./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety/20051113-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/memsafety/20051113-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a43a02844acf962bfa6f77d0e1512c06ac1cc2fb3c3905e584a292a069b5426 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:40:18,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:40:18,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:40:18,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:40:18,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:40:18,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:40:18,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:40:18,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:40:18,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:40:18,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:40:18,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:40:18,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:40:18,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:40:18,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:40:18,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:40:18,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:40:18,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:40:18,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:40:18,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:40:18,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:40:18,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:40:18,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:40:18,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:40:18,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:40:18,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:40:18,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:40:18,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:40:18,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:40:18,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:40:18,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:40:18,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:40:18,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:40:18,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:40:18,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:40:18,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:40:18,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:40:18,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:40:18,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:40:18,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:40:18,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:40:18,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:40:18,413 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:40:18,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:40:18,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:40:18,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:40:18,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:40:18,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:40:18,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:40:18,440 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:40:18,440 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:40:18,440 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:40:18,441 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:40:18,441 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:40:18,441 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:40:18,441 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:40:18,442 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:40:18,442 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:40:18,442 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:40:18,442 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:40:18,442 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:40:18,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:40:18,443 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:40:18,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:40:18,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:40:18,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:40:18,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:40:18,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:40:18,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:40:18,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:40:18,445 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:40:18,445 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:40:18,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:40:18,446 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:40:18,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:40:18,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:40:18,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:40:18,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:40:18,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:40:18,447 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:40:18,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:40:18,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:40:18,448 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:40:18,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:40:18,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:40:18,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:40:18,449 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_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a43a02844acf962bfa6f77d0e1512c06ac1cc2fb3c3905e584a292a069b5426 [2022-11-22 01:40:18,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:40:18,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:40:18,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:40:18,898 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:40:18,898 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:40:18,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/memsafety/20051113-1.i [2022-11-22 01:40:22,253 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:40:22,569 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:40:22,570 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/sv-benchmarks/c/memsafety/20051113-1.i [2022-11-22 01:40:22,585 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/data/9c7a76251/df1e20e42a3e4e4b86cbcbf35d857847/FLAGea43cdebf [2022-11-22 01:40:22,603 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/data/9c7a76251/df1e20e42a3e4e4b86cbcbf35d857847 [2022-11-22 01:40:22,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:40:22,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:40:22,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:40:22,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:40:22,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:40:22,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:40:22" (1/1) ... [2022-11-22 01:40:22,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e52edbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:22, skipping insertion in model container [2022-11-22 01:40:22,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:40:22" (1/1) ... [2022-11-22 01:40:22,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:40:22,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:40:23,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:40:23,076 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:40:23,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:40:23,215 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:40:23,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23 WrapperNode [2022-11-22 01:40:23,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:40:23,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:40:23,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:40:23,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:40:23,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (1/1) ... [2022-11-22 01:40:23,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (1/1) ... [2022-11-22 01:40:23,302 INFO L138 Inliner]: procedures = 125, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83 [2022-11-22 01:40:23,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:40:23,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:40:23,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:40:23,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:40:23,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (1/1) ... [2022-11-22 01:40:23,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (1/1) ... [2022-11-22 01:40:23,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (1/1) ... [2022-11-22 01:40:23,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (1/1) ... [2022-11-22 01:40:23,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (1/1) ... [2022-11-22 01:40:23,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (1/1) ... [2022-11-22 01:40:23,358 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (1/1) ... [2022-11-22 01:40:23,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (1/1) ... [2022-11-22 01:40:23,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:40:23,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:40:23,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:40:23,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:40:23,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (1/1) ... [2022-11-22 01:40:23,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:40:23,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:23,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:40:23,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:40:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:40:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:40:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:40:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:40:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_abort [2022-11-22 01:40:23,469 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_abort [2022-11-22 01:40:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:40:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:40:23,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:40:23,632 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:40:23,635 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:40:23,814 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:40:23,858 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:40:23,858 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:40:23,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:40:23 BoogieIcfgContainer [2022-11-22 01:40:23,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:40:23,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:40:23,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:40:23,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:40:23,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:40:22" (1/3) ... [2022-11-22 01:40:23,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff52cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:40:23, skipping insertion in model container [2022-11-22 01:40:23,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:40:23" (2/3) ... [2022-11-22 01:40:23,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff52cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:40:23, skipping insertion in model container [2022-11-22 01:40:23,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:40:23" (3/3) ... [2022-11-22 01:40:23,872 INFO L112 eAbstractionObserver]: Analyzing ICFG 20051113-1.i [2022-11-22 01:40:23,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:40:23,896 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 01:40:23,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:40:23,987 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;@2a8737e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:40:23,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-22 01:40:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 27 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:40:24,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:40:24,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:24,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:40:24,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:24,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:24,010 INFO L85 PathProgramCache]: Analyzing trace with hash 110571474, now seen corresponding path program 1 times [2022-11-22 01:40:24,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:24,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055585306] [2022-11-22 01:40:24,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:24,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:24,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:40:24,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:24,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055585306] [2022-11-22 01:40:24,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055585306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:24,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:24,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:24,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482911350] [2022-11-22 01:40:24,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:24,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:24,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:24,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:24,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:24,568 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 27 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:24,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:24,726 INFO L93 Difference]: Finished difference Result 75 states and 93 transitions. [2022-11-22 01:40:24,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:24,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:40:24,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:24,749 INFO L225 Difference]: With dead ends: 75 [2022-11-22 01:40:24,750 INFO L226 Difference]: Without dead ends: 42 [2022-11-22 01:40:24,753 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 [2022-11-22 01:40:24,757 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 23 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:24,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 75 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:40:24,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-22 01:40:24,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2022-11-22 01:40:24,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.5) internal successors, (30), 26 states have internal predecessors, (30), 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) [2022-11-22 01:40:24,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-11-22 01:40:24,807 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 5 [2022-11-22 01:40:24,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:24,807 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-22 01:40:24,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:24,808 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-11-22 01:40:24,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:40:24,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:24,809 