1 .cse2 (= |ULTIMATE.start_goodG2B_~data~1#1| 2)))) [2022-11-20 20:04:07,449 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1563) no Hoare annotation was computed. [2022-11-20 20:04:07,450 INFO L895 garLoopResultBuilder]: At program point L1587(line 1587) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodG2B_~j~0#1| 0) (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|) (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|) (<= 2147483647 |ULTIMATE.start_goodB2G_~data~0#1|) (= |ULTIMATE.start_goodG2B_~data~1#1| 2)) [2022-11-20 20:04:07,450 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1578) no Hoare annotation was computed. [2022-11-20 20:04:07,454 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:04:07,457 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:04:07,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:04:07 BoogieIcfgContainer [2022-11-20 20:04:07,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:04:07,477 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:04:07,477 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:04:07,477 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:04:07,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:04:03" (3/4) ... [2022-11-20 20:04:07,482 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 20:04:07,489 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 20:04:07,489 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 20:04:07,499 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-20 20:04:07,499 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-20 20:04:07,499 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 20:04:07,500 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:04:07,560 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 20:04:07,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:04:07,562 INFO L158 Benchmark]: Toolchain (without parser) took 6577.68ms. Allocated memory was 151.0MB in the beginning and 216.0MB in the end (delta: 65.0MB). Free memory was 116.5MB in the beginning and 132.0MB in the end (delta: -15.5MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2022-11-20 20:04:07,563 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 151.0MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:04:07,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1522.17ms. Allocated memory was 151.0MB in the beginning and 216.0MB in the end (delta: 65.0MB). Free memory was 116.5MB in the beginning and 180.4MB in the end (delta: -63.9MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. [2022-11-20 20:04:07,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.22ms. Allocated memory is still 216.0MB. Free memory was 180.4MB in the beginning and 177.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:04:07,564 INFO L158 Benchmark]: Boogie Preprocessor took 30.15ms. Allocated memory is still 216.0MB. Free memory was 177.3MB in the beginning and 176.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 20:04:07,565 INFO L158 Benchmark]: RCFGBuilder took 559.79ms. Allocated memory is still 216.0MB. Free memory was 176.1MB in the beginning and 158.4MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 20:04:07,565 INFO L158 Benchmark]: TraceAbstraction took 4259.73ms. Allocated memory is still 216.0MB. Free memory was 157.4MB in the beginning and 135.2MB in the end (delta: 22.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2022-11-20 20:04:07,565 INFO L158 Benchmark]: Witness Printer took 83.21ms. Allocated memory is still 216.0MB. Free memory was 135.2MB in the beginning and 132.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 20:04:07,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 151.0MB. Free memory is still 121.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1522.17ms. Allocated memory was 151.0MB in the beginning and 216.0MB in the end (delta: 65.0MB). Free memory was 116.5MB in the beginning and 180.4MB in the end (delta: -63.9MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.22ms. Allocated memory is still 216.0MB. Free memory was 180.4MB in the beginning and 177.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.15ms. Allocated memory is still 216.0MB. Free memory was 177.3MB in the beginning and 176.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 559.79ms. Allocated memory is still 216.0MB. Free memory was 176.1MB in the beginning and 158.4MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4259.73ms. Allocated memory is still 216.0MB. Free memory was 157.4MB in the beginning and 135.2MB in the end (delta: 22.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 83.21ms. Allocated memory is still 216.0MB. Free memory was 135.2MB in the beginning and 132.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1563]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1563]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1578]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1578]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1582]: 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 3 procedures, 46 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 174 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 164 mSDsluCounter, 831 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 496 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 329 IncrementalHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 335 mSDtfsCounter, 329 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=6, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 31 PreInvPairs, 43 NumberOfFragments, 136 HoareAnnotationTreeSize, 31 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 332 NumberOfCodeBlocks, 332 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 317 ConstructedInterpolants, 0 QuantifiedInterpolants, 475 SizeOfPredicates, 4 NumberOfNonLiveVariables, 504 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 85/89 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 12 specifications checked. All of them hold - InvariantResult [Line: 1601]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1557]: Loop Invariant Derived loop invariant: ((1 <= i && 1 <= k) && 2147483647 <= data) || ((1 <= i && k == 0) && 2147483647 <= data) - InvariantResult [Line: 1578]: Loop Invariant Derived loop invariant: (((1 <= i && 1 <= k) && 2147483647 <= data) && h == 0) || ((((1 <= i && 1 <= h) && 1 <= k) && 2147483647 <= data) && data == 2) - InvariantResult [Line: 1553]: Loop Invariant Derived loop invariant: (1 <= i && 2147483647 <= data) || i == 0 - InvariantResult [Line: 1582]: Loop Invariant Derived loop invariant: (((((1 <= i && 1 <= j) && 1 <= h) && 1 <= k) && 2147483647 <= data) && data == 2) || (((((1 <= i && j == 0) && 1 <= h) && 1 <= k) && 2147483647 <= data) && data == 2) RESULT: Ultimate proved your program to be correct! [2022-11-20 20:04:07,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dfe9621-857f-4a3b-b7e2-a2a0a2c8c56c/bin/utaipan-6cKwYrpEi9/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