./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/dll2c_insert_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_insert_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS --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 1b81f923e96224472f8219a473f794261ff02356a47c6b09b527f0fc600725a8 --- 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-8393723 [2022-11-19 08:24:33,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:24:33,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:24:33,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:24:33,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:24:33,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:24:33,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:24:33,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:24:33,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:24:33,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:24:33,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:24:33,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:24:33,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:24:33,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:24:33,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:24:33,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:24:33,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:24:33,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:24:33,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:24:33,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:24:33,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:24:33,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:24:33,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:24:33,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:24:33,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:24:33,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:24:33,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:24:33,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:24:33,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:24:33,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:24:33,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:24:33,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:24:33,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:24:33,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:24:33,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:24:33,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:24:33,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:24:33,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:24:33,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:24:33,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:24:33,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:24:33,279 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 08:24:33,306 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:24:33,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:24:33,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:24:33,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:24:33,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:24:33,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:24:33,309 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:24:33,309 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:24:33,309 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:24:33,310 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:24:33,310 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:24:33,311 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:24:33,311 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:24:33,311 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:24:33,312 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:24:33,312 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:24:33,312 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:24:33,313 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:24:33,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:24:33,314 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:24:33,314 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:24:33,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:24:33,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:24:33,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:24:33,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:24:33,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:24:33,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:24:33,317 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:24:33,317 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:24:33,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:24:33,318 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:24:33,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:24:33,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:24:33,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:24:33,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:24:33,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:24:33,320 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:24:33,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:24:33,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:24:33,321 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:24:33,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:24:33,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:24:33,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:24:33,322 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_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b81f923e96224472f8219a473f794261ff02356a47c6b09b527f0fc600725a8 [2022-11-19 08:24:33,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:24:33,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:24:33,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:24:33,657 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:24:33,658 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:24:33,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/list-simple/dll2c_insert_unequal.i [2022-11-19 08:24:33,740 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/data/0e1353470/f12c408682fc453492fde8dbdc1c119d/FLAGbe5b66f1c [2022-11-19 08:24:34,332 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:24:34,332 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i [2022-11-19 08:24:34,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/data/0e1353470/f12c408682fc453492fde8dbdc1c119d/FLAGbe5b66f1c [2022-11-19 08:24:34,584 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/data/0e1353470/f12c408682fc453492fde8dbdc1c119d [2022-11-19 08:24:34,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:24:34,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:24:34,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:24:34,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:24:34,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:24:34,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:24:34" (1/1) ... [2022-11-19 08:24:34,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4afbfa88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:34, skipping insertion in model container [2022-11-19 08:24:34,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:24:34" (1/1) ... [2022-11-19 08:24:34,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:24:34,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:24:35,197 WARN L234 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_d80644a7-b714-435c-9be1-fc0e23ecc49b/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i[25148,25161] [2022-11-19 08:24:35,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:24:35,211 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:24:35,261 WARN L234 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_d80644a7-b714-435c-9be1-fc0e23ecc49b/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i[25148,25161] [2022-11-19 08:24:35,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:24:35,295 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:24:35,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35 WrapperNode [2022-11-19 08:24:35,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:24:35,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:24:35,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:24:35,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:24:35,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (1/1) ... [2022-11-19 08:24:35,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (1/1) ... [2022-11-19 08:24:35,356 INFO L138 Inliner]: procedures = 127, calls = 58, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-11-19 08:24:35,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:24:35,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:24:35,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:24:35,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:24:35,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (1/1) ... [2022-11-19 08:24:35,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (1/1) ... [2022-11-19 08:24:35,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (1/1) ... [2022-11-19 08:24:35,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (1/1) ... [2022-11-19 08:24:35,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (1/1) ... [2022-11-19 08:24:35,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (1/1) ... [2022-11-19 08:24:35,414 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (1/1) ... [2022-11-19 08:24:35,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (1/1) ... [2022-11-19 08:24:35,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:24:35,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:24:35,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:24:35,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:24:35,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (1/1) ... [2022-11-19 08:24:35,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:24:35,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:35,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:24:35,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:24:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:24:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:24:35,543 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-19 08:24:35,544 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-19 08:24:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:24:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:24:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:24:35,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:24:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:24:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:24:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:24:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:24:35,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:24:35,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:24:35,741 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:24:35,743 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:24:36,268 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:24:36,384 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:24:36,385 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-19 08:24:36,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:24:36 BoogieIcfgContainer [2022-11-19 08:24:36,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:24:36,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:24:36,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:24:36,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:24:36,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:24:34" (1/3) ... [2022-11-19 08:24:36,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70236833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:24:36, skipping insertion in model container [2022-11-19 08:24:36,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:24:35" (2/3) ... [2022-11-19 08:24:36,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70236833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:24:36, skipping insertion in model container [2022-11-19 08:24:36,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:24:36" (3/3) ... [2022-11-19 08:24:36,401 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_insert_unequal.i [2022-11-19 08:24:36,423 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:24:36,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-19 08:24:36,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:24:36,491 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;@1be3d849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:24:36,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-19 08:24:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 51 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:24:36,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:24:36,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:36,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:36,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:24:36,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:36,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1899973349, now seen corresponding path program 1 times [2022-11-19 08:24:36,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:36,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277865745] [2022-11-19 08:24:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:36,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:37,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:24:37,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:37,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277865745] [2022-11-19 08:24:37,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277865745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:37,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:24:37,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:24:37,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016518220] [2022-11-19 08:24:37,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:37,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:24:37,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:37,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:24:37,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:24:37,091 INFO L87 Difference]: Start difference. First operand has 56 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 51 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 08:24:37,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:37,577 INFO L93 Difference]: Finished difference Result 109 states and 136 transitions. [2022-11-19 08:24:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:24:37,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-11-19 08:24:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:37,594 INFO L225 Difference]: With dead ends: 109 [2022-11-19 08:24:37,594 INFO L226 Difference]: Without dead ends: 55 [2022-11-19 08:24:37,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:24:37,608 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 5 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:37,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 112 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:24:37,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-19 08:24:37,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2022-11-19 08:24:37,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 44 states have internal predecessors, (48), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:24:37,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2022-11-19 08:24:37,676 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 8 [2022-11-19 08:24:37,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:37,677 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2022-11-19 08:24:37,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 08:24:37,679 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-11-19 08:24:37,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:24:37,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:37,686 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:37,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:24:37,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:24:37,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:37,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1899492300, now seen corresponding path program 1 times [2022-11-19 08:24:37,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:37,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102524998] [2022-11-19 08:24:37,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:37,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:37,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:24:37,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:37,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102524998] [2022-11-19 08:24:37,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102524998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:37,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:24:37,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:24:37,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112720726] [2022-11-19 08:24:37,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:37,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:24:37,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:24:37,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:24:37,986 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:24:39,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:24:40,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:40,056 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2022-11-19 08:24:40,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:24:40,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2022-11-19 08:24:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:40,059 INFO L225 Difference]: With dead ends: 55 [2022-11-19 08:24:40,059 INFO L226 Difference]: Without dead ends: 54 [2022-11-19 08:24:40,060 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 [2022-11-19 08:24:40,061 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 5 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:40,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 127 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-19 08:24:40,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-19 08:24:40,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2022-11-19 08:24:40,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 46 states have internal predecessors, (50), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:24:40,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2022-11-19 08:24:40,071 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 13 [2022-11-19 08:24:40,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:40,072 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2022-11-19 08:24:40,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:24:40,073 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2022-11-19 08:24:40,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 08:24:40,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:40,074 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:40,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:24:40,075 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:24:40,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:40,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1245280788, now seen corresponding path program 1 times [2022-11-19 08:24:40,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:40,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544095805] [2022-11-19 08:24:40,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:40,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:40,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:24:40,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:40,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544095805] [2022-11-19 08:24:40,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544095805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:40,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:24:40,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:24:40,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826515383] [2022-11-19 08:24:40,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:40,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:24:40,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:40,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:24:40,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:24:40,311 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:24:40,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:40,951 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-11-19 08:24:40,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:24:40,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-11-19 08:24:40,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:40,953 INFO L225 Difference]: With dead ends: 54 [2022-11-19 08:24:40,953 INFO L226 Difference]: Without dead ends: 53 [2022-11-19 08:24:40,954 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 [2022-11-19 08:24:40,955 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 2 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:40,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 128 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 08:24:40,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-19 08:24:40,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-19 08:24:40,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.5) internal successors, (51), 47 states have internal predecessors, (51), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:24:40,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2022-11-19 08:24:40,965 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 14 [2022-11-19 08:24:40,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:40,965 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2022-11-19 08:24:40,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:24:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2022-11-19 08:24:40,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 08:24:40,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:40,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:40,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:24:40,992 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:24:40,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:40,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1581045386, now seen corresponding path program 1 times [2022-11-19 08:24:40,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:40,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833109717] [2022-11-19 08:24:40,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:40,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:41,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:24:41,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:41,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833109717] [2022-11-19 08:24:41,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833109717] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:24:41,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885734926] [2022-11-19 08:24:41,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:41,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:41,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:41,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:41,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:24:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:41,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:24:41,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:41,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 08:24:41,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:24:41,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885734926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:41,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:24:41,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-19 08:24:41,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34386276] [2022-11-19 08:24:41,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:41,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:24:41,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:41,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:24:41,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:24:41,664 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:24:42,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:42,060 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2022-11-19 08:24:42,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:24:42,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-11-19 08:24:42,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:42,062 INFO L225 Difference]: With dead ends: 53 [2022-11-19 08:24:42,062 INFO L226 Difference]: Without dead ends: 47 [2022-11-19 08:24:42,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:24:42,068 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 34 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:42,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 43 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:24:42,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-19 08:24:42,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-19 08:24:42,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.40625) internal successors, (45), 41 states have internal predecessors, (45), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:24:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2022-11-19 08:24:42,082 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 16 [2022-11-19 08:24:42,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:42,083 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2022-11-19 08:24:42,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:24:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2022-11-19 08:24:42,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:24:42,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:42,085 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:42,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:42,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:42,295 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:24:42,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:42,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1703470919, now seen corresponding path program 1 times [2022-11-19 08:24:42,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:42,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235273594] [2022-11-19 08:24:42,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:42,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:24:42,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:42,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235273594] [2022-11-19 08:24:42,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235273594] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:24:42,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960892137] [2022-11-19 08:24:42,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:42,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:42,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:42,579 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:42,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:24:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:42,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:24:42,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:24:42,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:24:42,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960892137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:42,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:24:42,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2022-11-19 08:24:42,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183223651] [2022-11-19 08:24:42,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:42,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:24:42,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:42,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:24:42,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:24:42,890 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 08:24:44,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:24:44,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:44,215 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2022-11-19 08:24:44,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:24:44,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-11-19 08:24:44,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:44,217 INFO L225 Difference]: With dead ends: 80 [2022-11-19 08:24:44,217 INFO L226 Difference]: Without dead ends: 41 [2022-11-19 08:24:44,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:24:44,219 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 33 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:44,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 79 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 08:24:44,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-19 08:24:44,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-19 08:24:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 36 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:24:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-11-19 08:24:44,244 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 21 [2022-11-19 08:24:44,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:44,244 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-11-19 08:24:44,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 08:24:44,245 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-11-19 08:24:44,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:24:44,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:44,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:44,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:44,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:44,453 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:24:44,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:44,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1040379132, now seen corresponding path program 1 times [2022-11-19 08:24:44,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:44,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440460409] [2022-11-19 08:24:44,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:44,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:44,777 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:24:44,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:44,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440460409] [2022-11-19 08:24:44,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440460409] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:24:44,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889041692] [2022-11-19 08:24:44,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:44,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:44,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:44,781 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:44,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:24:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:45,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:24:45,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:45,158 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 08:24:45,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:24:45,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889041692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:45,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:24:45,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2022-11-19 08:24:45,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748275145] [2022-11-19 08:24:45,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:45,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:24:45,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:45,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:24:45,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:24:45,165 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 08:24:45,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:45,946 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-11-19 08:24:45,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:24:45,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-11-19 08:24:45,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:45,948 INFO L225 Difference]: With dead ends: 41 [2022-11-19 08:24:45,948 INFO L226 Difference]: Without dead ends: 40 [2022-11-19 08:24:45,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:24:45,949 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 55 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:45,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 76 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:24:45,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-19 08:24:45,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-19 08:24:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 35 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:24:45,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2022-11-19 08:24:45,957 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 24 [2022-11-19 08:24:45,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:45,957 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2022-11-19 08:24:45,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 08:24:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-11-19 08:24:45,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 08:24:45,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:45,959 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:45,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:46,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 08:24:46,171 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:24:46,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:46,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2107985357, now seen corresponding path program 1 times [2022-11-19 08:24:46,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:46,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407026493] [2022-11-19 08:24:46,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:46,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 08:24:46,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:46,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407026493] [2022-11-19 08:24:46,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407026493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:46,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:24:46,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:24:46,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190048276] [2022-11-19 08:24:46,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:46,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:24:46,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:46,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:24:46,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:24:46,302 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 08:24:46,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:46,955 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-11-19 08:24:46,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:24:46,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2022-11-19 08:24:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:46,957 INFO L225 Difference]: With dead ends: 40 [2022-11-19 08:24:46,957 INFO L226 Difference]: Without dead ends: 39 [2022-11-19 08:24:46,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:24:46,958 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:46,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 08:24:46,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-19 08:24:46,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-19 08:24:46,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 34 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:24:46,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-11-19 08:24:46,966 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 25 [2022-11-19 08:24:46,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:46,966 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-11-19 08:24:46,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 08:24:46,967 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-11-19 08:24:46,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 08:24:46,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:46,968 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:46,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:24:46,969 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:24:46,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:46,969 INFO L85 PathProgramCache]: Analyzing trace with hash 927379340, now seen corresponding path program 1 times [2022-11-19 08:24:46,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:46,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145303097] [2022-11-19 08:24:46,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:46,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:47,450 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 08:24:47,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:47,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145303097] [2022-11-19 08:24:47,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145303097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:47,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:24:47,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:24:47,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27776810] [2022-11-19 08:24:47,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:47,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:24:47,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:47,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:24:47,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:24:47,454 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 08:24:48,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:48,152 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-11-19 08:24:48,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:24:48,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2022-11-19 08:24:48,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:48,154 INFO L225 Difference]: With dead ends: 45 [2022-11-19 08:24:48,154 INFO L226 Difference]: Without dead ends: 43 [2022-11-19 08:24:48,154 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 [2022-11-19 08:24:48,155 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 3 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:48,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 96 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:24:48,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-19 08:24:48,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-19 08:24:48,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 38 states have internal predecessors, (41), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:24:48,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-11-19 08:24:48,161 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 26 [2022-11-19 08:24:48,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:48,162 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-11-19 08:24:48,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 08:24:48,162 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-11-19 08:24:48,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 08:24:48,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:48,163 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:48,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:24:48,164 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:24:48,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:48,164 INFO L85 PathProgramCache]: Analyzing trace with hash -15679957, now seen corresponding path program 1 times [2022-11-19 08:24:48,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:48,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170230277] [2022-11-19 08:24:48,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:48,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:48,691 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 08:24:48,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:48,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170230277] [2022-11-19 08:24:48,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170230277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:48,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:24:48,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:24:48,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066018830] [2022-11-19 08:24:48,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:48,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:24:48,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:48,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:24:48,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:24:48,695 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 08:24:49,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:49,065 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2022-11-19 08:24:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:24:49,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-11-19 08:24:49,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:49,067 INFO L225 Difference]: With dead ends: 56 [2022-11-19 08:24:49,067 INFO L226 Difference]: Without dead ends: 55 [2022-11-19 08:24:49,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:24:49,068 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:49,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 139 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:24:49,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-19 08:24:49,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2022-11-19 08:24:49,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 42 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:24:49,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-11-19 08:24:49,074 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 31 [2022-11-19 08:24:49,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:49,074 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-19 08:24:49,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 08:24:49,081 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-11-19 08:24:49,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 08:24:49,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:49,085 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:49,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:24:49,085 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:24:49,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:49,086 INFO L85 PathProgramCache]: Analyzing trace with hash -15640235, now seen corresponding path program 1 times [2022-11-19 08:24:49,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:24:49,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756140651] [2022-11-19 08:24:49,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:49,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:24:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 08:24:49,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:24:49,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756140651] [2022-11-19 08:24:49,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756140651] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:24:49,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886685482] [2022-11-19 08:24:49,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:49,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:24:49,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:24:49,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:24:49,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:24:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:50,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:24:50,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:50,249 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 08:24:50,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:24:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 08:24:50,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886685482] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:24:50,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2065662986] [2022-11-19 08:24:50,378 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-11-19 08:24:50,378 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:24:50,382 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:24:50,389 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:24:50,389 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:24:50,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,518 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:24:50,519 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 [2022-11-19 08:24:50,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,566 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:24:50,566 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 [2022-11-19 08:24:50,644 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 [2022-11-19 08:24:50,652 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 [2022-11-19 08:24:50,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 08:24:50,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 08:24:50,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 08:24:50,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 08:24:50,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-19 08:24:50,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-19 08:24:50,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:50,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 08:24:51,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:24:51,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-19 08:24:51,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-19 08:24:51,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-11-19 08:24:51,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:24:51,656 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:51,658 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:51,662 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:52,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:24:52,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-11-19 08:24:52,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:24:52,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-19 08:24:52,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-19 08:24:52,103 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:52,105 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:52,107 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:52,109 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:52,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:52,235 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-19 08:24:52,236 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 1 case distinctions, treesize of input 44 treesize of output 30 [2022-11-19 08:24:52,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:52,276 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:24:52,277 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 1 case distinctions, treesize of input 44 treesize of output 34 [2022-11-19 08:24:52,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 18 [2022-11-19 08:24:52,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:52,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 29 treesize of output 17 [2022-11-19 08:24:52,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 35 treesize of output 7 [2022-11-19 08:24:52,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 29 treesize of output 17 [2022-11-19 08:24:52,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:52,674 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:24:52,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 10 [2022-11-19 08:24:52,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:52,718 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:24:52,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 10 [2022-11-19 08:24:52,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:52,834 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:24:52,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 10 [2022-11-19 08:24:52,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:52,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:52,871 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:24:52,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 10 [2022-11-19 08:24:53,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:53,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:53,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:24:53,170 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:53,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:53,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 17 treesize of output 7 [2022-11-19 08:24:53,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:53,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 17 treesize of output 7 [2022-11-19 08:24:53,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:24:53,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2022-11-19 08:24:53,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:24:53,885 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:53,887 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:53,890 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:53,893 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:54,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2022-11-19 08:24:54,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:54,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 17 treesize of output 7 [2022-11-19 08:24:54,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:24:54,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:24:54,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:54,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 17 treesize of output 7 [2022-11-19 08:24:54,428 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:54,431 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:54,433 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:24:54,500 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 21 for LOIs [2022-11-19 08:24:54,514 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 [2022-11-19 08:24:54,521 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 [2022-11-19 08:24:54,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:54,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:54,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 08:24:54,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:54,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:54,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 08:24:54,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:54,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:24:54,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 08:24:54,594 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:24:58,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2065662986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:58,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:24:58,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5, 5, 5] total 25 [2022-11-19 08:24:58,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732329099] [2022-11-19 08:24:58,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:58,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-19 08:24:58,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:24:58,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-19 08:24:58,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2022-11-19 08:24:58,102 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 15 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:25:00,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:25:00,212 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2022-11-19 08:25:00,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:25:00,213 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2022-11-19 08:25:00,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:25:00,214 INFO L225 Difference]: With dead ends: 76 [2022-11-19 08:25:00,214 INFO L226 Difference]: Without dead ends: 48 [2022-11-19 08:25:00,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2022-11-19 08:25:00,215 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 34 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:25:00,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 178 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 08:25:00,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-19 08:25:00,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-19 08:25:00,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 38 states have (on average 1.236842105263158) internal successors, (47), 43 states have internal predecessors, (47), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:25:00,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-11-19 08:25:00,228 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 31 [2022-11-19 08:25:00,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:25:00,229 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-11-19 08:25:00,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 08:25:00,229 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-11-19 08:25:00,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 08:25:00,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:25:00,231 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:25:00,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:25:00,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:00,441 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 08:25:00,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:25:00,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1699201590, now seen corresponding path program 1 times [2022-11-19 08:25:00,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:25:00,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547116673] [2022-11-19 08:25:00,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:00,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:25:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:00,953 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 08:25:00,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:25:00,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547116673] [2022-11-19 08:25:00,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547116673] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:25:00,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380023377] [2022-11-19 08:25:00,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:00,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:25:00,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:25:00,956 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:25:00,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:25:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:01,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:25:01,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:25:01,709 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 08:25:01,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:25:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 08:25:01,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380023377] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:25:01,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [43665826] [2022-11-19 08:25:01,783 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-19 08:25:01,783 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:25:01,784 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:25:01,784 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:25:01,784 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:25:01,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:01,831 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:25:01,831 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 [2022-11-19 08:25:01,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:01,845 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 [2022-11-19 08:25:01,875 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 [2022-11-19 08:25:01,881 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 [2022-11-19 08:25:01,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:01,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:01,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 08:25:01,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:01,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:01,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 08:25:01,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:01,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:01,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 08:25:01,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:01,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-19 08:25:01,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:01,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 08:25:02,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:02,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-19 08:25:02,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:02,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 08:25:02,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:25:02,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:25:02,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2022-11-19 08:25:02,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:02,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 17 treesize of output 7 [2022-11-19 08:25:02,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:02,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 17 treesize of output 7 [2022-11-19 08:25:02,587 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:25:02,590 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:25:02,592 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:25:02,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:25:02,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-19 08:25:02,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-19 08:25:02,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2022-11-19 08:25:02,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-19 08:25:02,984 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:25:02,986 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:25:02,989 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:25:03,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,132 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 249 treesize of output 233 [2022-11-19 08:25:03,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,186 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:25:03,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 356 treesize of output 363 [2022-11-19 08:25:03,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,290 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 08:25:03,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 352 treesize of output 243 [2022-11-19 08:25:03,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 13 [2022-11-19 08:25:03,363 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 08:25:03,363 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 141 treesize of output 114 [2022-11-19 08:25:03,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,380 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 100 treesize of output 78 [2022-11-19 08:25:03,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 35 treesize of output 7 [2022-11-19 08:25:03,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 29 treesize of output 17 [2022-11-19 08:25:03,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 29 treesize of output 17 [2022-11-19 08:25:03,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,810 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:25:03,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 10 [2022-11-19 08:25:03,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,841 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:25:03,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 10 [2022-11-19 08:25:03,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,921 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:25:03,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 10 [2022-11-19 08:25:03,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:03,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:03,948 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-19 08:25:03,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 10 [2022-11-19 08:25:04,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:04,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:04,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:25:04,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:25:04,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:14,000 WARN L233 SmtUtils]: Spent 3.16m on a formula simplification. DAG size of input: 293 DAG size of output: 116 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:28:14,001 INFO L321 Elim1Store]: treesize reduction 2651, result has 11.1 percent of original size [2022-11-19 08:28:14,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 10 new quantified variables, introduced 29 case distinctions, treesize of input 3205 treesize of output 3057 [2022-11-19 08:28:14,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:14,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:14,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:14,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:22,413 WARN L233 SmtUtils]: Spent 1.14m on a formula simplification. DAG size of input: 287 DAG size of output: 112 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:29:22,414 INFO L321 Elim1Store]: treesize reduction 2004, result has 12.0 percent of original size [2022-11-19 08:29:22,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 12 new quantified variables, introduced 40 case distinctions, treesize of input 2128 treesize of output 2334 [2022-11-19 08:29:22,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:25,806 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-11-19 08:29:25,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 1291 treesize of output 1343 [2022-11-19 08:29:29,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-19 08:29:29,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-19 08:29:30,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-19 08:29:30,302 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:29:30,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2022-11-19 08:29:33,806 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:29:33,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 237 treesize of output 343 [2022-11-19 08:29:33,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:33,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 210 [2022-11-19 08:29:34,135 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 9 treesize of output 7 [2022-11-19 08:29:34,292 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 9 treesize of output 7 [2022-11-19 08:29:34,371 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:29:34,594 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:29:34,650 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:29:39,276 INFO L321 Elim1Store]: treesize reduction 216, result has 25.0 percent of original size [2022-11-19 08:29:39,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 188 treesize of output 549 [2022-11-19 08:29:39,402 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 16 treesize of output 15 [2022-11-19 08:29:39,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:39,476 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 16 treesize of output 1 [2022-11-19 08:29:41,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:41,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:41,708 INFO L321 Elim1Store]: treesize reduction 87, result has 27.5 percent of original size [2022-11-19 08:29:41,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 179 treesize of output 501 [2022-11-19 08:29:42,801 INFO L321 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2022-11-19 08:29:42,801 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 26 treesize of output 19 [2022-11-19 08:29:43,597 INFO L321 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2022-11-19 08:29:43,597 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 1209 treesize of output 1067 [2022-11-19 08:29:43,669 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:29:43,721 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:29:43,871 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:29:44,040 INFO L321 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2022-11-19 08:29:44,041 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 1201 treesize of output 1059 [2022-11-19 08:29:44,117 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:29:44,183 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 1192 treesize of output 1041 [2022-11-19 08:29:44,472 INFO L321 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2022-11-19 08:29:44,473 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 500 treesize of output 448 [2022-11-19 08:29:44,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:29:44,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:29:44,793 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:251) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-19 08:29:44,797 INFO L158 Benchmark]: Toolchain (without parser) took 310207.54ms. Allocated memory was 136.3MB in the beginning and 390.1MB in the end (delta: 253.8MB). Free memory was 95.3MB in the beginning and 182.1MB in the end (delta: -86.8MB). Peak memory consumption was 238.5MB. Max. memory is 16.1GB. [2022-11-19 08:29:44,797 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 136.3MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:29:44,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 704.79ms. Allocated memory is still 136.3MB. Free memory was 95.1MB in the beginning and 101.9MB in the end (delta: -6.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 08:29:44,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.17ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 99.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:29:44,798 INFO L158 Benchmark]: Boogie Preprocessor took 62.22ms. Allocated memory is still 136.3MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:29:44,798 INFO L158 Benchmark]: RCFGBuilder took 967.72ms. Allocated memory is still 136.3MB. Free memory was 97.6MB in the beginning and 62.7MB in the end (delta: 35.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-19 08:29:44,798 INFO L158 Benchmark]: TraceAbstraction took 308404.60ms. Allocated memory was 136.3MB in the beginning and 390.1MB in the end (delta: 253.8MB). Free memory was 62.0MB in the beginning and 182.1MB in the end (delta: -120.1MB). Peak memory consumption was 207.2MB. Max. memory is 16.1GB. [2022-11-19 08:29:44,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 136.3MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 704.79ms. Allocated memory is still 136.3MB. Free memory was 95.1MB in the beginning and 101.9MB in the end (delta: -6.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.17ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 99.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.22ms. Allocated memory is still 136.3MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 967.72ms. Allocated memory is still 136.3MB. Free memory was 97.6MB in the beginning and 62.7MB in the end (delta: 35.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 308404.60ms. Allocated memory was 136.3MB in the beginning and 390.1MB in the end (delta: 253.8MB). Free memory was 62.0MB in the beginning and 182.1MB in the end (delta: -120.1MB). Peak memory consumption was 207.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-19 08:29:44,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80644a7-b714-435c-9be1-fc0e23ecc49b/bin/utaipan-I9t0OCRTmS/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: no need to replace index