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-22 01:40:24,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:40:24,810 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:24,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:24,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2062474582, now seen corresponding path program 1 times [2022-11-22 01:40:24,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:24,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142018220] [2022-11-22 01:40:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:24,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:40:24,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:24,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142018220] [2022-11-22 01:40:24,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142018220] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:40:24,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541289555] [2022-11-22 01:40:24,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:24,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:24,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:24,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:40:24,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:40:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:25,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:40:25,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:40:25,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:40:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:40:25,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541289555] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:40:25,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [420313300] [2022-11-22 01:40:25,351 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:40:25,351 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:40:25,356 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:40:25,364 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:40:25,372 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:40:25,594 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:40:25,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 01:40:25,619 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 [2022-11-22 01:40:25,714 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:40:25,718 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:40:25,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [420313300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:25,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:40:25,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5, 5] total 13 [2022-11-22 01:40:25,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133145138] [2022-11-22 01:40:25,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:25,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:25,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:25,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:25,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:40:25,921 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:26,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:26,001 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2022-11-22 01:40:26,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:40:26,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 01:40:26,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:26,004 INFO L225 Difference]: With dead ends: 55 [2022-11-22 01:40:26,004 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 01:40:26,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:40:26,010 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:26,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:40:26,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 01:40:26,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-22 01:40:26,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 27 states have internal predecessors, (31), 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) [2022-11-22 01:40:26,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-11-22 01:40:26,027 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 9 [2022-11-22 01:40:26,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:26,027 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-11-22 01:40:26,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:26,028 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-11-22 01:40:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:40:26,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:26,029 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:26,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:26,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:26,237 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:26,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:26,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1966744423, now seen corresponding path program 1 times [2022-11-22 01:40:26,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:26,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545701854] [2022-11-22 01:40:26,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:26,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:26,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:40:26,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:26,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545701854] [2022-11-22 01:40:26,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545701854] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:40:26,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496452456] [2022-11-22 01:40:26,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:26,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:26,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:26,495 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:40:26,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:40:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:26,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:40:26,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:40:26,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:40:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:40:26,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496452456] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:40:26,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1003089897] [2022-11-22 01:40:26,744 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:40:26,744 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:40:26,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:40:26,745 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:40:26,745 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:40:26,830 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:40:26,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 01:40:26,856 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 [2022-11-22 01:40:26,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:26,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 01:40:27,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:40:27,146 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-11-22 01:40:27,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-11-22 01:40:27,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 01:40:27,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:27,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:27,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:27,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:27,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:27,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:27,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:40:27,828 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:40:28,683 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '404#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (< |ULTIMATE.start_Sum_~i~0#1| (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|)) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (not (<= |ULTIMATE.start_Sum_#t~post6#1| 2147483646)) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_Sum_#t~post6#1| |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-22 01:40:28,684 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:40:28,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:40:28,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-22 01:40:28,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680468577] [2022-11-22 01:40:28,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:40:28,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:40:28,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:28,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:40:28,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:40:28,690 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:28,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:28,937 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2022-11-22 01:40:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:40:28,938 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 01:40:28,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:28,944 INFO L225 Difference]: With dead ends: 101 [2022-11-22 01:40:28,945 INFO L226 Difference]: Without dead ends: 100 [2022-11-22 01:40:28,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2022-11-22 01:40:28,955 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 116 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:28,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 111 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:40:28,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-22 01:40:28,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 40. [2022-11-22 01:40:28,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.46875) internal successors, (47), 38 states have internal predecessors, (47), 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) [2022-11-22 01:40:28,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2022-11-22 01:40:28,971 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 10 [2022-11-22 01:40:28,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:28,972 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2022-11-22 01:40:28,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:28,973 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2022-11-22 01:40:28,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:40:28,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:28,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:28,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:29,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-22 01:40:29,182 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:29,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:29,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1116357570, now seen corresponding path program 1 times [2022-11-22 01:40:29,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:29,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454508176] [2022-11-22 01:40:29,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:29,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:29,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:40:29,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:29,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454508176] [2022-11-22 01:40:29,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454508176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:29,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:29,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:40:29,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413292322] [2022-11-22 01:40:29,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:29,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:29,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:29,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:29,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:29,508 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:29,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:29,573 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2022-11-22 01:40:29,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:29,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 01:40:29,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:29,576 INFO L225 Difference]: With dead ends: 56 [2022-11-22 01:40:29,576 INFO L226 Difference]: Without dead ends: 40 [2022-11-22 01:40:29,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:29,582 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:29,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 56 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:29,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-22 01:40:29,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-22 01:40:29,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.4375) internal successors, (46), 38 states have internal predecessors, (46), 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) [2022-11-22 01:40:29,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2022-11-22 01:40:29,599 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 11 [2022-11-22 01:40:29,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:29,599 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2022-11-22 01:40:29,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:29,600 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2022-11-22 01:40:29,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:40:29,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:29,600 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-22 01:40:29,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:40:29,601 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:29,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:29,602 INFO L85 PathProgramCache]: Analyzing trace with hash 839535025, now seen corresponding path program 1 times [2022-11-22 01:40:29,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:29,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938564213] [2022-11-22 01:40:29,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:29,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:29,685 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:40:29,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:29,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938564213] [2022-11-22 01:40:29,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938564213] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:40:29,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838684623] [2022-11-22 01:40:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:29,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:29,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:29,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:40:29,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:40:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:29,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:40:29,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:40:29,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:29,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838684623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:29,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:40:29,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:40:29,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633448802] [2022-11-22 01:40:29,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:29,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:40:29,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:29,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:40:29,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:40:29,818 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:29,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:29,885 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2022-11-22 01:40:29,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:40:29,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 01:40:29,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:29,887 INFO L225 Difference]: With dead ends: 40 [2022-11-22 01:40:29,887 INFO L226 Difference]: Without dead ends: 39 [2022-11-22 01:40:29,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:40:29,888 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 38 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:29,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 40 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-22 01:40:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-22 01:40:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.34375) internal successors, (43), 37 states have internal predecessors, (43), 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) [2022-11-22 01:40:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2022-11-22 01:40:29,895 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 11 [2022-11-22 01:40:29,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:29,896 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-11-22 01:40:29,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:29,896 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-11-22 01:40:29,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:40:29,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:29,897 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:29,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:30,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:30,104 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:30,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:30,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1224890650, now seen corresponding path program 1 times [2022-11-22 01:40:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:30,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860780468] [2022-11-22 01:40:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:30,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:30,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:40:30,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:30,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860780468] [2022-11-22 01:40:30,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860780468] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:40:30,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855745127] [2022-11-22 01:40:30,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:30,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:30,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:30,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:40:30,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:40:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:30,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-22 01:40:30,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:30,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:30,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:30,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:30,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:30,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:30,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:30,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:40:30,613 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 15 treesize of output 7 [2022-11-22 01:40:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:40:30,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:30,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855745127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:30,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:40:30,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2022-11-22 01:40:30,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983843890] [2022-11-22 01:40:30,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:30,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:40:30,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:30,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:40:30,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:40:30,635 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:30,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:30,759 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2022-11-22 01:40:30,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:40:30,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 01:40:30,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:30,761 INFO L225 Difference]: With dead ends: 45 [2022-11-22 01:40:30,761 INFO L226 Difference]: Without dead ends: 44 [2022-11-22 01:40:30,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:40:30,762 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 49 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:30,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 41 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:40:30,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-22 01:40:30,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2022-11-22 01:40:30,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 40 states have internal predecessors, (46), 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) [2022-11-22 01:40:30,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2022-11-22 01:40:30,770 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 15 [2022-11-22 01:40:30,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:30,771 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-11-22 01:40:30,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:30,771 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2022-11-22 01:40:30,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 01:40:30,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:30,772 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:30,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:30,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:30,980 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:30,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:30,980 INFO L85 PathProgramCache]: Analyzing trace with hash 683095597, now seen corresponding path program 1 times [2022-11-22 01:40:30,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:30,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81937173] [2022-11-22 01:40:30,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:30,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:31,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:40:31,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:31,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81937173] [2022-11-22 01:40:31,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81937173] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:40:31,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289413420] [2022-11-22 01:40:31,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:31,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:31,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:31,160 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:40:31,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:40:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:31,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-22 01:40:31,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:31,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:31,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:31,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:31,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:31,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:31,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:31,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:40:31,424 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 15 treesize of output 7 [2022-11-22 01:40:31,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:40:31,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:31,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289413420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:31,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:40:31,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2022-11-22 01:40:31,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875578503] [2022-11-22 01:40:31,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:31,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:40:31,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:31,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:40:31,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:40:31,452 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:31,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:31,580 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-22 01:40:31,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:40:31,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-22 01:40:31,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:31,581 INFO L225 Difference]: With dead ends: 48 [2022-11-22 01:40:31,582 INFO L226 Difference]: Without dead ends: 47 [2022-11-22 01:40:31,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:40:31,583 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 34 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:31,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 43 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:40:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-22 01:40:31,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2022-11-22 01:40:31,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 41 states have internal predecessors, (47), 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) [2022-11-22 01:40:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2022-11-22 01:40:31,590 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 16 [2022-11-22 01:40:31,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:31,590 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2022-11-22 01:40:31,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:31,591 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2022-11-22 01:40:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 01:40:31,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:31,591 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:31,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:31,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:31,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:31,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:31,800 INFO L85 PathProgramCache]: Analyzing trace with hash -298871832, now seen corresponding path program 1 times [2022-11-22 01:40:31,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:31,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703071214] [2022-11-22 01:40:31,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:31,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:31,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:40:31,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:31,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703071214] [2022-11-22 01:40:31,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703071214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:31,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:31,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:31,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834276479] [2022-11-22 01:40:31,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:31,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:31,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:31,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:31,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:31,871 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:31,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:31,947 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2022-11-22 01:40:31,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:31,949 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-22 01:40:31,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:31,949 INFO L225 Difference]: With dead ends: 47 [2022-11-22 01:40:31,950 INFO L226 Difference]: Without dead ends: 45 [2022-11-22 01:40:31,950 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 [2022-11-22 01:40:31,951 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:31,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 51 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:40:31,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-22 01:40:31,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-22 01:40:31,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 43 states have internal predecessors, (49), 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) [2022-11-22 01:40:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-11-22 01:40:31,957 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 17 [2022-11-22 01:40:31,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:31,957 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-11-22 01:40:31,957 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:31,958 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-11-22 01:40:31,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 01:40:31,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:31,958 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:31,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:40:31,963 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:31,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:31,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1662842011, now seen corresponding path program 1 times [2022-11-22 01:40:31,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:31,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338109494] [2022-11-22 01:40:31,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:31,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:40:32,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:32,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338109494] [2022-11-22 01:40:32,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338109494] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:40:32,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977178368] [2022-11-22 01:40:32,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:32,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:32,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:32,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:40:32,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:40:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:32,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-22 01:40:32,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:32,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:40:32,603 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 15 treesize of output 7 [2022-11-22 01:40:32,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:40:32,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:40:32,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:40:32,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977178368] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:40:32,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [652837905] [2022-11-22 01:40:32,939 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 01:40:32,940 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:40:32,940 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:40:32,941 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:40:32,941 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:40:33,013 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 01:40:33,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 01:40:33,067 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:40:33,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 01:40:33,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:33,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 01:40:33,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:40:33,219 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-11-22 01:40:33,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-11-22 01:40:33,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 01:40:33,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:33,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:33,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:33,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:33,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:33,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:33,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:40:34,179 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:40:37,695 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1478#(and (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (not (<= (+ |ULTIMATE.start_Sum2_#t~mem11#1| |ULTIMATE.start_Sum2_~count~1#1|) 9223372036854775807)) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (< |ULTIMATE.start_Sum2_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|)) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (= |ULTIMATE.start_Sum2_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2022-11-22 01:40:37,695 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:40:37,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:40:37,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 25 [2022-11-22 01:40:37,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941570272] [2022-11-22 01:40:37,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:40:37,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-22 01:40:37,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:37,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-22 01:40:37,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1323, Unknown=0, NotChecked=0, Total=1482 [2022-11-22 01:40:37,698 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:38,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:38,464 INFO L93 Difference]: Finished difference Result 79 states and 88 transitions. [2022-11-22 01:40:38,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:40:38,465 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-22 01:40:38,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:38,466 INFO L225 Difference]: With dead ends: 79 [2022-11-22 01:40:38,466 INFO L226 Difference]: Without dead ends: 45 [2022-11-22 01:40:38,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=312, Invalid=2238, Unknown=0, NotChecked=0, Total=2550 [2022-11-22 01:40:38,468 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 105 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:38,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 172 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:40:38,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-22 01:40:38,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-22 01:40:38,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.236842105263158) internal successors, (47), 43 states have internal predecessors, (47), 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) [2022-11-22 01:40:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-11-22 01:40:38,475 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 21 [2022-11-22 01:40:38,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:38,476 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-11-22 01:40:38,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:38,476 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-11-22 01:40:38,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 01:40:38,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:38,478 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-11-22 01:40:38,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-22 01:40:38,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:38,684 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:38,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:38,685 INFO L85 PathProgramCache]: Analyzing trace with hash -94584721, now seen corresponding path program 2 times [2022-11-22 01:40:38,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:38,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574108960] [2022-11-22 01:40:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:38,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:38,963 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:40:38,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:38,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574108960] [2022-11-22 01:40:38,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574108960] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:40:38,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330337908] [2022-11-22 01:40:38,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:40:38,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:38,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:38,965 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:40:38,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:40:39,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 01:40:39,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:40:39,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-22 01:40:39,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:39,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 50 [2022-11-22 01:40:39,196 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 15 treesize of output 7 [2022-11-22 01:40:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-22 01:40:39,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:40:39,335 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-22 01:40:39,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330337908] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:40:39,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1905607531] [2022-11-22 01:40:39,340 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:40:39,340 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:40:39,340 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:40:39,341 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:40:39,341 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:40:39,382 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 01:40:39,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 01:40:39,429 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:40:39,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 01:40:39,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:39,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 01:40:39,584 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-22 01:40:39,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-11-22 01:40:39,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 01:40:39,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:39,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:39,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:39,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:39,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:39,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:39,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:40:39,859 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:40:40,657 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1816#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (< |ULTIMATE.start_Sum_~i~0#1| (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|)) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (not (<= |ULTIMATE.start_Sum_#t~post6#1| 2147483646)) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_Sum_#t~post6#1| |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-22 01:40:40,658 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:40:40,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:40:40,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 17 [2022-11-22 01:40:40,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100830665] [2022-11-22 01:40:40,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:40:40,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 01:40:40,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:40,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 01:40:40,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-11-22 01:40:40,660 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:41,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:41,150 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2022-11-22 01:40:41,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:40:41,151 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-22 01:40:41,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:41,152 INFO L225 Difference]: With dead ends: 67 [2022-11-22 01:40:41,152 INFO L226 Difference]: Without dead ends: 39 [2022-11-22 01:40:41,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=182, Invalid=940, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 01:40:41,153 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 93 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:41,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 107 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:40:41,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-22 01:40:41,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-22 01:40:41,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 37 states have internal predecessors, (39), 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) [2022-11-22 01:40:41,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-11-22 01:40:41,160 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 22 [2022-11-22 01:40:41,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:41,160 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-11-22 01:40:41,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:41,161 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-11-22 01:40:41,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 01:40:41,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:41,162 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:41,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:41,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 01:40:41,368 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:41,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:41,369 INFO L85 PathProgramCache]: Analyzing trace with hash -373173781, now seen corresponding path program 2 times [2022-11-22 01:40:41,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:41,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144180194] [2022-11-22 01:40:41,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:41,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:41,558 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-22 01:40:41,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:41,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144180194] [2022-11-22 01:40:41,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144180194] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:40:41,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064903007] [2022-11-22 01:40:41,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:40:41,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:41,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:41,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:40:41,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:40:41,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-22 01:40:41,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:40:41,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-22 01:40:41,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:41,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:41,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:41,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:41,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:41,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:41,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:41,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:40:42,094 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:40:42,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 29 treesize of output 13 [2022-11-22 01:40:42,113 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-22 01:40:42,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:40:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-22 01:40:42,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064903007] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:40:42,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1068819042] [2022-11-22 01:40:42,326 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 01:40:42,326 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:40:42,327 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:40:42,327 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:40:42,327 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:40:42,375 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:40:42,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 01:40:42,387 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 [2022-11-22 01:40:42,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:42,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 01:40:42,534 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-22 01:40:42,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-11-22 01:40:42,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 01:40:42,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:42,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:42,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:42,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:42,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:42,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:42,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:40:43,561 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:40:48,300 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2163#(and (not (<= (+ |ULTIMATE.start_Sum2_#t~mem11#1| |ULTIMATE.start_Sum2_~count~1#1|) 9223372036854775807)) (< |ULTIMATE.start_Sum2_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|)) (or (and (<= |ULTIMATE.start_Sum2_~count~1#1| 9223372036854775807) (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|)) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) (and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_Sum2_~instrs#1.base|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (= |ULTIMATE.start_Sum2_~i~1#1| 0) (= |ULTIMATE.start_Sum_#res#1| |ULTIMATE.start_Sum_~count~0#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (= |ULTIMATE.start_Sum2_~count~1#1| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= 4311811859 (mod |ULTIMATE.start_Sum_#res#1| 18446744073709551616)) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) (= |ULTIMATE.start_Sum2_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))))' at error location [2022-11-22 01:40:48,301 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:40:48,301 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:40:48,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 17 [2022-11-22 01:40:48,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120546255] [2022-11-22 01:40:48,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:40:48,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 01:40:48,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:48,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 01:40:48,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=866, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:40:48,304 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:48,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:48,900 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2022-11-22 01:40:48,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:40:48,903 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-22 01:40:48,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:48,904 INFO L225 Difference]: With dead ends: 85 [2022-11-22 01:40:48,905 INFO L226 Difference]: Without dead ends: 49 [2022-11-22 01:40:48,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=202, Invalid=1438, Unknown=0, NotChecked=0, Total=1640 [2022-11-22 01:40:48,909 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 55 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:48,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 78 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:40:48,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-22 01:40:48,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2022-11-22 01:40:48,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.162162162162162) internal successors, (43), 41 states have internal predecessors, (43), 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) [2022-11-22 01:40:48,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2022-11-22 01:40:48,933 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 29 [2022-11-22 01:40:48,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:48,935 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2022-11-22 01:40:48,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:48,936 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2022-11-22 01:40:48,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-22 01:40:48,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:48,939 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:48,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:49,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:49,146 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:49,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:49,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1834339541, now seen corresponding path program 1 times [2022-11-22 01:40:49,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:49,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919724285] [2022-11-22 01:40:49,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:49,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:49,326 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 01:40:49,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:49,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919724285] [2022-11-22 01:40:49,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919724285] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:40:49,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402773911] [2022-11-22 01:40:49,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:49,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:49,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:49,329 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:40:49,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:40:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:49,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-22 01:40:49,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:49,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:49,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:49,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:49,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:49,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:49,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:49,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:40:49,758 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 15 treesize of output 7 [2022-11-22 01:40:49,786 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-22 01:40:49,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:40:49,973 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-22 01:40:49,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402773911] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:40:49,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [686155068] [2022-11-22 01:40:49,976 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 01:40:49,977 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:40:49,977 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:40:49,977 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:40:49,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:40:50,031 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 01:40:50,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 01:40:50,089 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:40:50,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 01:40:50,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:50,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 01:40:50,245 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-22 01:40:50,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-11-22 01:40:50,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 01:40:50,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:50,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:50,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:50,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:50,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:50,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:50,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:40:51,231 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:40:56,219 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2555#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (not (<= 0 (+ |ULTIMATE.start_Sum2_#t~mem11#1| 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|))) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2022-11-22 01:40:56,220 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:40:56,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:40:56,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 16 [2022-11-22 01:40:56,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138449591] [2022-11-22 01:40:56,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:40:56,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 01:40:56,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:56,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 01:40:56,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=816, Unknown=0, NotChecked=0, Total=930 [2022-11-22 01:40:56,222 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:56,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:56,721 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2022-11-22 01:40:56,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:40:56,722 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-22 01:40:56,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:56,723 INFO L225 Difference]: With dead ends: 88 [2022-11-22 01:40:56,723 INFO L226 Difference]: Without dead ends: 49 [2022-11-22 01:40:56,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=171, Invalid=1311, Unknown=0, NotChecked=0, Total=1482 [2022-11-22 01:40:56,724 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 95 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:56,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 78 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:40:56,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-22 01:40:56,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2022-11-22 01:40:56,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 43 states have internal predecessors, (45), 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) [2022-11-22 01:40:56,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2022-11-22 01:40:56,730 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 31 [2022-11-22 01:40:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:56,731 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2022-11-22 01:40:56,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:56,731 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2022-11-22 01:40:56,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:40:56,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:56,732 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:56,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:56,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:56,943 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:40:56,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:56,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1048989363, now seen corresponding path program 1 times [2022-11-22 01:40:56,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:56,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606109482] [2022-11-22 01:40:56,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:56,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:57,084 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:40:57,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:57,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606109482] [2022-11-22 01:40:57,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606109482] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:40:57,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860698259] [2022-11-22 01:40:57,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:57,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:57,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:57,087 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:40:57,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:40:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:57,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:40:57,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:57,254 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:40:57,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:40:57,314 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:40:57,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860698259] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:40:57,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1607651175] [2022-11-22 01:40:57,318 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 01:40:57,318 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:40:57,319 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:40:57,319 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:40:57,319 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:40:57,366 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 01:40:57,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 01:40:57,412 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:40:57,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 01:40:57,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:57,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 01:40:57,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:40:57,533 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-11-22 01:40:57,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-11-22 01:40:57,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 01:40:57,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:57,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:57,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:57,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:57,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:57,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:40:57,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:40:58,415 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:41:02,452 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2961#(and (<= |ULTIMATE.start_Sum2_~count~1#1| 9223372036854775807) (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (< |ULTIMATE.start_Sum2_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|)) (not (<= |ULTIMATE.start_Sum2_#t~post9#1| 2147483646)) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|)) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_Sum2_~i~1#1| |ULTIMATE.start_Sum2_#t~post9#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:41:02,452 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:41:02,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:41:02,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-22 01:41:02,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105457847] [2022-11-22 01:41:02,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:41:02,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:41:02,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:41:02,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:41:02,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2022-11-22 01:41:02,455 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:41:02,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:02,609 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2022-11-22 01:41:02,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:41:02,610 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-22 01:41:02,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:02,610 INFO L225 Difference]: With dead ends: 67 [2022-11-22 01:41:02,610 INFO L226 Difference]: Without dead ends: 66 [2022-11-22 01:41:02,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=178, Invalid=944, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 01:41:02,612 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:02,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 108 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:41:02,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-22 01:41:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 58. [2022-11-22 01:41:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 56 states have internal predecessors, (64), 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) [2022-11-22 01:41:02,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2022-11-22 01:41:02,621 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 33 [2022-11-22 01:41:02,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:02,621 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2022-11-22 01:41:02,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:41:02,621 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2022-11-22 01:41:02,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 01:41:02,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:02,623 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:41:02,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:41:02,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-22 01:41:02,828 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:41:02,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:02,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1841068204, now seen corresponding path program 1 times [2022-11-22 01:41:02,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:41:02,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966439153] [2022-11-22 01:41:02,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:02,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:41:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:02,966 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:41:02,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:41:02,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966439153] [2022-11-22 01:41:02,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966439153] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:41:02,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846759990] [2022-11-22 01:41:02,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:02,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:41:02,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:41:02,971 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:41:03,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 01:41:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:03,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:41:03,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:03,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:41:03,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:41:03,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846759990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:03,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:41:03,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:41:03,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094425020] [2022-11-22 01:41:03,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:03,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:41:03,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:41:03,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:41:03,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:41:03,141 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:41:03,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:03,221 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2022-11-22 01:41:03,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:41:03,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-22 01:41:03,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:03,222 INFO L225 Difference]: With dead ends: 58 [2022-11-22 01:41:03,222 INFO L226 Difference]: Without dead ends: 57 [2022-11-22 01:41:03,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:41:03,223 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:03,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 71 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:41:03,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-22 01:41:03,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-22 01:41:03,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 55 states have internal predecessors, (61), 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) [2022-11-22 01:41:03,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2022-11-22 01:41:03,233 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 34 [2022-11-22 01:41:03,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:03,235 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2022-11-22 01:41:03,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:41:03,235 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2022-11-22 01:41:03,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-22 01:41:03,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:03,241 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:41:03,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:41:03,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 01:41:03,448 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:41:03,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:03,448 INFO L85 PathProgramCache]: Analyzing trace with hash 530569088, now seen corresponding path program 3 times [2022-11-22 01:41:03,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:41:03,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546733914] [2022-11-22 01:41:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:03,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:41:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-22 01:41:03,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:41:03,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546733914] [2022-11-22 01:41:03,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546733914] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:41:03,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138929485] [2022-11-22 01:41:03,705 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:41:03,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:41:03,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:41:03,706 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:41:03,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-22 01:41:03,825 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:41:03,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:41:03,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-22 01:41:03,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:03,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:03,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:03,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:03,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:03,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:03,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:03,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:41:04,520 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:41:04,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 18 [2022-11-22 01:41:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:41:04,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:41:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-22 01:41:04,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138929485] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:41:04,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [539569067] [2022-11-22 01:41:04,923 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 01:41:04,923 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:41:04,924 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:41:04,924 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:41:04,924 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:41:04,972 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:41:04,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 01:41:04,984 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 [2022-11-22 01:41:05,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:05,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 01:41:05,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:41:05,100 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-11-22 01:41:05,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-11-22 01:41:05,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 01:41:05,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:05,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:05,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:05,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:05,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:05,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:05,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:41:05,949 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:41:11,046 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3646#(and (not (<= (+ |ULTIMATE.start_Sum2_#t~mem11#1| |ULTIMATE.start_Sum2_~count~1#1|) 9223372036854775807)) (< |ULTIMATE.start_Sum2_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|)) (or (and (<= |ULTIMATE.start_Sum2_~count~1#1| 9223372036854775807) (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|)) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) (and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_Sum2_~instrs#1.base|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (= |ULTIMATE.start_Sum2_~i~1#1| 0) (= |ULTIMATE.start_Sum_#res#1| |ULTIMATE.start_Sum_~count~0#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (= |ULTIMATE.start_Sum2_~count~1#1| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= 4311811859 (mod |ULTIMATE.start_Sum_#res#1| 18446744073709551616)) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) (= |ULTIMATE.start_Sum2_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))))' at error location [2022-11-22 01:41:11,047 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:41:11,047 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:41:11,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 25 [2022-11-22 01:41:11,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934707173] [2022-11-22 01:41:11,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:41:11,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-22 01:41:11,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:41:11,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-22 01:41:11,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=1403, Unknown=0, NotChecked=0, Total=1560 [2022-11-22 01:41:11,050 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand has 25 states, 25 states have (on average 2.88) internal successors, (72), 25 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:41:12,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:12,222 INFO L93 Difference]: Finished difference Result 111 states and 122 transitions. [2022-11-22 01:41:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-22 01:41:12,223 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.88) internal successors, (72), 25 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-22 01:41:12,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:12,223 INFO L225 Difference]: With dead ends: 111 [2022-11-22 01:41:12,224 INFO L226 Difference]: Without dead ends: 59 [2022-11-22 01:41:12,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=284, Invalid=2578, Unknown=0, NotChecked=0, Total=2862 [2022-11-22 01:41:12,226 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 64 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:12,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 140 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:41:12,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-22 01:41:12,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2022-11-22 01:41:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.150943396226415) internal successors, (61), 56 states have internal predecessors, (61), 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) [2022-11-22 01:41:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2022-11-22 01:41:12,234 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 37 [2022-11-22 01:41:12,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:12,235 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2022-11-22 01:41:12,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.88) internal successors, (72), 25 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:41:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2022-11-22 01:41:12,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-22 01:41:12,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:12,236 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:41:12,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-22 01:41:12,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-22 01:41:12,448 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:41:12,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:12,448 INFO L85 PathProgramCache]: Analyzing trace with hash -531837642, now seen corresponding path program 2 times [2022-11-22 01:41:12,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:41:12,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966707864] [2022-11-22 01:41:12,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:12,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:41:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:12,681 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-22 01:41:12,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:41:12,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966707864] [2022-11-22 01:41:12,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966707864] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:41:12,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370923543] [2022-11-22 01:41:12,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:41:12,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:41:12,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:41:12,683 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:41:12,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-22 01:41:13,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:41:13,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:41:13,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-22 01:41:13,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:13,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:13,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:13,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:13,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:13,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:13,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:13,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:41:13,501 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 15 treesize of output 7 [2022-11-22 01:41:13,533 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-22 01:41:13,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:41:13,797 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-22 01:41:13,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370923543] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:41:13,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1399416214] [2022-11-22 01:41:13,800 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 01:41:13,800 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:41:13,800 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:41:13,800 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:41:13,801 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:41:13,845 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:41:13,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 01:41:13,858 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 [2022-11-22 01:41:13,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:13,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 01:41:13,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:41:13,964 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-11-22 01:41:13,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-11-22 01:41:14,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 01:41:14,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:14,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:14,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:14,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:14,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:14,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:14,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:41:14,717 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:41:19,396 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4154#(and (<= |ULTIMATE.start_Sum2_~count~1#1| 9223372036854775807) (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (not (<= 0 (+ |ULTIMATE.start_Sum2_#t~mem11#1| 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|))) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|)) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2022-11-22 01:41:19,396 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:41:19,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:41:19,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 22 [2022-11-22 01:41:19,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804683255] [2022-11-22 01:41:19,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:41:19,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-22 01:41:19,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:41:19,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-22 01:41:19,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1202, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 01:41:19,398 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand has 22 states, 22 states have (on average 3.409090909090909) internal successors, (75), 22 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:41:20,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:20,072 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2022-11-22 01:41:20,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:41:20,073 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.409090909090909) internal successors, (75), 22 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-11-22 01:41:20,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:20,074 INFO L225 Difference]: With dead ends: 111 [2022-11-22 01:41:20,074 INFO L226 Difference]: Without dead ends: 59 [2022-11-22 01:41:20,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=216, Invalid=2136, Unknown=0, NotChecked=0, Total=2352 [2022-11-22 01:41:20,076 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 46 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:20,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 163 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:41:20,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-22 01:41:20,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-22 01:41:20,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 57 states have internal predecessors, (61), 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) [2022-11-22 01:41:20,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2022-11-22 01:41:20,084 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 39 [2022-11-22 01:41:20,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:20,084 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2022-11-22 01:41:20,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.409090909090909) internal successors, (75), 22 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:41:20,085 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2022-11-22 01:41:20,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-22 01:41:20,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:20,086 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:41:20,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-22 01:41:20,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 01:41:20,293 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:41:20,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:20,294 INFO L85 PathProgramCache]: Analyzing trace with hash -978519723, now seen corresponding path program 4 times [2022-11-22 01:41:20,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:41:20,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667320391] [2022-11-22 01:41:20,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:20,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:41:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:20,803 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-22 01:41:20,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:41:20,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667320391] [2022-11-22 01:41:20,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667320391] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:41:20,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733572951] [2022-11-22 01:41:20,803 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:41:20,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:41:20,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:41:20,805 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:41:20,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-22 01:41:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:20,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-22 01:41:20,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:20,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:41:21,571 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 15 treesize of output 7 [2022-11-22 01:41:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 01:41:21,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:41:22,147 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 01:41:22,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733572951] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:41:22,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [140114020] [2022-11-22 01:41:22,150 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 01:41:22,153 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:41:22,153 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:41:22,154 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:41:22,154 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:41:22,205 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:41:22,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 01:41:22,217 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 [2022-11-22 01:41:22,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:22,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-22 01:41:22,326 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-22 01:41:22,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-11-22 01:41:22,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-22 01:41:22,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:22,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:22,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:22,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:22,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:22,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:41:22,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-22 01:41:23,003 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:41:28,356 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4716#(and (not (<= (+ |ULTIMATE.start_Sum2_#t~mem11#1| |ULTIMATE.start_Sum2_~count~1#1|) 9223372036854775807)) (< |ULTIMATE.start_Sum2_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|)) (or (and (<= |ULTIMATE.start_Sum2_~count~1#1| 9223372036854775807) (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|)) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) (and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_Sum2_~instrs#1.base|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (= |ULTIMATE.start_Sum2_~i~1#1| 0) (= |ULTIMATE.start_Sum_#res#1| |ULTIMATE.start_Sum_~count~0#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (= |ULTIMATE.start_Sum2_~count~1#1| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= 4311811859 (mod |ULTIMATE.start_Sum_#res#1| 18446744073709551616)) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) (= |ULTIMATE.start_Sum2_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))))' at error location [2022-11-22 01:41:28,356 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:41:28,356 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:41:28,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19, 19] total 41 [2022-11-22 01:41:28,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359813154] [2022-11-22 01:41:28,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:41:28,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-11-22 01:41:28,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:41:28,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-22 01:41:28,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=2805, Unknown=0, NotChecked=0, Total=3080 [2022-11-22 01:41:28,359 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 41 states, 41 states have (on average 2.3658536585365852) internal successors, (97), 41 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:41:29,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:29,616 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2022-11-22 01:41:29,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-22 01:41:29,616 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.3658536585365852) internal successors, (97), 41 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-11-22 01:41:29,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:29,617 INFO L225 Difference]: With dead ends: 59 [2022-11-22 01:41:29,617 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:41:29,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 85 SyntacticMatches, 7 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1686 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=702, Invalid=4848, Unknown=0, NotChecked=0, Total=5550 [2022-11-22 01:41:29,619 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 140 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:29,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 121 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:41:29,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:41:29,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:41:29,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:41:29,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:41:29,621 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2022-11-22 01:41:29,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:29,622 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:41:29,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.3658536585365852) internal successors, (97), 41 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:41:29,622 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:41:29,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:41:29,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-22 01:41:29,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-22 01:41:29,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-22 01:41:29,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-22 01:41:29,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-22 01:41:29,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-22 01:41:29,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-22 01:41:29,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-22 01:41:29,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:41:31,002 INFO L902 garLoopResultBuilder]: At program point dummy_abortFINAL(lines 571 573) the Hoare annotation is: true [2022-11-22 01:41:31,003 INFO L899 garLoopResultBuilder]: For program point dummy_abortEXIT(lines 571 573) no Hoare annotation was computed. [2022-11-22 01:41:31,003 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 567) no Hoare annotation was computed. [2022-11-22 01:41:31,003 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 556 558) no Hoare annotation was computed. [2022-11-22 01:41:31,003 INFO L895 garLoopResultBuilder]: At program point L585(line 585) the Hoare annotation is: (let ((.cse6 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse7 (select .cse6 (+ |ULTIMATE.start_main_~p~0#1.offset| 18)))) (let ((.cse2 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse3 (<= 1 |ULTIMATE.start_Sum_~i~0#1|)) (.cse4 (<= 555 .cse7)) (.cse5 (<= .cse7 555))) (or (let ((.cse0 (select .cse6 (+ |ULTIMATE.start_main_~p~0#1.offset| 78))) (.cse1 (select .cse6 (+ |ULTIMATE.start_main_~p~0#1.offset| 48)))) (and (<= .cse0 4311810305) (<= .cse1 999) (<= (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|) |ULTIMATE.start_Sum_~i~0#1|) (<= |ULTIMATE.start_Sum_~i~0#1| 3) (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 4311810305 .cse0) (<= 999 .cse1) .cse2 .cse3 .cse4 .cse5)) (and (<= (select .cse6 |ULTIMATE.start_main_~p~0#1.offset|) 1) .cse2 .cse3 .cse4 .cse5))))) [2022-11-22 01:41:31,004 INFO L899 garLoopResultBuilder]: For program point L556-4(line 556) no Hoare annotation was computed. [2022-11-22 01:41:31,004 INFO L899 garLoopResultBuilder]: For program point L556-5(line 556) no Hoare annotation was computed. [2022-11-22 01:41:31,004 INFO L895 garLoopResultBuilder]: At program point L556-6(lines 556 558) the Hoare annotation is: (let ((.cse14 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse11 (select .cse14 (+ |ULTIMATE.start_main_~p~0#1.offset| 18))) (.cse7 (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|)) (.cse12 (select .cse14 (+ |ULTIMATE.start_main_~p~0#1.offset| 48))) (.cse13 (select .cse14 (+ |ULTIMATE.start_main_~p~0#1.offset| 78)))) (let ((.cse0 (<= .cse13 4311810305)) (.cse1 (<= .cse12 999)) (.cse2 (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|)) (.cse3 (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|)) (.cse4 (<= 4311810305 .cse13)) (.cse5 (<= 999 .cse12)) (.cse6 (<= (select .cse7 0) 3)) (.cse8 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse9 (<= 555 .cse11)) (.cse10 (<= .cse11 555))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= 3 (select .cse7 |ULTIMATE.start_Sum_~instrs#1.offset|)) .cse8 (= |ULTIMATE.start_Sum_~i~0#1| 0) .cse9 .cse10) (and .cse0 .cse1 (<= |ULTIMATE.start_Sum_~i~0#1| 3) .cse2 .cse3 .cse4 .cse5 .cse6 .cse8 (<= 1 |ULTIMATE.start_Sum_~i~0#1|) .cse9 .cse10))))) [2022-11-22 01:41:31,005 INFO L895 garLoopResultBuilder]: At program point L556-7(lines 556 558) the Hoare annotation is: (let ((.cse6 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse7 (select .cse6 (+ |ULTIMATE.start_main_~p~0#1.offset| 18)))) (let ((.cse2 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse3 (<= 1 |ULTIMATE.start_Sum_~i~0#1|)) (.cse4 (<= 555 .cse7)) (.cse5 (<= .cse7 555))) (or (let ((.cse0 (select .cse6 (+ |ULTIMATE.start_main_~p~0#1.offset| 78))) (.cse1 (select .cse6 (+ |ULTIMATE.start_main_~p~0#1.offset| 48)))) (and (<= .cse0 4311810305) (<= .cse1 999) (<= (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|) |ULTIMATE.start_Sum_~i~0#1|) (<= |ULTIMATE.start_Sum_~i~0#1| 3) (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 4311810305 .cse0) (<= 999 .cse1) .cse2 .cse3 .cse4 .cse5)) (and (<= (select .cse6 |ULTIMATE.start_main_~p~0#1.offset|) 1) .cse2 .cse3 .cse4 .cse5))))) [2022-11-22 01:41:31,005 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2022-11-22 01:41:31,005 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:41:31,005 INFO L895 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (= |ULTIMATE.start_main_~p~0#1.offset| 0) [2022-11-22 01:41:31,005 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2022-11-22 01:41:31,006 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 587) no Hoare annotation was computed. [2022-11-22 01:41:31,006 INFO L902 garLoopResultBuilder]: At program point L586-1(lines 586 587) the Hoare annotation is: true [2022-11-22 01:41:31,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2022-11-22 01:41:31,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:41:31,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2022-11-22 01:41:31,007 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2022-11-22 01:41:31,007 INFO L899 garLoopResultBuilder]: For program point L566-4(line 566) no Hoare annotation was computed. [2022-11-22 01:41:31,007 INFO L899 garLoopResultBuilder]: For program point L566-5(line 566) no Hoare annotation was computed. [2022-11-22 01:41:31,008 INFO L895 garLoopResultBuilder]: At program point L566-6(lines 566 568) the Hoare annotation is: (let ((.cse34 (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|)) (.cse30 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse28 (select .cse30 (+ |ULTIMATE.start_main_~p~0#1.offset| 18))) (.cse15 (select .cse34 (+ 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (.cse29 (select .cse34 |ULTIMATE.start_Sum2_~instrs#1.offset|)) (.cse31 (select .cse34 (+ 78 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (.cse16 (select .cse34 (+ 48 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (.cse32 (select .cse30 (+ |ULTIMATE.start_main_~p~0#1.offset| 48))) (.cse33 (select .cse30 (+ |ULTIMATE.start_main_~p~0#1.offset| 78)))) (let ((.cse0 (<= .cse33 4311810305)) (.cse1 (<= .cse32 999)) (.cse2 (<= (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|) |ULTIMATE.start_Sum_~i~0#1|)) (.cse22 (<= 999 .cse16)) (.cse14 (<= .cse31 4311810305)) (.cse4 (<= |ULTIMATE.start_Sum_~i~0#1| 3)) (.cse5 (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|)) (.cse6 (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|)) (.cse7 (<= 4311810305 .cse33)) (.cse8 (<= 999 .cse32)) (.cse9 (<= .cse29 3)) (.cse18 (<= 4311810305 .cse31)) (.cse19 (<= 0 (+ 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|))) (.cse20 (<= .cse16 999)) (.cse21 (= |ULTIMATE.start_Sum2_~i~1#1| 0)) (.cse3 (= |ULTIMATE.start_Sum2_~instrs#1.offset| 0)) (.cse26 (<= (select .cse30 |ULTIMATE.start_main_~p~0#1.offset|) 1)) (.cse27 (<= .cse29 1)) (.cse17 (<= .cse15 555)) (.cse23 (<= |ULTIMATE.start_Sum2_~count~1#1| 0)) (.cse24 (<= 0 |ULTIMATE.start_Sum2_~count~1#1|)) (.cse10 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse25 (<= 555 .cse15)) (.cse11 (<= 1 |ULTIMATE.start_Sum_~i~0#1|)) (.cse12 (<= 555 .cse28)) (.cse13 (<= .cse28 555))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 3 |ULTIMATE.start_Sum2_~i~1#1|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (< |ULTIMATE.start_Sum2_~i~1#1| 2147483647) .cse10 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse2 .cse14 .cse3 .cse4 (<= |ULTIMATE.start_Sum2_~count~1#1| (+ .cse15 .cse16)) .cse5 .cse6 .cse17 .cse7 .cse8 (= 2 |ULTIMATE.start_Sum2_~i~1#1|) .cse9 .cse18 .cse19 .cse10 .cse11 .cse12 .cse20 .cse13) (and .cse0 .cse1 .cse21 .cse2 .cse22 .cse14 .cse3 .cse4 .cse5 .cse6 .cse17 .cse7 .cse23 .cse8 .cse9 .cse18 .cse24 .cse10 .cse25 .cse11 .cse12 .cse20 .cse13) (and .cse0 .cse1 .cse2 .cse22 .cse14 .cse3 .cse4 .cse5 .cse6 .cse17 .cse7 .cse8 .cse9 .cse18 .cse19 (= |ULTIMATE.start_Sum2_~i~1#1| 1) .cse10 .cse11 .cse12 (<= |ULTIMATE.start_Sum2_~count~1#1| .cse15) .cse20 .cse13) (and (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) .cse3 .cse26 .cse27 .cse10 .cse11 .cse12 .cse13) (and .cse21 .cse3 .cse26 .cse27 .cse17 .cse23 .cse24 .cse10 .cse25 .cse11 .cse12 .cse13))))) [2022-11-22 01:41:31,008 INFO L902 garLoopResultBuilder]: At program point L566-7(lines 566 568) the Hoare annotation is: true [2022-11-22 01:41:31,008 INFO L902 garLoopResultBuilder]: At program point L587(line 587) the Hoare annotation is: true [2022-11-22 01:41:31,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 567) no Hoare annotation was computed. [2022-11-22 01:41:31,009 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-11-22 01:41:31,009 INFO L899 garLoopResultBuilder]: For program point L567-1(line 567) no Hoare annotation was computed. [2022-11-22 01:41:31,009 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 585) no Hoare annotation was computed. [2022-11-22 01:41:31,009 INFO L899 garLoopResultBuilder]: For program point L584-1(lines 584 585) no Hoare annotation was computed. [2022-11-22 01:41:31,013 INFO L444 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:41:31,016 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:41:31,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:41:31 BoogieIcfgContainer [2022-11-22 01:41:31,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:41:31,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:41:31,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:41:31,092 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:41:31,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:40:23" (3/4) ... [2022-11-22 01:41:31,096 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:41:31,103 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure dummy_abort [2022-11-22 01:41:31,120 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-22 01:41:31,121 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-22 01:41:31,122 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 01:41:31,122 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:41:31,182 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:41:31,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:41:31,189 INFO L158 Benchmark]: Toolchain (without parser) took 68572.22ms. Allocated memory was 182.5MB in the beginning and 383.8MB in the end (delta: 201.3MB). Free memory was 149.2MB in the beginning and 233.8MB in the end (delta: -84.5MB). Peak memory consumption was 116.4MB. Max. memory is 16.1GB. [2022-11-22 01:41:31,189 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:41:31,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.99ms. Allocated memory is still 182.5MB. Free memory was 149.2MB in the beginning and 141.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 01:41:31,190 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.45ms. Allocated memory is still 182.5MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:41:31,191 INFO L158 Benchmark]: Boogie Preprocessor took 60.48ms. Allocated memory is still 182.5MB. Free memory was 139.8MB in the beginning and 137.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:41:31,192 INFO L158 Benchmark]: RCFGBuilder took 496.25ms. Allocated memory is still 182.5MB. Free memory was 137.7MB in the beginning and 123.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 01:41:31,192 INFO L158 Benchmark]: TraceAbstraction took 67227.12ms. Allocated memory was 182.5MB in the beginning and 383.8MB in the end (delta: 201.3MB). Free memory was 121.9MB in the beginning and 236.9MB in the end (delta: -115.0MB). Peak memory consumption was 88.3MB. Max. memory is 16.1GB. [2022-11-22 01:41:31,193 INFO L158 Benchmark]: Witness Printer took 90.58ms. Allocated memory is still 383.8MB. Free memory was 236.9MB in the beginning and 233.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:41:31,197 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 121.6MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.99ms. Allocated memory is still 182.5MB. Free memory was 149.2MB in the beginning and 141.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.45ms. Allocated memory is still 182.5MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.48ms. Allocated memory is still 182.5MB. Free memory was 139.8MB in the beginning and 137.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.25ms. Allocated memory is still 182.5MB. Free memory was 137.7MB in the beginning and 123.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 67227.12ms. Allocated memory was 182.5MB in the beginning and 383.8MB in the end (delta: 201.3MB). Free memory was 121.9MB in the beginning and 236.9MB in the end (delta: -115.0MB). Peak memory consumption was 88.3MB. Max. memory is 16.1GB. * Witness Printer took 90.58ms. Allocated memory is still 383.8MB. Free memory was 236.9MB in the beginning and 233.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 67.1s, OverallIterations: 17, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 911 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 896 mSDsluCounter, 1493 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1217 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2350 IncrementalHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 276 mSDtfsCounter, 2350 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1084 GetRequests, 636 SyntacticMatches, 8 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4817 ImplicationChecksByTransitivity, 40.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=16, InterpolantAutomatonStates: 180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 99 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 22 PreInvPairs, 47 NumberOfFragments, 1041 HoareAnnotationTreeSize, 22 FomulaSimplifications, 235 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 345 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 737 NumberOfCodeBlocks, 708 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 972 ConstructedInterpolants, 0 QuantifiedInterpolants, 8233 SizeOfPredicates, 116 NumberOfNonLiveVariables, 2009 ConjunctsInSsa, 265 ConjunctsInUnsatCore, 41 InterpolantComputations, 7 PerfectInterpolantSequences, 646/878 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 3, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 6, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 2, TOOLS_QUANTIFIERELIM_TIME: 0.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 12, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 3, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 43, DAG_COMPRESSION_RETAINED_NODES: 23, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: p == 0 - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: (((((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[instrs][instrs] <= i) && instrs == 0) && 3 <= i) && i <= 3) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && i < 2147483647) && p == 0) && 1 <= i) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) || ((((((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[instrs][instrs] <= i) && unknown-#memory_int-unknown[instrs][78 + instrs] <= 4311810305) && instrs == 0) && i <= 3) && count <= unknown-#memory_int-unknown[instrs][18 + instrs] + unknown-#memory_int-unknown[instrs][48 + instrs]) && instrs == p) && p == instrs) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && 2 == i) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && 4311810305 <= unknown-#memory_int-unknown[instrs][78 + instrs]) && 0 <= 9223372036854775808 + count) && p == 0) && 1 <= i) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[instrs][48 + instrs] <= 999) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || ((((((((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[p][p + 48] <= 999) && i == 0) && unknown-#memory_int-unknown[instrs][instrs] <= i) && 999 <= unknown-#memory_int-unknown[instrs][48 + instrs]) && unknown-#memory_int-unknown[instrs][78 + instrs] <= 4311810305) && instrs == 0) && i <= 3) && instrs == p) && p == instrs) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && count <= 0) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && 4311810305 <= unknown-#memory_int-unknown[instrs][78 + instrs]) && 0 <= count) && p == 0) && 555 <= unknown-#memory_int-unknown[instrs][18 + instrs]) && 1 <= i) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[instrs][48 + instrs] <= 999) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || (((((((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[instrs][instrs] <= i) && 999 <= unknown-#memory_int-unknown[instrs][48 + instrs]) && unknown-#memory_int-unknown[instrs][78 + instrs] <= 4311810305) && instrs == 0) && i <= 3) && instrs == p) && p == instrs) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && 4311810305 <= unknown-#memory_int-unknown[instrs][78 + instrs]) && 0 <= 9223372036854775808 + count) && i == 1) && p == 0) && 1 <= i) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && count <= unknown-#memory_int-unknown[instrs][18 + instrs]) && unknown-#memory_int-unknown[instrs][48 + instrs] <= 999) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || (((((((1 <= i && instrs == 0) && unknown-#memory_int-unknown[p][p] <= 1) && unknown-#memory_int-unknown[instrs][instrs] <= 1) && p == 0) && 1 <= i) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || (((((((((((i == 0 && instrs == 0) && unknown-#memory_int-unknown[p][p] <= 1) && unknown-#memory_int-unknown[instrs][instrs] <= 1) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && count <= 0) && 0 <= count) && p == 0) && 555 <= unknown-#memory_int-unknown[instrs][18 + instrs]) && 1 <= i) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: (((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[instrs][instrs] <= i) && i <= 3) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && p == 0) && 1 <= i) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) || ((((unknown-#memory_int-unknown[p][p] <= 1 && p == 0) && 1 <= i) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: (((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[p][p + 48] <= 999) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && unknown-#memory_int-unknown[instrs][0] <= 3) && 3 <= unknown-#memory_int-unknown[instrs][instrs]) && p == 0) && i == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) || (((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[p][p + 48] <= 999) && i <= 3) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && unknown-#memory_int-unknown[instrs][0] <= 3) && p == 0) && 1 <= i) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) RESULT: Ultimate proved your program to be correct! [2022-11-22 01:41:31,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a28752-63db-4fec-be73-ee67fea966ca/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE