./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:03:27,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:03:27,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:03:27,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:03:27,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:03:27,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:03:27,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:03:27,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:03:27,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:03:27,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:03:27,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:03:27,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:03:27,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:03:27,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:03:27,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:03:27,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:03:27,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:03:27,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:03:27,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:03:27,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:03:27,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:03:27,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:03:27,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:03:27,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:03:27,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:03:27,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:03:27,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:03:27,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:03:27,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:03:27,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:03:27,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:03:27,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:03:27,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:03:27,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:03:27,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:03:27,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:03:27,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:03:27,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:03:27,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:03:27,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:03:27,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:03:27,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:03:28,010 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:03:28,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:03:28,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:03:28,013 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:03:28,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:03:28,014 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:03:28,014 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:03:28,015 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:03:28,015 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:03:28,015 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:03:28,017 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:03:28,017 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:03:28,017 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:03:28,018 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:03:28,018 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:03:28,018 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:03:28,018 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:03:28,019 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:03:28,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:03:28,020 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:03:28,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:03:28,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:03:28,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:03:28,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:03:28,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:03:28,022 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:03:28,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:03:28,023 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:03:28,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:03:28,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:03:28,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:03:28,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:28,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:03:28,025 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:03:28,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:03:28,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:03:28,026 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:03:28,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:03:28,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:03:28,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:03:28,027 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_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 [2022-11-26 00:03:28,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:03:28,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:03:28,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:03:28,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:03:28,423 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:03:28,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2022-11-26 00:03:31,740 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:03:32,014 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:03:32,014 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2022-11-26 00:03:32,020 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/data/4fc50709c/0ac676afe24b4f5b8c231215c23e2f65/FLAG340f1f4f2 [2022-11-26 00:03:32,034 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/data/4fc50709c/0ac676afe24b4f5b8c231215c23e2f65 [2022-11-26 00:03:32,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:03:32,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:03:32,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:32,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:03:32,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:03:32,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63230e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32, skipping insertion in model container [2022-11-26 00:03:32,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:03:32,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:03:32,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:32,213 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:03:32,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:32,233 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:03:32,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32 WrapperNode [2022-11-26 00:03:32,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:32,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:32,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:03:32,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:03:32,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,263 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-26 00:03:32,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:32,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:03:32,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:03:32,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:03:32,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,285 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:03:32,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:03:32,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:03:32,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:03:32,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (1/1) ... [2022-11-26 00:03:32,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:32,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:32,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:03:32,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:03:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:03:32,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:03:32,457 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:03:32,459 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:03:32,621 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:03:32,656 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:03:32,657 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:03:32,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:32 BoogieIcfgContainer [2022-11-26 00:03:32,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:03:32,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:03:32,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:03:32,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:03:32,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:32" (1/3) ... [2022-11-26 00:03:32,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189bbcd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:32, skipping insertion in model container [2022-11-26 00:03:32,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:32" (2/3) ... [2022-11-26 00:03:32,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189bbcd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:32, skipping insertion in model container [2022-11-26 00:03:32,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:32" (3/3) ... [2022-11-26 00:03:32,689 INFO L112 eAbstractionObserver]: Analyzing ICFG java_Sequence.c [2022-11-26 00:03:32,718 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:03:32,718 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-26 00:03:32,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:03:32,799 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;@644cd6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:03:32,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-26 00:03:32,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:32,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 00:03:32,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:32,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 00:03:32,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:32,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:32,824 INFO L85 PathProgramCache]: Analyzing trace with hash 77233, now seen corresponding path program 1 times [2022-11-26 00:03:32,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:32,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314331984] [2022-11-26 00:03:32,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:32,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:32,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:32,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:32,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314331984] [2022-11-26 00:03:32,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314331984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:32,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:32,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:03:32,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665339632] [2022-11-26 00:03:32,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:32,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:03:32,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:33,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:03:33,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:33,029 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:33,107 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-26 00:03:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:03:33,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-26 00:03:33,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:33,119 INFO L225 Difference]: With dead ends: 20 [2022-11-26 00:03:33,120 INFO L226 Difference]: Without dead ends: 17 [2022-11-26 00:03:33,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:33,127 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:33,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 10 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:33,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-26 00:03:33,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-26 00:03:33,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-11-26 00:03:33,157 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 3 [2022-11-26 00:03:33,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:33,157 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-11-26 00:03:33,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,158 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-11-26 00:03:33,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:03:33,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:33,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:03:33,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:03:33,167 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:33,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:33,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2394268, now seen corresponding path program 1 times [2022-11-26 00:03:33,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:33,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427715336] [2022-11-26 00:03:33,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:33,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:33,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:33,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:33,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427715336] [2022-11-26 00:03:33,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427715336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:33,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:33,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:03:33,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601967284] [2022-11-26 00:03:33,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:33,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:03:33,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:33,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:03:33,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:33,207 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:33,236 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-11-26 00:03:33,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:03:33,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-26 00:03:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:33,238 INFO L225 Difference]: With dead ends: 25 [2022-11-26 00:03:33,238 INFO L226 Difference]: Without dead ends: 23 [2022-11-26 00:03:33,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:33,240 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:33,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:33,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-26 00:03:33,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-26 