./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/sll2n_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2n_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60a477b5dcc7be77af17ce3cc379f1876781ed95f896fb2ca2dbb7ba91ecb849 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:39:11,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:39:11,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:39:11,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:39:11,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:39:11,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:39:11,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:39:11,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:39:11,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:39:11,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:39:11,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:39:11,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:39:11,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:39:11,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:39:11,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:39:11,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:39:11,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:39:11,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:39:11,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:39:11,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:39:11,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:39:11,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:39:11,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:39:11,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:39:11,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:39:11,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:39:11,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:39:11,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:39:11,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:39:11,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:39:11,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:39:11,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:39:11,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:39:11,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:39:11,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:39:11,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:39:11,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:39:11,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:39:11,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:39:11,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:39:11,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:39:11,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 09:39:12,002 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:39:12,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:39:12,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:39:12,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:39:12,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:39:12,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:39:12,003 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:39:12,003 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:39:12,004 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:39:12,004 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:39:12,004 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:39:12,004 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:39:12,004 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:39:12,004 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:39:12,004 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:39:12,005 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:39:12,005 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:39:12,005 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:39:12,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:39:12,006 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:39:12,006 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:39:12,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:39:12,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:39:12,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:39:12,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:39:12,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:39:12,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:39:12,007 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:39:12,007 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:39:12,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:39:12,007 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:39:12,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:39:12,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:39:12,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:39:12,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:39:12,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:39:12,008 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:39:12,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:39:12,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:39:12,009 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:39:12,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:39:12,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:39:12,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:39:12,009 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_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60a477b5dcc7be77af17ce3cc379f1876781ed95f896fb2ca2dbb7ba91ecb849 [2022-12-14 09:39:12,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:39:12,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:39:12,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:39:12,222 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:39:12,223 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:39:12,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/list-simple/sll2n_update_all_reverse.i [2022-12-14 09:39:14,851 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:39:15,051 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:39:15,051 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/sv-benchmarks/c/list-simple/sll2n_update_all_reverse.i [2022-12-14 09:39:15,059 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/data/461c730b3/c17a538ddead47d7b743fc1c1f478bfe/FLAG87c032151 [2022-12-14 09:39:15,069 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/data/461c730b3/c17a538ddead47d7b743fc1c1f478bfe [2022-12-14 09:39:15,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:39:15,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:39:15,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:39:15,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:39:15,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:39:15,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@293ee42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15, skipping insertion in model container [2022-12-14 09:39:15,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:39:15,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:39:15,293 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/sv-benchmarks/c/list-simple/sll2n_update_all_reverse.i[24236,24249] [2022-12-14 09:39:15,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:39:15,300 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:39:15,330 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/sv-benchmarks/c/list-simple/sll2n_update_all_reverse.i[24236,24249] [2022-12-14 09:39:15,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:39:15,347 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:39:15,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15 WrapperNode [2022-12-14 09:39:15,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:39:15,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:39:15,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:39:15,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:39:15,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,376 INFO L138 Inliner]: procedures = 126, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 136 [2022-12-14 09:39:15,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:39:15,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:39:15,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:39:15,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:39:15,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,394 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:39:15,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:39:15,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:39:15,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:39:15,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (1/1) ... [2022-12-14 09:39:15,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:39:15,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:39:15,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:39:15,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:39:15,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:39:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:39:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:39:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:39:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:39:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:39:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:39:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:39:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:39:15,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:39:15,534 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:39:15,535 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:39:15,712 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:39:15,764 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:39:15,764 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-14 09:39:15,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:39:15 BoogieIcfgContainer [2022-12-14 09:39:15,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:39:15,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:39:15,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:39:15,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:39:15,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:39:15" (1/3) ... [2022-12-14 09:39:15,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261998d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:39:15, skipping insertion in model container [2022-12-14 09:39:15,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:39:15" (2/3) ... [2022-12-14 09:39:15,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261998d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:39:15, skipping insertion in model container [2022-12-14 09:39:15,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:39:15" (3/3) ... [2022-12-14 09:39:15,775 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2n_update_all_reverse.i [2022-12-14 09:39:15,790 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:39:15,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-14 09:39:15,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:39:15,832 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;@2f98ca83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:39:15,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-12-14 09:39:15,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.896551724137931) internal successors, (55), 47 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:15,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 09:39:15,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:15,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 09:39:15,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:15,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:15,848 INFO L85 PathProgramCache]: Analyzing trace with hash 179895, now seen corresponding path program 1 times [2022-12-14 09:39:15,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:15,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930138158] [2022-12-14 09:39:15,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:15,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:39:16,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:16,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930138158] [2022-12-14 09:39:16,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930138158] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:16,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:39:16,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:39:16,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705473815] [2022-12-14 09:39:16,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:16,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:39:16,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:16,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:39:16,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:39:16,087 INFO L87 Difference]: Start difference. First operand has 48 states, 29 states have (on average 1.896551724137931) internal successors, (55), 47 states have internal predecessors, (55), 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, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:16,156 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2022-12-14 09:39:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:39:16,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 09:39:16,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:16,164 INFO L225 Difference]: With dead ends: 95 [2022-12-14 09:39:16,164 INFO L226 Difference]: Without dead ends: 50 [2022-12-14 09:39:16,166 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 [2022-12-14 09:39:16,168 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:16,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 69 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:39:16,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-12-14 09:39:16,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2022-12-14 09:39:16,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-12-14 09:39:16,192 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 3 [2022-12-14 09:39:16,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:16,192 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-12-14 09:39:16,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,192 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-12-14 09:39:16,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:39:16,193 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:16,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:39:16,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:39:16,193 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:16,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:16,194 INFO L85 PathProgramCache]: Analyzing trace with hash 5436400, now seen corresponding path program 1 times [2022-12-14 09:39:16,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:16,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290810244] [2022-12-14 09:39:16,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:16,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:39:16,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:16,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290810244] [2022-12-14 09:39:16,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290810244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:16,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:39:16,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:39:16,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851873416] [2022-12-14 09:39:16,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:16,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:39:16,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:16,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:39:16,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:39:16,271 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2022-12-14 09:39:16,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:16,306 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-12-14 09:39:16,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:39:16,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 [2022-12-14 09:39:16,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:16,307 INFO L225 Difference]: With dead ends: 45 [2022-12-14 09:39:16,307 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 09:39:16,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:39:16,308 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 5 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:16,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 108 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:39:16,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 09:39:16,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-12-14 09:39:16,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.7777777777777777) 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) [2022-12-14 09:39:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-12-14 09:39:16,312 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 4 [2022-12-14 09:39:16,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:16,313 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-12-14 09:39:16,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2022-12-14 09:39:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-12-14 09:39:16,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:39:16,313 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:16,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:39:16,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:39:16,314 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:16,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:16,314 INFO L85 PathProgramCache]: Analyzing trace with hash 168528456, now seen corresponding path program 1 times [2022-12-14 09:39:16,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:16,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271375500] [2022-12-14 09:39:16,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:16,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:39:16,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:16,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271375500] [2022-12-14 09:39:16,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271375500] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:16,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:39:16,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:39:16,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61801118] [2022-12-14 09:39:16,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:16,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:39:16,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:16,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:39:16,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:39:16,385 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:16,412 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2022-12-14 09:39:16,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:39:16,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 09:39:16,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:16,413 INFO L225 Difference]: With dead ends: 44 [2022-12-14 09:39:16,413 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 09:39:16,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:39:16,415 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 43 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:16,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 72 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:39:16,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 09:39:16,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-12-14 09:39:16,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-12-14 09:39:16,419 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 5 [2022-12-14 09:39:16,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:16,419 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-12-14 09:39:16,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,419 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-12-14 09:39:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 09:39:16,419 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:16,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:16,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:39:16,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:16,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:16,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1252905078, now seen corresponding path program 1 times [2022-12-14 09:39:16,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:16,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811284993] [2022-12-14 09:39:16,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:16,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:16,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:39:16,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:16,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811284993] [2022-12-14 09:39:16,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811284993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:16,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:39:16,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:39:16,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628518117] [2022-12-14 09:39:16,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:16,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:39:16,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:16,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:39:16,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:39:16,473 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:16,503 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2022-12-14 09:39:16,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:39:16,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 09:39:16,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:16,504 INFO L225 Difference]: With dead ends: 43 [2022-12-14 09:39:16,505 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 09:39:16,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:39:16,506 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:16,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 23 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:39:16,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 09:39:16,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-12-14 09:39:16,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 40 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-12-14 09:39:16,512 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 7 [2022-12-14 09:39:16,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:16,513 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-12-14 09:39:16,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,513 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-12-14 09:39:16,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 09:39:16,513 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:16,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:16,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:39:16,514 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:16,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:16,514 INFO L85 PathProgramCache]: Analyzing trace with hash -185351688, now seen corresponding path program 1 times [2022-12-14 09:39:16,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:16,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717868896] [2022-12-14 09:39:16,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:16,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:16,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:39:16,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:16,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717868896] [2022-12-14 09:39:16,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717868896] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:16,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:39:16,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:39:16,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310393391] [2022-12-14 09:39:16,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:16,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:39:16,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:16,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:39:16,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:39:16,560 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:16,588 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-12-14 09:39:16,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:39:16,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 09:39:16,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:16,589 INFO L225 Difference]: With dead ends: 41 [2022-12-14 09:39:16,589 INFO L226 Difference]: Without dead ends: 39 [2022-12-14 09:39:16,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:39:16,590 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:16,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 23 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:39:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-14 09:39:16,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-14 09:39:16,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-12-14 09:39:16,596 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 8 [2022-12-14 09:39:16,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:16,596 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-12-14 09:39:16,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,596 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-12-14 09:39:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 09:39:16,597 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:16,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:16,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:39:16,597 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:16,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:16,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2029310662, now seen corresponding path program 1 times [2022-12-14 09:39:16,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:16,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817640865] [2022-12-14 09:39:16,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:16,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:16,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:39:16,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:16,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817640865] [2022-12-14 09:39:16,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817640865] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:16,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:39:16,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:39:16,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033206286] [2022-12-14 09:39:16,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:16,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:39:16,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:16,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:39:16,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:39:16,651 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:16,696 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-12-14 09:39:16,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:39:16,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 09:39:16,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:16,697 INFO L225 Difference]: With dead ends: 43 [2022-12-14 09:39:16,698 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 09:39:16,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:39:16,699 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 65 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:16,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 24 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:39:16,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 09:39:16,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2022-12-14 09:39:16,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-12-14 09:39:16,705 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 10 [2022-12-14 09:39:16,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:16,706 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-12-14 09:39:16,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-12-14 09:39:16,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:39:16,706 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:16,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:16,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:39:16,707 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:16,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:16,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1515878996, now seen corresponding path program 1 times [2022-12-14 09:39:16,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:16,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725499280] [2022-12-14 09:39:16,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:16,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:16,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:39:16,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:16,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725499280] [2022-12-14 09:39:16,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725499280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:16,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:39:16,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:39:16,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229208137] [2022-12-14 09:39:16,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:16,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:39:16,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:16,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:39:16,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:39:16,759 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) 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) [2022-12-14 09:39:16,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:16,811 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2022-12-14 09:39:16,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:39:16,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) 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 [2022-12-14 09:39:16,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:16,812 INFO L225 Difference]: With dead ends: 64 [2022-12-14 09:39:16,812 INFO L226 Difference]: Without dead ends: 62 [2022-12-14 09:39:16,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:39:16,813 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 86 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:16,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 40 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:39:16,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-14 09:39:16,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 43. [2022-12-14 09:39:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 42 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) [2022-12-14 09:39:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-12-14 09:39:16,820 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 11 [2022-12-14 09:39:16,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:16,821 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-12-14 09:39:16,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) 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) [2022-12-14 09:39:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-12-14 09:39:16,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 09:39:16,821 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:16,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:16,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:39:16,822 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:16,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:16,822 INFO L85 PathProgramCache]: Analyzing trace with hash 765808020, now seen corresponding path program 1 times [2022-12-14 09:39:16,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:16,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759369376] [2022-12-14 09:39:16,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:16,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:39:16,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:16,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759369376] [2022-12-14 09:39:16,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759369376] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:39:16,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504247586] [2022-12-14 09:39:16,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:16,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:16,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:39:16,909 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:39:16,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:39:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:16,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:39:16,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:39:17,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:39:17,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:39:17,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:39:17,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504247586] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:39:17,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1602741390] [2022-12-14 09:39:17,063 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-12-14 09:39:17,063 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:39:17,067 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:39:17,072 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:39:17,073 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:39:17,170 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:39:17,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:39:17,211 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:39:17,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:39:17,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:17,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:17,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:17,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-12-14 09:39:17,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:17,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:17,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:17,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:17,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:17,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:17,383 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 09:39:17,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 09:39:17,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 09:39:17,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:17,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:17,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:17,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-12-14 09:39:17,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:17,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:17,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:17,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:17,513 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:17,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2022-12-14 09:39:17,786 INFO L321 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2022-12-14 09:39:17,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 401 treesize of output 406 [2022-12-14 09:39:17,866 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-12-14 09:39:17,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-12-14 09:39:18,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:18,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:18,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:18,250 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-12-14 09:39:18,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 353 [2022-12-14 09:39:18,272 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:18,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:18,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:18,310 INFO L321 Elim1Store]: treesize reduction 58, result has 22.7 percent of original size [2022-12-14 09:39:18,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 417 treesize of output 356 [2022-12-14 09:39:18,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:18,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:18,344 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-12-14 09:39:18,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 426 treesize of output 391 [2022-12-14 09:39:18,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:18,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:18,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:18,408 INFO L321 Elim1Store]: treesize reduction 102, result has 21.5 percent of original size [2022-12-14 09:39:18,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 442 treesize of output 398 [2022-12-14 09:39:18,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:18,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:18,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:18,459 INFO L321 Elim1Store]: treesize reduction 66, result has 25.8 percent of original size [2022-12-14 09:39:18,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 427 treesize of output 416 [2022-12-14 09:39:18,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:18,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:18,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:18,499 INFO L321 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2022-12-14 09:39:18,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 429 treesize of output 419 [2022-12-14 09:39:18,795 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:39:18,798 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:39:18,800 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 09:39:18,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:39:18,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:39:18,824 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:39:19,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1602741390] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:19,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:39:19,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 11 [2022-12-14 09:39:19,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626903923] [2022-12-14 09:39:19,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:19,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:39:19,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:19,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:39:19,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:39:19,923 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:20,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:20,037 INFO L93 Difference]: Finished difference Result 95 states and 106 transitions. [2022-12-14 09:39:20,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:39:20,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2022-12-14 09:39:20,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:20,039 INFO L225 Difference]: With dead ends: 95 [2022-12-14 09:39:20,039 INFO L226 Difference]: Without dead ends: 63 [2022-12-14 09:39:20,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:39:20,039 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 89 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:20,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 64 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:39:20,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-12-14 09:39:20,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 44. [2022-12-14 09:39:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.411764705882353) 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) [2022-12-14 09:39:20,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-12-14 09:39:20,047 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 13 [2022-12-14 09:39:20,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:20,047 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-12-14 09:39:20,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:20,047 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-12-14 09:39:20,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 09:39:20,047 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:20,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:20,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:39:20,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 09:39:20,250 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:20,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:20,251 INFO L85 PathProgramCache]: Analyzing trace with hash 765804598, now seen corresponding path program 1 times [2022-12-14 09:39:20,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:20,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412530043] [2022-12-14 09:39:20,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:20,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:20,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:39:20,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:20,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412530043] [2022-12-14 09:39:20,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412530043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:20,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:39:20,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:39:20,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432601748] [2022-12-14 09:39:20,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:20,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:39:20,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:20,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:39:20,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:39:20,324 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:20,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:20,346 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2022-12-14 09:39:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:39:20,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-12-14 09:39:20,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:20,347 INFO L225 Difference]: With dead ends: 44 [2022-12-14 09:39:20,347 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 09:39:20,347 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 [2022-12-14 09:39:20,348 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 2 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:20,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 56 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:39:20,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 09:39:20,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-12-14 09:39:20,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:20,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-12-14 09:39:20,358 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 13 [2022-12-14 09:39:20,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:20,358 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-12-14 09:39:20,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:20,358 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-12-14 09:39:20,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:39:20,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:20,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:20,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:39:20,359 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:20,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:20,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2029861147, now seen corresponding path program 1 times [2022-12-14 09:39:20,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:20,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126945959] [2022-12-14 09:39:20,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:20,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:39:20,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:20,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126945959] [2022-12-14 09:39:20,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126945959] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:39:20,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158321630] [2022-12-14 09:39:20,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:20,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:20,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:39:20,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:39:20,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:39:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:20,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:39:20,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:39:20,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:39:20,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:39:20,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:39:20,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158321630] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:39:20,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [559065607] [2022-12-14 09:39:20,504 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 09:39:20,505 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:39:20,505 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:39:20,505 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:39:20,505 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:39:20,538 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:39:20,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:39:20,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:39:20,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:20,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:20,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:20,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:20,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:20,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:20,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-12-14 09:39:20,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:20,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:20,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:20,659 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-12-14 09:39:20,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 09:39:20,709 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 09:39:20,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 09:39:20,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:20,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:20,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:20,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-12-14 09:39:20,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:20,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:20,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:20,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:20,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:20,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2022-12-14 09:39:21,074 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-12-14 09:39:21,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-12-14 09:39:21,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 09:39:21,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:21,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:21,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:21,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 44 [2022-12-14 09:39:21,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:21,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:21,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:21,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:21,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:21,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2022-12-14 09:39:21,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:39:21,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:39:21,524 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:39:22,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [559065607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:22,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:39:22,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 12 [2022-12-14 09:39:22,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107670851] [2022-12-14 09:39:22,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:22,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:39:22,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:22,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:39:22,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-12-14 09:39:22,629 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:22,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:22,834 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2022-12-14 09:39:22,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:39:22,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 09:39:22,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:22,835 INFO L225 Difference]: With dead ends: 64 [2022-12-14 09:39:22,835 INFO L226 Difference]: Without dead ends: 63 [2022-12-14 09:39:22,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-12-14 09:39:22,836 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 109 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:22,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 78 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:39:22,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-12-14 09:39:22,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 45. [2022-12-14 09:39:22,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:22,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-12-14 09:39:22,841 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 14 [2022-12-14 09:39:22,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:22,841 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-12-14 09:39:22,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:22,841 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-12-14 09:39:22,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 09:39:22,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:22,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:22,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:39:23,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 09:39:23,043 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:23,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:23,045 INFO L85 PathProgramCache]: Analyzing trace with hash -781403675, now seen corresponding path program 1 times [2022-12-14 09:39:23,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:23,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924474616] [2022-12-14 09:39:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:23,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:23,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:39:23,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:23,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924474616] [2022-12-14 09:39:23,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924474616] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:39:23,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509252892] [2022-12-14 09:39:23,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:23,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:23,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:39:23,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:39:23,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:39:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:23,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:39:23,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:39:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:39:23,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:39:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:39:23,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509252892] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:39:23,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1268053154] [2022-12-14 09:39:23,235 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 09:39:23,235 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:39:23,236 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:39:23,236 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:39:23,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:39:23,268 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:39:23,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:39:23,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:39:23,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:23,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:23,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:23,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-12-14 09:39:23,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,323 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:23,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:23,375 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-12-14 09:39:23,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 09:39:23,415 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 09:39:23,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 09:39:23,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:23,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-12-14 09:39:23,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:23,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:23,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-12-14 09:39:23,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:23,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-12-14 09:39:23,743 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-12-14 09:39:23,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-12-14 09:39:23,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 09:39:23,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:23,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 44 [2022-12-14 09:39:23,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:23,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:23,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:23,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:23,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2022-12-14 09:39:24,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:24,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:24,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:24,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:39:24,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:39:24,200 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:39:25,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1268053154] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:25,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:39:25,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 16 [2022-12-14 09:39:25,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449717512] [2022-12-14 09:39:25,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:25,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 09:39:25,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:25,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 09:39:25,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-12-14 09:39:25,579 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:25,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:25,957 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-12-14 09:39:25,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 09:39:25,958 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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 16 [2022-12-14 09:39:25,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:25,958 INFO L225 Difference]: With dead ends: 63 [2022-12-14 09:39:25,958 INFO L226 Difference]: Without dead ends: 60 [2022-12-14 09:39:25,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-12-14 09:39:25,959 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 69 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:25,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 63 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:39:25,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-12-14 09:39:25,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 48. [2022-12-14 09:39:25,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:25,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-12-14 09:39:25,964 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 16 [2022-12-14 09:39:25,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:25,964 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-12-14 09:39:25,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:25,964 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-12-14 09:39:25,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 09:39:25,965 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:25,965 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:25,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:39:26,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:26,166 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:26,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:26,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1999843562, now seen corresponding path program 1 times [2022-12-14 09:39:26,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:26,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40011408] [2022-12-14 09:39:26,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:26,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:26,232 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 09:39:26,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:26,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40011408] [2022-12-14 09:39:26,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40011408] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:39:26,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042973475] [2022-12-14 09:39:26,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:26,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:26,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:39:26,234 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:39:26,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:39:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:26,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:39:26,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:39:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 09:39:26,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:39:26,338 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 09:39:26,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042973475] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:39:26,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [480288578] [2022-12-14 09:39:26,340 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-12-14 09:39:26,340 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:39:26,340 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:39:26,340 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:39:26,340 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:39:26,372 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:39:26,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:39:26,402 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:39:26,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:39:26,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:26,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:26,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:26,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-12-14 09:39:26,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:26,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:26,506 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-12-14 09:39:26,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 09:39:26,553 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 09:39:26,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 09:39:26,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:26,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-12-14 09:39:26,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:26,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:26,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:26,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2022-12-14 09:39:26,841 INFO L321 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2022-12-14 09:39:26,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 401 treesize of output 406 [2022-12-14 09:39:26,898 INFO L321 Elim1Store]: treesize reduction 196, result has 10.5 percent of original size [2022-12-14 09:39:26,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 406 [2022-12-14 09:39:26,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:26,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 44 [2022-12-14 09:39:26,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:26,988 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:26,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:27,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:27,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:27,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2022-12-14 09:39:27,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:27,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:27,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:27,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:27,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:27,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:27,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:27,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:27,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:27,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:39:27,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:39:27,488 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:39:28,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [480288578] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:28,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:39:28,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 14 [2022-12-14 09:39:28,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404946241] [2022-12-14 09:39:28,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:28,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:39:28,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:28,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:39:28,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-12-14 09:39:28,992 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2022-12-14 09:39:29,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:29,630 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2022-12-14 09:39:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 09:39:29,630 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 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 20 [2022-12-14 09:39:29,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:29,630 INFO L225 Difference]: With dead ends: 58 [2022-12-14 09:39:29,630 INFO L226 Difference]: Without dead ends: 54 [2022-12-14 09:39:29,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 9 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-12-14 09:39:29,631 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 114 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:29,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 42 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:39:29,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-14 09:39:29,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2022-12-14 09:39:29,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:29,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-12-14 09:39:29,640 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 20 [2022-12-14 09:39:29,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:29,640 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-12-14 09:39:29,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2022-12-14 09:39:29,640 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-12-14 09:39:29,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 09:39:29,640 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:29,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:29,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:39:29,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:29,842 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:29,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:29,842 INFO L85 PathProgramCache]: Analyzing trace with hash -593753189, now seen corresponding path program 1 times [2022-12-14 09:39:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:29,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430163281] [2022-12-14 09:39:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:29,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 09:39:29,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:29,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430163281] [2022-12-14 09:39:29,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430163281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:29,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:39:29,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:39:29,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417470236] [2022-12-14 09:39:29,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:29,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:39:29,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:29,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:39:29,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:39:29,915 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:29,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:29,935 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-12-14 09:39:29,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:39:29,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2022-12-14 09:39:29,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:29,935 INFO L225 Difference]: With dead ends: 39 [2022-12-14 09:39:29,935 INFO L226 Difference]: Without dead ends: 38 [2022-12-14 09:39:29,936 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 [2022-12-14 09:39:29,936 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:29,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 46 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:39:29,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-14 09:39:29,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-12-14 09:39:29,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:29,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-12-14 09:39:29,943 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2022-12-14 09:39:29,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:29,944 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-12-14 09:39:29,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:29,944 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-12-14 09:39:29,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 09:39:29,944 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:29,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:29,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:39:29,945 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:29,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:29,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1226418579, now seen corresponding path program 1 times [2022-12-14 09:39:29,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:29,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292926088] [2022-12-14 09:39:29,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:29,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:30,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:39:30,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:30,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292926088] [2022-12-14 09:39:30,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292926088] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:39:30,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402671909] [2022-12-14 09:39:30,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:30,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:30,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:39:30,006 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:39:30,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:39:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:30,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:39:30,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:39:30,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:39:30,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:39:30,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:39:30,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402671909] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:39:30,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1068006025] [2022-12-14 09:39:30,106 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-12-14 09:39:30,106 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:39:30,106 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:39:30,106 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:39:30,107 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:39:30,143 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:39:30,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:39:30,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:39:30,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:30,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:30,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:30,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:30,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:30,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:30,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:30,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:30,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:30,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-12-14 09:39:30,276 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 09:39:30,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 09:39:30,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 09:39:30,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:30,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:30,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:30,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-12-14 09:39:30,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:30,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:30,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:30,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:30,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:30,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2022-12-14 09:39:30,589 INFO L321 Elim1Store]: treesize reduction 180, result has 17.8 percent of original size [2022-12-14 09:39:30,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 422 [2022-12-14 09:39:30,622 INFO L321 Elim1Store]: treesize reduction 91, result has 10.8 percent of original size [2022-12-14 09:39:30,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 401 treesize of output 406 [2022-12-14 09:39:30,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:30,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:30,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:30,912 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-12-14 09:39:30,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 353 [2022-12-14 09:39:30,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:30,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:30,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:30,958 INFO L321 Elim1Store]: treesize reduction 58, result has 22.7 percent of original size [2022-12-14 09:39:30,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 417 treesize of output 356 [2022-12-14 09:39:30,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:30,983 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-12-14 09:39:30,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 426 treesize of output 391 [2022-12-14 09:39:31,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:31,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:31,026 INFO L321 Elim1Store]: treesize reduction 86, result has 19.6 percent of original size [2022-12-14 09:39:31,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 442 treesize of output 398 [2022-12-14 09:39:31,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:31,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:31,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:31,067 INFO L321 Elim1Store]: treesize reduction 66, result has 25.8 percent of original size [2022-12-14 09:39:31,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 427 treesize of output 416 [2022-12-14 09:39:31,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:31,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:31,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:31,098 INFO L321 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2022-12-14 09:39:31,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 429 treesize of output 419 [2022-12-14 09:39:31,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:31,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:31,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:31,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:31,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:31,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:31,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:31,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:31,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:31,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:39:31,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:39:31,664 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:39:33,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1068006025] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:33,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:39:33,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 17 [2022-12-14 09:39:33,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5090754] [2022-12-14 09:39:33,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:33,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 09:39:33,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:33,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 09:39:33,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-12-14 09:39:33,062 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:34,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:34,639 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2022-12-14 09:39:34,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 09:39:34,639 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-12-14 09:39:34,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:34,640 INFO L225 Difference]: With dead ends: 72 [2022-12-14 09:39:34,640 INFO L226 Difference]: Without dead ends: 54 [2022-12-14 09:39:34,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 55 SyntacticMatches, 9 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2022-12-14 09:39:34,640 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 69 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:34,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 59 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:39:34,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-14 09:39:34,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 43. [2022-12-14 09:39:34,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 42 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) [2022-12-14 09:39:34,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-12-14 09:39:34,647 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 26 [2022-12-14 09:39:34,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:34,647 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-12-14 09:39:34,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:34,647 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-12-14 09:39:34,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 09:39:34,647 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:34,647 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:34,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 09:39:34,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 09:39:34,848 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:34,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:34,848 INFO L85 PathProgramCache]: Analyzing trace with hash -933891375, now seen corresponding path program 1 times [2022-12-14 09:39:34,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:34,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331869587] [2022-12-14 09:39:34,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:34,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:34,907 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 09:39:34,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:34,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331869587] [2022-12-14 09:39:34,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331869587] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:39:34,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209721048] [2022-12-14 09:39:34,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:34,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:34,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:39:34,909 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:39:34,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 09:39:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:34,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:39:34,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:39:35,005 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 09:39:35,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:39:35,019 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 09:39:35,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209721048] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:39:35,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [496272609] [2022-12-14 09:39:35,022 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-12-14 09:39:35,022 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:39:35,022 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:39:35,022 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:39:35,022 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:39:35,058 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:39:35,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:39:35,087 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:39:35,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:39:35,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-12-14 09:39:35,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:35,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:35,205 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 09:39:35,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 09:39:35,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 09:39:35,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-12-14 09:39:35,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:35,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-12-14 09:39:35,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-12-14 09:39:35,522 INFO L321 Elim1Store]: treesize reduction 180, result has 17.8 percent of original size [2022-12-14 09:39:35,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 422 [2022-12-14 09:39:35,551 INFO L321 Elim1Store]: treesize reduction 91, result has 10.8 percent of original size [2022-12-14 09:39:35,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 401 treesize of output 406 [2022-12-14 09:39:35,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,833 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-12-14 09:39:35,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 414 treesize of output 379 [2022-12-14 09:39:35,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,884 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-12-14 09:39:35,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 353 [2022-12-14 09:39:35,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,932 INFO L321 Elim1Store]: treesize reduction 86, result has 19.6 percent of original size [2022-12-14 09:39:35,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 430 treesize of output 386 [2022-12-14 09:39:35,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:35,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,975 INFO L321 Elim1Store]: treesize reduction 66, result has 25.8 percent of original size [2022-12-14 09:39:35,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 404 [2022-12-14 09:39:35,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:35,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:36,013 INFO L321 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2022-12-14 09:39:36,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 417 treesize of output 407 [2022-12-14 09:39:36,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:36,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:36,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:36,054 INFO L321 Elim1Store]: treesize reduction 58, result has 22.7 percent of original size [2022-12-14 09:39:36,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 429 treesize of output 368 [2022-12-14 09:39:36,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:36,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:36,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:36,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:36,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:36,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:36,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:36,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:36,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:36,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:39:36,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:39:36,651 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:39:38,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [496272609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:38,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:39:38,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 18 [2022-12-14 09:39:38,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816386720] [2022-12-14 09:39:38,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:38,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 09:39:38,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:38,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 09:39:38,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-12-14 09:39:38,720 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 15 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:40,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:40,293 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2022-12-14 09:39:40,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 09:39:40,293 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-12-14 09:39:40,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:40,293 INFO L225 Difference]: With dead ends: 57 [2022-12-14 09:39:40,293 INFO L226 Difference]: Without dead ends: 56 [2022-12-14 09:39:40,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 68 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=174, Invalid=696, Unknown=0, NotChecked=0, Total=870 [2022-12-14 09:39:40,294 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 91 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:40,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 45 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:39:40,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-14 09:39:40,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2022-12-14 09:39:40,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 44 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) [2022-12-14 09:39:40,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2022-12-14 09:39:40,302 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 32 [2022-12-14 09:39:40,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:40,302 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2022-12-14 09:39:40,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:40,303 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-12-14 09:39:40,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 09:39:40,303 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:40,303 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:40,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 09:39:40,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:40,505 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:40,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:40,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1240381973, now seen corresponding path program 1 times [2022-12-14 09:39:40,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:40,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641705369] [2022-12-14 09:39:40,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:40,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:40,595 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:39:40,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:40,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641705369] [2022-12-14 09:39:40,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641705369] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:39:40,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774058061] [2022-12-14 09:39:40,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:40,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:40,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:39:40,597 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:39:40,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 09:39:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:40,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:39:40,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:39:40,697 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:39:40,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:39:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 09:39:40,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774058061] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:39:40,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1535137768] [2022-12-14 09:39:40,713 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 09:39:40,713 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:39:40,713 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:39:40,713 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:39:40,713 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:39:40,745 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:39:40,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:39:40,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:39:40,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:40,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:40,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:40,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-12-14 09:39:40,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:40,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:40,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:40,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:40,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-12-14 09:39:40,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:40,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 09:39:40,871 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-12-14 09:39:40,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 09:39:40,914 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 09:39:40,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 09:39:40,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:40,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:40,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:40,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-12-14 09:39:40,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:40,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:40,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:40,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:40,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:40,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2022-12-14 09:39:41,178 INFO L321 Elim1Store]: treesize reduction 180, result has 17.8 percent of original size [2022-12-14 09:39:41,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 422 [2022-12-14 09:39:41,207 INFO L321 Elim1Store]: treesize reduction 91, result has 10.8 percent of original size [2022-12-14 09:39:41,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 401 treesize of output 406 [2022-12-14 09:39:41,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:41,434 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-12-14 09:39:41,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 414 treesize of output 379 [2022-12-14 09:39:41,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:41,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:41,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:41,482 INFO L321 Elim1Store]: treesize reduction 66, result has 25.8 percent of original size [2022-12-14 09:39:41,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 404 [2022-12-14 09:39:41,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:41,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:41,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:41,520 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-12-14 09:39:41,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 353 [2022-12-14 09:39:41,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:41,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:41,555 INFO L321 Elim1Store]: treesize reduction 86, result has 19.6 percent of original size [2022-12-14 09:39:41,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 430 treesize of output 386 [2022-12-14 09:39:41,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:41,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:41,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:41,591 INFO L321 Elim1Store]: treesize reduction 58, result has 22.7 percent of original size [2022-12-14 09:39:41,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 417 treesize of output 356 [2022-12-14 09:39:41,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:41,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:41,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:41,622 INFO L321 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2022-12-14 09:39:41,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 429 treesize of output 419 [2022-12-14 09:39:41,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:41,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:41,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:42,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:42,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:42,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:42,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:42,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:42,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:42,324 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-12-14 09:39:42,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-12-14 09:39:42,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 09:39:42,367 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:39:44,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1535137768] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:44,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:39:44,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [4, 4, 4] total 23 [2022-12-14 09:39:44,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892955439] [2022-12-14 09:39:44,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:44,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 09:39:44,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:44,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 09:39:44,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-12-14 09:39:44,898 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 17 states, 16 states have (on average 1.8125) internal successors, (29), 16 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:46,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:46,928 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2022-12-14 09:39:46,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 09:39:46,928 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.8125) internal successors, (29), 16 states have internal predecessors, (29), 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 35 [2022-12-14 09:39:46,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:46,929 INFO L225 Difference]: With dead ends: 75 [2022-12-14 09:39:46,929 INFO L226 Difference]: Without dead ends: 71 [2022-12-14 09:39:46,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 73 SyntacticMatches, 13 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=244, Invalid=1088, Unknown=0, NotChecked=0, Total=1332 [2022-12-14 09:39:46,930 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 87 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:46,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 44 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:39:46,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-12-14 09:39:46,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 52. [2022-12-14 09:39:46,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 51 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:46,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2022-12-14 09:39:46,944 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 35 [2022-12-14 09:39:46,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:46,945 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2022-12-14 09:39:46,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.8125) internal successors, (29), 16 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2022-12-14 09:39:46,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 09:39:46,946 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:46,946 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:46,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 09:39:47,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 09:39:47,147 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:47,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:47,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1488379791, now seen corresponding path program 1 times [2022-12-14 09:39:47,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:47,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963552565] [2022-12-14 09:39:47,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:47,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:47,226 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:39:47,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:47,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963552565] [2022-12-14 09:39:47,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963552565] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:39:47,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037637062] [2022-12-14 09:39:47,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:47,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:47,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:39:47,227 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:39:47,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 09:39:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:47,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:39:47,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:39:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:39:47,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:39:47,345 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:39:47,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037637062] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:39:47,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1107666112] [2022-12-14 09:39:47,347 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-12-14 09:39:47,348 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:39:47,348 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:39:47,348 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:39:47,348 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:39:47,379 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:39:47,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:39:47,405 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:39:47,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:39:47,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:47,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-12-14 09:39:47,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:47,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:47,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-12-14 09:39:47,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:47,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 09:39:47,506 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-12-14 09:39:47,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 09:39:47,537 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 09:39:47,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 09:39:47,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:47,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-12-14 09:39:47,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:47,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:47,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:47,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2022-12-14 09:39:47,793 INFO L321 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2022-12-14 09:39:47,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 401 treesize of output 406 [2022-12-14 09:39:47,848 INFO L321 Elim1Store]: treesize reduction 196, result has 10.5 percent of original size [2022-12-14 09:39:47,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 406 [2022-12-14 09:39:47,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:47,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 44 [2022-12-14 09:39:47,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:47,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:47,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:47,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:47,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2022-12-14 09:39:48,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:48,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:48,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:48,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:48,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:48,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:48,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:48,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:48,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:49,046 INFO L321 Elim1Store]: treesize reduction 180, result has 17.8 percent of original size [2022-12-14 09:39:49,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 422 [2022-12-14 09:39:49,078 INFO L321 Elim1Store]: treesize reduction 91, result has 10.8 percent of original size [2022-12-14 09:39:49,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 401 treesize of output 406 [2022-12-14 09:39:49,283 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:39:51,747 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3453#(and (<= |ULTIMATE.start_sll_get_data_at_~index#1| 0) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_create_~len#1| 0) (<= |ULTIMATE.start_sll_create_#res#1.offset| 0) (<= 1 |ULTIMATE.start_sll_create_~data#1|) (<= |ULTIMATE.start_main_~expected~0#1| 3) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_sll_get_data_at_#in~head#1.offset|) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (<= |ULTIMATE.start_sll_get_data_at_#res#1| 3) (<= 0 |ULTIMATE.start_sll_create_~len#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_sll_create_#res#1.offset|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= 0 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= |ULTIMATE.start_sll_get_data_at_#in~index#1| 1) (<= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| 0) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|) (< (+ 2147483647 |ULTIMATE.start_main_#t~post14#1|) 0) (= |#NULL.base| 0))' at error location [2022-12-14 09:39:51,747 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:39:51,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:39:51,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-12-14 09:39:51,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261135920] [2022-12-14 09:39:51,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:39:51,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:39:51,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:51,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:39:51,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2022-12-14 09:39:51,749 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:51,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:51,792 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2022-12-14 09:39:51,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:39:51,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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 42 [2022-12-14 09:39:51,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:51,792 INFO L225 Difference]: With dead ends: 102 [2022-12-14 09:39:51,792 INFO L226 Difference]: Without dead ends: 56 [2022-12-14 09:39:51,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 97 SyntacticMatches, 10 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2022-12-14 09:39:51,793 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 7 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:51,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 97 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:39:51,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-14 09:39:51,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-12-14 09:39:51,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 55 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:51,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2022-12-14 09:39:51,802 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 42 [2022-12-14 09:39:51,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:51,802 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2022-12-14 09:39:51,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:51,802 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2022-12-14 09:39:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 09:39:51,803 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:51,803 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:51,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 09:39:52,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 09:39:52,005 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:52,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:52,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1909901250, now seen corresponding path program 2 times [2022-12-14 09:39:52,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:52,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564435036] [2022-12-14 09:39:52,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:52,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:52,089 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 09:39:52,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:52,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564435036] [2022-12-14 09:39:52,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564435036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:52,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:39:52,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:39:52,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703227902] [2022-12-14 09:39:52,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:52,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:39:52,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:52,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:39:52,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:39:52,091 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:52,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:52,157 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2022-12-14 09:39:52,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:39:52,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 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 46 [2022-12-14 09:39:52,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:52,158 INFO L225 Difference]: With dead ends: 66 [2022-12-14 09:39:52,158 INFO L226 Difference]: Without dead ends: 65 [2022-12-14 09:39:52,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:39:52,159 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:52,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 50 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:39:52,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-12-14 09:39:52,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2022-12-14 09:39:52,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 54 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:52,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2022-12-14 09:39:52,173 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 46 [2022-12-14 09:39:52,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:52,174 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2022-12-14 09:39:52,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:52,174 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2022-12-14 09:39:52,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 09:39:52,174 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:39:52,175 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:39:52,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:39:52,175 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-12-14 09:39:52,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:39:52,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1909962211, now seen corresponding path program 1 times [2022-12-14 09:39:52,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:39:52,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061327872] [2022-12-14 09:39:52,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:52,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:39:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:52,333 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 09:39:52,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:39:52,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061327872] [2022-12-14 09:39:52,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061327872] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:39:52,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507703494] [2022-12-14 09:39:52,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:39:52,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:52,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:39:52,334 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:39:52,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 09:39:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:39:52,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 09:39:52,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:39:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 09:39:52,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:39:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 09:39:52,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507703494] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:39:52,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1391942809] [2022-12-14 09:39:52,502 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-12-14 09:39:52,502 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:39:52,502 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:39:52,502 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:39:52,503 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:39:52,534 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:39:52,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 09:39:52,555 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:39:52,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-12-14 09:39:52,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:52,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:52,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-12-14 09:39:52,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:52,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:52,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:52,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-12-14 09:39:52,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:52,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-12-14 09:39:52,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:52,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 09:39:52,664 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-12-14 09:39:52,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 09:39:52,703 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 09:39:52,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 09:39:52,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:52,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:52,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:52,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-12-14 09:39:52,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:52,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:52,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:52,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:52,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:52,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2022-12-14 09:39:52,962 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-12-14 09:39:52,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-12-14 09:39:52,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 09:39:53,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:53,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:53,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:53,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-12-14 09:39:53,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:53,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:53,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-12-14 09:39:53,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:39:53,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-12-14 09:39:53,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:39:53,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-12-14 09:39:53,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:53,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:53,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:53,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:53,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:53,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:53,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:53,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:39:53,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:39:54,082 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-12-14 09:39:54,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-12-14 09:39:54,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 09:39:54,126 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:39:56,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1391942809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:39:56,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:39:56,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [7, 6, 6] total 23 [2022-12-14 09:39:56,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749421660] [2022-12-14 09:39:56,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:39:56,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 09:39:56,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:39:56,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 09:39:56,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-12-14 09:39:56,838 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:58,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:39:58,478 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2022-12-14 09:39:58,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 09:39:58,478 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 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 46 [2022-12-14 09:39:58,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:39:58,478 INFO L225 Difference]: With dead ends: 55 [2022-12-14 09:39:58,478 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 09:39:58,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 106 SyntacticMatches, 15 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 09:39:58,479 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:39:58,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 09:39:58,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 09:39:58,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 09:39:58,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 09:39:58,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2022-12-14 09:39:58,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:39:58,480 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 09:39:58,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:39:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 09:39:58,480 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 09:39:58,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-12-14 09:39:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-12-14 09:39:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-12-14 09:39:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-12-14 09:39:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-12-14 09:39:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-12-14 09:39:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-12-14 09:39:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-12-14 09:39:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-12-14 09:39:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-12-14 09:39:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-12-14 09:39:58,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-12-14 09:39:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-12-14 09:39:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-12-14 09:39:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-12-14 09:39:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-12-14 09:39:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-12-14 09:39:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-12-14 09:39:58,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 09:39:58,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:39:58,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 09:40:01,878 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 618) no Hoare annotation was computed. [2022-12-14 09:40:01,878 INFO L902 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: true [2022-12-14 09:40:01,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 602) no Hoare annotation was computed. [2022-12-14 09:40:01,879 INFO L899 garLoopResultBuilder]: For program point L622(line 622) no Hoare annotation was computed. [2022-12-14 09:40:01,879 INFO L899 garLoopResultBuilder]: For program point L622-4(line 622) no Hoare annotation was computed. [2022-12-14 09:40:01,879 INFO L899 garLoopResultBuilder]: For program point L622-5(line 622) no Hoare annotation was computed. [2022-12-14 09:40:01,879 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 613 632) the Hoare annotation is: true [2022-12-14 09:40:01,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 609) no Hoare annotation was computed. [2022-12-14 09:40:01,879 INFO L895 garLoopResultBuilder]: At program point L622-6(lines 622 627) the Hoare annotation is: (and (= |ULTIMATE.start_main_~s~0#1.base| |ULTIMATE.start_sll_create_#res#1.base|) (= |ULTIMATE.start_sll_create_~head~0#1.base| |ULTIMATE.start_sll_create_#res#1.base|) (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (let ((.cse0 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse1 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse2 (= |#NULL.offset| 0))) (or (and (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_sll_create_~head~0#1.base| 0) .cse0 .cse1 .cse2))) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= |ULTIMATE.start_sll_create_~len#1| 0) (<= 1 |ULTIMATE.start_sll_create_~data#1|) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_create_~len#1|) (= |ULTIMATE.start_sll_create_#res#1.offset| |ULTIMATE.start_sll_create_~head~0#1.offset|) (= |ULTIMATE.start_sll_create_#res#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= 0 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|) (= |#NULL.base| 0)) [2022-12-14 09:40:01,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 585) no Hoare annotation was computed. [2022-12-14 09:40:01,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 622) no Hoare annotation was computed. [2022-12-14 09:40:01,879 INFO L899 garLoopResultBuilder]: For program point L623(line 623) no Hoare annotation was computed. [2022-12-14 09:40:01,879 INFO L899 garLoopResultBuilder]: For program point L623-1(line 623) no Hoare annotation was computed. [2022-12-14 09:40:01,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 618) no Hoare annotation was computed. [2022-12-14 09:40:01,879 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 585) no Hoare annotation was computed. [2022-12-14 09:40:01,880 INFO L895 garLoopResultBuilder]: At program point L607-2(lines 607 610) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_sll_update_at_~index#1| 1)) (= |ULTIMATE.start_main_~s~0#1.base| |ULTIMATE.start_sll_create_#res#1.base|) (<= |ULTIMATE.start_sll_update_at_#in~data#1| 3) (= |ULTIMATE.start_sll_create_~head~0#1.base| |ULTIMATE.start_sll_create_#res#1.base|) (<= 0 |ULTIMATE.start_sll_update_at_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (<= 0 |ULTIMATE.start_sll_update_at_#in~index#1|) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) (let ((.cse0 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse1 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse2 (= |#NULL.offset| 0))) (or (and (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_sll_create_~head~0#1.base| 0) .cse0 .cse1 .cse2))) (<= |ULTIMATE.start_sll_create_~len#1| 0) (<= 2 |ULTIMATE.start_sll_update_at_~data#1|) (<= 1 |ULTIMATE.start_sll_create_~data#1|) (<= |ULTIMATE.start_sll_update_at_~data#1| 3) (<= |ULTIMATE.start_sll_update_at_~index#1| 1) (<= |ULTIMATE.start_sll_update_at_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= 2 (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|)) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_create_~len#1|) (= |ULTIMATE.start_sll_create_#res#1.offset| |ULTIMATE.start_sll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_sll_update_at_#in~data#1|) (= |ULTIMATE.start_sll_create_#res#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_sll_update_at_#in~index#1| 1) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= |ULTIMATE.start_main_~new_data~0#1| 3) (<= 0 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|) (= |#NULL.base| 0)) [2022-12-14 09:40:01,880 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 622) no Hoare annotation was computed. [2022-12-14 09:40:01,880 INFO L895 garLoopResultBuilder]: At program point L624(lines 624 626) the Hoare annotation is: (and (= |ULTIMATE.start_main_~s~0#1.base| |ULTIMATE.start_sll_create_#res#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_sll_get_data_at_~head#1.base|) |ULTIMATE.start_sll_get_data_at_~head#1.offset|) |ULTIMATE.start_sll_get_data_at_#res#1|) (= |ULTIMATE.start_sll_create_~head~0#1.base| |ULTIMATE.start_sll_create_#res#1.base|) (= |ULTIMATE.start_sll_get_data_at_#res#1| |ULTIMATE.start_main_#t~ret15#1|) (<= 0 (+ |ULTIMATE.start_main_#t~ret15#1| 2147483648)) (let ((.cse0 (= |ULTIMATE.start_sll_get_data_at_#in~index#1| |ULTIMATE.start_main_~i~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_sll_create_#in~data#1|)) (.cse2 (<= |ULTIMATE.start_sll_create_#in~data#1| 1)) (.cse3 (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|)) (.cse5 (<= |ULTIMATE.start_sll_create_~len#1| 0)) (.cse6 (<= 1 |ULTIMATE.start_sll_create_~data#1|)) (.cse7 (<= |ULTIMATE.start_sll_create_~data#1| 1)) (.cse8 (= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|)) (.cse9 (= |ULTIMATE.start_sll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|)) (.cse10 (<= |ULTIMATE.start_main_~s~0#1.offset| 0))) (or (let ((.cse4 (+ |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| 4))) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_sll_get_data_at_~head#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_get_data_at_#in~head#1.base|) .cse4)) .cse5 (= |ULTIMATE.start_sll_get_data_at_#in~index#1| (+ |ULTIMATE.start_sll_get_data_at_~index#1| 1)) .cse6 (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_get_data_at_#in~head#1.base|) .cse4) |ULTIMATE.start_sll_get_data_at_~head#1.base|) .cse7 .cse8 .cse9 (< 0 |ULTIMATE.start_sll_get_data_at_#in~index#1|) .cse10)) (and (= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| |ULTIMATE.start_sll_get_data_at_~head#1.offset|) .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse7 .cse8 .cse9 (= |ULTIMATE.start_sll_get_data_at_#in~index#1| |ULTIMATE.start_sll_get_data_at_~index#1|) (= |ULTIMATE.start_sll_get_data_at_#in~head#1.base| |ULTIMATE.start_sll_get_data_at_~head#1.base|) .cse10))) (<= |ULTIMATE.start_main_#t~ret15#1| 2147483647) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_create_~len#1|) (= |ULTIMATE.start_sll_create_#res#1.offset| |ULTIMATE.start_sll_create_~head~0#1.offset|) (let ((.cse11 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse12 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse13 (= |#NULL.offset| 0)) (.cse14 (= |#NULL.base| 0))) (or (and (= |ULTIMATE.start_sll_create_~head~0#1.base| 0) .cse11 .cse12 .cse13 .cse14) (and (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) .cse11 .cse12 .cse13 .cse14))) (= |ULTIMATE.start_sll_create_#res#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (< 0 |ULTIMATE.start_sll_get_data_at_~index#1|)) (<= 0 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|)) [2022-12-14 09:40:01,880 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 618) no Hoare annotation was computed. [2022-12-14 09:40:01,880 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 09:40:01,880 INFO L895 garLoopResultBuilder]: At program point L600-2(lines 600 603) the Hoare annotation is: (let ((.cse4 (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|))) (and (= |ULTIMATE.start_main_~s~0#1.base| |ULTIMATE.start_sll_create_#res#1.base|) (= |ULTIMATE.start_sll_create_~head~0#1.base| |ULTIMATE.start_sll_create_#res#1.base|) (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_create_~len#1| 0) (let ((.cse0 (= |ULTIMATE.start_sll_get_data_at_#in~index#1| |ULTIMATE.start_main_~i~0#1|)) (.cse1 (= .cse4 |ULTIMATE.start_main_~expected~0#1|)) (.cse3 (= |ULTIMATE.start_sll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|))) (or (let ((.cse2 (+ |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| 4))) (and .cse0 .cse1 (= |ULTIMATE.start_sll_get_data_at_~head#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_get_data_at_#in~head#1.base|) .cse2)) (= |ULTIMATE.start_sll_get_data_at_#in~index#1| (+ |ULTIMATE.start_sll_get_data_at_~index#1| 1)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_get_data_at_#in~head#1.base|) .cse2) |ULTIMATE.start_sll_get_data_at_~head#1.base|) .cse3 (< 0 |ULTIMATE.start_sll_get_data_at_#in~index#1|))) (and (= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| |ULTIMATE.start_sll_get_data_at_~head#1.offset|) .cse0 .cse1 .cse3 (= |ULTIMATE.start_sll_get_data_at_#in~index#1| |ULTIMATE.start_sll_get_data_at_~index#1|) (= |ULTIMATE.start_sll_get_data_at_#in~head#1.base| |ULTIMATE.start_sll_get_data_at_~head#1.base|)))) (<= 1 |ULTIMATE.start_sll_create_~data#1|) (<= 0 |ULTIMATE.start_sll_get_data_at_#in~head#1.offset|) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= 2 .cse4) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_create_~len#1|) (= |ULTIMATE.start_sll_create_#res#1.offset| |ULTIMATE.start_sll_create_~head~0#1.offset|) (let ((.cse5 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse6 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse7 (= |#NULL.offset| 0)) (.cse8 (= |#NULL.base| 0))) (or (and (= |ULTIMATE.start_sll_create_~head~0#1.base| 0) .cse5 .cse6 .cse7 .cse8) (and (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) .cse5 .cse6 .cse7 .cse8))) (= |ULTIMATE.start_sll_create_#res#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= |ULTIMATE.start_sll_get_data_at_#in~index#1| 1) (<= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| 0) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|))) [2022-12-14 09:40:01,880 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 622) no Hoare annotation was computed. [2022-12-14 09:40:01,880 INFO L899 garLoopResultBuilder]: For program point L609(line 609) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L895 garLoopResultBuilder]: At program point L576(lines 576 578) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) (<= 1 |ULTIMATE.start_sll_create_~len#1|) (let ((.cse0 (<= 1 |ULTIMATE.start_node_create_~data#1|)) (.cse1 (<= |ULTIMATE.start_node_create_~data#1| 1))) (or (and .cse0 (<= 0 |ULTIMATE.start_sll_create_~head~0#1.base|) (<= |ULTIMATE.start_sll_create_~head~0#1.base| 0) .cse1) (and .cse0 (<= 0 |ULTIMATE.start_sll_create_~new_head~0#1.offset|) (<= |ULTIMATE.start_sll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_sll_create_~len#1| 1) .cse1))) (<= 1 |ULTIMATE.start_sll_create_~data#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (= |ULTIMATE.start_sll_create_~data#1| |ULTIMATE.start_node_create_#in~data#1|) (let ((.cse14 (select |#memory_int| 1))) (let ((.cse2 (= (select |#valid| |ULTIMATE.start_node_create_~temp~0#1.base|) 1)) (.cse3 (= 8 (select |#length| |ULTIMATE.start_node_create_~temp~0#1.base|))) (.cse4 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 1) 1)) (.cse6 (= (select |#valid| 0) 0)) (.cse7 (= (select |#valid| 2) 1)) (.cse8 (< |ULTIMATE.start_node_create_~temp~0#1.base| |#StackHeapBarrier|)) (.cse9 (= (select .cse14 0) 48)) (.cse10 (= 27 (select |#length| 2))) (.cse11 (= (select .cse14 1) 0)) (.cse12 (< 0 |#StackHeapBarrier|))) (or (and .cse2 .cse3 (= |ULTIMATE.start_sll_create_~len#1| |ULTIMATE.start_sll_create_#in~len#1|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (let ((.cse13 (+ 4 |ULTIMATE.start_sll_create_~new_head~0#1.offset|))) (and .cse2 .cse3 (= |ULTIMATE.start_sll_create_~data#1| (select (select |#memory_int| |ULTIMATE.start_sll_create_~new_head~0#1.base|) 0)) .cse4 (not (= |ULTIMATE.start_node_create_~temp~0#1.base| |ULTIMATE.start_sll_create_~new_head~0#1.base|)) (= |ULTIMATE.start_sll_create_~head~0#1.base| |ULTIMATE.start_sll_create_~new_head~0#1.base|) (= (select |#length| |ULTIMATE.start_sll_create_~new_head~0#1.base|) 8) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_~new_head~0#1.base|) .cse13) 0) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (= (select |#valid| |ULTIMATE.start_sll_create_~new_head~0#1.base|) 1) .cse11 (< |ULTIMATE.start_sll_create_~new_head~0#1.base| |#StackHeapBarrier|) .cse12 (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_create_~new_head~0#1.base|) .cse13) 0)))))) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|) (= |#NULL.base| 0)) [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point L609-1(line 609) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L902 garLoopResultBuilder]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point L618(line 618) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 622) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point L618-1(line 618) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point L585-3(line 585) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point L585-4(line 585) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point L618-5(line 618) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L895 garLoopResultBuilder]: At program point L585-5(lines 585 589) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) (<= 1 |ULTIMATE.start_sll_create_~data#1|) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_create_~len#1|) (let ((.cse0 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse1 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse2 (= |#NULL.offset| 0)) (.cse3 (= |#NULL.base| 0))) (or (and (= |ULTIMATE.start_sll_create_~head~0#1.base| 0) .cse0 .cse1 .cse2 .cse3) (and (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) .cse0 .cse1 .cse2 .cse3))) (<= 0 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|) (<= |ULTIMATE.start_sll_create_~len#1| 2)) [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point L618-6(line 618) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L895 garLoopResultBuilder]: At program point L618-7(lines 618 621) the Hoare annotation is: (and (= |ULTIMATE.start_main_~s~0#1.base| |ULTIMATE.start_sll_create_#res#1.base|) (= |ULTIMATE.start_sll_create_~head~0#1.base| |ULTIMATE.start_sll_create_#res#1.base|) (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (let ((.cse0 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse1 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse2 (= |#NULL.offset| 0))) (or (and (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_sll_create_~head~0#1.base| 0) .cse0 .cse1 .cse2))) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= |ULTIMATE.start_sll_create_~len#1| 0) (<= 1 |ULTIMATE.start_sll_create_~data#1|) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_create_~len#1|) (= |ULTIMATE.start_sll_create_#res#1.offset| |ULTIMATE.start_sll_create_~head~0#1.offset|) (= |ULTIMATE.start_sll_create_#res#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= 0 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|) (= |#NULL.base| 0)) [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point L618-8(lines 618 621) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 619) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point L602-1(line 602) no Hoare annotation was computed. [2022-12-14 09:40:01,881 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-12-14 09:40:01,882 INFO L899 garLoopResultBuilder]: For program point L619(line 619) no Hoare annotation was computed. [2022-12-14 09:40:01,882 INFO L899 garLoopResultBuilder]: For program point L619-1(line 619) no Hoare annotation was computed. [2022-12-14 09:40:01,882 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 09:40:01,882 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 619) no Hoare annotation was computed. [2022-12-14 09:40:01,882 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-12-14 09:40:01,882 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 618) no Hoare annotation was computed. [2022-12-14 09:40:01,882 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 602) no Hoare annotation was computed. [2022-12-14 09:40:01,882 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 609) no Hoare annotation was computed. [2022-12-14 09:40:01,884 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:40:01,885 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:40:01,895 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 09:40:01,896 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 09:40:01,897 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 09:40:01,897 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 09:40:01,900 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 09:40:01,900 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 09:40:01,901 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 09:40:01,901 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 09:40:01,902 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 09:40:01,902 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 09:40:01,903 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 09:40:01,903 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 09:40:01,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:40:01 BoogieIcfgContainer [2022-12-14 09:40:01,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:40:01,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:40:01,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:40:01,907 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:40:01,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:39:15" (3/4) ... [2022-12-14 09:40:01,909 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 09:40:01,916 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2022-12-14 09:40:01,916 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-14 09:40:01,916 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 09:40:01,916 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 09:40:01,932 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((1 <= \old(data) && \old(data) <= 1) && head <= 0) && 1 <= data) && data <= 1) && \old(len) <= 2) && 0 <= len) && (((((head == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0) || ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0))) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && 0 <= head) && len <= 2 [2022-12-14 09:40:01,933 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((1 <= \old(data) && temp == 0) && \old(data) <= 1) && head <= 0) && 1 <= len) && ((((1 <= data && 0 <= head) && head <= 0) && data <= 1) || ((((1 <= data && 0 <= new_head) && new_head <= 0) && len <= 1) && data <= 1))) && 1 <= data) && data == 1) && data <= 1) && \old(len) <= 2) && len == 2) && #NULL == 0) && data == \old(data)) && ((((((((((((\valid[temp] == 1 && 8 == unknown-#length-unknown[temp]) && len == \old(len)) && 2 == unknown-#length-unknown[1]) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && temp < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[1][0] == 48) && 27 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) || ((((((((((((((((((\valid[temp] == 1 && 8 == unknown-#length-unknown[temp]) && data == unknown-#memory_int-unknown[new_head][0]) && 2 == unknown-#length-unknown[1]) && !(temp == new_head)) && head == new_head) && unknown-#length-unknown[new_head] == 8) && #memory_$Pointer$[new_head][4 + new_head] == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && temp < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[1][0] == 48) && 27 == unknown-#length-unknown[2]) && \valid[new_head] == 1) && unknown-#memory_int-unknown[1][1] == 0) && new_head < unknown-#StackHeapBarrier-unknown) && 0 < unknown-#StackHeapBarrier-unknown) && #memory_$Pointer$[new_head][4 + new_head] == 0))) && 2 <= \old(len)) && 0 <= head) && #NULL == 0 [2022-12-14 09:40:01,933 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((s == \result && head == \result) && 1 <= \old(data)) && \old(data) <= 1) && ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) || (((head == 0 && data == 1) && len == 2) && #NULL == 0))) && 0 <= i + 2147483648) && len <= 0) && 1 <= data) && data <= 1) && \old(len) <= 2) && 0 <= len) && \result == head) && \result == s) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= head) && #NULL == 0 [2022-12-14 09:40:01,933 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((s == \result && head == \result) && 1 <= \old(data)) && \old(data) <= 1) && ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) || (((head == 0 && data == 1) && len == 2) && #NULL == 0))) && 0 <= i + 2147483648) && len <= 0) && 1 <= data) && data <= 1) && \old(len) <= 2) && 0 <= len) && \result == head) && \result == s) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= head) && #NULL == 0 [2022-12-14 09:40:01,933 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((0 <= index + 1 && s == \result) && \old(data) <= 3) && head == \result) && 0 <= head) && 1 <= \old(data)) && 0 <= \old(index)) && \old(data) <= 1) && head <= 0) && ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) || (((head == 0 && data == 1) && len == 2) && #NULL == 0))) && len <= 0) && 2 <= data) && 1 <= data) && data <= 3) && index <= 1) && head <= 0) && data <= 1) && 2 <= len + i) && \old(len) <= 2) && 0 <= len) && \result == head) && 2 <= \old(data)) && \result == s) && \old(index) <= 1) && 2 <= new_data) && i <= 1) && new_data <= 3) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && 0 <= head) && #NULL == 0 [2022-12-14 09:40:01,933 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((s == \result && head == \result) && 1 <= \old(data)) && \old(data) <= 1) && len <= 0) && (((((((\old(index) == i && len + i == expected) && head == #memory_$Pointer$[head][head + 4]) && \old(index) == index + 1) && #memory_$Pointer$[head][head + 4] == head) && head == s) && 0 < \old(index)) || (((((head == head && \old(index) == i) && len + i == expected) && head == s) && \old(index) == index) && head == head))) && 1 <= data) && 0 <= head) && data <= 1) && 2 <= len + i) && \old(len) <= 2) && 0 <= len) && \result == head) && (((((head == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0) || ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0))) && \result == s) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && \old(index) <= 1) && head <= 0) && 0 <= head [2022-12-14 09:40:01,934 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((s == \result && unknown-#memory_int-unknown[head][head] == \result) && head == \result) && \result == aux-sll_get_data_at(s, i)-aux) && 0 <= aux-sll_get_data_at(s, i)-aux + 2147483648) && ((((((((((((((\old(index) == i && 1 <= \old(data)) && \old(data) <= 1) && len + i == expected) && head == #memory_$Pointer$[head][head + 4]) && len <= 0) && \old(index) == index + 1) && 1 <= data) && #memory_$Pointer$[head][head + 4] == head) && data <= 1) && head == s) && head == s) && 0 < \old(index)) && s <= 0) || (((((((((((((head == head && \old(index) == i) && 1 <= \old(data)) && \old(data) <= 1) && len + i == expected) && len <= 0) && 1 <= data) && 0 <= i) && data <= 1) && head == s) && head == s) && \old(index) == index) && head == head) && s <= 0))) && aux-sll_get_data_at(s, i)-aux <= 2147483647) && \old(len) <= 2) && 0 <= len) && \result == head) && (((((head == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0) || ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0))) && \result == s) && !(0 < index)) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && 0 <= head [2022-12-14 09:40:01,942 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:40:01,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:40:01,942 INFO L158 Benchmark]: Toolchain (without parser) took 46870.09ms. Allocated memory was 123.7MB in the beginning and 218.1MB in the end (delta: 94.4MB). Free memory was 87.2MB in the beginning and 78.5MB in the end (delta: 8.7MB). Peak memory consumption was 104.3MB. Max. memory is 16.1GB. [2022-12-14 09:40:01,942 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:40:01,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.17ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 70.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 09:40:01,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.16ms. Allocated memory is still 123.7MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:40:01,943 INFO L158 Benchmark]: Boogie Preprocessor took 19.02ms. Allocated memory is still 123.7MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:40:01,943 INFO L158 Benchmark]: RCFGBuilder took 369.83ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 66.2MB in the beginning and 118.7MB in the end (delta: -52.5MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-12-14 09:40:01,943 INFO L158 Benchmark]: TraceAbstraction took 46136.96ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 117.9MB in the beginning and 82.7MB in the end (delta: 35.3MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. [2022-12-14 09:40:01,943 INFO L158 Benchmark]: Witness Printer took 35.26ms. Allocated memory is still 218.1MB. Free memory was 82.7MB in the beginning and 78.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 09:40:01,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.17ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 70.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.16ms. Allocated memory is still 123.7MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.02ms. Allocated memory is still 123.7MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 369.83ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 66.2MB in the beginning and 118.7MB in the end (delta: -52.5MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * TraceAbstraction took 46136.96ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 117.9MB in the beginning and 82.7MB in the end (delta: 35.3MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. * Witness Printer took 35.26ms. Allocated memory is still 218.1MB. Free memory was 82.7MB in the beginning and 78.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * 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: 585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 618]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 618]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 618]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 618]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 623]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 623]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 602]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 602]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 622]: 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, 48 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 46.1s, OverallIterations: 19, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 976 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 976 mSDsluCounter, 1003 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 639 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1804 IncrementalHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 364 mSDtfsCounter, 1804 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 835 GetRequests, 524 SyntacticMatches, 91 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1410 ImplicationChecksByTransitivity, 22.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=17, InterpolantAutomatonStates: 149, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 143 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 30 NumberOfFragments, 938 HoareAnnotationTreeSize, 10 FomulaSimplifications, 121 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 10 FomulaSimplificationsInter, 137621 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 620 NumberOfCodeBlocks, 620 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 827 ConstructedInterpolants, 0 QuantifiedInterpolants, 1487 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1995 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 37 InterpolantComputations, 10 PerfectInterpolantSequences, 235/266 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 11.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 161, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 421, TOOLS_POST_TIME: 10.4s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 421, TOOLS_QUANTIFIERELIM_TIME: 10.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.5s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 728, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 49, DOMAIN_JOIN_TIME: 0.4s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 20, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 55, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 161, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 35, LOOP_SUMMARIZER_CACHE_MISSES: 35, LOOP_SUMMARIZER_OVERALL_TIME: 7.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 7.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 55, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 3390, DAG_COMPRESSION_RETAINED_NODES: 528, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((((((1 <= \old(data) && \old(data) <= 1) && head <= 0) && 1 <= data) && data <= 1) && \old(len) <= 2) && 0 <= len) && (((((head == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0) || ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0))) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && 0 <= head) && len <= 2 - InvariantResult [Line: 576]: Loop Invariant [2022-12-14 09:40:01,949 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 09:40:01,949 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 09:40:01,950 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 09:40:01,950 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: (((((((((((((((1 <= \old(data) && temp == 0) && \old(data) <= 1) && head <= 0) && 1 <= len) && ((((1 <= data && 0 <= head) && head <= 0) && data <= 1) || ((((1 <= data && 0 <= new_head) && new_head <= 0) && len <= 1) && data <= 1))) && 1 <= data) && data == 1) && data <= 1) && \old(len) <= 2) && len == 2) && #NULL == 0) && data == \old(data)) && ((((((((((((\valid[temp] == 1 && 8 == unknown-#length-unknown[temp]) && len == \old(len)) && 2 == unknown-#length-unknown[1]) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && temp < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[1][0] == 48) && 27 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) || ((((((((((((((((((\valid[temp] == 1 && 8 == unknown-#length-unknown[temp]) && data == unknown-#memory_int-unknown[new_head][0]) && 2 == unknown-#length-unknown[1]) && !(temp == new_head)) && head == new_head) && unknown-#length-unknown[new_head] == 8) && #memory_$Pointer$[new_head][4 + new_head] == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && temp < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[1][0] == 48) && 27 == unknown-#length-unknown[2]) && \valid[new_head] == 1) && unknown-#memory_int-unknown[1][1] == 0) && new_head < unknown-#StackHeapBarrier-unknown) && 0 < unknown-#StackHeapBarrier-unknown) && #memory_$Pointer$[new_head][4 + new_head] == 0))) && 2 <= \old(len)) && 0 <= head) && #NULL == 0 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: (((((((((((((((((s == \result && head == \result) && 1 <= \old(data)) && \old(data) <= 1) && ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) || (((head == 0 && data == 1) && len == 2) && #NULL == 0))) && 0 <= i + 2147483648) && len <= 0) && 1 <= data) && data <= 1) && \old(len) <= 2) && 0 <= len) && \result == head) && \result == s) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= head) && #NULL == 0 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 600]: Loop Invariant [2022-12-14 09:40:01,951 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 09:40:01,952 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 09:40:01,952 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 09:40:01,952 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: (((((((((((((((((((s == \result && head == \result) && 1 <= \old(data)) && \old(data) <= 1) && len <= 0) && (((((((\old(index) == i && len + i == expected) && head == #memory_$Pointer$[head][head + 4]) && \old(index) == index + 1) && #memory_$Pointer$[head][head + 4] == head) && head == s) && 0 < \old(index)) || (((((head == head && \old(index) == i) && len + i == expected) && head == s) && \old(index) == index) && head == head))) && 1 <= data) && 0 <= head) && data <= 1) && 2 <= len + i) && \old(len) <= 2) && 0 <= len) && \result == head) && (((((head == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0) || ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0))) && \result == s) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && \old(index) <= 1) && head <= 0) && 0 <= head - InvariantResult [Line: 624]: Loop Invariant [2022-12-14 09:40:01,953 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 09:40:01,953 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 09:40:01,954 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 09:40:01,954 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((((((((((((s == \result && unknown-#memory_int-unknown[head][head] == \result) && head == \result) && \result == aux-sll_get_data_at(s, i)-aux) && 0 <= aux-sll_get_data_at(s, i)-aux + 2147483648) && ((((((((((((((\old(index) == i && 1 <= \old(data)) && \old(data) <= 1) && len + i == expected) && head == #memory_$Pointer$[head][head + 4]) && len <= 0) && \old(index) == index + 1) && 1 <= data) && #memory_$Pointer$[head][head + 4] == head) && data <= 1) && head == s) && head == s) && 0 < \old(index)) && s <= 0) || (((((((((((((head == head && \old(index) == i) && 1 <= \old(data)) && \old(data) <= 1) && len + i == expected) && len <= 0) && 1 <= data) && 0 <= i) && data <= 1) && head == s) && head == s) && \old(index) == index) && head == head) && s <= 0))) && aux-sll_get_data_at(s, i)-aux <= 2147483647) && \old(len) <= 2) && 0 <= len) && \result == head) && (((((head == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0) || ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) && #NULL == 0))) && \result == s) && !(0 < index)) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && 0 <= head - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((0 <= index + 1 && s == \result) && \old(data) <= 3) && head == \result) && 0 <= head) && 1 <= \old(data)) && 0 <= \old(index)) && \old(data) <= 1) && head <= 0) && ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) || (((head == 0 && data == 1) && len == 2) && #NULL == 0))) && len <= 0) && 2 <= data) && 1 <= data) && data <= 3) && index <= 1) && head <= 0) && data <= 1) && 2 <= len + i) && \old(len) <= 2) && 0 <= len) && \result == head) && 2 <= \old(data)) && \result == s) && \old(index) <= 1) && 2 <= new_data) && i <= 1) && new_data <= 3) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && 0 <= head) && #NULL == 0 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: (((((((((((((((((s == \result && head == \result) && 1 <= \old(data)) && \old(data) <= 1) && ((((temp == 0 && data == 1) && len == 2) && #NULL == 0) || (((head == 0 && data == 1) && len == 2) && #NULL == 0))) && 0 <= i + 2147483648) && len <= 0) && 1 <= data) && data <= 1) && \old(len) <= 2) && 0 <= len) && \result == head) && \result == s) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= head) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 09:40:01,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_992e8f66-767f-4bcf-9096-eee065db419b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE