./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_24.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_24.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh --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 6c60292dde23ab55828ef032d9fe2f87b2621bfa03c7b2d7ca1f8181db5f622f --- 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-2329fc7 [2022-12-14 04:48:58,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:48:58,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:48:58,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:48:58,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:48:58,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:48:58,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:48:58,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:48:58,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:48:58,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:48:58,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:48:58,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:48:58,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:48:58,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:48:58,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:48:58,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:48:58,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:48:58,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:48:58,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:48:58,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:48:58,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:48:58,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:48:58,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:48:58,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:48:58,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:48:58,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:48:58,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:48:58,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:48:58,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:48:58,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:48:58,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:48:58,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:48:58,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:48:58,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:48:58,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:48:58,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:48:58,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:48:58,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:48:58,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:48:58,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:48:58,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:48:58,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 04:48:58,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:48:58,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:48:58,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:48:58,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:48:58,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:48:58,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:48:58,875 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:48:58,876 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:48:58,876 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:48:58,876 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 04:48:58,876 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:48:58,876 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:48:58,876 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 04:48:58,877 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 04:48:58,877 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:48:58,877 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 04:48:58,877 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 04:48:58,877 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 04:48:58,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:48:58,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 04:48:58,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 04:48:58,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:48:58,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:48:58,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:48:58,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:48:58,879 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 04:48:58,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:48:58,879 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:48:58,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:48:58,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:48:58,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:48:58,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:48:58,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:48:58,880 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 04:48:58,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:48:58,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:48:58,881 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 04:48:58,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 04:48:58,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:48:58,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:48:58,881 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_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c60292dde23ab55828ef032d9fe2f87b2621bfa03c7b2d7ca1f8181db5f622f [2022-12-14 04:48:59,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:48:59,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:48:59,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:48:59,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:48:59,088 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:48:59,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/termination-restricted-15/NO_24.c [2022-12-14 04:49:01,674 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:49:01,795 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:49:01,795 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/sv-benchmarks/c/termination-restricted-15/NO_24.c [2022-12-14 04:49:01,799 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/data/1f8d1c2da/11799ad47e274a068cbe01dfccf61b90/FLAG87ac55599 [2022-12-14 04:49:01,809 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/data/1f8d1c2da/11799ad47e274a068cbe01dfccf61b90 [2022-12-14 04:49:01,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:49:01,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:49:01,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:49:01,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:49:01,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:49:01,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9995167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01, skipping insertion in model container [2022-12-14 04:49:01,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:49:01,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:49:01,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:49:01,930 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:49:01,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:49:01,948 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:49:01,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01 WrapperNode [2022-12-14 04:49:01,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:49:01,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:49:01,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:49:01,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:49:01,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,970 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-12-14 04:49:01,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:49:01,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:49:01,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:49:01,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:49:01,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,983 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:49:01,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:49:01,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:49:01,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:49:01,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (1/1) ... [2022-12-14 04:49:01,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:49:02,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:49:02,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:49:02,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:49:02,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:49:02,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:49:02,117 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:49:02,119 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:49:02,189 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:49:02,199 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:49:02,199 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 04:49:02,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:49:02 BoogieIcfgContainer [2022-12-14 04:49:02,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:49:02,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:49:02,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:49:02,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:49:02,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:49:01" (1/3) ... [2022-12-14 04:49:02,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aeec900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:49:02, skipping insertion in model container [2022-12-14 04:49:02,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:49:01" (2/3) ... [2022-12-14 04:49:02,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aeec900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:49:02, skipping insertion in model container [2022-12-14 04:49:02,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:49:02" (3/3) ... [2022-12-14 04:49:02,209 INFO L112 eAbstractionObserver]: Analyzing ICFG NO_24.c [2022-12-14 04:49:02,225 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:49:02,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 04:49:02,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:49:02,270 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;@77faafb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:49:02,270 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 