./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:58:45,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:58:45,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:58:45,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:58:45,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:58:45,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:58:45,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:58:45,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:58:45,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:58:45,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:58:45,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:58:45,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:58:45,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:58:45,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:58:45,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:58:45,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:58:45,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:58:45,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:58:45,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:58:45,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:58:45,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:58:45,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:58:45,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:58:45,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:58:45,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:58:45,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:58:45,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:58:45,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:58:45,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:58:45,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:58:45,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:58:45,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:58:45,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:58:45,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:58:45,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:58:45,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:58:45,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:58:45,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:58:45,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:58:45,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:58:45,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:58:45,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 15:58:45,570 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:58:45,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:58:45,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:58:45,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:58:45,571 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:58:45,571 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:58:45,572 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:58:45,572 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:58:45,572 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:58:45,572 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:58:45,572 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:58:45,573 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:58:45,573 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:58:45,573 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:58:45,573 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:58:45,573 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:58:45,573 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:58:45,574 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:58:45,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:58:45,575 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:58:45,575 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:58:45,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:58:45,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:58:45,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:58:45,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:58:45,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:58:45,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:58:45,576 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:58:45,576 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:58:45,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:58:45,576 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:58:45,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:58:45,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:58:45,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:58:45,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:58:45,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:58:45,578 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:58:45,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:58:45,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:58:45,578 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:58:45,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:58:45,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:58:45,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:58:45,579 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_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 [2022-12-14 15:58:45,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:58:45,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:58:45,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:58:45,775 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:58:45,775 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:58:45,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2022-12-14 15:58:48,378 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:58:48,524 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:58:48,524 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2022-12-14 15:58:48,531 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/data/01bbdf779/b8567236d8124039a88faab157763369/FLAGb06aa420d [2022-12-14 15:58:48,543 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/data/01bbdf779/b8567236d8124039a88faab157763369 [2022-12-14 15:58:48,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:58:48,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:58:48,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:58:48,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:58:48,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:58:48,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53905d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48, skipping insertion in model container [2022-12-14 15:58:48,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:58:48,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:58:48,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:58:48,851 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:58:48,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:58:48,906 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:58:48,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48 WrapperNode [2022-12-14 15:58:48,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:58:48,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:58:48,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:58:48,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:58:48,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,944 INFO L138 Inliner]: procedures = 126, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2022-12-14 15:58:48,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:58:48,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:58:48,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:58:48,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:58:48,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,966 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:58:48,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:58:48,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:58:48,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:58:48,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (1/1) ... [2022-12-14 15:58:48,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:58:48,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:58:48,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:58:48,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:58:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:58:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:58:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:58:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:58:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:58:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:58:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 15:58:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:58:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:58:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:58:49,122 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:58:49,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:58:49,293 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:58:49,369 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:58:49,369 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 15:58:49,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:58:49 BoogieIcfgContainer [2022-12-14 15:58:49,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:58:49,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:58:49,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:58:49,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:58:49,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:58:48" (1/3) ... [2022-12-14 15:58:49,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d19e929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:58:49, skipping insertion in model container [2022-12-14 15:58:49,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:58:48" (2/3) ... [2022-12-14 15:58:49,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d19e929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:58:49, skipping insertion in model container [2022-12-14 15:58:49,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:58:49" (3/3) ... [2022-12-14 15:58:49,379 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0232_1-1.i [2022-12-14 15:58:49,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:58:49,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 15:58:49,438 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:58:49,443 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;@80e0bad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:58:49,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 15:58:49,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:49,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 15:58:49,451 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:49,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 15:58:49,452 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:58:49,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:49,456 INFO L85 PathProgramCache]: Analyzing trace with hash 99176, now seen corresponding path program 1 times [2022-12-14 15:58:49,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:49,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554844161] [2022-12-14 15:58:49,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:49,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:49,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:49,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:49,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554844161] [2022-12-14 15:58:49,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554844161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:49,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:49,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:58:49,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090685912] [2022-12-14 15:58:49,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:49,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:58:49,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:49,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:58:49,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:58:49,694 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:49,759 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-12-14 15:58:49,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:58:49,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 15:58:49,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:49,770 INFO L225 Difference]: With dead ends: 38 [2022-12-14 15:58:49,770 INFO L226 Difference]: Without dead ends: 24 [2022-12-14 15:58:49,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:58:49,777 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:49,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 48 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:58:49,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-14 15:58:49,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-14 15:58:49,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.625) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:49,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-12-14 15:58:49,802 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 3 [2022-12-14 15:58:49,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:49,802 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-12-14 15:58:49,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:49,803 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-12-14 15:58:49,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 15:58:49,803 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:49,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 15:58:49,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:58:49,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:58:49,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:49,804 INFO L85 PathProgramCache]: Analyzing trace with hash 95311597, now seen corresponding path program 1 times [2022-12-14 15:58:49,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:49,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089728094] [2022-12-14 15:58:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:49,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:49,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:49,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:49,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089728094] [2022-12-14 15:58:49,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089728094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:49,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:49,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:58:49,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637325905] [2022-12-14 15:58:49,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:49,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:58:49,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:49,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:58:49,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:58:49,921 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:49,969 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-12-14 15:58:49,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:58:49,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 15:58:49,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:49,970 INFO L225 Difference]: With dead ends: 28 [2022-12-14 15:58:49,970 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 15:58:49,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:58:49,972 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:49,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 49 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:58:49,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 15:58:49,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-12-14 15:58:49,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:49,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-12-14 15:58:49,976 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 5 [2022-12-14 15:58:49,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:49,977 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-12-14 15:58:49,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:49,977 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-12-14 15:58:49,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 15:58:49,977 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:49,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:58:49,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:58:49,978 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:58:49,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:49,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1204736416, now seen corresponding path program 1 times [2022-12-14 15:58:49,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:49,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934676957] [2022-12-14 15:58:49,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:49,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:50,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:50,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934676957] [2022-12-14 15:58:50,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934676957] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:50,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:50,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:58:50,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053139113] [2022-12-14 15:58:50,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:50,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:58:50,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:50,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:58:50,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:58:50,078 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:50,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:50,107 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-12-14 15:58:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:58:50,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 15:58:50,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:50,108 INFO L225 Difference]: With dead ends: 26 [2022-12-14 15:58:50,108 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 15:58:50,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:58:50,110 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:50,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 30 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:58:50,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 15:58:50,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-14 15:58:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.5) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-12-14 15:58:50,114 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 9 [2022-12-14 15:58:50,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:50,114 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-12-14 15:58:50,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:50,115 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-12-14 15:58:50,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 15:58:50,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:50,115 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:58:50,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:58:50,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:58:50,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:50,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1204736100, now seen corresponding path program 1 times [2022-12-14 15:58:50,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:50,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957579215] [2022-12-14 15:58:50,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:50,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:50,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:50,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:50,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957579215] [2022-12-14 15:58:50,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957579215] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:58:50,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205854741] [2022-12-14 15:58:50,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:50,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:58:50,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:58:50,228 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:58:50,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:58:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:50,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:58:50,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:58:50,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:50,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:58:50,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205854741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:50,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:58:50,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 15:58:50,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142018749] [2022-12-14 15:58:50,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:50,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:58:50,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:50,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:58:50,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:58:50,364 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:50,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:50,429 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-12-14 15:58:50,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:58:50,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 15:58:50,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:50,430 INFO L225 Difference]: With dead ends: 25 [2022-12-14 15:58:50,430 INFO L226 Difference]: Without dead ends: 24 [2022-12-14 15:58:50,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:58:50,432 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 34 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:50,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 36 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:58:50,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-14 15:58:50,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-14 15:58:50,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:50,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-12-14 15:58:50,435 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 9 [2022-12-14 15:58:50,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:50,435 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-12-14 15:58:50,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:50,435 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-12-14 15:58:50,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:58:50,436 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:50,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:58:50,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:58:50,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:58:50,638 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:58:50,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:50,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1307903183, now seen corresponding path program 1 times [2022-12-14 15:58:50,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:50,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214284655] [2022-12-14 15:58:50,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:50,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:50,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:50,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:50,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214284655] [2022-12-14 15:58:50,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214284655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:50,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:50,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:58:50,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734014473] [2022-12-14 15:58:50,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:50,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:58:50,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:50,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:58:50,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:58:50,819 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:50,884 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-12-14 15:58:50,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:58:50,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 15:58:50,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:50,885 INFO L225 Difference]: With dead ends: 39 [2022-12-14 15:58:50,885 INFO L226 Difference]: Without dead ends: 34 [2022-12-14 15:58:50,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:58:50,886 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 16 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:50,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 55 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:58:50,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-14 15:58:50,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2022-12-14 15:58:50,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:50,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-12-14 15:58:50,890 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 10 [2022-12-14 15:58:50,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:50,890 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-12-14 15:58:50,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:50,890 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-12-14 15:58:50,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:58:50,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:50,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:58:50,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:58:50,891 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:58:50,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:50,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1307876691, now seen corresponding path program 1 times [2022-12-14 15:58:50,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:50,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113368302] [2022-12-14 15:58:50,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:50,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:50,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:50,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:50,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113368302] [2022-12-14 15:58:50,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113368302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:50,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:50,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:58:50,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127562802] [2022-12-14 15:58:50,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:50,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:58:50,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:50,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:58:50,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:58:50,978 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:51,048 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2022-12-14 15:58:51,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:58:51,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 15:58:51,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:51,049 INFO L225 Difference]: With dead ends: 42 [2022-12-14 15:58:51,050 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 15:58:51,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:58:51,050 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:51,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 61 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:58:51,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 15:58:51,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 28. [2022-12-14 15:58:51,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-12-14 15:58:51,053 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 10 [2022-12-14 15:58:51,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:51,054 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-12-14 15:58:51,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,054 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-12-14 15:58:51,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:58:51,054 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:51,054 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 15:58:51,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 15:58:51,055 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:58:51,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:51,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1307886524, now seen corresponding path program 1 times [2022-12-14 15:58:51,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:51,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775821510] [2022-12-14 15:58:51,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:51,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:51,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:51,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775821510] [2022-12-14 15:58:51,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775821510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:51,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:51,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:58:51,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996980652] [2022-12-14 15:58:51,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:51,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:58:51,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:51,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:58:51,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:58:51,095 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:51,128 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-12-14 15:58:51,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:58:51,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 15:58:51,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:51,130 INFO L225 Difference]: With dead ends: 28 [2022-12-14 15:58:51,130 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 15:58:51,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:58:51,131 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:51,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 40 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:58:51,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 15:58:51,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-14 15:58:51,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-12-14 15:58:51,135 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2022-12-14 15:58:51,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:51,135 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-12-14 15:58:51,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,135 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-12-14 15:58:51,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 15:58:51,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:51,136 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-12-14 15:58:51,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 15:58:51,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:58:51,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:51,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1889774359, now seen corresponding path program 1 times [2022-12-14 15:58:51,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:51,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866399940] [2022-12-14 15:58:51,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:51,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:51,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:51,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866399940] [2022-12-14 15:58:51,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866399940] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:58:51,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855902687] [2022-12-14 15:58:51,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:51,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:58:51,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:58:51,243 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:58:51,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:58:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:51,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:58:51,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:58:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:51,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:58:51,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855902687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:51,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:58:51,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2022-12-14 15:58:51,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372799674] [2022-12-14 15:58:51,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:51,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:58:51,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:51,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:58:51,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:58:51,379 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:51,414 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-12-14 15:58:51,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:58:51,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 15:58:51,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:51,415 INFO L225 Difference]: With dead ends: 28 [2022-12-14 15:58:51,415 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 15:58:51,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:58:51,416 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:51,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 24 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:58:51,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 15:58:51,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-12-14 15:58:51,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-12-14 15:58:51,420 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 11 [2022-12-14 15:58:51,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:51,420 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-12-14 15:58:51,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,420 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-12-14 15:58:51,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 15:58:51,420 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:51,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:58:51,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:58:51,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 15:58:51,622 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:58:51,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:51,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1555920495, now seen corresponding path program 1 times [2022-12-14 15:58:51,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:51,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797263659] [2022-12-14 15:58:51,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:51,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:51,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:51,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797263659] [2022-12-14 15:58:51,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797263659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:58:51,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:58:51,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:58:51,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783658100] [2022-12-14 15:58:51,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:58:51,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:58:51,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:58:51,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:58:51,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:58:51,741 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:58:51,770 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-12-14 15:58:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:58:51,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 15:58:51,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:58:51,771 INFO L225 Difference]: With dead ends: 26 [2022-12-14 15:58:51,772 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 15:58:51,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:58:51,773 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:58:51,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:58:51,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 15:58:51,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-14 15:58:51,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-12-14 15:58:51,776 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 12 [2022-12-14 15:58:51,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:58:51,777 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-12-14 15:58:51,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:58:51,777 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-12-14 15:58:51,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 15:58:51,777 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:58:51,778 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2022-12-14 15:58:51,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 15:58:51,778 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:58:51,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:58:51,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1546537068, now seen corresponding path program 1 times [2022-12-14 15:58:51,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:58:51,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73961741] [2022-12-14 15:58:51,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:51,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:58:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:51,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:51,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:58:51,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73961741] [2022-12-14 15:58:51,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73961741] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:58:51,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532992584] [2022-12-14 15:58:51,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:58:51,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:58:51,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:58:51,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:58:51,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:58:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:58:51,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:58:51,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:58:52,010 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:52,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:58:52,049 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:58:52,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532992584] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:58:52,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [825109647] [2022-12-14 15:58:52,067 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 15:58:52,067 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:58:52,070 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:58:52,075 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:58:52,076 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:58:52,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,148 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 15:58:52,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 15:58:52,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,175 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:58:52,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 15:58:52,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,309 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-12-14 15:58:52,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 184 treesize of output 217 [2022-12-14 15:58:52,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,436 INFO L321 Elim1Store]: treesize reduction 144, result has 7.1 percent of original size [2022-12-14 15:58:52,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 186 treesize of output 223 [2022-12-14 15:58:52,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,550 INFO L321 Elim1Store]: treesize reduction 107, result has 19.5 percent of original size [2022-12-14 15:58:52,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 199 [2022-12-14 15:58:52,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,662 INFO L321 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2022-12-14 15:58:52,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 220 treesize of output 221 [2022-12-14 15:58:52,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,774 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:58:52,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 41 [2022-12-14 15:58:52,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:52,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:58:52,947 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 15:58:52,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 15:58:52,987 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 15:58:52,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 193 [2022-12-14 15:58:53,106 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-12-14 15:58:53,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 203 [2022-12-14 15:58:53,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:53,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:58:53,265 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:58:53,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 221 [2022-12-14 15:58:53,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:53,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:58:53,354 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:58:53,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 228 [2022-12-14 15:58:53,629 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-12-14 15:58:53,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:58:53,681 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:58:53,793 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:58:53,830 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:58:56,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:56,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:58:56,152 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 15:58:56,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 15:58:56,247 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-12-14 15:58:56,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 175 treesize of output 207 [2022-12-14 15:58:56,304 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 15:58:56,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 183 [2022-12-14 15:58:56,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:56,321 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:58:56,422 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:58:56,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 221 [2022-12-14 15:58:56,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:58:56,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:58:56,522 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:58:56,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 228 [2022-12-14 15:58:56,734 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-12-14 15:58:56,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:58:56,789 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:58:57,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 7 [2022-12-14 15:59:04,222 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:59:11,341 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '793#(and (<= ~c~0 2147483647) (= |ULTIMATE.start_main_~#list~0#1.offset| 0) (or (and (= (select |#length| |ULTIMATE.start_append_~item~0#1.base|) 8) (= (select |#valid| |ULTIMATE.start_append_~item~0#1.base|) 1) (or (and (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0))) (or (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) |ULTIMATE.start_append_~plist#1.base|)) (not (= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4) |ULTIMATE.start_append_~plist#1.offset|))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)))) (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) |ULTIMATE.start_append_~plist#1.base|) (= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4) |ULTIMATE.start_append_~plist#1.offset|) (= |ULTIMATE.start_append_~plist#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)))))) (and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) 0)) (= (select |#length| |ULTIMATE.start_append_~item~0#1.base|) 8) (< (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) |#StackHeapBarrier|) (= (select |#valid| |ULTIMATE.start_append_~item~0#1.base|) 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0) (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4))) 1) (= (select |#length| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4))) 8) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) |ULTIMATE.start_append_~item~0#1.base|)))) (= |ULTIMATE.start_main_~#list~0#1.base| |ULTIMATE.start_append_#in~plist#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~plist#1.base|) |ULTIMATE.start_append_~plist#1.offset|) |ULTIMATE.start_append_~item~0#1.base|) (= |ULTIMATE.start_main_~length~0#1| |ULTIMATE.start_main_#t~post12#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~plist#1.base|) |ULTIMATE.start_append_~plist#1.offset|) |ULTIMATE.start_append_~item~0#1.offset|) (< 2147483646 |ULTIMATE.start_main_#t~post12#1|) (< |ULTIMATE.start_append_~item~0#1.base| |#StackHeapBarrier|) (<= |#NULL.offset| 0) (<= 1 ~c~0) (= |ULTIMATE.start_append_#in~plist#1.base| |ULTIMATE.start_append_~plist#1.base|) (<= 0 |ULTIMATE.start_main_~#list~0#1.base|) (= |ULTIMATE.start_append_#in~plist#1.offset| |ULTIMATE.start_main_~#list~0#1.offset|) (= |ULTIMATE.start_append_~item~0#1.offset| 0) (not (= |ULTIMATE.start_append_~item~0#1.base| 0)) (= |ULTIMATE.start_append_#in~plist#1.offset| |ULTIMATE.start_append_~plist#1.offset|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 15:59:11,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:59:11,341 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:59:11,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-12-14 15:59:11,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307340049] [2022-12-14 15:59:11,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:59:11,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 15:59:11,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:59:11,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 15:59:11,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-12-14 15:59:11,342 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:59:11,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:59:11,477 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2022-12-14 15:59:11,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 15:59:11,477 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 15:59:11,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:59:11,478 INFO L225 Difference]: With dead ends: 56 [2022-12-14 15:59:11,478 INFO L226 Difference]: Without dead ends: 50 [2022-12-14 15:59:11,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-12-14 15:59:11,479 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:59:11,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 72 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:59:11,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-12-14 15:59:11,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2022-12-14 15:59:11,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:59:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-12-14 15:59:11,483 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 12 [2022-12-14 15:59:11,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:59:11,483 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-12-14 15:59:11,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:59:11,483 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-12-14 15:59:11,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 15:59:11,483 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:59:11,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:59:11,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:59:11,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 15:59:11,685 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:59:11,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:59:11,686 INFO L85 PathProgramCache]: Analyzing trace with hash 988895181, now seen corresponding path program 1 times [2022-12-14 15:59:11,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:59:11,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593904544] [2022-12-14 15:59:11,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:11,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:59:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:59:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:59:11,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:59:11,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593904544] [2022-12-14 15:59:11,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593904544] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:59:11,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:59:11,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 15:59:11,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907541930] [2022-12-14 15:59:11,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:59:11,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:59:11,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:59:11,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:59:11,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:59:11,755 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:59:11,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:59:11,821 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2022-12-14 15:59:11,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:59:11,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 15:59:11,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:59:11,822 INFO L225 Difference]: With dead ends: 47 [2022-12-14 15:59:11,822 INFO L226 Difference]: Without dead ends: 39 [2022-12-14 15:59:11,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:59:11,823 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:59:11,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 47 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:59:11,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-14 15:59:11,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-14 15:59:11,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:59:11,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-12-14 15:59:11,827 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 13 [2022-12-14 15:59:11,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:59:11,827 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-12-14 15:59:11,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:59:11,827 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-12-14 15:59:11,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 15:59:11,827 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:59:11,827 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 15:59:11,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 15:59:11,828 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:59:11,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:59:11,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1801928143, now seen corresponding path program 1 times [2022-12-14 15:59:11,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:59:11,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633984480] [2022-12-14 15:59:11,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:11,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:59:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:59:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:59:11,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:59:11,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633984480] [2022-12-14 15:59:11,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633984480] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:59:11,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938969820] [2022-12-14 15:59:11,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:11,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:59:11,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:59:11,922 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:59:11,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:59:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:59:12,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 15:59:12,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:59:12,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:59:12,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:59:12,081 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:59:12,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938969820] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:59:12,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [222231283] [2022-12-14 15:59:12,083 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-12-14 15:59:12,083 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:59:12,083 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:59:12,083 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:59:12,083 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:59:12,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,103 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:59:12,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 15:59:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:59:12,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,196 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-12-14 15:59:12,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 184 treesize of output 212 [2022-12-14 15:59:12,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,310 INFO L321 Elim1Store]: treesize reduction 144, result has 7.1 percent of original size [2022-12-14 15:59:12,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 186 treesize of output 223 [2022-12-14 15:59:12,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,423 INFO L321 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2022-12-14 15:59:12,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 222 [2022-12-14 15:59:12,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,498 INFO L321 Elim1Store]: treesize reduction 107, result has 19.5 percent of original size [2022-12-14 15:59:12,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 220 treesize of output 198 [2022-12-14 15:59:12,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,548 INFO L321 Elim1Store]: treesize reduction 112, result has 21.7 percent of original size [2022-12-14 15:59:12,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 48 [2022-12-14 15:59:12,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-12-14 15:59:12,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,592 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 30 treesize of output 21 [2022-12-14 15:59:12,711 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 15:59:12,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 188 [2022-12-14 15:59:12,800 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-12-14 15:59:12,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 203 [2022-12-14 15:59:12,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:12,900 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:59:12,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 221 [2022-12-14 15:59:12,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:12,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:12,974 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:59:12,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 228 [2022-12-14 15:59:16,982 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:59:17,009 INFO L321 Elim1Store]: treesize reduction 40, result has 24.5 percent of original size [2022-12-14 15:59:17,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 66 treesize of output 86 [2022-12-14 15:59:17,039 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-12-14 15:59:17,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 11 [2022-12-14 15:59:17,068 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:17,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:59:17,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:17,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:59:17,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:17,132 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 29 treesize of output 7 [2022-12-14 15:59:17,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2022-12-14 15:59:17,176 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:59:17,197 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,232 INFO L321 Elim1Store]: treesize reduction 40, result has 24.5 percent of original size [2022-12-14 15:59:17,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 66 treesize of output 86 [2022-12-14 15:59:17,268 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-12-14 15:59:17,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 11 [2022-12-14 15:59:17,291 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,320 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,341 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,371 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,386 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,402 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,419 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,428 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,438 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,455 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,485 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,498 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,516 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,542 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,564 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,590 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,641 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,658 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,672 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,688 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,713 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,730 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,752 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,777 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,802 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,832 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,869 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,889 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,914 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,936 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,959 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:17,998 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,020 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,046 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,065 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,092 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,121 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,151 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,173 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,206 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,229 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,249 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,282 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,305 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,327 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,355 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,383 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,411 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,443 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:18,949 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-12-14 15:59:18,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 321 treesize of output 294 [2022-12-14 15:59:18,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-12-14 15:59:19,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-12-14 15:59:19,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-12-14 15:59:19,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-12-14 15:59:19,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-12-14 15:59:19,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-12-14 15:59:19,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-12-14 15:59:19,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-12-14 15:59:19,169 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-12-14 15:59:19,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 319 treesize of output 292 [2022-12-14 15:59:19,197 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:19,217 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-12-14 15:59:19,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 479 treesize of output 430 [2022-12-14 15:59:19,260 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:19,280 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-12-14 15:59:19,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 477 treesize of output 428 [2022-12-14 15:59:19,317 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:19,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-12-14 15:59:19,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-12-14 15:59:21,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:21,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:21,458 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 15:59:21,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 15:59:22,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:22,028 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:22,036 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 15:59:22,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 15:59:22,143 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-12-14 15:59:22,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 175 treesize of output 207 [2022-12-14 15:59:22,188 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 15:59:22,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-12-14 15:59:22,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:22,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:22,268 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:59:22,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 221 [2022-12-14 15:59:22,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:22,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:22,332 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:59:22,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 228 [2022-12-14 15:59:24,695 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:24,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-12-14 15:59:24,750 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:24,769 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:24,805 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:24,817 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:24,831 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:24,873 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:24,887 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:24,911 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:24,938 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:25,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 7 [2022-12-14 15:59:28,136 INFO L321 Elim1Store]: treesize reduction 36, result has 43.8 percent of original size [2022-12-14 15:59:28,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 58 [2022-12-14 15:59:28,160 INFO L321 Elim1Store]: treesize reduction 24, result has 45.5 percent of original size [2022-12-14 15:59:28,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 56 [2022-12-14 15:59:28,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:59:28,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:59:28,425 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:59:29,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [222231283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:59:29,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:59:29,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5, 5] total 17 [2022-12-14 15:59:29,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267991083] [2022-12-14 15:59:29,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:59:29,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:59:29,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:59:29,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:59:29,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:59:29,099 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:59:29,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:59:29,184 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-12-14 15:59:29,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:59:29,184 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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 16 [2022-12-14 15:59:29,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:59:29,184 INFO L225 Difference]: With dead ends: 43 [2022-12-14 15:59:29,184 INFO L226 Difference]: Without dead ends: 42 [2022-12-14 15:59:29,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:59:29,185 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:59:29,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:59:29,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-14 15:59:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2022-12-14 15:59:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:59:29,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-12-14 15:59:29,188 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 16 [2022-12-14 15:59:29,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:59:29,188 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-12-14 15:59:29,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:59:29,188 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-12-14 15:59:29,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 15:59:29,189 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:59:29,189 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:59:29,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 15:59:29,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 15:59:29,390 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 15:59:29,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:59:29,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1555012041, now seen corresponding path program 1 times [2022-12-14 15:59:29,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:59:29,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146218427] [2022-12-14 15:59:29,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:29,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:59:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:59:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:59:29,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:59:29,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146218427] [2022-12-14 15:59:29,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146218427] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:59:29,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320802060] [2022-12-14 15:59:29,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:59:29,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:59:29,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:59:29,522 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:59:29,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04f5746e-0a44-4855-a7fc-4c6ee981c82f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:59:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:59:29,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:59:29,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:59:29,696 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:59:29,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:59:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:59:29,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320802060] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:59:29,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1617829238] [2022-12-14 15:59:29,768 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 15:59:29,768 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:59:29,769 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:59:29,769 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:59:29,769 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:59:29,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,790 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:59:29,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 15:59:29,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:59:29,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,846 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:59:29,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 41 [2022-12-14 15:59:29,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,906 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-12-14 15:59:29,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 184 treesize of output 212 [2022-12-14 15:59:29,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:29,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,013 INFO L321 Elim1Store]: treesize reduction 144, result has 7.1 percent of original size [2022-12-14 15:59:30,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 186 treesize of output 223 [2022-12-14 15:59:30,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,159 INFO L321 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2022-12-14 15:59:30,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 222 [2022-12-14 15:59:30,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,232 INFO L321 Elim1Store]: treesize reduction 107, result has 19.5 percent of original size [2022-12-14 15:59:30,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 220 treesize of output 198 [2022-12-14 15:59:30,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,287 INFO L321 Elim1Store]: treesize reduction 112, result has 21.7 percent of original size [2022-12-14 15:59:30,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 48 [2022-12-14 15:59:30,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,608 INFO L321 Elim1Store]: treesize reduction 182, result has 2.7 percent of original size [2022-12-14 15:59:30,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 230 treesize of output 264 [2022-12-14 15:59:30,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:30,853 INFO L217 Elim1Store]: Index analysis took 139 ms [2022-12-14 15:59:31,792 INFO L321 Elim1Store]: treesize reduction 498, result has 14.3 percent of original size [2022-12-14 15:59:31,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 269 treesize of output 347 [2022-12-14 15:59:31,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:31,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:31,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:31,955 INFO L321 Elim1Store]: treesize reduction 211, result has 8.7 percent of original size [2022-12-14 15:59:31,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 402 treesize of output 272 [2022-12-14 15:59:31,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:31,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:31,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:31,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:32,018 INFO L321 Elim1Store]: treesize reduction 158, result has 5.4 percent of original size [2022-12-14 15:59:32,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 270 treesize of output 237 [2022-12-14 15:59:32,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:32,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:32,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 36 [2022-12-14 15:59:32,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:32,137 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 38 treesize of output 29 [2022-12-14 15:59:32,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:32,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:32,255 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 15:59:32,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 15:59:32,297 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 15:59:32,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 188 [2022-12-14 15:59:32,394 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-12-14 15:59:32,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 203 [2022-12-14 15:59:32,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:32,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:32,501 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:59:32,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 221 [2022-12-14 15:59:32,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:32,524 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:32,580 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:59:32,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 228 [2022-12-14 15:59:32,775 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-12-14 15:59:32,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:59:32,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2022-12-14 15:59:34,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:34,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:59:34,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:59:34,265 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-12-14 15:59:34,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 175 treesize of output 212 [2022-12-14 15:59:34,326 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 15:59:34,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-12-14 15:59:34,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:34,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:34,435 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:59:34,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 221 [2022-12-14 15:59:34,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:34,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:34,524 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-12-14 15:59:34,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 228 [2022-12-14 15:59:35,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:35,550 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:59:35,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:35,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-12-14 15:59:35,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:35,612 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:59:35,640 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:35,658 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:35,677 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:35,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:35,696 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-12-14 15:59:35,717 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:35,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:35,752 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:59:35,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:35,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-12-14 15:59:35,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:35,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-12-14 15:59:35,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:59:35,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-12-14 15:59:35,861 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:35,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:35,891 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:59:35,915 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:35,932 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:35,950 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:35,973 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:35,995 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:59:36,030 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-12-14 15:59:36,060 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,080 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,103 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,124 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2022-12-14 15:59:36,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2022-12-14 15:59:36,243 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,287 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,308 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,349 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,367 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,384 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,412 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,452 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:36,466 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:59:38,451 INFO L321 Elim1Store]: treesize reduction 36, result has 43.8 percent of original size [2022-12-14 15:59:38,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 58 [2022-12-14 15:59:38,470 INFO L321 Elim1Store]: treesize reduction 24, result has 45.5 percent of original size [2022-12-14 15:59:38,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 52 [2022-12-14 15:59:38,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:59:38,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:59:38,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:59:38,732 INFO L321 Elim1Store]: treesize reduction 280, result has 36.8 percent of original size [2022-12-14 15:59:38,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 165 treesize of output 282 [2022-12-14 15:59:38,905 INFO L321 Elim1Store]: treesize reduction 272, result has 36.3 percent of original size [2022-12-14 15:59:38,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 159 treesize of output 268 [2022-12-14 15:59:38,954 INFO L321 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-12-14 15:59:38,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 79 treesize of output 106 [2022-12-14 16:00:53,062 WARN L233 SmtUtils]: Spent 10.79s on a formula simplification that was a NOOP. DAG size: 900 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:01:30,800 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 895 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:02:02,333 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification that was a NOOP. DAG size: 895 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:03:00,593 WARN L233 SmtUtils]: Spent 22.48s on a formula simplification that was a NOOP. DAG size: 1289 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:03:30,163 WARN L233 SmtUtils]: Spent 14.89s on a formula simplification that was a NOOP. DAG size: 1286 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:03:44,951 WARN L233 SmtUtils]: Spent 7.45s on a formula simplification that was a NOOP. DAG size: 1279 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:05:03,354 WARN L233 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 1604 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:06:29,497 WARN L233 SmtUtils]: Spent 15.24s on a formula simplification that was a NOOP. DAG size: 1286 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:06:52,866 WARN L233 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 1279 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:07:07,880 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification that was a NOOP. DAG size: 893 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:08:39,936 WARN L233 SmtUtils]: Spent 27.92s on a formula simplification. DAG size of input: 1280 DAG size of output: 1259 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:08:53,911 WARN L233 SmtUtils]: Spent 13.96s on a formula simplification that was a NOOP. DAG size: 1262 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 16:09:09,092 WARN L233 SmtUtils]: Spent 7.35s on a formula simplification that was a NOOP. DAG size: 1260 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)