./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/systemc/token_ring.02.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/token_ring.02.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba --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 32bit --witnessprinter.graph.data.programhash bc8487f898950b83c481f83a71342af68752fb6e7598d76df123761c32c89f72 --- 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-b5237d8 [2022-11-22 02:48:41,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:48:41,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:48:41,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:48:41,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:48:41,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:48:41,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:48:41,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:48:41,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:48:41,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:48:41,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:48:41,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:48:41,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:48:41,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:48:41,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:48:41,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:48:41,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:48:41,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:48:41,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:48:41,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:48:41,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:48:41,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:48:41,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:48:41,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:48:41,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:48:41,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:48:41,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:48:41,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:48:41,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:48:41,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:48:41,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:48:41,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:48:41,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:48:41,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:48:41,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:48:41,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:48:41,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:48:41,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:48:41,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:48:41,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:48:41,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:48:41,926 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:48:41,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:48:41,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:48:41,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:48:41,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:48:41,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:48:41,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:48:41,950 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:48:41,951 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:48:41,951 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:48:41,951 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:48:41,952 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:48:41,952 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:48:41,952 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:48:41,953 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:48:41,953 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:48:41,953 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:48:41,954 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:48:41,954 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:48:41,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:48:41,955 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:48:41,956 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:48:41,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:48:41,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:48:41,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:48:41,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:48:41,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:48:41,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:48:41,958 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:48:41,958 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:48:41,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:48:41,959 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:48:41,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:48:41,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:48:41,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:48:41,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:48:41,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:48:41,961 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:48:41,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:48:41,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:48:41,962 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:48:41,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:48:41,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:48:41,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:48:41,963 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_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc8487f898950b83c481f83a71342af68752fb6e7598d76df123761c32c89f72 [2022-11-22 02:48:42,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:48:42,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:48:42,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:48:42,299 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:48:42,300 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:48:42,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/systemc/token_ring.02.cil-2.c [2022-11-22 02:48:45,323 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:48:45,592 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:48:45,592 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/sv-benchmarks/c/systemc/token_ring.02.cil-2.c [2022-11-22 02:48:45,602 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/data/38fa9547d/329060209d3e402c8eef9637e8081e26/FLAG3c61d5479 [2022-11-22 02:48:45,615 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/data/38fa9547d/329060209d3e402c8eef9637e8081e26 [2022-11-22 02:48:45,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:48:45,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:48:45,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:48:45,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:48:45,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:48:45,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:45,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ad899e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45, skipping insertion in model container [2022-11-22 02:48:45,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:45,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:48:45,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:48:45,823 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/sv-benchmarks/c/systemc/token_ring.02.cil-2.c[671,684] [2022-11-22 02:48:45,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:48:45,905 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:48:45,915 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/sv-benchmarks/c/systemc/token_ring.02.cil-2.c[671,684] [2022-11-22 02:48:45,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:48:45,963 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:48:45,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45 WrapperNode [2022-11-22 02:48:45,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:48:45,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:48:45,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:48:45,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:48:45,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:46,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:46,032 INFO L138 Inliner]: procedures = 32, calls = 38, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 284 [2022-11-22 02:48:46,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:48:46,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:48:46,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:48:46,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:48:46,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:46,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:46,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:46,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:46,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:46,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:46,070 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:46,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:46,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:48:46,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:48:46,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:48:46,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:48:46,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (1/1) ... [2022-11-22 02:48:46,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:48:46,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:48:46,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:48:46,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:48:46,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:48:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-11-22 02:48:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-11-22 02:48:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-22 02:48:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-22 02:48:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-22 02:48:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-22 02:48:46,169 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-22 02:48:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-22 02:48:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-22 02:48:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-22 02:48:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-22 02:48:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-22 02:48:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:48:46,170 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-22 02:48:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-22 02:48:46,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:48:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:48:46,305 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:48:46,308 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:48:46,869 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:48:47,037 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:48:47,037 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-22 02:48:47,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:48:47 BoogieIcfgContainer [2022-11-22 02:48:47,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:48:47,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:48:47,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:48:47,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:48:47,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:48:45" (1/3) ... [2022-11-22 02:48:47,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cb0fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:48:47, skipping insertion in model container [2022-11-22 02:48:47,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:45" (2/3) ... [2022-11-22 02:48:47,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cb0fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:48:47, skipping insertion in model container [2022-11-22 02:48:47,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:48:47" (3/3) ... [2022-11-22 02:48:47,051 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.02.cil-2.c [2022-11-22 02:48:47,071 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:48:47,071 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 02:48:47,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:48:47,131 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;@3e0f4495, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:48:47,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-22 02:48:47,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 63 states have (on average 1.5396825396825398) internal successors, (97), 72 states have internal predecessors, (97), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-22 02:48:47,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-22 02:48:47,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:48:47,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:48:47,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:48:47,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:48:47,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1566583066, now seen corresponding path program 1 times [2022-11-22 02:48:47,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:48:47,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816612957] [2022-11-22 02:48:47,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:48:47,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:48:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:48:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:48:47,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:48:47,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816612957] [2022-11-22 02:48:47,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816612957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:48:47,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:48:47,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:48:47,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707573346] [2022-11-22 02:48:47,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:48:47,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:48:47,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:48:47,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:48:47,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:48:47,544 INFO L87 Difference]: Start difference. First operand has 95 states, 63 states have (on average 1.5396825396825398) internal successors, (97), 72 states have internal predecessors, (97), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 02:48:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:48:47,900 INFO L93 Difference]: Finished difference Result 259 states and 368 transitions. [2022-11-22 02:48:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:48:47,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2022-11-22 02:48:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:48:47,918 INFO L225 Difference]: With dead ends: 259 [2022-11-22 02:48:47,919 INFO L226 Difference]: Without dead ends: 162 [2022-11-22 02:48:47,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:48:47,934 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 209 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:48:47,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 308 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:48:47,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-22 02:48:47,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 157. [2022-11-22 02:48:48,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 111 states have (on average 1.4324324324324325) internal successors, (159), 118 states have internal predecessors, (159), 28 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2022-11-22 02:48:48,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 215 transitions. [2022-11-22 02:48:48,004 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 215 transitions. Word has length 35 [2022-11-22 02:48:48,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:48:48,005 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 215 transitions. [2022-11-22 02:48:48,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 02:48:48,005 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 215 transitions. [2022-11-22 02:48:48,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-22 02:48:48,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:48:48,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:48:48,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:48:48,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:48:48,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:48:48,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1627753802, now seen corresponding path program 1 times [2022-11-22 02:48:48,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:48:48,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328508476] [2022-11-22 02:48:48,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:48:48,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:48:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:48:48,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:48:48,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:48:48,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328508476] [2022-11-22 02:48:48,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328508476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:48:48,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:48:48,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:48:48,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980107886] [2022-11-22 02:48:48,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:48:48,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:48:48,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:48:48,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:48:48,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:48:48,142 INFO L87 Difference]: Start difference. First operand 157 states and 215 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 02:48:48,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:48:48,692 INFO L93 Difference]: Finished difference Result 847 states and 1209 transitions. [2022-11-22 02:48:48,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:48:48,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2022-11-22 02:48:48,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:48:48,712 INFO L225 Difference]: With dead ends: 847 [2022-11-22 02:48:48,713 INFO L226 Difference]: Without dead ends: 695 [2022-11-22 02:48:48,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:48:48,717 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 405 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:48:48,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 524 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:48:48,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-11-22 02:48:48,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 655. [2022-11-22 02:48:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 477 states have (on average 1.3815513626834381) internal successors, (659), 490 states have internal predecessors, (659), 112 states have call successors, (112), 60 states have call predecessors, (112), 60 states have return successors, (154), 105 states have call predecessors, (154), 112 states have call successors, (154) [2022-11-22 02:48:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 925 transitions. [2022-11-22 02:48:48,892 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 925 transitions. Word has length 36 [2022-11-22 02:48:48,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:48:48,893 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 925 transitions. [2022-11-22 02:48:48,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 02:48:48,893 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 925 transitions. [2022-11-22 02:48:48,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-22 02:48:48,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:48:48,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:48:48,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:48:48,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:48:48,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:48:48,896 INFO L85 PathProgramCache]: Analyzing trace with hash 765390970, now seen corresponding path program 1 times [2022-11-22 02:48:48,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:48:48,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399507197] [2022-11-22 02:48:48,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:48:48,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:48:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:48:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:48:49,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:48:49,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399507197] [2022-11-22 02:48:49,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399507197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:48:49,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:48:49,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:48:49,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173774480] [2022-11-22 02:48:49,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:48:49,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:48:49,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:48:49,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:48:49,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:48:49,184 INFO L87 Difference]: Start difference. First operand 655 states and 925 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 02:48:49,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:48:49,680 INFO L93 Difference]: Finished difference Result 1751 states and 2474 transitions. [2022-11-22 02:48:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:48:49,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2022-11-22 02:48:49,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:48:49,694 INFO L225 Difference]: With dead ends: 1751 [2022-11-22 02:48:49,694 INFO L226 Difference]: Without dead ends: 1102 [2022-11-22 02:48:49,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:48:49,704 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 295 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:48:49,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 340 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:48:49,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-11-22 02:48:49,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1000. [2022-11-22 02:48:49,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 734 states have (on average 1.3514986376021798) internal successors, (992), 748 states have internal predecessors, (992), 162 states have call successors, (162), 96 states have call predecessors, (162), 98 states have return successors, (223), 156 states have call predecessors, (223), 162 states have call successors, (223) [2022-11-22 02:48:49,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1377 transitions. [2022-11-22 02:48:49,861 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1377 transitions. Word has length 40 [2022-11-22 02:48:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:48:49,862 INFO L495 AbstractCegarLoop]: Abstraction has 1000 states and 1377 transitions. [2022-11-22 02:48:49,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-22 02:48:49,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1377 transitions. [2022-11-22 02:48:49,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-22 02:48:49,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:48:49,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:48:49,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:48:49,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:48:49,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:48:49,874 INFO L85 PathProgramCache]: Analyzing trace with hash 305062014, now seen corresponding path program 1 times [2022-11-22 02:48:49,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:48:49,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236777004] [2022-11-22 02:48:49,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:48:49,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:48:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:48:49,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:48:49,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:48:49,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236777004] [2022-11-22 02:48:49,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236777004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:48:49,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:48:49,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:48:49,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696522148] [2022-11-22 02:48:49,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:48:49,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:48:49,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:48:49,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:48:49,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:48:49,937 INFO L87 Difference]: Start difference. First operand 1000 states and 1377 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-22 02:48:50,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:48:50,121 INFO L93 Difference]: Finished difference Result 2178 states and 3031 transitions. [2022-11-22 02:48:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:48:50,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 41 [2022-11-22 02:48:50,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:48:50,130 INFO L225 Difference]: With dead ends: 2178 [2022-11-22 02:48:50,130 INFO L226 Difference]: Without dead ends: 1562 [2022-11-22 02:48:50,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:48:50,134 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 88 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:48:50,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 205 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:48:50,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2022-11-22 02:48:50,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1166. [2022-11-22 02:48:50,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 854 states have (on average 1.3231850117096018) internal successors, (1130), 866 states have internal predecessors, (1130), 190 states have call successors, (190), 114 states have call predecessors, (190), 116 states have return successors, (249), 186 states have call predecessors, (249), 190 states have call successors, (249) [2022-11-22 02:48:50,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 1569 transitions. [2022-11-22 02:48:50,292 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 1569 transitions. Word has length 41 [2022-11-22 02:48:50,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:48:50,293 INFO L495 AbstractCegarLoop]: Abstraction has 1166 states and 1569 transitions. [2022-11-22 02:48:50,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-22 02:48:50,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 1569 transitions. [2022-11-22 02:48:50,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-22 02:48:50,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:48:50,296 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:48:50,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:48:50,296 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:48:50,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:48:50,297 INFO L85 PathProgramCache]: Analyzing trace with hash 278191040, now seen corresponding path program 1 times [2022-11-22 02:48:50,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:48:50,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710816200] [2022-11-22 02:48:50,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:48:50,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:48:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:48:50,580 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:48:50,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:48:50,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710816200] [2022-11-22 02:48:50,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710816200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:48:50,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:48:50,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:48:50,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119710015] [2022-11-22 02:48:50,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:48:50,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:48:50,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:48:50,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:48:50,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:48:50,589 INFO L87 Difference]: Start difference. First operand 1166 states and 1569 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 02:48:51,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:48:51,053 INFO L93 Difference]: Finished difference Result 2929 states and 3996 transitions. [2022-11-22 02:48:51,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:48:51,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 50 [2022-11-22 02:48:51,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:48:51,073 INFO L225 Difference]: With dead ends: 2929 [2022-11-22 02:48:51,073 INFO L226 Difference]: Without dead ends: 1769 [2022-11-22 02:48:51,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:48:51,080 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 266 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:48:51,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 322 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:48:51,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2022-11-22 02:48:51,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1540. [2022-11-22 02:48:51,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1129 states have (on average 1.3126660761736049) internal successors, (1482), 1143 states have internal predecessors, (1482), 251 states have call successors, (251), 152 states have call predecessors, (251), 154 states have return successors, (323), 245 states have call predecessors, (323), 251 states have call successors, (323) [2022-11-22 02:48:51,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2056 transitions. [2022-11-22 02:48:51,265 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2056 transitions. Word has length 50 [2022-11-22 02:48:51,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:48:51,266 INFO L495 AbstractCegarLoop]: Abstraction has 1540 states and 2056 transitions. [2022-11-22 02:48:51,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 02:48:51,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2056 transitions. [2022-11-22 02:48:51,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-22 02:48:51,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:48:51,268 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:48:51,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:48:51,268 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:48:51,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:48:51,269 INFO L85 PathProgramCache]: Analyzing trace with hash -28340267, now seen corresponding path program 1 times [2022-11-22 02:48:51,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:48:51,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933789808] [2022-11-22 02:48:51,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:48:51,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:48:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:48:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:48:51,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:48:51,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933789808] [2022-11-22 02:48:51,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933789808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:48:51,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:48:51,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:48:51,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857361460] [2022-11-22 02:48:51,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:48:51,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:48:51,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:48:51,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:48:51,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:48:51,327 INFO L87 Difference]: Start difference. First operand 1540 states and 2056 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 02:48:51,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:48:51,554 INFO L93 Difference]: Finished difference Result 3280 states and 4432 transitions. [2022-11-22 02:48:51,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:48:51,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2022-11-22 02:48:51,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:48:51,568 INFO L225 Difference]: With dead ends: 3280 [2022-11-22 02:48:51,568 INFO L226 Difference]: Without dead ends: 1915 [2022-11-22 02:48:51,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:48:51,576 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 56 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:48:51,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 269 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:48:51,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2022-11-22 02:48:51,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1645. [2022-11-22 02:48:51,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1216 states have (on average 1.3174342105263157) internal successors, (1602), 1230 states have internal predecessors, (1602), 260 states have call successors, (260), 161 states have call predecessors, (260), 163 states have return successors, (332), 254 states have call predecessors, (332), 260 states have call successors, (332) [2022-11-22 02:48:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2194 transitions. [2022-11-22 02:48:51,777 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2194 transitions. Word has length 51 [2022-11-22 02:48:51,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:48:51,778 INFO L495 AbstractCegarLoop]: Abstraction has 1645 states and 2194 transitions. [2022-11-22 02:48:51,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 02:48:51,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2194 transitions. [2022-11-22 02:48:51,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-22 02:48:51,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:48:51,781 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:48:51,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:48:51,782 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:48:51,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:48:51,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1646325373, now seen corresponding path program 1 times [2022-11-22 02:48:51,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:48:51,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685977679] [2022-11-22 02:48:51,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:48:51,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:48:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:48:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 02:48:51,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:48:51,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685977679] [2022-11-22 02:48:51,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685977679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:48:51,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:48:51,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:48:51,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748369874] [2022-11-22 02:48:51,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:48:51,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:48:51,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:48:51,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:48:51,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:48:51,996 INFO L87 Difference]: Start difference. First operand 1645 states and 2194 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 02:48:52,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:48:52,659 INFO L93 Difference]: Finished difference Result 4693 states and 6246 transitions. [2022-11-22 02:48:52,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:48:52,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 51 [2022-11-22 02:48:52,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:48:52,680 INFO L225 Difference]: With dead ends: 4693 [2022-11-22 02:48:52,680 INFO L226 Difference]: Without dead ends: 3054 [2022-11-22 02:48:52,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:48:52,688 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 286 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:48:52,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 333 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:48:52,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2022-11-22 02:48:53,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 2890. [2022-11-22 02:48:53,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2123 states have (on average 1.2925105982100802) internal successors, (2744), 2144 states have internal predecessors, (2744), 466 states have call successors, (466), 291 states have call predecessors, (466), 295 states have return successors, (598), 455 states have call predecessors, (598), 466 states have call successors, (598) [2022-11-22 02:48:53,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 3808 transitions. [2022-11-22 02:48:53,040 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 3808 transitions. Word has length 51 [2022-11-22 02:48:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:48:53,040 INFO L495 AbstractCegarLoop]: Abstraction has 2890 states and 3808 transitions. [2022-11-22 02:48:53,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-22 02:48:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 3808 transitions. [2022-11-22 02:48:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-22 02:48:53,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:48:53,042 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:48:53,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:48:53,043 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:48:53,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:48:53,043 INFO L85 PathProgramCache]: Analyzing trace with hash 289077579, now seen corresponding path program 1 times [2022-11-22 02:48:53,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:48:53,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854849771] [2022-11-22 02:48:53,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:48:53,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:48:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:48:53,109 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:48:53,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:48:53,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854849771] [2022-11-22 02:48:53,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854849771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:48:53,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:48:53,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:48:53,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159296493] [2022-11-22 02:48:53,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:48:53,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:48:53,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:48:53,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:48:53,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:48:53,117 INFO L87 Difference]: Start difference. First operand 2890 states and 3808 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 02:48:53,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:48:53,490 INFO L93 Difference]: Finished difference Result 5432 states and 7258 transitions. [2022-11-22 02:48:53,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:48:53,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 53 [2022-11-22 02:48:53,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:48:53,511 INFO L225 Difference]: With dead ends: 5432 [2022-11-22 02:48:53,511 INFO L226 Difference]: Without dead ends: 3475 [2022-11-22 02:48:53,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:48:53,518 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 62 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:48:53,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 273 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:48:53,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3475 states. [2022-11-22 02:48:53,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3475 to 3056. [2022-11-22 02:48:53,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3056 states, 2259 states have (on average 1.297476759628154) internal successors, (2931), 2280 states have internal predecessors, (2931), 481 states have call successors, (481), 306 states have call predecessors, (481), 310 states have return successors, (613), 470 states have call predecessors, (613), 481 states have call successors, (613) [2022-11-22 02:48:53,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3056 states to 3056 states and 4025 transitions. [2022-11-22 02:48:53,871 INFO L78 Accepts]: Start accepts. Automaton has 3056 states and 4025 transitions. Word has length 53 [2022-11-22 02:48:53,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:48:53,872 INFO L495 AbstractCegarLoop]: Abstraction has 3056 states and 4025 transitions. [2022-11-22 02:48:53,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 02:48:53,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3056 states and 4025 transitions. [2022-11-22 02:48:53,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-22 02:48:53,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:48:53,874 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:48:53,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:48:53,875 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:48:53,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:48:53,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1844339700, now seen corresponding path program 1 times [2022-11-22 02:48:53,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:48:53,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659066815] [2022-11-22 02:48:53,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:48:53,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:48:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:48:53,925 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 02:48:53,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:48:53,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659066815] [2022-11-22 02:48:53,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659066815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:48:53,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:48:53,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:48:53,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993029893] [2022-11-22 02:48:53,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:48:53,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:48:53,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:48:53,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:48:53,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:48:53,928 INFO L87 Difference]: Start difference. First operand 3056 states and 4025 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 02:48:54,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:48:54,342 INFO L93 Difference]: Finished difference Result 5481 states and 7301 transitions. [2022-11-22 02:48:54,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:48:54,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2022-11-22 02:48:54,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:48:54,361 INFO L225 Difference]: With dead ends: 5481 [2022-11-22 02:48:54,361 INFO L226 Difference]: Without dead ends: 3565 [2022-11-22 02:48:54,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:48:54,370 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 44 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:48:54,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 242 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:48:54,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3565 states. [2022-11-22 02:48:54,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3565 to 3324. [2022-11-22 02:48:54,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3324 states, 2481 states have (on average 1.3039097138250706) internal successors, (3235), 2502 states have internal predecessors, (3235), 504 states have call successors, (504), 329 states have call predecessors, (504), 333 states have return successors, (636), 493 states have call predecessors, (636), 504 states have call successors, (636) [2022-11-22 02:48:54,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 4375 transitions. [2022-11-22 02:48:54,745 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 4375 transitions. Word has length 66 [2022-11-22 02:48:54,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:48:54,746 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 4375 transitions. [2022-11-22 02:48:54,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 02:48:54,746 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 4375 transitions. [2022-11-22 02:48:54,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-22 02:48:54,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:48:54,748 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:48:54,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:48:54,749 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:48:54,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:48:54,749 INFO L85 PathProgramCache]: Analyzing trace with hash -112571788, now seen corresponding path program 1 times [2022-11-22 02:48:54,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:48:54,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135559350] [2022-11-22 02:48:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:48:54,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:48:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:48:54,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:48:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:48:54,859 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:48:54,859 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:48:54,860 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-22 02:48:54,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-22 02:48:54,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-22 02:48:54,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-22 02:48:54,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-22 02:48:54,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-22 02:48:54,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:48:54,867 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:48:54,871 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:48:54,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:48:54 BoogieIcfgContainer [2022-11-22 02:48:54,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:48:54,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:48:54,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:48:54,986 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:48:54,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:48:47" (3/4) ... [2022-11-22 02:48:54,988 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 02:48:55,106 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:48:55,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:48:55,110 INFO L158 Benchmark]: Toolchain (without parser) took 9490.82ms. Allocated memory was 195.0MB in the beginning and 427.8MB in the end (delta: 232.8MB). Free memory was 160.4MB in the beginning and 339.3MB in the end (delta: -178.9MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2022-11-22 02:48:55,111 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 195.0MB. Free memory was 160.1MB in the beginning and 160.1MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:48:55,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.39ms. Allocated memory is still 195.0MB. Free memory was 160.4MB in the beginning and 146.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 02:48:55,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.91ms. Allocated memory is still 195.0MB. Free memory was 146.0MB in the beginning and 143.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:48:55,112 INFO L158 Benchmark]: Boogie Preprocessor took 56.80ms. Allocated memory is still 195.0MB. Free memory was 143.9MB in the beginning and 142.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:48:55,112 INFO L158 Benchmark]: RCFGBuilder took 949.55ms. Allocated memory is still 195.0MB. Free memory was 142.3MB in the beginning and 102.0MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-22 02:48:55,113 INFO L158 Benchmark]: TraceAbstraction took 7941.39ms. Allocated memory was 195.0MB in the beginning and 427.8MB in the end (delta: 232.8MB). Free memory was 101.7MB in the beginning and 347.7MB in the end (delta: -246.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:48:55,114 INFO L158 Benchmark]: Witness Printer took 124.62ms. Allocated memory is still 427.8MB. Free memory was 347.7MB in the beginning and 339.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 02:48:55,116 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 195.0MB. Free memory was 160.1MB in the beginning and 160.1MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.39ms. Allocated memory is still 195.0MB. Free memory was 160.4MB in the beginning and 146.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.91ms. Allocated memory is still 195.0MB. Free memory was 146.0MB in the beginning and 143.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.80ms. Allocated memory is still 195.0MB. Free memory was 143.9MB in the beginning and 142.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 949.55ms. Allocated memory is still 195.0MB. Free memory was 142.3MB in the beginning and 102.0MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7941.39ms. Allocated memory was 195.0MB in the beginning and 427.8MB in the end (delta: 232.8MB). Free memory was 101.7MB in the beginning and 347.7MB in the end (delta: -246.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 124.62ms. Allocated memory is still 427.8MB. Free memory was 347.7MB in the beginning and 339.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 125]: integer overflow possible integer overflow possible We found a FailurePath: [L24] int m_pc = 0; [L25] int t1_pc = 0; [L26] int t2_pc = 0; [L27] int m_st ; [L28] int t1_st ; [L29] int t2_st ; [L30] int m_i ; [L31] int t1_i ; [L32] int t2_i ; [L33] int M_E = 2; [L34] int T1_E = 2; [L35] int T2_E = 2; [L36] int E_M = 2; [L37] int E_1 = 2; [L38] int E_2 = 2; [L43] int token ; [L45] int local ; [L610] int __retres1 ; [L614] CALL init_model() [L524] m_i = 1 [L525] t1_i = 1 [L526] t2_i = 1 [L614] RET init_model() [L615] CALL start_simulation() [L551] int kernel_st ; [L552] int tmp ; [L553] int tmp___0 ; [L557] kernel_st = 0 VAL [E_1=2, E_2=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L558] FCALL update_channels() VAL [E_1=2, E_2=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L559] CALL init_threads() [L243] COND TRUE m_i == 1 [L244] m_st = 0 [L248] COND TRUE t1_i == 1 [L249] t1_st = 0 [L253] COND TRUE t2_i == 1 [L254] t2_st = 0 [L559] RET init_threads() [L560] CALL fire_delta_events() VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L356] COND FALSE !(M_E == 0) [L361] COND FALSE !(T1_E == 0) [L366] COND FALSE !(T2_E == 0) [L371] COND FALSE !(E_M == 0) [L376] COND FALSE !(E_1 == 0) [L381] COND FALSE !(E_2 == 0) [L560] RET fire_delta_events() VAL [E_1=2, E_2=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L561] CALL activate_threads() VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L429] int tmp ; [L430] int tmp___0 ; [L431] int tmp___1 ; [L435] CALL, EXPR is_master_triggered() [L175] int __retres1 ; VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L178] COND FALSE !(m_pc == 1) VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L188] __retres1 = 0 VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, __retres1=0, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L190] return (__retres1); [L435] RET, EXPR is_master_triggered() [L435] tmp = is_master_triggered() [L437] COND FALSE !(\read(tmp)) [L443] CALL, EXPR is_transmit1_triggered() [L194] int __retres1 ; VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L197] COND FALSE !(t1_pc == 1) VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L207] __retres1 = 0 VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, __retres1=0, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L209] return (__retres1); [L443] RET, EXPR is_transmit1_triggered() [L443] tmp___0 = is_transmit1_triggered() [L445] COND FALSE !(\read(tmp___0)) [L451] CALL, EXPR is_transmit2_triggered() [L213] int __retres1 ; VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L216] COND FALSE !(t2_pc == 1) VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L226] __retres1 = 0 VAL [\old(m_st)=0, \old(t1_st)=0, \old(t2_st)=0, __retres1=0, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L228] return (__retres1); [L451] RET, EXPR is_transmit2_triggered() [L451] tmp___1 = is_transmit2_triggered() [L453] COND FALSE !(\read(tmp___1)) [L561] RET activate_threads() VAL [E_1=2, E_2=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L562] CALL reset_delta_events() VAL [\old(E_1)=2, \old(E_2)=2, \old(E_M)=2, \old(M_E)=2, \old(T1_E)=2, \old(T2_E)=2, E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L394] COND FALSE !(M_E == 1) [L399] COND FALSE !(T1_E == 1) [L404] COND FALSE !(T2_E == 1) [L409] COND FALSE !(E_M == 1) [L414] COND FALSE !(E_1 == 1) [L419] COND FALSE !(E_2 == 1) [L562] RET reset_delta_events() VAL [E_1=2, E_2=2, E_M=2, kernel_st=0, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L565] COND TRUE 1 [L568] kernel_st = 1 [L569] CALL eval() [L289] int tmp ; VAL [E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L293] COND TRUE 1 VAL [E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L296] CALL, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L263] int __retres1 ; [L266] COND TRUE m_st == 0 [L267] __retres1 = 1 [L284] return (__retres1); [L296] RET, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_M=2, exists_runnable_thread()=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L296] tmp = exists_runnable_thread() [L298] COND TRUE \read(tmp) VAL [E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, token=0] [L303] COND TRUE m_st == 0 [L304] int tmp_ndt_1; [L305] tmp_ndt_1 = __VERIFIER_nondet_int() [L306] COND FALSE !(\read(tmp_ndt_1)) VAL [E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0, token=0] [L317] COND TRUE t1_st == 0 [L318] int tmp_ndt_2; [L319] tmp_ndt_2 = __VERIFIER_nondet_int() [L320] COND TRUE \read(tmp_ndt_2) [L322] t1_st = 1 [L323] CALL transmit1() [L106] COND TRUE t1_pc == 0 VAL [E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L117] COND TRUE 1 [L119] t1_pc = 1 [L120] t1_st = 2 [L323] RET transmit1() [L331] COND TRUE t2_st == 0 [L332] int tmp_ndt_3; [L333] tmp_ndt_3 = __VERIFIER_nondet_int() [L334] COND FALSE !(\read(tmp_ndt_3)) VAL [E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1, tmp_ndt_3=0, token=0] [L293] COND TRUE 1 VAL [E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1, tmp_ndt_3=0, token=0] [L296] CALL, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=0] [L263] int __retres1 ; [L266] COND TRUE m_st == 0 [L267] __retres1 = 1 [L284] return (__retres1); [L296] RET, EXPR exists_runnable_thread() VAL [E_1=2, E_2=2, E_M=2, exists_runnable_thread()=1, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1, tmp_ndt_3=0, token=0] [L296] tmp = exists_runnable_thread() [L298] COND TRUE \read(tmp) VAL [E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1, tmp_ndt_3=0, token=0] [L303] COND TRUE m_st == 0 [L304] int tmp_ndt_1; [L305] tmp_ndt_1 = __VERIFIER_nondet_int() [L306] COND TRUE \read(tmp_ndt_1) [L308] m_st = 1 [L309] CALL master() [L48] int tmp_var = __VERIFIER_nondet_int(); [L50] COND TRUE m_pc == 0 VAL [E_1=2, E_2=2, E_M=2, local=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp_var=0, token=0] [L61] COND TRUE 1 [L64] token = __VERIFIER_nondet_int() [L65] local = token [L66] E_1 = 1 VAL [E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp_var=0, token=2147483647] [L67] CALL immediate_notify() VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L467] CALL activate_threads() VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L429] int tmp ; [L430] int tmp___0 ; [L431] int tmp___1 ; [L435] CALL, EXPR is_master_triggered() [L175] int __retres1 ; VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L178] COND FALSE !(m_pc == 1) VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L188] __retres1 = 0 VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, __retres1=0, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L190] return (__retres1); [L435] RET, EXPR is_master_triggered() [L435] tmp = is_master_triggered() [L437] COND FALSE !(\read(tmp)) [L443] CALL, EXPR is_transmit1_triggered() [L194] int __retres1 ; VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L197] COND TRUE t1_pc == 1 VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L198] COND TRUE E_1 == 1 [L199] __retres1 = 1 VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, __retres1=1, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L209] return (__retres1); [L443] RET, EXPR is_transmit1_triggered() [L443] tmp___0 = is_transmit1_triggered() [L445] COND TRUE \read(tmp___0) [L446] t1_st = 0 [L451] CALL, EXPR is_transmit2_triggered() [L213] int __retres1 ; VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L216] COND FALSE !(t2_pc == 1) VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L226] __retres1 = 0 VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, __retres1=0, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L228] return (__retres1); [L451] RET, EXPR is_transmit2_triggered() [L451] tmp___1 = is_transmit2_triggered() [L453] COND FALSE !(\read(tmp___1)) [L467] RET activate_threads() VAL [\old(m_st)=1, \old(t1_st)=2, \old(t2_st)=0, E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L67] RET immediate_notify() VAL [E_1=1, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp_var=0, token=2147483647] [L68] E_1 = 2 [L69] m_pc = 1 [L70] m_st = 2 VAL [E_1=2, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, tmp_var=0, token=2147483647] [L309] RET master() [L317] COND TRUE t1_st == 0 [L318] int tmp_ndt_2; [L319] tmp_ndt_2 = __VERIFIER_nondet_int() [L320] COND TRUE \read(tmp_ndt_2) [L322] t1_st = 1 [L323] CALL transmit1() [L106] COND FALSE !(t1_pc == 0) VAL [E_1=2, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L109] COND TRUE t1_pc == 1 VAL [E_1=2, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] [L125] token += 1 VAL [E_1=2, E_2=2, E_M=2, local=2147483647, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, T2_E=2, t2_i=1, t2_pc=0, t2_st=0, token=2147483647] - UnprovableResult [Line: 75]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 95 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1743 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1711 mSDsluCounter, 2816 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1485 mSDsCounter, 409 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1147 IncrementalHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 409 mSolverCounterUnsat, 1331 mSDtfsCounter, 1147 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3324occurred in iteration=9, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 1866 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 493 NumberOfCodeBlocks, 493 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 414 ConstructedInterpolants, 0 QuantifiedInterpolants, 720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 67/67 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 02:48:55,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2348e71e-09b4-4996-bacc-2a8de4610d69/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)