00:03:33,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-26 00:03:33,246 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 4 [2022-11-26 00:03:33,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:33,247 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-26 00:03:33,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,247 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-26 00:03:33,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:03:33,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:33,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:03:33,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:03:33,249 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:33,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:33,249 INFO L85 PathProgramCache]: Analyzing trace with hash 74222355, now seen corresponding path program 1 times [2022-11-26 00:03:33,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:33,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921764475] [2022-11-26 00:03:33,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:33,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:33,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:33,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921764475] [2022-11-26 00:03:33,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921764475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:33,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:33,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:03:33,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916664614] [2022-11-26 00:03:33,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:33,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:03:33,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:33,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:03:33,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:33,288 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:33,304 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-11-26 00:03:33,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:03:33,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:03:33,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:33,306 INFO L225 Difference]: With dead ends: 23 [2022-11-26 00:03:33,306 INFO L226 Difference]: Without dead ends: 22 [2022-11-26 00:03:33,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:33,308 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:33,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:33,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-26 00:03:33,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-26 00:03:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.411764705882353) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-11-26 00:03:33,315 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 5 [2022-11-26 00:03:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:33,316 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-11-26 00:03:33,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,316 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-11-26 00:03:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:03:33,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:33,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:03:33,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:03:33,318 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:33,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:33,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1955624985, now seen corresponding path program 1 times [2022-11-26 00:03:33,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:33,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252190] [2022-11-26 00:03:33,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:33,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:33,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:33,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:33,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252190] [2022-11-26 00:03:33,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:33,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:33,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:03:33,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058011170] [2022-11-26 00:03:33,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:33,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:03:33,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:33,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:03:33,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:33,396 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:33,431 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-11-26 00:03:33,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:03:33,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-26 00:03:33,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:33,433 INFO L225 Difference]: With dead ends: 33 [2022-11-26 00:03:33,434 INFO L226 Difference]: Without dead ends: 21 [2022-11-26 00:03:33,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:33,436 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:33,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:33,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-26 00:03:33,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-26 00:03:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-11-26 00:03:33,450 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 6 [2022-11-26 00:03:33,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:33,451 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-11-26 00:03:33,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:33,451 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-11-26 00:03:33,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:03:33,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:33,452 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-26 00:03:33,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:03:33,453 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:33,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:33,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1773031667, now seen corresponding path program 1 times [2022-11-26 00:03:33,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:33,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774630370] [2022-11-26 00:03:33,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:33,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:33,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:33,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:33,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774630370] [2022-11-26 00:03:33,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774630370] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:03:33,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498662200] [2022-11-26 00:03:33,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:33,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:33,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:33,582 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:03:33,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:03:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:33,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:03:33,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:33,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:33,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:03:33,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:33,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498662200] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:03:33,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [195815426] [2022-11-26 00:03:33,738 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:03:33,738 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:03:33,743 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:03:33,749 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:03:33,750 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:03:33,994 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:03:34,131 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '301#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-26 00:03:34,132 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:03:34,132 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:03:34,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2022-11-26 00:03:34,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718873458] [2022-11-26 00:03:34,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:03:34,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:03:34,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:34,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:03:34,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:03:34,136 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:34,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:34,192 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2022-11-26 00:03:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:03:34,193 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:03:34,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:34,194 INFO L225 Difference]: With dead ends: 55 [2022-11-26 00:03:34,194 INFO L226 Difference]: Without dead ends: 53 [2022-11-26 00:03:34,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:03:34,196 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 32 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:34,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 42 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:34,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-26 00:03:34,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2022-11-26 00:03:34,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 46 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:34,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2022-11-26 00:03:34,206 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 9 [2022-11-26 00:03:34,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:34,206 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2022-11-26 00:03:34,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-11-26 00:03:34,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:03:34,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:34,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:34,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:03:34,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:34,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:34,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:34,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1257035288, now seen corresponding path program 1 times [2022-11-26 00:03:34,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:34,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063011169] [2022-11-26 00:03:34,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:34,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:34,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:34,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063011169] [2022-11-26 00:03:34,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063011169] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:03:34,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397502002] [2022-11-26 00:03:34,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:34,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:34,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:34,506 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:03:34,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:03:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:34,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:03:34,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:34,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:03:34,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:03:34,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397502002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:34,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:03:34,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-11-26 00:03:34,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530279107] [2022-11-26 00:03:34,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:34,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:03:34,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:34,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:03:34,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:34,586 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:34,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:34,605 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-11-26 00:03:34,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:03:34,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:03:34,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:34,608 INFO L225 Difference]: With dead ends: 47 [2022-11-26 00:03:34,608 INFO L226 Difference]: Without dead ends: 46 [2022-11-26 00:03:34,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:34,609 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:34,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 17 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:34,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-26 00:03:34,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-26 00:03:34,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 45 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:34,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2022-11-26 00:03:34,630 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 11 [2022-11-26 00:03:34,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:34,630 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2022-11-26 00:03:34,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:34,631 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2022-11-26 00:03:34,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:03:34,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:34,631 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1] [2022-11-26 00:03:34,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-26 00:03:34,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-26 00:03:34,837 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:34,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:34,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1218586031, now seen corresponding path program 1 times [2022-11-26 00:03:34,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:34,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958075944] [2022-11-26 00:03:34,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:34,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:34,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:03:34,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:34,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958075944] [2022-11-26 00:03:34,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958075944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:34,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:34,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:03:34,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012735037] [2022-11-26 00:03:34,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:34,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:03:34,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:34,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:03:34,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:34,908 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:34,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:34,920 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2022-11-26 00:03:34,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:03:34,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:03:34,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:34,922 INFO L225 Difference]: With dead ends: 46 [2022-11-26 00:03:34,922 INFO L226 Difference]: Without dead ends: 45 [2022-11-26 00:03:34,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:03:34,923 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:34,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 17 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:34,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-26 00:03:34,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-26 00:03:34,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:34,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-11-26 00:03:34,930 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 11 [2022-11-26 00:03:34,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:34,931 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-11-26 00:03:34,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:34,931 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-11-26 00:03:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:03:34,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:34,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:34,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:03:34,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:34,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:34,933 INFO L85 PathProgramCache]: Analyzing trace with hash 313388334, now seen corresponding path program 1 times [2022-11-26 00:03:34,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:34,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242370371] [2022-11-26 00:03:34,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:34,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:34,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:34,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:34,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242370371] [2022-11-26 00:03:34,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242370371] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:03:34,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622881346] [2022-11-26 00:03:34,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:34,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:34,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:34,971 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:03:34,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:03:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:35,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:03:35,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:03:35,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:03:35,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622881346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:35,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:03:35,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-11-26 00:03:35,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695165287] [2022-11-26 00:03:35,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:35,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:03:35,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:35,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:03:35,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:35,051 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:35,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:35,076 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2022-11-26 00:03:35,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:03:35,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-26 00:03:35,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:35,078 INFO L225 Difference]: With dead ends: 60 [2022-11-26 00:03:35,078 INFO L226 Difference]: Without dead ends: 59 [2022-11-26 00:03:35,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:35,079 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:35,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 20 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:35,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-26 00:03:35,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2022-11-26 00:03:35,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 57 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:35,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2022-11-26 00:03:35,096 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 12 [2022-11-26 00:03:35,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:35,097 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2022-11-26 00:03:35,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:35,098 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2022-11-26 00:03:35,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:03:35,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:35,099 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:35,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:03:35,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:35,305 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:35,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:35,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1342499028, now seen corresponding path program 1 times [2022-11-26 00:03:35,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:35,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049455866] [2022-11-26 00:03:35,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:35,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:35,377 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:03:35,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:35,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049455866] [2022-11-26 00:03:35,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049455866] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:03:35,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934172373] [2022-11-26 00:03:35,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:35,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:35,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:35,380 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:03:35,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:03:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:35,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:03:35,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:03:35,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:03:35,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934172373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:35,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:03:35,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-11-26 00:03:35,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049736276] [2022-11-26 00:03:35,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:35,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:03:35,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:35,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:03:35,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:35,452 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:35,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:35,479 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2022-11-26 00:03:35,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:03:35,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-26 00:03:35,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:35,482 INFO L225 Difference]: With dead ends: 58 [2022-11-26 00:03:35,482 INFO L226 Difference]: Without dead ends: 57 [2022-11-26 00:03:35,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:03:35,483 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:35,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 15 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:35,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-26 00:03:35,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 44. [2022-11-26 00:03:35,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 43 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:35,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-11-26 00:03:35,489 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2022-11-26 00:03:35,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:35,490 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-11-26 00:03:35,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:35,490 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-11-26 00:03:35,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-26 00:03:35,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:35,491 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1] [2022-11-26 00:03:35,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:03:35,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-26 00:03:35,691 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:35,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:35,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2100133340, now seen corresponding path program 2 times [2022-11-26 00:03:35,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:35,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115769203] [2022-11-26 00:03:35,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:35,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:35,859 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:35,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:35,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115769203] [2022-11-26 00:03:35,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115769203] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:03:35,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975047250] [2022-11-26 00:03:35,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:03:35,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:35,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:35,870 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:03:35,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:03:35,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-26 00:03:35,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:03:35,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:03:35,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:35,997 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:35,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:03:36,099 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:36,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975047250] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:03:36,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [334913715] [2022-11-26 00:03:36,103 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:03:36,104 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:03:36,104 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:03:36,104 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:03:36,104 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:03:36,209 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:03:36,422 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1189#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-26 00:03:36,423 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:03:36,423 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:03:36,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-26 00:03:36,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29929785] [2022-11-26 00:03:36,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:03:36,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:03:36,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:36,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:03:36,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:03:36,425 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:36,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:36,563 INFO L93 Difference]: Finished difference Result 106 states and 126 transitions. [2022-11-26 00:03:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:03:36,566 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-26 00:03:36,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:36,570 INFO L225 Difference]: With dead ends: 106 [2022-11-26 00:03:36,571 INFO L226 Difference]: Without dead ends: 104 [2022-11-26 00:03:36,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:03:36,572 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 86 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:36,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 68 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:03:36,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-26 00:03:36,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-11-26 00:03:36,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 102 states have (on average 1.1176470588235294) internal successors, (114), 103 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:36,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 114 transitions. [2022-11-26 00:03:36,601 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 114 transitions. Word has length 24 [2022-11-26 00:03:36,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:36,602 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 114 transitions. [2022-11-26 00:03:36,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:36,602 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 114 transitions. [2022-11-26 00:03:36,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-26 00:03:36,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:36,608 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1] [2022-11-26 00:03:36,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:03:36,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-26 00:03:36,814 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:36,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:36,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1499959740, now seen corresponding path program 3 times [2022-11-26 00:03:36,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:36,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048120680] [2022-11-26 00:03:36,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:36,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:37,062 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:37,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:37,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048120680] [2022-11-26 00:03:37,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048120680] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:03:37,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381714100] [2022-11-26 00:03:37,063 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:03:37,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:37,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:37,064 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:03:37,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:03:37,134 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:03:37,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:03:37,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-26 00:03:37,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:37,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:03:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:37,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381714100] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:03:37,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1140683698] [2022-11-26 00:03:37,645 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:03:37,646 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:03:37,646 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:03:37,646 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:03:37,646 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:03:37,710 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:03:38,081 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1787#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-26 00:03:38,081 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:03:38,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:03:38,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-11-26 00:03:38,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793202241] [2022-11-26 00:03:38,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:03:38,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-26 00:03:38,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-26 00:03:38,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=468, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:03:38,084 INFO L87 Difference]: Start difference. First operand 104 states and 114 transitions. Second operand has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 23 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:38,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:38,382 INFO L93 Difference]: Finished difference Result 226 states and 270 transitions. [2022-11-26 00:03:38,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-26 00:03:38,383 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 23 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-11-26 00:03:38,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:38,385 INFO L225 Difference]: With dead ends: 226 [2022-11-26 00:03:38,385 INFO L226 Difference]: Without dead ends: 224 [2022-11-26 00:03:38,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 134 SyntacticMatches, 11 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=288, Invalid=468, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:03:38,386 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 327 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:38,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 138 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:03:38,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-11-26 00:03:38,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-11-26 00:03:38,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 222 states have (on average 1.1081081081081081) internal successors, (246), 223 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:38,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 246 transitions. [2022-11-26 00:03:38,409 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 246 transitions. Word has length 54 [2022-11-26 00:03:38,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:38,409 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 246 transitions. [2022-11-26 00:03:38,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.695652173913044) internal successors, (108), 23 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:38,420 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 246 transitions. [2022-11-26 00:03:38,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-26 00:03:38,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:38,427 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1] [2022-11-26 00:03:38,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:03:38,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:38,628 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:38,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:38,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1102946684, now seen corresponding path program 4 times [2022-11-26 00:03:38,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:38,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330372493] [2022-11-26 00:03:38,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:38,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:39,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:39,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:39,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330372493] [2022-11-26 00:03:39,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330372493] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:03:39,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035302974] [2022-11-26 00:03:39,477 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:03:39,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:39,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:39,480 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:03:39,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:03:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:39,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-26 00:03:39,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:39,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:39,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:03:40,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:40,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035302974] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:03:40,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [878761559] [2022-11-26 00:03:40,866 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:03:40,866 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:03:40,866 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:03:40,866 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:03:40,867 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:03:40,918 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:03:41,788 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3057#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-26 00:03:41,788 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:03:41,789 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:03:41,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2022-11-26 00:03:41,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375423168] [2022-11-26 00:03:41,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:03:41,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-26 00:03:41,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:41,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-26 00:03:41,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1140, Invalid=1512, Unknown=0, NotChecked=0, Total=2652 [2022-11-26 00:03:41,793 INFO L87 Difference]: Start difference. First operand 224 states and 246 transitions. Second operand has 48 states, 47 states have (on average 4.851063829787234) internal successors, (228), 47 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:42,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:42,516 INFO L93 Difference]: Finished difference Result 466 states and 558 transitions. [2022-11-26 00:03:42,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-26 00:03:42,517 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.851063829787234) internal successors, (228), 47 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-26 00:03:42,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:42,519 INFO L225 Difference]: With dead ends: 466 [2022-11-26 00:03:42,519 INFO L226 Difference]: Without dead ends: 464 [2022-11-26 00:03:42,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 290 SyntacticMatches, 23 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1810 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1140, Invalid=1512, Unknown=0, NotChecked=0, Total=2652 [2022-11-26 00:03:42,523 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 638 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:42,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 282 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:03:42,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-11-26 00:03:42,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2022-11-26 00:03:42,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 462 states have (on average 1.103896103896104) internal successors, (510), 463 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:42,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 510 transitions. [2022-11-26 00:03:42,558 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 510 transitions. Word has length 114 [2022-11-26 00:03:42,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:42,559 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 510 transitions. [2022-11-26 00:03:42,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.851063829787234) internal successors, (228), 47 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:42,560 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 510 transitions. [2022-11-26 00:03:42,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-26 00:03:42,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:42,570 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1] [2022-11-26 00:03:42,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:03:42,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:42,774 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:42,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:42,775 INFO L85 PathProgramCache]: Analyzing trace with hash 624517372, now seen corresponding path program 5 times [2022-11-26 00:03:42,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:42,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514659192] [2022-11-26 00:03:42,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:42,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:45,245 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:45,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:03:45,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514659192] [2022-11-26 00:03:45,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514659192] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:03:45,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529506086] [2022-11-26 00:03:45,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:03:45,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:03:45,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:45,250 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:03:45,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-26 00:03:45,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2022-11-26 00:03:45,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:03:45,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-26 00:03:45,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:45,843 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:45,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:03:49,346 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:49,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529506086] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:03:49,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [282452965] [2022-11-26 00:03:49,348 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:03:49,348 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:03:49,349 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:03:49,349 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:03:49,349 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:03:49,423 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:03:51,950 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5671#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-26 00:03:51,950 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:03:51,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:03:51,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2022-11-26 00:03:51,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543784984] [2022-11-26 00:03:51,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:03:51,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-26 00:03:51,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:03:51,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-26 00:03:51,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4572, Invalid=5328, Unknown=0, NotChecked=0, Total=9900 [2022-11-26 00:03:51,959 INFO L87 Difference]: Start difference. First operand 464 states and 510 transitions. Second operand has 96 states, 95 states have (on average 4.926315789473684) internal successors, (468), 95 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:55,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:55,189 INFO L93 Difference]: Finished difference Result 946 states and 1134 transitions. [2022-11-26 00:03:55,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-26 00:03:55,190 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.926315789473684) internal successors, (468), 95 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2022-11-26 00:03:55,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:55,202 INFO L225 Difference]: With dead ends: 946 [2022-11-26 00:03:55,202 INFO L226 Difference]: Without dead ends: 944 [2022-11-26 00:03:55,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 602 SyntacticMatches, 47 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7090 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=4572, Invalid=5328, Unknown=0, NotChecked=0, Total=9900 [2022-11-26 00:03:55,206 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2139 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:55,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 570 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:03:55,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2022-11-26 00:03:55,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 944. [2022-11-26 00:03:55,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 942 states have (on average 1.1019108280254777) internal successors, (1038), 943 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:55,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1038 transitions. [2022-11-26 00:03:55,241 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1038 transitions. Word has length 234 [2022-11-26 00:03:55,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:55,242 INFO L495 AbstractCegarLoop]: Abstraction has 944 states and 1038 transitions. [2022-11-26 00:03:55,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.926315789473684) internal successors, (468), 95 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1038 transitions. [2022-11-26 00:03:55,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-11-26 00:03:55,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:55,252 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1] [2022-11-26 00:03:55,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-26 00:03:55,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-26 00:03:55,459 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:03:55,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash 766468092, now seen corresponding path program 6 times [2022-11-26 00:03:55,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:55,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166557696] [2022-11-26 00:03:55,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:55,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:04,929 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:04,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:04,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166557696] [2022-11-26 00:04:04,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166557696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:04:04,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040111789] [2022-11-26 00:04:04,930 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:04:04,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:04:04,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:04:04,931 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:04:04,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-26 00:04:05,124 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:04:05,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:04:05,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-26 00:04:05,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:04:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:06,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:04:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:19,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040111789] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:04:19,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1686818929] [2022-11-26 00:04:19,234 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:04:19,234 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:04:19,235 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:04:19,235 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:04:19,235 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:04:19,286 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:04:27,570 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10973#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 100) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-26 00:04:27,570 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:04:27,570 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:04:27,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2022-11-26 00:04:27,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649834516] [2022-11-26 00:04:27,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:04:27,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-26 00:04:27,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:27,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-26 00:04:27,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18348, Invalid=19872, Unknown=0, NotChecked=0, Total=38220 [2022-11-26 00:04:27,594 INFO L87 Difference]: Start difference. First operand 944 states and 1038 transitions. Second operand has 192 states, 191 states have (on average 4.963350785340314) internal successors, (948), 191 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:55,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:55,284 INFO L93 Difference]: Finished difference Result 1906 states and 2286 transitions. [2022-11-26 00:04:55,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-26 00:04:55,285 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.963350785340314) internal successors, (948), 191 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 474 [2022-11-26 00:04:55,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:55,292 INFO L225 Difference]: With dead ends: 1906 [2022-11-26 00:04:55,292 INFO L226 Difference]: Without dead ends: 1904 [2022-11-26 00:04:55,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1515 GetRequests, 1226 SyntacticMatches, 95 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28018 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=18348, Invalid=19872, Unknown=0, NotChecked=0, Total=38220 [2022-11-26 00:04:55,298 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3735 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3735 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:55,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3735 Valid, 1146 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:04:55,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2022-11-26 00:04:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1904. [2022-11-26 00:04:55,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1902 states have (on average 1.1009463722397477) internal successors, (2094), 1903 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:55,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2094 transitions. [2022-11-26 00:04:55,359 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2094 transitions. Word has length 474 [2022-11-26 00:04:55,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:55,360 INFO L495 AbstractCegarLoop]: Abstraction has 1904 states and 2094 transitions. [2022-11-26 00:04:55,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.963350785340314) internal successors, (948), 191 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2094 transitions. [2022-11-26 00:04:55,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2022-11-26 00:04:55,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:55,399 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 1, 1] [2022-11-26 00:04:55,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-26 00:04:55,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:04:55,606 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:04:55,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:55,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1231725060, now seen corresponding path program 7 times [2022-11-26 00:04:55,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:55,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762947471] [2022-11-26 00:04:55,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:55,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:05:28,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:28,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762947471] [2022-11-26 00:05:28,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762947471] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:05:28,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890349093] [2022-11-26 00:05:28,899 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:05:28,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:28,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:05:28,902 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:05:28,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-26 00:05:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:29,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 102 conjunts are in the unsatisfiable core [2022-11-26 00:05:29,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:05:43,272 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 70140 proven. 0 refuted. 0 times theorem prover too weak. 20205 trivial. 0 not checked. [2022-11-26 00:05:43,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:05:43,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890349093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:05:43,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:05:43,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [191] total 293 [2022-11-26 00:05:43,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192185145] [2022-11-26 00:05:43,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:05:43,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-11-26 00:05:43,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:43,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-11-26 00:05:43,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23780, Invalid=62362, Unknown=0, NotChecked=0, Total=86142 [2022-11-26 00:05:43,288 INFO L87 Difference]: Start difference. First operand 1904 states and 2094 transitions. Second operand has 103 states, 103 states have (on average 4.932038834951456) internal successors, (508), 102 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:45,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:45,103 INFO L93 Difference]: Finished difference Result 2353 states and 2543 transitions. [2022-11-26 00:05:45,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-11-26 00:05:45,104 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 4.932038834951456) internal successors, (508), 102 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 954 [2022-11-26 00:05:45,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:45,110 INFO L225 Difference]: With dead ends: 2353 [2022-11-26 00:05:45,110 INFO L226 Difference]: Without dead ends: 1451 [2022-11-26 00:05:45,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1144 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 292 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19190 ImplicationChecksByTransitivity, 27.9s TimeCoverageRelationStatistics Valid=23780, Invalid=62362, Unknown=0, NotChecked=0, Total=86142 [2022-11-26 00:05:45,121 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 54 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:45,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 964 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:05:45,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-11-26 00:05:45,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1451. [2022-11-26 00:05:45,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1450 states have (on average 1.0689655172413792) internal successors, (1550), 1450 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:45,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1550 transitions. [2022-11-26 00:05:45,170 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1550 transitions. Word has length 954 [2022-11-26 00:05:45,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:45,171 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 1550 transitions. [2022-11-26 00:05:45,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 4.932038834951456) internal successors, (508), 102 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:45,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1550 transitions. [2022-11-26 00:05:45,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2022-11-26 00:05:45,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:45,181 INFO L195 NwaCegarLoop]: trace histogram [190, 190, 189, 189, 189, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:05:45,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-26 00:05:45,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-26 00:05:45,388 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:05:45,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash -249899950, now seen corresponding path program 1 times [2022-11-26 00:05:45,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:45,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575213069] [2022-11-26 00:05:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:45,789 INFO L134 CoverageAnalysis]: Checked inductivity of 89398 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 89397 trivial. 0 not checked. [2022-11-26 00:05:45,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:45,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575213069] [2022-11-26 00:05:45,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575213069] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:05:45,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039818989] [2022-11-26 00:05:45,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:45,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:45,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:05:45,792 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:05:45,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-26 00:05:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:46,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:05:46,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:05:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 89398 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 89397 trivial. 0 not checked. [2022-11-26 00:05:46,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:05:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 89398 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 89397 trivial. 0 not checked. [2022-11-26 00:05:46,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039818989] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:05:46,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [426613346] [2022-11-26 00:05:46,217 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-26 00:05:46,217 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:05:46,218 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:05:46,218 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:05:46,218 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:05:46,334 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:05:46,501 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28998#(and (< |ULTIMATE.start_main_~j~0#1| 21) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 5 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-26 00:05:46,501 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:05:46,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:05:46,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-26 00:05:46,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250237052] [2022-11-26 00:05:46,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:05:46,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:05:46,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:46,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:05:46,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:05:46,505 INFO L87 Difference]: Start difference. First operand 1451 states and 1550 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:46,556 INFO L93 Difference]: Finished difference Result 2385 states and 2484 transitions. [2022-11-26 00:05:46,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:05:46,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 955 [2022-11-26 00:05:46,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:46,561 INFO L225 Difference]: With dead ends: 2385 [2022-11-26 00:05:46,561 INFO L226 Difference]: Without dead ends: 1436 [2022-11-26 00:05:46,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2866 GetRequests, 2854 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:05:46,563 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:46,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 32 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:05:46,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-11-26 00:05:46,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1436. [2022-11-26 00:05:46,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 1.067595818815331) internal successors, (1532), 1435 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:46,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1532 transitions. [2022-11-26 00:05:46,614 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1532 transitions. Word has length 955 [2022-11-26 00:05:46,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:46,614 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1532 transitions. [2022-11-26 00:05:46,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1532 transitions. [2022-11-26 00:05:46,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2022-11-26 00:05:46,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:46,624 INFO L195 NwaCegarLoop]: trace histogram [187, 187, 186, 186, 186, 4, 4, 4, 4, 4, 1, 1, 1] [2022-11-26 00:05:46,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-26 00:05:46,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-26 00:05:46,831 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:05:46,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:46,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1156687677, now seen corresponding path program 2 times [2022-11-26 00:05:46,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:46,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597626126] [2022-11-26 00:05:46,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:46,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:47,488 INFO L134 CoverageAnalysis]: Checked inductivity of 86617 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 86583 trivial. 0 not checked. [2022-11-26 00:05:47,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:47,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597626126] [2022-11-26 00:05:47,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597626126] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:05:47,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509259354] [2022-11-26 00:05:47,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:05:47,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:47,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:05:47,494 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:05:47,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-26 00:05:47,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-26 00:05:47,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:05:47,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:05:47,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:05:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 86617 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 86583 trivial. 0 not checked. [2022-11-26 00:05:47,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:05:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 86617 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 86583 trivial. 0 not checked. [2022-11-26 00:05:47,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509259354] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:05:47,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [513035269] [2022-11-26 00:05:47,750 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-26 00:05:47,751 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:05:47,751 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:05:47,751 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:05:47,751 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:05:47,817 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:05:48,030 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '39328#(and (< |ULTIMATE.start_main_~j~0#1| 21) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 5 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-26 00:05:48,030 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:05:48,030 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:05:48,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-26 00:05:48,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755010867] [2022-11-26 00:05:48,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:05:48,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:05:48,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:48,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:05:48,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:05:48,034 INFO L87 Difference]: Start difference. First operand 1436 states and 1532 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:48,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:48,099 INFO L93 Difference]: Finished difference Result 2340 states and 2436 transitions. [2022-11-26 00:05:48,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:05:48,099 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 955 [2022-11-26 00:05:48,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:48,104 INFO L225 Difference]: With dead ends: 2340 [2022-11-26 00:05:48,104 INFO L226 Difference]: Without dead ends: 1406 [2022-11-26 00:05:48,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2869 GetRequests, 2848 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:05:48,106 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 50 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 [2022-11-26 00:05:48,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 50 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:05:48,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2022-11-26 00:05:48,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1406. [2022-11-26 00:05:48,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1405 states have (on average 1.0647686832740213) internal successors, (1496), 1405 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:48,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1496 transitions. [2022-11-26 00:05:48,154 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1496 transitions. Word has length 955 [2022-11-26 00:05:48,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:48,155 INFO L495 AbstractCegarLoop]: Abstraction has 1406 states and 1496 transitions. [2022-11-26 00:05:48,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:48,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1496 transitions. [2022-11-26 00:05:48,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2022-11-26 00:05:48,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:48,165 INFO L195 NwaCegarLoop]: trace histogram [181, 181, 180, 180, 180, 10, 10, 10, 10, 10, 1, 1, 1] [2022-11-26 00:05:48,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-26 00:05:48,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-26 00:05:48,370 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:05:48,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:48,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1578374179, now seen corresponding path program 3 times [2022-11-26 00:05:48,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:48,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001018158] [2022-11-26 00:05:48,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:48,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 81325 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 81090 trivial. 0 not checked. [2022-11-26 00:05:49,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:49,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001018158] [2022-11-26 00:05:49,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001018158] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:05:49,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617311240] [2022-11-26 00:05:49,378 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:05:49,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:49,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:05:49,382 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:05:49,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-26 00:05:49,670 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:05:49,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:05:49,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-26 00:05:49,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:05:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 81325 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 81090 trivial. 0 not checked. [2022-11-26 00:05:49,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:05:50,095 INFO L134 CoverageAnalysis]: Checked inductivity of 81325 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 81090 trivial. 0 not checked. [2022-11-26 00:05:50,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617311240] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:05:50,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1567338770] [2022-11-26 00:05:50,098 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-26 00:05:50,098 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:05:50,099 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:05:50,099 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:05:50,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:05:50,174 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:05:50,512 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '49580#(and (< |ULTIMATE.start_main_~j~0#1| 21) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 5 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-26 00:05:50,512 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:05:50,512 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:05:50,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-26 00:05:50,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008016558] [2022-11-26 00:05:50,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:05:50,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-26 00:05:50,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:50,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-26 00:05:50,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=625, Unknown=0, NotChecked=0, Total=930 [2022-11-26 00:05:50,516 INFO L87 Difference]: Start difference. First operand 1406 states and 1496 transitions. Second operand has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:50,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:50,626 INFO L93 Difference]: Finished difference Result 2250 states and 2340 transitions. [2022-11-26 00:05:50,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-26 00:05:50,627 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 955 [2022-11-26 00:05:50,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:50,632 INFO L225 Difference]: With dead ends: 2250 [2022-11-26 00:05:50,632 INFO L226 Difference]: Without dead ends: 1346 [2022-11-26 00:05:50,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2875 GetRequests, 2836 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=305, Invalid=625, Unknown=0, NotChecked=0, Total=930 [2022-11-26 00:05:50,634 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:50,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 80 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:05:50,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-11-26 00:05:50,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1346. [2022-11-26 00:05:50,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1345 states have (on average 1.0587360594795538) internal successors, (1424), 1345 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:50,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1424 transitions. [2022-11-26 00:05:50,681 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1424 transitions. Word has length 955 [2022-11-26 00:05:50,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:50,682 INFO L495 AbstractCegarLoop]: Abstraction has 1346 states and 1424 transitions. [2022-11-26 00:05:50,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 23 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:50,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1424 transitions. [2022-11-26 00:05:50,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2022-11-26 00:05:50,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:50,691 INFO L195 NwaCegarLoop]: trace histogram [169, 169, 168, 168, 168, 22, 22, 22, 22, 22, 1, 1, 1] [2022-11-26 00:05:50,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-26 00:05:50,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:50,899 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:05:50,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:50,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1694630627, now seen corresponding path program 4 times [2022-11-26 00:05:50,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:50,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573785147] [2022-11-26 00:05:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:50,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 71821 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 70644 trivial. 0 not checked. [2022-11-26 00:05:52,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:05:52,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573785147] [2022-11-26 00:05:52,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573785147] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:05:52,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826448688] [2022-11-26 00:05:52,366 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:05:52,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:52,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:05:52,367 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:05:52,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-26 00:05:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:05:52,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-26 00:05:52,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:05:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 71821 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 70644 trivial. 0 not checked. [2022-11-26 00:05:52,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:05:53,789 INFO L134 CoverageAnalysis]: Checked inductivity of 71821 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 70644 trivial. 0 not checked. [2022-11-26 00:05:53,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826448688] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:05:53,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1332845806] [2022-11-26 00:05:53,791 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-26 00:05:53,792 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:05:53,792 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:05:53,792 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:05:53,792 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:05:53,857 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:05:54,740 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '59676#(and (< |ULTIMATE.start_main_~j~0#1| 21) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 5 |ULTIMATE.start_main_~j~0#1|) (<= 100 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-11-26 00:05:54,740 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:05:54,740 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:05:54,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-11-26 00:05:54,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733639906] [2022-11-26 00:05:54,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:05:54,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-26 00:05:54,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:05:54,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-26 00:05:54,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1157, Invalid=1813, Unknown=0, NotChecked=0, Total=2970 [2022-11-26 00:05:54,745 INFO L87 Difference]: Start difference. First operand 1346 states and 1424 transitions. Second operand has 48 states, 48 states have (on average 4.791666666666667) internal successors, (230), 47 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:55,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:05:55,011 INFO L93 Difference]: Finished difference Result 2070 states and 2148 transitions. [2022-11-26 00:05:55,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-26 00:05:55,012 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 4.791666666666667) internal successors, (230), 47 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 955 [2022-11-26 00:05:55,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:05:55,016 INFO L225 Difference]: With dead ends: 2070 [2022-11-26 00:05:55,016 INFO L226 Difference]: Without dead ends: 1226 [2022-11-26 00:05:55,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2887 GetRequests, 2812 SyntacticMatches, 22 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1972 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1157, Invalid=1813, Unknown=0, NotChecked=0, Total=2970 [2022-11-26 00:05:55,019 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:05:55,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 128 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:05:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-11-26 00:05:55,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1226. [2022-11-26 00:05:55,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 1.0448979591836736) internal successors, (1280), 1225 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:55,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1280 transitions. [2022-11-26 00:05:55,065 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1280 transitions. Word has length 955 [2022-11-26 00:05:55,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:05:55,066 INFO L495 AbstractCegarLoop]: Abstraction has 1226 states and 1280 transitions. [2022-11-26 00:05:55,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.791666666666667) internal successors, (230), 47 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:05:55,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1280 transitions. [2022-11-26 00:05:55,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2022-11-26 00:05:55,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:55,077 INFO L195 NwaCegarLoop]: trace histogram [145, 145, 144, 144, 144, 46, 46, 46, 46, 46, 1, 1, 1] [2022-11-26 00:05:55,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-26 00:05:55,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:05:55,291 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:05:55,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:55,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1412448157, now seen corresponding path program 5 times [2022-11-26 00:05:55,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:55,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881578785] [2022-11-26 00:05:55,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:55,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:06:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 57133 backedges. 0 proven. 5221 refuted. 0 times theorem prover too weak. 51912 trivial. 0 not checked. [2022-11-26 00:06:00,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:06:00,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881578785] [2022-11-26 00:06:00,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881578785] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:06:00,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311190011] [2022-11-26 00:06:00,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:06:00,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:06:00,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:06:00,207 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:06:00,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-26 00:06:00,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2022-11-26 00:06:00,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:06:00,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-26 00:06:00,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:06:00,712 INFO L134 CoverageAnalysis]: Checked inductivity of 57133 backedges. 4371 proven. 0 refuted. 0 times theorem prover too weak. 52762 trivial. 0 not checked. [2022-11-26 00:06:00,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:06:00,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311190011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:06:00,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:06:00,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [48] total 56 [2022-11-26 00:06:00,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538287933] [2022-11-26 00:06:00,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:06:00,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:06:00,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:06:00,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:06:00,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1211, Invalid=1869, Unknown=0, NotChecked=0, Total=3080 [2022-11-26 00:06:00,716 INFO L87 Difference]: Start difference. First operand 1226 states and 1280 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:06:00,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:06:00,835 INFO L93 Difference]: Finished difference Result 2900 states and 2954 transitions. [2022-11-26 00:06:00,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:06:00,836 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 955 [2022-11-26 00:06:00,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:06:00,837 INFO L225 Difference]: With dead ends: 2900 [2022-11-26 00:06:00,837 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:06:00,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1002 GetRequests, 948 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1211, Invalid=1869, Unknown=0, NotChecked=0, Total=3080 [2022-11-26 00:06:00,842 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:06:00,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:06:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:06:00,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:06:00,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:06:00,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:06:00,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 955 [2022-11-26 00:06:00,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:06:00,852 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:06:00,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:06:00,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:06:00,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:06:00,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-26 00:06:00,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-26 00:06:00,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-26 00:06:00,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-26 00:06:00,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-26 00:06:00,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-26 00:06:00,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-26 00:06:00,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-26 00:06:00,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-26 00:06:01,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:06:01,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:06:09,270 WARN L233 SmtUtils]: Spent 7.80s on a formula simplification. DAG size of input: 629 DAG size of output: 534 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-26 00:06:18,369 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 534 DAG size of output: 45 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-26 00:06:18,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-26 00:06:18,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:06:18,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-11-26 00:06:18,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-26 00:06:18,374 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-26 00:06:18,374 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-11-26 00:06:18,375 INFO L895 garLoopResultBuilder]: At program point L15-2(lines 15 18) the Hoare annotation is: (let ((.cse0 (<= 5 |ULTIMATE.start_main_~j~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~c~0#1|)) (.cse2 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse3 (<= 100 |ULTIMATE.start_main_~i~0#1|))) (or (and (<= 23 |ULTIMATE.start_main_~j~0#1|) .cse0 .cse1 .cse2 .cse3 (< |ULTIMATE.start_main_~c~0#1| 2147483564)) (and (< |ULTIMATE.start_main_~c~0#1| 2147483558) .cse0 .cse1 .cse2 .cse3) (and (< |ULTIMATE.start_main_~c~0#1| 2147483560) .cse0 .cse1 .cse2 .cse3 (<= 11 |ULTIMATE.start_main_~j~0#1|)) (and (<= 17 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~c~0#1| 2147483562) .cse0 .cse1 .cse2 .cse3) (and (<= 14 |ULTIMATE.start_main_~j~0#1|) .cse0 (< |ULTIMATE.start_main_~c~0#1| 2147483561) .cse1 .cse2 .cse3) (and (<= 20 |ULTIMATE.start_main_~j~0#1|) .cse0 .cse1 .cse2 .cse3 (< |ULTIMATE.start_main_~c~0#1| 2147483563)) (and (<= 8 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~c~0#1| 2147483559) .cse0 .cse1 .cse2 .cse3))) [2022-11-26 00:06:18,375 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-11-26 00:06:18,375 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-11-26 00:06:18,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-26 00:06:18,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-26 00:06:18,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2022-11-26 00:06:18,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:06:18,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-26 00:06:18,376 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-11-26 00:06:18,376 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2022-11-26 00:06:18,377 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-11-26 00:06:18,377 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2022-11-26 00:06:18,377 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-26 00:06:18,379 INFO L895 garLoopResultBuilder]: At program point L10-2(lines 10 13) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~c~0#1|))) (or (and (<= 12 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 12)) (and (<= |ULTIMATE.start_main_~c~0#1| 76) (<= 76 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 89) (<= 89 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 57 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 57)) (and (<= |ULTIMATE.start_main_~c~0#1| 56) .cse0 (<= 56 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 25) .cse0 (<= 25 |ULTIMATE.start_main_~i~0#1|)) (and (<= 88 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 88)) (and .cse0 (<= 41 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 41)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 73) (<= 73 |ULTIMATE.start_main_~i~0#1|)) (and (<= 91 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 91)) (and (< |ULTIMATE.start_main_~c~0#1| 2147483557) .cse0 (<= 99 |ULTIMATE.start_main_~i~0#1|)) (and (<= 83 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 83)) (and .cse0 (<= 34 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 34)) (and (<= |ULTIMATE.start_main_~c~0#1| 43) (<= 43 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 61) .cse0 (<= 61 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 20) (<= 20 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 38) .cse0 (<= 38 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 42) (<= 42 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 90 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 90)) (and (<= 47 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 47) .cse0) (and (<= 72 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 72) .cse0) (and (<= 49 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 49)) (and (<= 35 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 35) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 45) .cse0 (<= 45 |ULTIMATE.start_main_~i~0#1|)) (and (<= 98 |ULTIMATE.start_main_~i~0#1|) .cse0 (< |ULTIMATE.start_main_~c~0#1| 2147483556)) (and (<= |ULTIMATE.start_main_~c~0#1| 87) (<= 87 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= 26 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 26)) (and (<= 44 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 44)) (and .cse0 (<= 94 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 94)) (and (<= 79 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 79) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 50) .cse0 (<= 50 |ULTIMATE.start_main_~i~0#1|)) (and (<= 52 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 52) .cse0) (and (<= 58 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 58)) (and (<= |ULTIMATE.start_main_~c~0#1| 66) (<= 66 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 24) .cse0 (<= 24 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 6) (<= 6 |ULTIMATE.start_main_~i~0#1|)) (and (<= 97 |ULTIMATE.start_main_~i~0#1|) .cse0 (< |ULTIMATE.start_main_~c~0#1| 2147483555)) (and (<= 84 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 84)) (and (<= 36 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 36) .cse0) (and .cse0 (<= 78 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 78)) (and (<= |ULTIMATE.start_main_~c~0#1| 4) .cse0 (<= 4 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 92) (<= 92 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 28 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 28) .cse0) (and (<= 17 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 17)) (and (<= 7 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 7)) (and (<= |ULTIMATE.start_main_~c~0#1| 62) .cse0 (<= 62 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 16) (<= 16 |ULTIMATE.start_main_~i~0#1|)) (and (<= 23 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 23)) (and (<= |ULTIMATE.start_main_~c~0#1| 63) .cse0 (<= 63 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 51) (<= 51 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 64 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 64) .cse0) (and .cse0 (< |ULTIMATE.start_main_~c~0#1| 2147483554) (<= 96 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 21) (<= 21 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 93 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 93)) (and (<= |ULTIMATE.start_main_~c~0#1| 65) .cse0 (<= 65 |ULTIMATE.start_main_~i~0#1|)) (and (<= 59 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 59)) (and (<= |ULTIMATE.start_main_~c~0#1| 53) (<= 53 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 13 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 13)) (and .cse0 (<= 9 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 9)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 11) (<= 11 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 15) (<= 15 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 69) .cse0 (<= 69 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 74 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 74)) (and (<= |ULTIMATE.start_main_~c~0#1| 68) .cse0 (<= 68 |ULTIMATE.start_main_~i~0#1|)) (and (< |ULTIMATE.start_main_~c~0#1| 2147483558) .cse0 (<= 100 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 67 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 67)) (and (<= |ULTIMATE.start_main_~c~0#1| 54) .cse0 (<= 54 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 81) (<= 81 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 22) .cse0 (<= 22 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 2) (<= 2 |ULTIMATE.start_main_~i~0#1|)) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 1) .cse0) (and .cse0 (<= 85 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 85)) (and (<= 10 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 10) .cse0) (and (<= 29 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 29)) (and (<= |ULTIMATE.start_main_~c~0#1| 33) .cse0 (<= 33 |ULTIMATE.start_main_~i~0#1|)) (and (<= 82 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 82)) (and (<= 48 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 48) .cse0) (and (<= 55 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 55) .cse0) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 71) (<= 71 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 32) (<= 32 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 60) (<= 60 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 31) (<= 31 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 70) .cse0 (<= 70 |ULTIMATE.start_main_~i~0#1|)) (and (<= 86 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 86) .cse0) (and (<= 40 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 40)) (and (<= |ULTIMATE.start_main_~c~0#1| 14) (<= 14 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= 95 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~c~0#1| 2147483553)) (and (<= |ULTIMATE.start_main_~c~0#1| 80) .cse0 (<= 80 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 5) (<= 5 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 3)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 77) (<= 77 |ULTIMATE.start_main_~i~0#1|)) (and (<= 30 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 30)) (and (<= 37 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 37) .cse0) (and (<= |ULTIMATE.start_main_~c~0#1| 39) .cse0 (<= 39 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 8) (<= 8 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 27) (<= 27 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 75) (<= 75 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 19) (<= 19 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 18 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~c~0#1| 18)) (and .cse0 (<= 46 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 46)))) [2022-11-26 00:06:18,383 INFO L445 BasicCegarLoop]: Path program histogram: [7, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:06:18,386 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:06:18,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:06:18 BoogieIcfgContainer [2022-11-26 00:06:18,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:06:18,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:06:18,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:06:18,429 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:06:18,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:32" (3/4) ... [2022-11-26 00:06:18,434 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:06:18,446 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-26 00:06:18,446 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-26 00:06:18,447 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:06:18,502 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:06:18,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:06:18,504 INFO L158 Benchmark]: Toolchain (without parser) took 166465.15ms. Allocated memory was 138.4MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 107.3MB in the beginning and 795.3MB in the end (delta: -688.0MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-26 00:06:18,504 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 138.4MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:06:18,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.33ms. Allocated memory is still 138.4MB. Free memory was 107.0MB in the beginning and 98.0MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:06:18,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.69ms. Allocated memory is still 138.4MB. Free memory was 98.0MB in the beginning and 96.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:06:18,505 INFO L158 Benchmark]: Boogie Preprocessor took 21.06ms. Allocated memory is still 138.4MB. Free memory was 96.5MB in the beginning and 95.6MB in the end (delta: 846.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:06:18,506 INFO L158 Benchmark]: RCFGBuilder took 376.44ms. Allocated memory is still 138.4MB. Free memory was 95.6MB in the beginning and 86.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-26 00:06:18,506 INFO L158 Benchmark]: TraceAbstraction took 165761.13ms. Allocated memory was 138.4MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 85.1MB in the beginning and 798.5MB in the end (delta: -713.3MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-26 00:06:18,506 INFO L158 Benchmark]: Witness Printer took 74.53ms. Allocated memory is still 2.1GB. Free memory was 798.5MB in the beginning and 795.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:06:18,508 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 138.4MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.33ms. Allocated memory is still 138.4MB. Free memory was 107.0MB in the beginning and 98.0MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.69ms. Allocated memory is still 138.4MB. Free memory was 98.0MB in the beginning and 96.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.06ms. Allocated memory is still 138.4MB. Free memory was 96.5MB in the beginning and 95.6MB in the end (delta: 846.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.44ms. Allocated memory is still 138.4MB. Free memory was 95.6MB in the beginning and 86.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 165761.13ms. Allocated memory was 138.4MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 85.1MB in the beginning and 798.5MB in the end (delta: -713.3MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 74.53ms. Allocated memory is still 2.1GB. Free memory was 798.5MB in the beginning and 795.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 165.6s, OverallIterations: 20, TraceHistogramMax: 191, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 35.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 17.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7083 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7083 mSDsluCounter, 3686 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3295 mSDsCounter, 1595 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3843 IncrementalHoareTripleChecker+Invalid, 5438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1595 mSolverCounterUnsat, 391 mSDtfsCounter, 3843 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16594 GetRequests, 15514 SyntacticMatches, 220 SemanticMatches, 860 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59752 ImplicationChecksByTransitivity, 66.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1904occurred in iteration=14, InterpolantAutomatonStates: 604, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 20 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 488 NumberOfFragments, 1142 HoareAnnotationTreeSize, 2 FomulaSimplifications, 2718 FormulaSimplificationTreeSizeReduction, 8.2s HoareSimplificationTime, 2 FomulaSimplificationsInter, 13098 FormulaSimplificationTreeSizeReductionInter, 9.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 90.7s InterpolantComputationTime, 13385 NumberOfCodeBlocks, 11835 NumberOfCodeBlocksAsserted, 123 NumberOfCheckSat, 18069 ConstructedInterpolants, 0 QuantifiedInterpolants, 28143 SizeOfPredicates, 0 NumberOfNonLiveVariables, 9269 ConjunctsInSsa, 350 ConjunctsInUnsatCore, 45 InterpolantComputations, 10 PerfectInterpolantSequences, 1182550/1369373 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((12 <= i && 0 <= c) && c <= 12) || ((c <= 76 && 76 <= i) && 0 <= c)) || ((c <= 89 && 89 <= i) && 0 <= c)) || ((57 <= i && 0 <= c) && c <= 57)) || ((c <= 56 && 0 <= c) && 56 <= i)) || ((c <= 25 && 0 <= c) && 25 <= i)) || ((88 <= i && 0 <= c) && c <= 88)) || ((0 <= c && 41 <= i) && c <= 41)) || ((0 <= c && c <= 73) && 73 <= i)) || ((91 <= i && 0 <= c) && c <= 91)) || ((c < 2147483557 && 0 <= c) && 99 <= i)) || ((83 <= i && 0 <= c) && c <= 83)) || ((0 <= c && 34 <= i) && c <= 34)) || ((c <= 43 && 43 <= i) && 0 <= c)) || ((0 <= c && c <= 0) && 0 <= i)) || ((c <= 61 && 0 <= c) && 61 <= i)) || ((0 <= c && c <= 20) && 20 <= i)) || ((c <= 38 && 0 <= c) && 38 <= i)) || ((c <= 42 && 42 <= i) && 0 <= c)) || ((90 <= i && 0 <= c) && c <= 90)) || ((47 <= i && c <= 47) && 0 <= c)) || ((72 <= i && c <= 72) && 0 <= c)) || ((49 <= i && 0 <= c) && c <= 49)) || ((35 <= i && c <= 35) && 0 <= c)) || ((c <= 45 && 0 <= c) && 45 <= i)) || ((98 <= i && 0 <= c) && c < 2147483556)) || ((c <= 87 && 87 <= i) && 0 <= c)) || ((0 <= c && 26 <= i) && c <= 26)) || ((44 <= i && 0 <= c) && c <= 44)) || ((0 <= c && 94 <= i) && c <= 94)) || ((79 <= i && c <= 79) && 0 <= c)) || ((c <= 50 && 0 <= c) && 50 <= i)) || ((52 <= i && c <= 52) && 0 <= c)) || ((58 <= i && 0 <= c) && c <= 58)) || ((c <= 66 && 66 <= i) && 0 <= c)) || ((c <= 24 && 0 <= c) && 24 <= i)) || ((0 <= c && c <= 6) && 6 <= i)) || ((97 <= i && 0 <= c) && c < 2147483555)) || ((84 <= i && 0 <= c) && c <= 84)) || ((36 <= i && c <= 36) && 0 <= c)) || ((0 <= c && 78 <= i) && c <= 78)) || ((c <= 4 && 0 <= c) && 4 <= i)) || ((c <= 92 && 92 <= i) && 0 <= c)) || ((28 <= i && c <= 28) && 0 <= c)) || ((17 <= i && 0 <= c) && c <= 17)) || ((7 <= i && 0 <= c) && c <= 7)) || ((c <= 62 && 0 <= c) && 62 <= i)) || ((0 <= c && c <= 16) && 16 <= i)) || ((23 <= i && 0 <= c) && c <= 23)) || ((c <= 63 && 0 <= c) && 63 <= i)) || ((c <= 51 && 51 <= i) && 0 <= c)) || ((64 <= i && c <= 64) && 0 <= c)) || ((0 <= c && c < 2147483554) && 96 <= i)) || ((c <= 21 && 21 <= i) && 0 <= c)) || ((93 <= i && 0 <= c) && c <= 93)) || ((c <= 65 && 0 <= c) && 65 <= i)) || ((59 <= i && 0 <= c) && c <= 59)) || ((c <= 53 && 53 <= i) && 0 <= c)) || ((13 <= i && 0 <= c) && c <= 13)) || ((0 <= c && 9 <= i) && c <= 9)) || ((0 <= c && c <= 11) && 11 <= i)) || ((c <= 15 && 15 <= i) && 0 <= c)) || ((c <= 69 && 0 <= c) && 69 <= i)) || ((0 <= c && 74 <= i) && c <= 74)) || ((c <= 68 && 0 <= c) && 68 <= i)) || ((c < 2147483558 && 0 <= c) && 100 <= i)) || ((0 <= c && 67 <= i) && c <= 67)) || ((c <= 54 && 0 <= c) && 54 <= i)) || ((0 <= c && c <= 81) && 81 <= i)) || ((c <= 22 && 0 <= c) && 22 <= i)) || ((0 <= c && c <= 2) && 2 <= i)) || ((1 <= i && c <= 1) && 0 <= c)) || ((0 <= c && 85 <= i) && c <= 85)) || ((10 <= i && c <= 10) && 0 <= c)) || ((29 <= i && 0 <= c) && c <= 29)) || ((c <= 33 && 0 <= c) && 33 <= i)) || ((82 <= i && 0 <= c) && c <= 82)) || ((48 <= i && c <= 48) && 0 <= c)) || ((55 <= i && c <= 55) && 0 <= c)) || ((0 <= c && c <= 71) && 71 <= i)) || ((0 <= c && c <= 32) && 32 <= i)) || ((c <= 60 && 60 <= i) && 0 <= c)) || ((0 <= c && c <= 31) && 31 <= i)) || ((c <= 70 && 0 <= c) && 70 <= i)) || ((86 <= i && c <= 86) && 0 <= c)) || ((40 <= i && 0 <= c) && c <= 40)) || ((c <= 14 && 14 <= i) && 0 <= c)) || ((0 <= c && 95 <= i) && c < 2147483553)) || ((c <= 80 && 0 <= c) && 80 <= i)) || ((c <= 5 && 5 <= i) && 0 <= c)) || ((0 <= c && 3 <= i) && c <= 3)) || ((0 <= c && c <= 77) && 77 <= i)) || ((30 <= i && 0 <= c) && c <= 30)) || ((37 <= i && c <= 37) && 0 <= c)) || ((c <= 39 && 0 <= c) && 39 <= i)) || ((0 <= c && c <= 8) && 8 <= i)) || ((c <= 27 && 27 <= i) && 0 <= c)) || ((0 <= c && c <= 75) && 75 <= i)) || ((c <= 19 && 19 <= i) && 0 <= c)) || ((18 <= i && 0 <= c) && c <= 18)) || ((0 <= c && 46 <= i) && c <= 46) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((((((((23 <= j && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i) && c < 2147483564) || ((((c < 2147483558 && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i)) || (((((c < 2147483560 && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i) && 11 <= j)) || (((((17 <= j && c < 2147483562) && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i)) || (((((14 <= j && 5 <= j) && c < 2147483561) && 0 <= c) && 0 <= i) && 100 <= i)) || (((((20 <= j && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i) && c < 2147483563)) || (((((8 <= j && c < 2147483559) && 5 <= j) && 0 <= c) && 0 <= i) && 100 <= i) RESULT: Ultimate proved your program to be correct! [2022-11-26 00:06:18,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_511d48c8-03fd-4603-9fad-e2f55665fd4c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE