./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/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_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/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_7793d066-e605-4bf1-8b8a-068b04c80674/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 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 --- 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 10:31:26,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:31:26,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:31:26,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:31:26,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:31:26,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:31:26,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:31:26,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:31:26,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:31:26,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:31:26,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:31:26,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:31:26,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:31:26,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:31:26,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:31:26,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:31:26,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:31:26,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:31:26,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:31:26,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:31:26,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:31:26,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:31:26,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:31:26,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:31:26,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:31:26,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:31:26,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:31:26,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:31:26,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:31:26,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:31:26,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:31:26,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:31:26,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:31:26,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:31:26,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:31:26,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:31:26,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:31:26,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:31:26,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:31:26,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:31:26,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:31:26,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 10:31:26,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:31:26,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:31:26,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:31:26,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:31:26,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:31:26,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:31:26,246 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:31:26,247 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:31:26,247 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:31:26,247 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:31:26,247 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:31:26,247 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:31:26,247 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:31:26,247 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:31:26,248 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:31:26,248 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:31:26,248 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:31:26,248 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:31:26,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:31:26,249 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:31:26,249 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:31:26,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:31:26,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:31:26,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:31:26,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:31:26,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:31:26,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:31:26,250 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:31:26,250 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:31:26,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:31:26,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:31:26,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:31:26,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:31:26,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:31:26,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:31:26,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:31:26,252 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:31:26,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:31:26,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:31:26,252 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:31:26,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:31:26,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:31:26,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:31:26,253 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_7793d066-e605-4bf1-8b8a-068b04c80674/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 [2022-12-14 10:31:26,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:31:26,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:31:26,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:31:26,484 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:31:26,484 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:31:26,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2022-12-14 10:31:29,081 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:31:29,231 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:31:29,231 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2022-12-14 10:31:29,238 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/data/4132ced90/7b53f35dc7a84359bb70cef770fef8f8/FLAG29ae1ee72 [2022-12-14 10:31:29,250 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/data/4132ced90/7b53f35dc7a84359bb70cef770fef8f8 [2022-12-14 10:31:29,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:31:29,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:31:29,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:31:29,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:31:29,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:31:29,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3208d098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29, skipping insertion in model container [2022-12-14 10:31:29,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:31:29,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:31:29,509 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_7793d066-e605-4bf1-8b8a-068b04c80674/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i[24275,24288] [2022-12-14 10:31:29,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:31:29,519 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:31:29,555 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_7793d066-e605-4bf1-8b8a-068b04c80674/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i[24275,24288] [2022-12-14 10:31:29,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:31:29,574 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:31:29,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29 WrapperNode [2022-12-14 10:31:29,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:31:29,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:31:29,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:31:29,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:31:29,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,609 INFO L138 Inliner]: procedures = 126, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 101 [2022-12-14 10:31:29,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:31:29,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:31:29,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:31:29,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:31:29,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,632 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:31:29,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:31:29,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:31:29,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:31:29,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (1/1) ... [2022-12-14 10:31:29,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:31:29,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:31:29,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:31:29,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:31:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-12-14 10:31:29,697 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-12-14 10:31:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:31:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:31:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:31:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:31:29,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 10:31:29,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 10:31:29,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:31:29,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 10:31:29,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:31:29,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:31:29,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:31:29,788 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:31:29,791 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:31:29,817 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-12-14 10:31:29,964 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:31:30,010 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:31:30,010 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 10:31:30,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:31:30 BoogieIcfgContainer [2022-12-14 10:31:30,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:31:30,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:31:30,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:31:30,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:31:30,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:31:29" (1/3) ... [2022-12-14 10:31:30,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8c2cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:31:30, skipping insertion in model container [2022-12-14 10:31:30,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:31:29" (2/3) ... [2022-12-14 10:31:30,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8c2cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:31:30, skipping insertion in model container [2022-12-14 10:31:30,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:31:30" (3/3) ... [2022-12-14 10:31:30,022 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_remove_all_reverse.i [2022-12-14 10:31:30,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:31:30,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 10:31:30,084 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:31:30,090 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;@2357148e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:31:30,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 10:31:30,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:30,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 10:31:30,101 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:30,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 10:31:30,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:31:30,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:30,106 INFO L85 PathProgramCache]: Analyzing trace with hash 129281, now seen corresponding path program 1 times [2022-12-14 10:31:30,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:30,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038902887] [2022-12-14 10:31:30,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:30,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:30,304 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 10:31:30,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:30,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038902887] [2022-12-14 10:31:30,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038902887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:30,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:31:30,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:31:30,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65654644] [2022-12-14 10:31:30,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:30,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:31:30,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:30,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:31:30,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:31:30,345 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 10:31:30,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:30,392 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2022-12-14 10:31:30,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:31:30,395 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 10:31:30,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:30,401 INFO L225 Difference]: With dead ends: 49 [2022-12-14 10:31:30,401 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 10:31:30,404 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 10:31:30,407 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:30,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 47 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:31:30,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 10:31:30,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2022-12-14 10:31:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 22 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 10:31:30,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-12-14 10:31:30,441 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 3 [2022-12-14 10:31:30,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:30,441 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-12-14 10:31:30,441 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 10:31:30,442 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-12-14 10:31:30,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:31:30,442 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:30,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:31:30,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:31:30,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:31:30,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:30,443 INFO L85 PathProgramCache]: Analyzing trace with hash 121482522, now seen corresponding path program 1 times [2022-12-14 10:31:30,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:30,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431231318] [2022-12-14 10:31:30,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:30,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:30,604 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 10:31:30,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:30,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431231318] [2022-12-14 10:31:30,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431231318] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:30,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:31:30,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:31:30,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290032171] [2022-12-14 10:31:30,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:30,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:31:30,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:30,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:31:30,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:31:30,608 INFO L87 Difference]: Start difference. First operand 23 states and 26 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 10:31:30,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:30,662 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-12-14 10:31:30,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:31:30,663 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 10:31:30,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:30,663 INFO L225 Difference]: With dead ends: 29 [2022-12-14 10:31:30,664 INFO L226 Difference]: Without dead ends: 28 [2022-12-14 10:31:30,664 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 10:31:30,665 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 52 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 10:31:30,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 52 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:31:30,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-14 10:31:30,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2022-12-14 10:31:30,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 25 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 10:31:30,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-12-14 10:31:30,670 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 5 [2022-12-14 10:31:30,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:30,671 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-12-14 10:31:30,671 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 10:31:30,671 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-12-14 10:31:30,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 10:31:30,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:30,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 10:31:30,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:31:30,672 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:31:30,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:30,672 INFO L85 PathProgramCache]: Analyzing trace with hash -529009049, now seen corresponding path program 1 times [2022-12-14 10:31:30,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:30,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642494540] [2022-12-14 10:31:30,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:30,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:30,778 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 10:31:30,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:30,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642494540] [2022-12-14 10:31:30,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642494540] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:30,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:31:30,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:31:30,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125649919] [2022-12-14 10:31:30,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:30,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:31:30,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:30,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:31:30,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:31:30,781 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:30,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:30,833 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-12-14 10:31:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:31:30,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 10:31:30,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:30,834 INFO L225 Difference]: With dead ends: 28 [2022-12-14 10:31:30,834 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 10:31:30,835 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 10:31:30,836 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:30,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 53 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:31:30,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 10:31:30,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-14 10:31:30,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 26 states have internal predecessors, (30), 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 10:31:30,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-12-14 10:31:30,840 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 6 [2022-12-14 10:31:30,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:30,840 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-12-14 10:31:30,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:30,841 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-12-14 10:31:30,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 10:31:30,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:30,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:31:30,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:31:30,841 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:31:30,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:30,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1571550810, now seen corresponding path program 1 times [2022-12-14 10:31:30,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:30,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374239281] [2022-12-14 10:31:30,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:30,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:30,941 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 10:31:30,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:30,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374239281] [2022-12-14 10:31:30,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374239281] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:31:30,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303502098] [2022-12-14 10:31:30,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:30,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:31:30,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:31:30,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:31:30,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:31:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:31,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 10:31:31,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:31:31,045 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 10:31:31,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:31:31,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303502098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:31,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:31:31,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [2] total 2 [2022-12-14 10:31:31,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168245700] [2022-12-14 10:31:31,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:31,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:31:31,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:31,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:31:31,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:31:31,048 INFO L87 Difference]: Start difference. First operand 27 states and 30 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 10:31:31,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:31,063 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-12-14 10:31:31,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:31:31,064 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 10:31:31,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:31,064 INFO L225 Difference]: With dead ends: 27 [2022-12-14 10:31:31,065 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 10:31:31,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:31:31,066 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:31,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 17 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:31:31,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 10:31:31,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-12-14 10:31:31,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.380952380952381) internal successors, (29), 25 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 10:31:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-12-14 10:31:31,069 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 8 [2022-12-14 10:31:31,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:31,069 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-12-14 10:31:31,069 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 10:31:31,069 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-12-14 10:31:31,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 10:31:31,070 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:31,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:31:31,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:31:31,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:31:31,272 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:31:31,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:31,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1473434779, now seen corresponding path program 1 times [2022-12-14 10:31:31,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:31,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135186302] [2022-12-14 10:31:31,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:31,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:31,441 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 10:31:31,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:31,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135186302] [2022-12-14 10:31:31,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135186302] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:31:31,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207515682] [2022-12-14 10:31:31,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:31,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:31:31,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:31:31,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:31:31,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:31:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:31,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 10:31:31,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:31:31,527 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 10:31:31,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:31:31,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207515682] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:31,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:31:31,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [2] total 2 [2022-12-14 10:31:31,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803483524] [2022-12-14 10:31:31,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:31,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:31:31,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:31,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:31:31,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:31:31,529 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:31,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:31,544 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-12-14 10:31:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:31:31,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 10:31:31,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:31,545 INFO L225 Difference]: With dead ends: 26 [2022-12-14 10:31:31,545 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 10:31:31,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:31:31,547 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:31,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 17 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:31:31,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 10:31:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-14 10:31:31,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 24 states have internal predecessors, (28), 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 10:31:31,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-12-14 10:31:31,550 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2022-12-14 10:31:31,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:31,550 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-12-14 10:31:31,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:31,550 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-12-14 10:31:31,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 10:31:31,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:31,550 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-14 10:31:31,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:31:31,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:31:31,752 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:31:31,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:31,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1565403263, now seen corresponding path program 1 times [2022-12-14 10:31:31,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:31,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301813865] [2022-12-14 10:31:31,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:31,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:31,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:31:31,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:31,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301813865] [2022-12-14 10:31:31,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301813865] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:31,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:31:31,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:31:31,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84215148] [2022-12-14 10:31:31,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:31,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:31:31,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:31,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:31:31,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:31:31,832 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 10:31:31,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:31,875 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-12-14 10:31:31,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:31:31,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 10:31:31,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:31,877 INFO L225 Difference]: With dead ends: 25 [2022-12-14 10:31:31,877 INFO L226 Difference]: Without dead ends: 24 [2022-12-14 10:31:31,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:31:31,878 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:31,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 41 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:31:31,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-14 10:31:31,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-14 10:31:31,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:31,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-12-14 10:31:31,883 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 10 [2022-12-14 10:31:31,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:31,883 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-12-14 10:31:31,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 10:31:31,883 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-12-14 10:31:31,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:31:31,884 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:31,884 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1] [2022-12-14 10:31:31,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:31:31,884 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:31:31,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:31,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1282860962, now seen corresponding path program 1 times [2022-12-14 10:31:31,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:31,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417816520] [2022-12-14 10:31:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:31,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:31:31,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:31,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417816520] [2022-12-14 10:31:31,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417816520] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:31:31,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765031331] [2022-12-14 10:31:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:31,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:31:31,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:31:31,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:31:31,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:31:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:32,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 10:31:32,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:31:32,125 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:31:32,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:31:32,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765031331] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:32,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:31:32,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-12-14 10:31:32,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318587904] [2022-12-14 10:31:32,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:32,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:31:32,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:32,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:31:32,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:31:32,127 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:32,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:32,182 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-12-14 10:31:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:31:32,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 10:31:32,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:32,183 INFO L225 Difference]: With dead ends: 24 [2022-12-14 10:31:32,183 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 10:31:32,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:31:32,184 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 19 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:32,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 46 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:31:32,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 10:31:32,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2022-12-14 10:31:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-12-14 10:31:32,188 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 11 [2022-12-14 10:31:32,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:32,188 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-12-14 10:31:32,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:32,188 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-12-14 10:31:32,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 10:31:32,189 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:32,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:31:32,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 10:31:32,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 10:31:32,391 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:31:32,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:32,392 INFO L85 PathProgramCache]: Analyzing trace with hash 760610389, now seen corresponding path program 1 times [2022-12-14 10:31:32,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:32,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377459903] [2022-12-14 10:31:32,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:32,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:32,551 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 10:31:32,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:32,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377459903] [2022-12-14 10:31:32,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377459903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:32,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:31:32,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:31:32,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112965911] [2022-12-14 10:31:32,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:32,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:31:32,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:32,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:31:32,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:31:32,553 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 10:31:32,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:32,590 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2022-12-14 10:31:32,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:31:32,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 10:31:32,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:32,590 INFO L225 Difference]: With dead ends: 19 [2022-12-14 10:31:32,590 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 10:31:32,591 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 10:31:32,591 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:32,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 31 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:31:32,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 10:31:32,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-14 10:31:32,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-12-14 10:31:32,593 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2022-12-14 10:31:32,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:32,594 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-12-14 10:31:32,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 10:31:32,594 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-12-14 10:31:32,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 10:31:32,594 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:32,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:31:32,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:31:32,595 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:31:32,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:32,595 INFO L85 PathProgramCache]: Analyzing trace with hash 2104085689, now seen corresponding path program 1 times [2022-12-14 10:31:32,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:32,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824999797] [2022-12-14 10:31:32,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:32,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:32,649 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 10:31:32,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:32,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824999797] [2022-12-14 10:31:32,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824999797] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:31:32,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867228285] [2022-12-14 10:31:32,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:32,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:31:32,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:31:32,651 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:31:32,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:31:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:32,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 10:31:32,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:31:32,758 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 10:31:32,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:31:32,777 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 10:31:32,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867228285] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:31:32,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1932393436] [2022-12-14 10:31:32,791 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 10:31:32,791 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:31:32,793 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:31:32,797 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:31:32,798 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:31:32,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:32,863 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 10:31:32,864 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 10:31:32,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:32,877 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 10:31:32,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:32,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:32,921 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 10:31:32,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 10:31:32,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:32,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:32,961 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 10:31:32,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 10:31:33,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 10:31:33,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 10:31:33,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,046 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 37 treesize of output 28 [2022-12-14 10:31:33,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 10:31:33,226 INFO L321 Elim1Store]: treesize reduction 124, result has 24.8 percent of original size [2022-12-14 10:31:33,227 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 280 treesize of output 304 [2022-12-14 10:31:33,271 INFO L321 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2022-12-14 10:31:33,272 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 7 case distinctions, treesize of input 273 treesize of output 282 [2022-12-14 10:31:33,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,632 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 10:31:33,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 281 treesize of output 267 [2022-12-14 10:31:33,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,691 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 10:31:33,692 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 3 case distinctions, treesize of input 285 treesize of output 270 [2022-12-14 10:31:33,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 274 treesize of output 265 [2022-12-14 10:31:33,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 274 treesize of output 265 [2022-12-14 10:31:33,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:33,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:33,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:33,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:33,823 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-12-14 10:31:33,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 444 [2022-12-14 10:31:33,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:33,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:33,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:33,892 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-12-14 10:31:33,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 408 treesize of output 432 [2022-12-14 10:31:33,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:33,961 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 10:31:33,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 413 treesize of output 368 [2022-12-14 10:31:34,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,198 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 0 case distinctions, treesize of input 429 treesize of output 384 [2022-12-14 10:31:34,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 364 treesize of output 360 [2022-12-14 10:31:34,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 10:31:34,275 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 10:31:34,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 492 treesize of output 433 [2022-12-14 10:31:34,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 315 [2022-12-14 10:31:34,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 392 treesize of output 324 [2022-12-14 10:31:34,550 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 10:31:34,554 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 10:31:34,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:34,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:34,637 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 10:31:34,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-12-14 10:31:34,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:34,699 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 10:31:34,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-12-14 10:31:34,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 10:31:34,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 10:31:34,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 10:31:34,796 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 10:31:34,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 10:31:34,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 10:31:34,831 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 10:31:34,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 142 treesize of output 101 [2022-12-14 10:31:34,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:34,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-12-14 10:31:35,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,060 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:31:35,060 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 2 case distinctions, treesize of input 63 treesize of output 49 [2022-12-14 10:31:35,081 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 10:31:35,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2022-12-14 10:31:35,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 10:31:35,096 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 10:31:35,140 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 10:31:35,145 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 10:31:35,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:35,224 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 10:31:35,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-12-14 10:31:35,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:35,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:35,276 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 10:31:35,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-12-14 10:31:35,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 10:31:35,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 10:31:35,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 10:31:35,367 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 10:31:35,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 10:31:35,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 10:31:35,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 65 [2022-12-14 10:31:35,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:35,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-12-14 10:31:35,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-12-14 10:31:35,543 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:31:36,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1932393436] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:36,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:31:36,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 14 [2022-12-14 10:31:36,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738714763] [2022-12-14 10:31:36,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:36,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:31:36,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:36,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:31:36,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=161, Unknown=2, NotChecked=0, Total=210 [2022-12-14 10:31:36,983 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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 10:31:37,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:37,186 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2022-12-14 10:31:37,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 10:31:37,187 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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 10:31:37,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:37,187 INFO L225 Difference]: With dead ends: 27 [2022-12-14 10:31:37,187 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 10:31:37,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=47, Invalid=161, Unknown=2, NotChecked=0, Total=210 [2022-12-14 10:31:37,188 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 26 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:37,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 13 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 2 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:31:37,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 10:31:37,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2022-12-14 10:31:37,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:37,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-12-14 10:31:37,190 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 14 [2022-12-14 10:31:37,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:37,190 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-12-14 10:31:37,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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 10:31:37,191 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-12-14 10:31:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 10:31:37,191 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:37,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:31:37,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 10:31:37,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:31:37,392 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:31:37,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:37,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1440502968, now seen corresponding path program 1 times [2022-12-14 10:31:37,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:37,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750984140] [2022-12-14 10:31:37,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:37,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:37,455 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 10:31:37,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:37,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750984140] [2022-12-14 10:31:37,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750984140] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:31:37,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326057694] [2022-12-14 10:31:37,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:37,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:31:37,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:31:37,457 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:31:37,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 10:31:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:37,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 10:31:37,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:31:37,555 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 10:31:37,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:31:37,572 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 10:31:37,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326057694] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:31:37,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1907968571] [2022-12-14 10:31:37,574 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-12-14 10:31:37,574 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:31:37,575 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:31:37,575 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:31:37,575 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:31:37,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,602 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 10:31:37,602 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 10:31:37,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,611 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 10:31:37,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,649 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 10:31:37,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 10:31:37,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,662 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 10:31:37,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 10:31:37,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 10:31:37,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,725 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 37 treesize of output 28 [2022-12-14 10:31:37,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:37,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 10:31:37,835 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 10:31:37,835 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 275 treesize of output 284 [2022-12-14 10:31:37,907 INFO L321 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2022-12-14 10:31:37,907 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 278 treesize of output 294 [2022-12-14 10:31:38,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,276 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 10:31:38,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 281 treesize of output 267 [2022-12-14 10:31:38,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,342 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 10:31:38,342 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 285 treesize of output 270 [2022-12-14 10:31:38,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,369 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 0 case distinctions, treesize of input 274 treesize of output 265 [2022-12-14 10:31:38,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:38,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:38,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:38,458 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-12-14 10:31:38,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 444 [2022-12-14 10:31:38,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 352 treesize of output 343 [2022-12-14 10:31:38,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:38,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:38,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 486 treesize of output 521 [2022-12-14 10:31:38,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:38,536 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-12-14 10:31:38,536 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 4 case distinctions, treesize of input 413 treesize of output 368 [2022-12-14 10:31:38,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 65 [2022-12-14 10:31:38,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2022-12-14 10:31:38,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-14 10:31:38,807 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 10:31:38,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 688 treesize of output 605 [2022-12-14 10:31:38,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 587 treesize of output 467 [2022-12-14 10:31:38,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 547 treesize of output 543 [2022-12-14 10:31:39,129 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 10:31:39,134 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 10:31:39,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:39,204 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 10:31:39,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-12-14 10:31:39,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:39,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:39,244 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 10:31:39,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-12-14 10:31:39,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 10:31:39,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 10:31:39,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 10:31:39,313 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 10:31:39,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 10:31:39,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 10:31:39,340 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 10:31:39,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 10:31:39,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 10:31:39,547 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 10:31:39,553 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 10:31:39,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:39,621 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 10:31:39,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-12-14 10:31:39,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:39,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:39,679 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 10:31:39,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-12-14 10:31:39,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 10:31:39,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 10:31:39,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 10:31:39,756 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 10:31:39,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 10:31:39,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 10:31:39,792 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-12-14 10:31:39,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 61 treesize of output 30 [2022-12-14 10:31:39,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:39,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 10:31:39,895 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:31:41,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1907968571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:41,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:31:41,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 14 [2022-12-14 10:31:41,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253672182] [2022-12-14 10:31:41,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:41,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:31:41,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:41,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:31:41,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=157, Unknown=2, NotChecked=0, Total=210 [2022-12-14 10:31:41,197 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:41,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:41,390 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2022-12-14 10:31:41,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 10:31:41,391 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-14 10:31:41,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:41,391 INFO L225 Difference]: With dead ends: 37 [2022-12-14 10:31:41,391 INFO L226 Difference]: Without dead ends: 28 [2022-12-14 10:31:41,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=51, Invalid=157, Unknown=2, NotChecked=0, Total=210 [2022-12-14 10:31:41,392 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 18 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:41,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 29 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 2 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:31:41,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-14 10:31:41,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2022-12-14 10:31:41,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 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 10:31:41,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-12-14 10:31:41,395 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 17 [2022-12-14 10:31:41,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:41,395 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-12-14 10:31:41,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:31:41,395 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-12-14 10:31:41,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 10:31:41,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:31:41,395 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:31:41,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 10:31:41,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 10:31:41,597 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 10:31:41,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:31:41,599 INFO L85 PathProgramCache]: Analyzing trace with hash -650059803, now seen corresponding path program 1 times [2022-12-14 10:31:41,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:31:41,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382267291] [2022-12-14 10:31:41,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:41,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:31:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:31:41,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:31:41,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382267291] [2022-12-14 10:31:41,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382267291] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:31:41,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136768446] [2022-12-14 10:31:41,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:31:41,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:31:41,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:31:41,670 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:31:41,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 10:31:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:31:41,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 10:31:41,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:31:41,774 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:31:41,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:31:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:31:41,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136768446] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:31:41,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2114650426] [2022-12-14 10:31:41,791 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 10:31:41,791 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:31:41,791 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:31:41,791 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:31:41,791 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:31:41,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,814 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 10:31:41,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 10:31:41,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,833 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 10:31:41,833 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 10:31:41,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,871 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 10:31:41,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 10:31:41,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,883 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 10:31:41,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 10:31:41,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,932 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 37 treesize of output 28 [2022-12-14 10:31:41,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 10:31:41,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:41,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 10:31:42,043 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 10:31:42,043 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 275 treesize of output 284 [2022-12-14 10:31:42,101 INFO L321 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2022-12-14 10:31:42,101 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 278 treesize of output 294 [2022-12-14 10:31:42,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,414 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 10:31:42,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 281 treesize of output 267 [2022-12-14 10:31:42,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,468 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 10:31:42,469 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 285 treesize of output 270 [2022-12-14 10:31:42,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,497 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 0 case distinctions, treesize of input 274 treesize of output 265 [2022-12-14 10:31:42,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,519 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 0 case distinctions, treesize of input 274 treesize of output 265 [2022-12-14 10:31:42,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:42,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:42,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:42,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:42,564 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-12-14 10:31:42,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 444 [2022-12-14 10:31:42,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:42,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:42,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:42,619 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-12-14 10:31:42,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 408 treesize of output 437 [2022-12-14 10:31:42,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,680 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-12-14 10:31:42,680 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 4 case distinctions, treesize of input 413 treesize of output 368 [2022-12-14 10:31:42,828 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-12-14 10:31:42,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 185 [2022-12-14 10:31:42,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 134 [2022-12-14 10:31:42,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-12-14 10:31:42,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:42,891 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 0 case distinctions, treesize of input 429 treesize of output 384 [2022-12-14 10:31:42,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 10:31:42,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 364 treesize of output 360 [2022-12-14 10:31:43,238 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 10:31:43,241 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 10:31:43,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:43,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:43,303 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 10:31:43,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-12-14 10:31:43,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:43,349 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 10:31:43,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-12-14 10:31:43,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 10:31:43,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 10:31:43,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 10:31:43,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 43 [2022-12-14 10:31:43,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 10:31:43,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 10:31:43,495 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-12-14 10:31:43,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 65 [2022-12-14 10:31:43,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 10:31:43,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2022-12-14 10:31:43,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,614 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:31:43,614 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 2 case distinctions, treesize of input 63 treesize of output 49 [2022-12-14 10:31:43,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 10:31:43,635 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 10:31:43,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2022-12-14 10:31:43,648 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 10:31:43,685 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 10:31:43,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:43,703 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 10:31:43,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 72 treesize of output 61 [2022-12-14 10:31:43,716 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 10:31:43,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 10:31:43,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,733 INFO L321 Elim1Store]: treesize reduction 51, result has 12.1 percent of original size [2022-12-14 10:31:43,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 47 [2022-12-14 10:31:43,769 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 10:31:43,787 INFO L321 Elim1Store]: treesize reduction 61, result has 17.6 percent of original size [2022-12-14 10:31:43,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 46 [2022-12-14 10:31:43,809 INFO L321 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2022-12-14 10:31:43,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2022-12-14 10:31:43,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 10:31:43,870 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 10:31:43,874 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 10:31:43,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:43,950 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 10:31:43,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-12-14 10:31:43,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:43,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:43,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:31:43,988 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-12-14 10:31:43,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-12-14 10:31:44,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:44,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 10:31:44,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:44,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 10:31:44,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:44,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-12-14 10:31:44,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-12-14 10:31:44,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:44,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:44,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-12-14 10:31:44,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 10:31:44,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 53 [2022-12-14 10:31:44,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:44,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:44,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-12-14 10:31:44,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-12-14 10:31:44,223 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:31:45,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2114650426] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:31:45,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:31:45,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 15 [2022-12-14 10:31:45,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577517937] [2022-12-14 10:31:45,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:31:45,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:31:45,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:31:45,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:31:45,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=186, Unknown=2, NotChecked=0, Total=240 [2022-12-14 10:31:45,431 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 10:31:45,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:31:45,905 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2022-12-14 10:31:45,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 10:31:45,905 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 19 [2022-12-14 10:31:45,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:31:45,906 INFO L225 Difference]: With dead ends: 28 [2022-12-14 10:31:45,906 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 10:31:45,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=82, Invalid=296, Unknown=2, NotChecked=0, Total=380 [2022-12-14 10:31:45,907 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 21 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:31:45,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 7 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 2 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:31:45,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 10:31:45,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 10:31:45,908 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 10:31:45,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 10:31:45,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-12-14 10:31:45,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:31:45,908 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 10:31:45,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 10:31:45,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 10:31:45,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 10:31:45,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 10:31:45,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 10:31:45,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 10:31:45,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 10:31:45,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 10:31:45,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 10:31:45,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-14 10:31:46,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:31:46,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 10:31:46,553 INFO L902 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: true [2022-12-14 10:31:46,553 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 572 574) the Hoare annotation is: true [2022-12-14 10:31:46,553 INFO L899 garLoopResultBuilder]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2022-12-14 10:31:46,553 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-12-14 10:31:46,553 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 591) no Hoare annotation was computed. [2022-12-14 10:31:46,553 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 589 591) no Hoare annotation was computed. [2022-12-14 10:31:46,553 INFO L899 garLoopResultBuilder]: For program point L610-1(lines 610 613) no Hoare annotation was computed. [2022-12-14 10:31:46,553 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 599) no Hoare annotation was computed. [2022-12-14 10:31:46,553 INFO L895 garLoopResultBuilder]: At program point L610-3(lines 610 613) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_dll_remove_last_~head#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_dll_remove_last_#in~head#1.offset| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= 0 |ULTIMATE.start_dll_remove_last_#in~head#1.base|) (<= |ULTIMATE.start_dll_remove_last_~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_dll_remove_last_~head#1.base|) (<= 0 |ULTIMATE.start_dll_remove_last_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0)) [2022-12-14 10:31:46,553 INFO L899 garLoopResultBuilder]: For program point L610-4(lines 610 613) no Hoare annotation was computed. [2022-12-14 10:31:46,553 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-12-14 10:31:46,553 INFO L899 garLoopResultBuilder]: For program point L623(line 623) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L902 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: true [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point L623-1(line 623) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point L623-5(line 623) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point L623-6(line 623) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L895 garLoopResultBuilder]: At program point L623-7(lines 623 625) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse1 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse2 (<= |ULTIMATE.start_dll_create_#res#1.offset| 0)) (.cse3 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse4 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse5 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse6 (<= |ULTIMATE.start_dll_create_~len#1| 0)) (.cse7 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse8 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse9 (= |#NULL.offset| 0)) (.cse10 (<= 0 |ULTIMATE.start_main_~#s~0#1.base|)) (.cse11 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse12 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse13 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse14 (<= 0 |#StackHeapBarrier|)) (.cse15 (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|)) (.cse16 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_dll_create_#res#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_dll_create_#res#1.offset|) .cse4 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (= |ULTIMATE.start_main_~len~0#1| (+ |ULTIMATE.start_main_~i~0#1| 1)) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) .cse16) (and (<= 0 |ULTIMATE.start_dll_remove_last_~head#1.offset|) .cse0 (<= |ULTIMATE.start_dll_remove_last_#in~head#1.offset| 0) .cse1 (<= 0 |ULTIMATE.start_dll_remove_last_#in~head#1.base|) (<= |ULTIMATE.start_dll_remove_last_~head#1.offset| 0) .cse2 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) .cse3 (<= 0 |ULTIMATE.start_dll_remove_last_~head#1.base|) (<= 0 |ULTIMATE.start_dll_remove_last_#in~head#1.offset|) .cse4 .cse5 (= |ULTIMATE.start_main_~#s~0#1.offset| 0) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (<= |ULTIMATE.start_main_~i~0#1| 1) .cse14 .cse15 .cse16))) [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 599) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point L603(lines 603 617) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point L599-1(line 599) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L895 garLoopResultBuilder]: At program point L587-2(lines 587 600) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse1 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse2 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse3 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse4 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse5 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse6 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse7 (<= |ULTIMATE.start_main_~#s~0#1.offset| 0)) (.cse8 (= |#NULL.offset| 0)) (.cse9 (<= 0 |ULTIMATE.start_main_~#s~0#1.base|)) (.cse10 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse11 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse12 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse13 (<= 0 |#StackHeapBarrier|)) (.cse14 (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|)) (.cse15 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (<= |ULTIMATE.start_dll_create_~len#1| 1) .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 (= 2 |ULTIMATE.start_dll_create_~len#1|) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15))) [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-12-14 10:31:46,554 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 616) no Hoare annotation was computed. [2022-12-14 10:31:46,557 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:31:46,558 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:31:46,567 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 10:31:46,567 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 10:31:46,568 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 10:31:46,569 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 10:31:46,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:31:46 BoogieIcfgContainer [2022-12-14 10:31:46,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:31:46,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:31:46,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:31:46,571 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:31:46,571 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:31:30" (3/4) ... [2022-12-14 10:31:46,573 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 10:31:46,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2022-12-14 10:31:46,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-14 10:31:46,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-14 10:31:46,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 10:31:46,580 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:31:46,596 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((1 <= data && 2 <= \old(len)) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && len <= 1) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= s) && #NULL == 0) || ((((((((((((((((1 <= data && 2 <= \old(len)) && 2 == len) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= s) && #NULL == 0) [2022-12-14 10:31:46,596 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((1 <= data && 2 <= \old(len)) && \result <= 0) && data <= 1) && \result == #memory_$Pointer$[s][s]) && head == \result) && #memory_$Pointer$[s][s] == \result) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && len == i + 1) && 0 <= s) && #NULL == 0) || (((((((((((((((((((((((((0 <= head && 1 <= data) && head <= 0) && 2 <= \old(len)) && 0 <= head) && head <= 0) && \result <= 0) && 0 <= i + 2147483648) && data <= 1) && 0 <= head) && 0 <= head) && data == 1) && \old(len) <= 2) && s == 0) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && #NULL == 0) [2022-12-14 10:31:46,597 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((0 <= head && 1 <= data) && head <= 0) && 2 <= \old(len)) && 0 <= head) && head <= 0) && \result <= 0) && data <= 1) && 0 <= head) && 0 <= head) && 0 <= i) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && 0 <= s) && #NULL == 0 [2022-12-14 10:31:46,603 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:31:46,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:31:46,604 INFO L158 Benchmark]: Toolchain (without parser) took 17350.75ms. Allocated memory was 180.4MB in the beginning and 314.6MB in the end (delta: 134.2MB). Free memory was 140.8MB in the beginning and 223.6MB in the end (delta: -82.8MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-12-14 10:31:46,604 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:31:46,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.02ms. Allocated memory is still 180.4MB. Free memory was 139.9MB in the beginning and 143.1MB in the end (delta: -3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 10:31:46,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.78ms. Allocated memory is still 180.4MB. Free memory was 143.1MB in the beginning and 141.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:31:46,604 INFO L158 Benchmark]: Boogie Preprocessor took 25.55ms. Allocated memory is still 180.4MB. Free memory was 141.0MB in the beginning and 140.1MB in the end (delta: 849.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:31:46,604 INFO L158 Benchmark]: RCFGBuilder took 377.40ms. Allocated memory is still 180.4MB. Free memory was 139.7MB in the beginning and 121.3MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 10:31:46,604 INFO L158 Benchmark]: TraceAbstraction took 16554.57ms. Allocated memory was 180.4MB in the beginning and 314.6MB in the end (delta: 134.2MB). Free memory was 120.9MB in the beginning and 226.8MB in the end (delta: -105.9MB). Peak memory consumption was 162.5MB. Max. memory is 16.1GB. [2022-12-14 10:31:46,605 INFO L158 Benchmark]: Witness Printer took 32.39ms. Allocated memory is still 314.6MB. Free memory was 226.8MB in the beginning and 223.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 10:31:46,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.02ms. Allocated memory is still 180.4MB. Free memory was 139.9MB in the beginning and 143.1MB in the end (delta: -3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.78ms. Allocated memory is still 180.4MB. Free memory was 143.1MB in the beginning and 141.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.55ms. Allocated memory is still 180.4MB. Free memory was 141.0MB in the beginning and 140.1MB in the end (delta: 849.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 377.40ms. Allocated memory is still 180.4MB. Free memory was 139.7MB in the beginning and 121.3MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 16554.57ms. Allocated memory was 180.4MB in the beginning and 314.6MB in the end (delta: 134.2MB). Free memory was 120.9MB in the beginning and 226.8MB in the end (delta: -105.9MB). Peak memory consumption was 162.5MB. Max. memory is 16.1GB. * Witness Printer took 32.39ms. Allocated memory is still 314.6MB. Free memory was 226.8MB in the beginning and 223.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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 * 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: 599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 599]: 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: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 145 mSDsluCounter, 353 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 211 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 480 IncrementalHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 142 mSDtfsCounter, 480 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 135 SyntacticMatches, 12 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=3, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 18 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 8 PreInvPairs, 15 NumberOfFragments, 352 HoareAnnotationTreeSize, 8 FomulaSimplifications, 138 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 1227 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 487 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1101 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 20 InterpolantComputations, 8 PerfectInterpolantSequences, 29/43 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: 7.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 37, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 95, TOOLS_POST_TIME: 7.3s, 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: 95, TOOLS_QUANTIFIERELIM_TIME: 7.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.9s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 164, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 7, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 11, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 37, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 5.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 5.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 11, 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: 370, DAG_COMPRESSION_RETAINED_NODES: 129, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: ((((((((((((((((1 <= data && 2 <= \old(len)) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && len <= 1) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= s) && #NULL == 0) || ((((((((((((((((1 <= data && 2 <= \old(len)) && 2 == len) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= s) && #NULL == 0) - InvariantResult [Line: 623]: Loop Invariant [2022-12-14 10:31:46,611 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 10:31:46,611 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-12-14 10:31:46,612 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-12-14 10:31:46,612 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((((((((((((((((1 <= data && 2 <= \old(len)) && \result <= 0) && data <= 1) && \result == #memory_$Pointer$[s][s]) && head == \result) && #memory_$Pointer$[s][s] == \result) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && len == i + 1) && 0 <= s) && #NULL == 0) || (((((((((((((((((((((((((0 <= head && 1 <= data) && head <= 0) && 2 <= \old(len)) && 0 <= head) && head <= 0) && \result <= 0) && 0 <= i + 2147483648) && data <= 1) && 0 <= head) && 0 <= head) && data == 1) && \old(len) <= 2) && s == 0) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && #NULL == 0) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((0 <= head && 1 <= data) && head <= 0) && 2 <= \old(len)) && 0 <= head) && head <= 0) && \result <= 0) && data <= 1) && 0 <= head) && 0 <= head) && 0 <= i) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && 0 <= s) && #NULL == 0 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 10:31:46,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7793d066-e605-4bf1-8b8a-068b04c80674/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