04:49:02,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 19 states have internal predecessors, (21), 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) [2022-12-14 04:49:02,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 04:49:02,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:49:02,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 04:49:02,279 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 04:49:02,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:49:02,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2084, now seen corresponding path program 1 times [2022-12-14 04:49:02,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:49:02,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797887499] [2022-12-14 04:49:02,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:02,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:49:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:02,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:49:02,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:49:02,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797887499] [2022-12-14 04:49:02,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797887499] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:49:02,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:49:02,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 04:49:02,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686808696] [2022-12-14 04:49:02,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:49:02,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:49:02,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:49:02,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:49:02,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:49:02,430 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 04:49:02,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:49:02,481 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-12-14 04:49:02,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:49:02,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-12-14 04:49:02,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:49:02,489 INFO L225 Difference]: With dead ends: 30 [2022-12-14 04:49:02,489 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 04:49:02,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:49:02,494 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:49:02,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 9 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:49:02,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 04:49:02,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2022-12-14 04:49:02,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:02,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-12-14 04:49:02,525 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 2 [2022-12-14 04:49:02,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:49:02,525 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-12-14 04:49:02,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-12-14 04:49:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-12-14 04:49:02,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 04:49:02,526 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:49:02,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 04:49:02,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 04:49:02,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 04:49:02,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:49:02,528 INFO L85 PathProgramCache]: Analyzing trace with hash 64644, now seen corresponding path program 1 times [2022-12-14 04:49:02,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:49:02,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138351759] [2022-12-14 04:49:02,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:02,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:49:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:02,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:49:02,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:49:02,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138351759] [2022-12-14 04:49:02,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138351759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:49:02,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:49:02,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 04:49:02,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764012819] [2022-12-14 04:49:02,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:49:02,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:49:02,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:49:02,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:49:02,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:49:02,564 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-14 04:49:02,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:49:02,606 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2022-12-14 04:49:02,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:49:02,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 04:49:02,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:49:02,607 INFO L225 Difference]: With dead ends: 26 [2022-12-14 04:49:02,607 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 04:49:02,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:49:02,609 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:49:02,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:49:02,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 04:49:02,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2022-12-14 04:49:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 19 states have internal predecessors, (20), 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) [2022-12-14 04:49:02,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-12-14 04:49:02,615 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 3 [2022-12-14 04:49:02,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:49:02,615 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-12-14 04:49:02,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-14 04:49:02,616 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-12-14 04:49:02,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 04:49:02,616 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:49:02,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 04:49:02,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 04:49:02,617 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 04:49:02,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:49:02,618 INFO L85 PathProgramCache]: Analyzing trace with hash 62124326, now seen corresponding path program 1 times [2022-12-14 04:49:02,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:49:02,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672855045] [2022-12-14 04:49:02,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:02,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:49:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:02,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:49:02,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:49:02,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672855045] [2022-12-14 04:49:02,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672855045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:49:02,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:49:02,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 04:49:02,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663081386] [2022-12-14 04:49:02,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:49:02,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:49:02,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:49:02,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:49:02,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:49:02,656 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:02,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:49:02,690 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-12-14 04:49:02,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:49:02,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 04:49:02,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:49:02,692 INFO L225 Difference]: With dead ends: 24 [2022-12-14 04:49:02,692 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 04:49:02,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:49:02,694 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:49:02,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:49:02,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 04:49:02,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-12-14 04:49:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 21 states have internal predecessors, (22), 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) [2022-12-14 04:49:02,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2022-12-14 04:49:02,699 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 5 [2022-12-14 04:49:02,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:49:02,699 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2022-12-14 04:49:02,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:02,699 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-12-14 04:49:02,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 04:49:02,700 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:49:02,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 04:49:02,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 04:49:02,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 04:49:02,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:49:02,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1925854155, now seen corresponding path program 1 times [2022-12-14 04:49:02,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:49:02,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933126460] [2022-12-14 04:49:02,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:02,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:49:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:49:02,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:49:02,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933126460] [2022-12-14 04:49:02,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933126460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:49:02,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:49:02,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 04:49:02,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153598806] [2022-12-14 04:49:02,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:49:02,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:49:02,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:49:02,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:49:02,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:49:02,737 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-12-14 04:49:02,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:49:02,767 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2022-12-14 04:49:02,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:49:02,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 04:49:02,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:49:02,768 INFO L225 Difference]: With dead ends: 24 [2022-12-14 04:49:02,769 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 04:49:02,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:49:02,770 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:49:02,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:49:02,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 04:49:02,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-14 04:49:02,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 22 states have internal predecessors, (23), 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) [2022-12-14 04:49:02,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2022-12-14 04:49:02,775 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 6 [2022-12-14 04:49:02,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:49:02,776 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2022-12-14 04:49:02,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-12-14 04:49:02,776 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2022-12-14 04:49:02,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 04:49:02,776 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:49:02,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:49:02,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 04:49:02,777 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 04:49:02,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:49:02,777 INFO L85 PathProgramCache]: Analyzing trace with hash -428063288, now seen corresponding path program 1 times [2022-12-14 04:49:02,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:49:02,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738727003] [2022-12-14 04:49:02,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:02,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:49:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:49:02,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:49:02,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738727003] [2022-12-14 04:49:02,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738727003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:49:02,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:49:02,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 04:49:02,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162342481] [2022-12-14 04:49:02,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:49:02,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 04:49:02,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:49:02,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 04:49:02,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:49:02,816 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:02,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:49:02,874 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-12-14 04:49:02,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 04:49:02,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 04:49:02,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:49:02,875 INFO L225 Difference]: With dead ends: 26 [2022-12-14 04:49:02,875 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 04:49:02,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:49:02,876 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:49:02,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:49:02,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 04:49:02,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-12-14 04:49:02,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.5) internal successors, (24), 23 states have internal predecessors, (24), 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) [2022-12-14 04:49:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2022-12-14 04:49:02,881 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 7 [2022-12-14 04:49:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:49:02,882 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2022-12-14 04:49:02,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2022-12-14 04:49:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 04:49:02,883 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:49:02,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:49:02,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 04:49:02,883 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 04:49:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:49:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash -385059987, now seen corresponding path program 1 times [2022-12-14 04:49:02,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:49:02,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422628942] [2022-12-14 04:49:02,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:02,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:49:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:49:02,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:49:02,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422628942] [2022-12-14 04:49:02,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422628942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:49:02,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:49:02,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 04:49:02,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726746756] [2022-12-14 04:49:02,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:49:02,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 04:49:02,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:49:02,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 04:49:02,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:49:02,923 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 04:49:02,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:49:02,950 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2022-12-14 04:49:02,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 04:49:02,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 04:49:02,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:49:02,951 INFO L225 Difference]: With dead ends: 26 [2022-12-14 04:49:02,951 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 04:49:02,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:49:02,952 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:49:02,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:49:02,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 04:49:02,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-14 04:49:02,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:02,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-12-14 04:49:02,956 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 8 [2022-12-14 04:49:02,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:49:02,957 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-12-14 04:49:02,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 04:49:02,957 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-12-14 04:49:02,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 04:49:02,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:49:02,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:49:02,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 04:49:02,958 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 04:49:02,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:49:02,958 INFO L85 PathProgramCache]: Analyzing trace with hash 948042346, now seen corresponding path program 1 times [2022-12-14 04:49:02,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:49:02,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65069209] [2022-12-14 04:49:02,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:02,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:49:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:02,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:49:02,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:49:02,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65069209] [2022-12-14 04:49:02,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65069209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:49:02,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:49:02,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 04:49:02,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210080304] [2022-12-14 04:49:02,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:49:02,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 04:49:02,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:49:02,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 04:49:02,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:49:02,995 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:49:03,027 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-12-14 04:49:03,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 04:49:03,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 04:49:03,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:49:03,028 INFO L225 Difference]: With dead ends: 28 [2022-12-14 04:49:03,028 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 04:49:03,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:49:03,029 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:49:03,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:49:03,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 04:49:03,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-12-14 04:49:03,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 25 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2022-12-14 04:49:03,033 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 9 [2022-12-14 04:49:03,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:49:03,033 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2022-12-14 04:49:03,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,033 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2022-12-14 04:49:03,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 04:49:03,033 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:49:03,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:49:03,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 04:49:03,034 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 04:49:03,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:49:03,034 INFO L85 PathProgramCache]: Analyzing trace with hash -675458289, now seen corresponding path program 1 times [2022-12-14 04:49:03,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:49:03,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066680533] [2022-12-14 04:49:03,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:03,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:49:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:49:03,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:49:03,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066680533] [2022-12-14 04:49:03,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066680533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:49:03,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:49:03,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 04:49:03,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511862814] [2022-12-14 04:49:03,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:49:03,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 04:49:03,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:49:03,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 04:49:03,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 04:49:03,063 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:49:03,093 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-12-14 04:49:03,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 04:49:03,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 04:49:03,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:49:03,094 INFO L225 Difference]: With dead ends: 28 [2022-12-14 04:49:03,094 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 04:49:03,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:49:03,095 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:49:03,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:49:03,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 04:49:03,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-14 04:49:03,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 26 states have internal predecessors, (27), 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) [2022-12-14 04:49:03,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-12-14 04:49:03,100 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 10 [2022-12-14 04:49:03,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:49:03,100 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-12-14 04:49:03,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,100 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-12-14 04:49:03,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 04:49:03,101 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:49:03,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:49:03,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 04:49:03,101 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 04:49:03,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:49:03,101 INFO L85 PathProgramCache]: Analyzing trace with hash 535629559, now seen corresponding path program 1 times [2022-12-14 04:49:03,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:49:03,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151211685] [2022-12-14 04:49:03,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:03,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:49:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:03,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 04:49:03,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:49:03,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151211685] [2022-12-14 04:49:03,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151211685] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:49:03,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:49:03,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:49:03,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194056754] [2022-12-14 04:49:03,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:49:03,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:49:03,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:49:03,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:49:03,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:49:03,146 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:49:03,197 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2022-12-14 04:49:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 04:49:03,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 04:49:03,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:49:03,198 INFO L225 Difference]: With dead ends: 27 [2022-12-14 04:49:03,198 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 04:49:03,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:49:03,199 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:49:03,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:49:03,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 04:49:03,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-12-14 04:49:03,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.368421052631579) internal successors, (26), 25 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2022-12-14 04:49:03,203 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 11 [2022-12-14 04:49:03,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:49:03,204 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2022-12-14 04:49:03,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,204 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2022-12-14 04:49:03,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 04:49:03,204 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:49:03,204 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:49:03,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 04:49:03,204 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 04:49:03,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:49:03,205 INFO L85 PathProgramCache]: Analyzing trace with hash -575352815, now seen corresponding path program 1 times [2022-12-14 04:49:03,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:49:03,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479552105] [2022-12-14 04:49:03,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:03,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:49:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 04:49:03,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:49:03,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479552105] [2022-12-14 04:49:03,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479552105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:49:03,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:49:03,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:49:03,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442076364] [2022-12-14 04:49:03,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:49:03,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:49:03,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:49:03,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:49:03,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:49:03,245 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:49:03,298 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2022-12-14 04:49:03,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 04:49:03,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 04:49:03,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:49:03,299 INFO L225 Difference]: With dead ends: 26 [2022-12-14 04:49:03,299 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 04:49:03,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-14 04:49:03,299 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:49:03,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:49:03,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 04:49:03,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-14 04:49:03,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-12-14 04:49:03,303 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 12 [2022-12-14 04:49:03,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:49:03,303 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-12-14 04:49:03,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,304 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-12-14 04:49:03,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 04:49:03,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:49:03,304 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:49:03,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 04:49:03,305 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 04:49:03,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:49:03,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1136727411, now seen corresponding path program 1 times [2022-12-14 04:49:03,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:49:03,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066719635] [2022-12-14 04:49:03,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:03,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:49:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:03,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:49:03,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:49:03,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066719635] [2022-12-14 04:49:03,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066719635] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 04:49:03,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304846855] [2022-12-14 04:49:03,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:49:03,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:49:03,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:49:03,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 04:49:03,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 04:49:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:49:03,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 04:49:03,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 04:49:03,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:49:03,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 04:49:03,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 04:49:03,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304846855] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 04:49:03,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1707099595] [2022-12-14 04:49:03,510 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-12-14 04:49:03,510 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 04:49:03,513 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 04:49:03,519 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 04:49:03,519 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 04:49:03,725 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 04:49:03,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1707099595] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:49:03,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 04:49:03,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 11 [2022-12-14 04:49:03,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212555407] [2022-12-14 04:49:03,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:49:03,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 04:49:03,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:49:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 04:49:03,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-12-14 04:49:03,869 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:49:03,927 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-12-14 04:49:03,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:49:03,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 04:49:03,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:49:03,928 INFO L225 Difference]: With dead ends: 25 [2022-12-14 04:49:03,928 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 04:49:03,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-12-14 04:49:03,929 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:49:03,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 04:49:03,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 04:49:03,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 04:49:03,930 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) [2022-12-14 04:49:03,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 04:49:03,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-14 04:49:03,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:49:03,931 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 04:49:03,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 04:49:03,931 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 04:49:03,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 04:49:03,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-14 04:49:03,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-14 04:49:03,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-14 04:49:03,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-14 04:49:03,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-14 04:49:03,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-14 04:49:03,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-14 04:49:03,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-14 04:49:03,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 04:49:04,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 04:49:04,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 04:49:04,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-12-14 04:49:04,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 04:49:04,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-12-14 04:49:04,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2022-12-14 04:49:04,171 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-12-14 04:49:04,171 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-12-14 04:49:04,171 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-12-14 04:49:04,172 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 04:49:04,172 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 11 15) no Hoare annotation was computed. [2022-12-14 04:49:04,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-12-14 04:49:04,172 INFO L895 garLoopResultBuilder]: At program point L11-4(lines 11 15) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~b~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (= 2 |ULTIMATE.start_main_~b~0#1|)) (and (= |ULTIMATE.start_main_~b~0#1| 1) (= |ULTIMATE.start_main_~a~0#1| (+ |ULTIMATE.start_main_~b~0#1| 1)))) [2022-12-14 04:49:04,172 INFO L895 garLoopResultBuilder]: At program point L11-5(lines 11 15) the Hoare annotation is: (<= 3 (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) [2022-12-14 04:49:04,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-12-14 04:49:04,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-12-14 04:49:04,173 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2022-12-14 04:49:04,173 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2022-12-14 04:49:04,173 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2022-12-14 04:49:04,173 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-12-14 04:49:04,173 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-12-14 04:49:04,173 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-12-14 04:49:04,175 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:49:04,177 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 04:49:04,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:49:04 BoogieIcfgContainer [2022-12-14 04:49:04,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 04:49:04,188 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 04:49:04,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 04:49:04,188 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 04:49:04,189 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:49:02" (3/4) ... [2022-12-14 04:49:04,191 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 04:49:04,198 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 04:49:04,198 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 04:49:04,198 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 04:49:04,217 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 04:49:04,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 04:49:04,218 INFO L158 Benchmark]: Toolchain (without parser) took 2405.91ms. Allocated memory was 176.2MB in the beginning and 220.2MB in the end (delta: 44.0MB). Free memory was 134.5MB in the beginning and 150.6MB in the end (delta: -16.1MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2022-12-14 04:49:04,218 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:49:04,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 136.09ms. Allocated memory is still 176.2MB. Free memory was 134.3MB in the beginning and 125.0MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 04:49:04,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.67ms. Allocated memory is still 176.2MB. Free memory was 125.0MB in the beginning and 123.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:49:04,219 INFO L158 Benchmark]: Boogie Preprocessor took 14.06ms. Allocated memory is still 176.2MB. Free memory was 123.7MB in the beginning and 122.8MB in the end (delta: 847.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:49:04,219 INFO L158 Benchmark]: RCFGBuilder took 216.40ms. Allocated memory is still 176.2MB. Free memory was 122.8MB in the beginning and 113.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 04:49:04,219 INFO L158 Benchmark]: TraceAbstraction took 1984.25ms. Allocated memory was 176.2MB in the beginning and 220.2MB in the end (delta: 44.0MB). Free memory was 112.6MB in the beginning and 153.8MB in the end (delta: -41.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-12-14 04:49:04,219 INFO L158 Benchmark]: Witness Printer took 29.26ms. Allocated memory is still 220.2MB. Free memory was 153.8MB in the beginning and 150.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:49:04,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 136.09ms. Allocated memory is still 176.2MB. Free memory was 134.3MB in the beginning and 125.0MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.67ms. Allocated memory is still 176.2MB. Free memory was 125.0MB in the beginning and 123.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.06ms. Allocated memory is still 176.2MB. Free memory was 123.7MB in the beginning and 122.8MB in the end (delta: 847.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 216.40ms. Allocated memory is still 176.2MB. Free memory was 122.8MB in the beginning and 113.3MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1984.25ms. Allocated memory was 176.2MB in the beginning and 220.2MB in the end (delta: 44.0MB). Free memory was 112.6MB in the beginning and 153.8MB in the end (delta: -41.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 29.26ms. Allocated memory is still 220.2MB. Free memory was 153.8MB in the beginning and 150.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 377 IncrementalHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 76 mSDtfsCounter, 377 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=8, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 24 HoareAnnotationTreeSize, 2 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 49 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 480 SizeOfPredicates, 1 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 3/15 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: OVERALL_TIME: 0.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 12, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 31, TOOLS_POST_TIME: 0.1s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 31, TOOLS_QUANTIFIERELIM_TIME: 0.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 48, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 12, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 123, DAG_COMPRESSION_RETAINED_NODES: 39, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (b == a + 1 && 2 == b) || (b == 1 && a == b + 1) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 3 <= a + b RESULT: Ultimate proved your program to be correct! [2022-12-14 04:49:04,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b419598f-6f4d-48ef-9f22-7620766a5e79/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE