./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/a.07-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/a.07-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b6c280f9f662c2cce7ccc19dad49f017ee13d6783374dc482c07b9bbe0ddd8f5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:03:45,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:03:45,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:03:45,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:03:45,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:03:45,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:03:45,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:03:45,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:03:45,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:03:45,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:03:45,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:03:45,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:03:45,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:03:45,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:03:45,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:03:45,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:03:45,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:03:45,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:03:45,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:03:45,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:03:45,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:03:45,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:03:45,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:03:45,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:03:45,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:03:45,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:03:45,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:03:45,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:03:45,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:03:45,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:03:45,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:03:45,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:03:45,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:03:45,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:03:45,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:03:45,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:03:45,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:03:45,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:03:45,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:03:45,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:03:45,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:03:45,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-19 07:03:45,526 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:03:45,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:03:45,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:03:45,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:03:45,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:03:45,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:03:45,529 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:03:45,530 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:03:45,530 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:03:45,530 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:03:45,531 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:03:45,531 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:03:45,532 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:03:45,532 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:03:45,532 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:03:45,532 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:03:45,533 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:03:45,533 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:03:45,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:03:45,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:03:45,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:03:45,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:03:45,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:03:45,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:03:45,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:03:45,537 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:03:45,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:03:45,537 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:03:45,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:03:45,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:03:45,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:03:45,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:03:45,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:03:45,539 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:03:45,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:03:45,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:03:45,539 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:03:45,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:03:45,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:03:45,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:03:45,541 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_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6c280f9f662c2cce7ccc19dad49f017ee13d6783374dc482c07b9bbe0ddd8f5 [2022-11-19 07:03:45,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:03:45,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:03:45,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:03:45,901 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:03:45,902 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:03:45,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/termination-memory-alloca/a.07-alloca.i [2022-11-19 07:03:45,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/data/51e6398a4/427f97e49e66428298737c0c122ca428/FLAG714c57ab5 [2022-11-19 07:03:46,628 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:03:46,628 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/sv-benchmarks/c/termination-memory-alloca/a.07-alloca.i [2022-11-19 07:03:46,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/data/51e6398a4/427f97e49e66428298737c0c122ca428/FLAG714c57ab5 [2022-11-19 07:03:46,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/data/51e6398a4/427f97e49e66428298737c0c122ca428 [2022-11-19 07:03:46,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:03:46,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:03:46,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:03:46,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:03:46,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:03:46,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:03:46" (1/1) ... [2022-11-19 07:03:46,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114ceb7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:46, skipping insertion in model container [2022-11-19 07:03:46,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:03:46" (1/1) ... [2022-11-19 07:03:46,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:03:47,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:03:47,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:03:47,335 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:03:47,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:03:47,445 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:03:47,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47 WrapperNode [2022-11-19 07:03:47,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:03:47,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:03:47,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:03:47,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:03:47,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (1/1) ... [2022-11-19 07:03:47,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (1/1) ... [2022-11-19 07:03:47,507 INFO L138 Inliner]: procedures = 111, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2022-11-19 07:03:47,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:03:47,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:03:47,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:03:47,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:03:47,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (1/1) ... [2022-11-19 07:03:47,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (1/1) ... [2022-11-19 07:03:47,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (1/1) ... [2022-11-19 07:03:47,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (1/1) ... [2022-11-19 07:03:47,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (1/1) ... [2022-11-19 07:03:47,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (1/1) ... [2022-11-19 07:03:47,544 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (1/1) ... [2022-11-19 07:03:47,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (1/1) ... [2022-11-19 07:03:47,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:03:47,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:03:47,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:03:47,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:03:47,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (1/1) ... [2022-11-19 07:03:47,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:03:47,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:03:47,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:03:47,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:03:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:03:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:03:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:03:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:03:47,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:03:47,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:03:47,784 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:03:47,787 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:03:47,969 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:03:48,048 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:03:48,049 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:03:48,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:03:48 BoogieIcfgContainer [2022-11-19 07:03:48,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:03:48,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:03:48,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:03:48,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:03:48,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:03:46" (1/3) ... [2022-11-19 07:03:48,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dda0a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:03:48, skipping insertion in model container [2022-11-19 07:03:48,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:03:47" (2/3) ... [2022-11-19 07:03:48,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dda0a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:03:48, skipping insertion in model container [2022-11-19 07:03:48,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:03:48" (3/3) ... [2022-11-19 07:03:48,060 INFO L112 eAbstractionObserver]: Analyzing ICFG a.07-alloca.i [2022-11-19 07:03:48,078 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:03:48,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-19 07:03:48,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:03:48,170 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;@933a89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:03:48,170 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-19 07:03:48,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:03:48,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:03:48,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:03:48,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:03:48,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:03:48,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:03:48,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2095557, now seen corresponding path program 1 times [2022-11-19 07:03:48,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:03:48,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45824812] [2022-11-19 07:03:48,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:03:48,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:03:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:03:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:03:49,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:03:49,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45824812] [2022-11-19 07:03:49,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45824812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:03:49,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:03:49,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:03:49,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326779232] [2022-11-19 07:03:49,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:03:49,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:03:49,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:03:49,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:03:49,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:03:49,884 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:03:50,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:03:50,007 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-19 07:03:50,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:03:50,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 07:03:50,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:03:50,019 INFO L225 Difference]: With dead ends: 27 [2022-11-19 07:03:50,019 INFO L226 Difference]: Without dead ends: 20 [2022-11-19 07:03:50,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:03:50,032 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:03:50,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:03:50,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-19 07:03:50,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 14. [2022-11-19 07:03:50,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:03:50,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-19 07:03:50,067 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2022-11-19 07:03:50,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:03:50,067 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-19 07:03:50,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:03:50,068 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-19 07:03:50,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:03:50,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:03:50,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:03:50,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:03:50,071 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:03:50,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:03:50,072 INFO L85 PathProgramCache]: Analyzing trace with hash 64962319, now seen corresponding path program 1 times [2022-11-19 07:03:50,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:03:50,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806430107] [2022-11-19 07:03:50,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:03:50,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:03:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:03:50,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:03:50,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:03:50,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806430107] [2022-11-19 07:03:50,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806430107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:03:50,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:03:50,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:03:50,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428988688] [2022-11-19 07:03:50,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:03:50,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:03:50,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:03:50,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:03:50,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:03:50,535 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:03:50,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:03:50,582 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-19 07:03:50,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:03:50,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 07:03:50,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:03:50,584 INFO L225 Difference]: With dead ends: 14 [2022-11-19 07:03:50,584 INFO L226 Difference]: Without dead ends: 13 [2022-11-19 07:03:50,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:03:50,586 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:03:50,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:03:50,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-19 07:03:50,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-19 07:03:50,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 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) [2022-11-19 07:03:50,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-19 07:03:50,593 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 5 [2022-11-19 07:03:50,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:03:50,593 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-19 07:03:50,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:03:50,594 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-19 07:03:50,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:03:50,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:03:50,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:03:50,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:03:50,595 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:03:50,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:03:50,595 INFO L85 PathProgramCache]: Analyzing trace with hash 2013831943, now seen corresponding path program 1 times [2022-11-19 07:03:50,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:03:50,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790873161] [2022-11-19 07:03:50,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:03:50,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:03:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:03:51,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:03:51,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:03:51,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790873161] [2022-11-19 07:03:51,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790873161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:03:51,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:03:51,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:03:51,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47287292] [2022-11-19 07:03:51,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:03:51,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:03:51,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:03:51,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:03:51,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:03:51,231 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:03:51,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:03:51,370 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-11-19 07:03:51,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:03:51,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 07:03:51,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:03:51,371 INFO L225 Difference]: With dead ends: 13 [2022-11-19 07:03:51,372 INFO L226 Difference]: Without dead ends: 12 [2022-11-19 07:03:51,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:03:51,379 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:03:51,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:03:51,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-19 07:03:51,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-19 07:03:51,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 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) [2022-11-19 07:03:51,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 07:03:51,388 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2022-11-19 07:03:51,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:03:51,389 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 07:03:51,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:03:51,389 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 07:03:51,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:03:51,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:03:51,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:03:51,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:03:51,390 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:03:51,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:03:51,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1995719151, now seen corresponding path program 1 times [2022-11-19 07:03:51,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:03:51,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871927134] [2022-11-19 07:03:51,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:03:51,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:03:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:03:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:03:51,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:03:51,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871927134] [2022-11-19 07:03:51,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871927134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:03:51,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:03:51,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:03:51,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995913030] [2022-11-19 07:03:51,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:03:51,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:03:51,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:03:51,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:03:51,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:03:51,885 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:03:51,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:03:51,919 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-19 07:03:51,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:03:51,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 07:03:51,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:03:51,920 INFO L225 Difference]: With dead ends: 12 [2022-11-19 07:03:51,921 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 07:03:51,921 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 [2022-11-19 07:03:51,932 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:03:51,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:03:51,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 07:03:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-19 07:03:51,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:03:51,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-11-19 07:03:51,939 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2022-11-19 07:03:51,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:03:51,940 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2022-11-19 07:03:51,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:03:51,940 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-11-19 07:03:51,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:03:51,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:03:51,941 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:03:51,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:03:51,942 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-19 07:03:51,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:03:51,942 INFO L85 PathProgramCache]: Analyzing trace with hash 763120856, now seen corresponding path program 1 times [2022-11-19 07:03:51,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:03:51,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897881044] [2022-11-19 07:03:51,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:03:51,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:03:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:03:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:03:52,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:03:52,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897881044] [2022-11-19 07:03:52,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897881044] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:03:52,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887697178] [2022-11-19 07:03:52,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:03:52,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:03:52,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:03:52,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:03:52,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:03:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:03:53,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-19 07:03:53,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:03:53,165 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-19 07:03:53,166 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 2118 treesize of output 1616 [2022-11-19 07:03:53,652 INFO L321 Elim1Store]: treesize reduction 369, result has 22.6 percent of original size [2022-11-19 07:03:53,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 1608 treesize of output 1173 [2022-11-19 07:03:53,731 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 8 treesize of output 7 [2022-11-19 07:03:53,800 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 12 treesize of output 11 [2022-11-19 07:03:53,852 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 12 treesize of output 11 [2022-11-19 07:03:54,064 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 12 treesize of output 11 [2022-11-19 07:03:54,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 65 [2022-11-19 07:03:54,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:03:54,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:03:54,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-11-19 07:03:54,306 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:03:54,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:03:54,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:03:54,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-11-19 07:03:54,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:03:54,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:03:54,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-11-19 07:03:54,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-19 07:04:00,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:00,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:00,050 INFO L321 Elim1Store]: treesize reduction 24, result has 25.0 percent of original size [2022-11-19 07:04:00,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 514 treesize of output 438 [2022-11-19 07:04:00,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 382 treesize of output 356 [2022-11-19 07:04:00,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 352 treesize of output 350 [2022-11-19 07:04:00,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 350 treesize of output 348 [2022-11-19 07:04:00,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 348 treesize of output 346 [2022-11-19 07:04:00,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 346 treesize of output 344 [2022-11-19 07:04:00,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 344 treesize of output 342 [2022-11-19 07:04:00,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 342 treesize of output 340 [2022-11-19 07:04:00,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:00,825 INFO L321 Elim1Store]: treesize reduction 38, result has 32.1 percent of original size [2022-11-19 07:04:00,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50922 treesize of output 49711 [2022-11-19 07:04:02,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:02,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:02,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25770 treesize of output 25096 [2022-11-19 07:04:05,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:06,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:06,875 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:08,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:08,118 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:08,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:08,398 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:08,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:08,476 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:08,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:08,525 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:08,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:08,548 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:08,558 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:08,562 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:09,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:09,054 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:09,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:09,565 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:10,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:10,542 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:11,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:11,449 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:11,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:11,585 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:11,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:11,774 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:12,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:12,816 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:13,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-19 07:04:13,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 160 [2022-11-19 07:04:13,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:13,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 40 [2022-11-19 07:04:13,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2022-11-19 07:04:13,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-19 07:04:13,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-19 07:04:13,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:04:13,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 40 [2022-11-19 07:04:13,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2022-11-19 07:04:13,236 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:13,238 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:17,066 INFO L321 Elim1Store]: treesize reduction 88, result has 43.9 percent of original size [2022-11-19 07:04:17,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 128954 treesize of output 124405 [2022-11-19 07:04:20,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:20,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:20,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1197 treesize of output 1084 [2022-11-19 07:04:20,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:20,537 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:20,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:20,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:20,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:21,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:21,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:21,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:42,464 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:42,486 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:43,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:46,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-11-19 07:04:46,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-19 07:04:46,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-11-19 07:04:46,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-11-19 07:04:46,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-11-19 07:04:47,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:47,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2022-11-19 07:04:47,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:47,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-11-19 07:04:47,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-19 07:04:47,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:47,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2022-11-19 07:04:49,259 INFO L321 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2022-11-19 07:04:49,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 78 [2022-11-19 07:04:49,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-19 07:04:49,358 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:49,708 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-11-19 07:04:49,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 31 [2022-11-19 07:04:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:49,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:04:50,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:04:50,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887697178] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:04:50,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [98395890] [2022-11-19 07:04:50,135 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 07:04:50,136 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:04:50,139 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:04:50,144 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:04:50,145 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:04:50,258 INFO L321 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2022-11-19 07:04:50,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 21 [2022-11-19 07:04:50,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:50,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:50,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:50,351 INFO L321 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2022-11-19 07:04:50,351 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 3 case distinctions, treesize of input 123 treesize of output 50 [2022-11-19 07:04:50,467 INFO L321 Elim1Store]: treesize reduction 141, result has 10.2 percent of original size [2022-11-19 07:04:50,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 65 treesize of output 65 [2022-11-19 07:04:50,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:50,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:50,754 INFO L321 Elim1Store]: treesize reduction 44, result has 41.3 percent of original size [2022-11-19 07:04:50,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 56 treesize of output 54 [2022-11-19 07:04:50,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:50,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:50,882 INFO L321 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2022-11-19 07:04:50,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 91 treesize of output 73 [2022-11-19 07:04:51,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:51,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:51,129 INFO L321 Elim1Store]: treesize reduction 44, result has 41.3 percent of original size [2022-11-19 07:04:51,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 56 treesize of output 54 [2022-11-19 07:04:51,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:51,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:04:51,258 INFO L321 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2022-11-19 07:04:51,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 91 treesize of output 73 [2022-11-19 07:04:51,333 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:04:53,582 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '255#(and (<= 0 |ULTIMATE.start_test_fun_#t~malloc5#1.offset|) (<= |ULTIMATE.start_test_fun_#t~malloc4#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.offset|) (<= |ULTIMATE.start_test_fun_#t~malloc2#1.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~y#1|)) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_test_fun_~z_ref~0#1.offset|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (not (<= |ULTIMATE.start_test_fun_#t~mem11#1| 2147483646)) (<= 0 |ULTIMATE.start_test_fun_#t~malloc2#1.base|) (<= |ULTIMATE.start_test_fun_~y#1| 2147483647) (<= |ULTIMATE.start_test_fun_~x#1| 2147483647) (< (select (select |#memory_int| |ULTIMATE.start_test_fun_~z_ref~0#1.base|) |ULTIMATE.start_test_fun_~z_ref~0#1.offset|) (select (select |#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) |ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (< (select (select |#memory_int| |ULTIMATE.start_test_fun_~y_ref~0#1.base|) |ULTIMATE.start_test_fun_~y_ref~0#1.offset|) (select (select |#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) |ULTIMATE.start_test_fun_~x_ref~0#1.offset|)) (<= |ULTIMATE.start_main_#t~nondet14#1| 2147483647) (<= 0 (+ |ULTIMATE.start_test_fun_~y#1| 2147483648)) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet15#1|)) (= (select (select |#memory_int| |ULTIMATE.start_test_fun_~y_ref~0#1.base|) |ULTIMATE.start_test_fun_~y_ref~0#1.offset|) |ULTIMATE.start_test_fun_#t~mem11#1|) (<= 0 (+ |ULTIMATE.start_test_fun_~x#1| 2147483648)) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_test_fun_~y_ref~0#1.offset| 0) (<= 0 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_~y_ref~0#1.base|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.offset|) (<= 0 |ULTIMATE.start_test_fun_~x_ref~0#1.offset|) (<= |ULTIMATE.start_test_fun_#in~y#1| 2147483647) (<= 0 |ULTIMATE.start_test_fun_~z_ref~0#1.base|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~z#1|)) (<= |ULTIMATE.start_test_fun_#t~malloc3#1.offset| 0) (<= |ULTIMATE.start_test_fun_#in~z#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet16#1|)) (<= |ULTIMATE.start_main_#t~nondet16#1| 2147483647) (<= 0 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= 0 (+ |ULTIMATE.start_test_fun_~z#1| 2147483648)) (<= |ULTIMATE.start_test_fun_~c~0#1.offset| 0) (<= |ULTIMATE.start_test_fun_~z_ref~0#1.offset| 0) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_test_fun_~c~0#1.offset|) (<= 0 (+ 2147483648 |ULTIMATE.start_test_fun_#in~x#1|)) (<= 0 |ULTIMATE.start_test_fun_~y_ref~0#1.offset|) (<= |ULTIMATE.start_test_fun_#t~malloc5#1.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_main_#t~nondet14#1|)) (<= |ULTIMATE.start_test_fun_~x_ref~0#1.offset| 0) (<= |ULTIMATE.start_test_fun_#in~x#1| 2147483647) (<= |ULTIMATE.start_test_fun_~z#1| 2147483647) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc5#1.base|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_test_fun_#t~malloc4#1.offset|) (<= |ULTIMATE.start_main_#t~nondet15#1| 2147483647))' at error location [2022-11-19 07:04:53,582 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:04:53,583 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:04:53,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-11-19 07:04:53,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864862595] [2022-11-19 07:04:53,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:04:53,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 07:04:53,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:04:53,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 07:04:53,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=399, Unknown=15, NotChecked=0, Total=506 [2022-11-19 07:04:53,585 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 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) [2022-11-19 07:04:55,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:04:55,307 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 07:04:55,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:04:55,307 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 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) Word has length 10 [2022-11-19 07:04:55,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:04:55,308 INFO L225 Difference]: With dead ends: 16 [2022-11-19 07:04:55,308 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:04:55,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=191, Invalid=772, Unknown=29, NotChecked=0, Total=992 [2022-11-19 07:04:55,309 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:04:55,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2022-11-19 07:04:55,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:04:55,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:04:55,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:04:55,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:04:55,310 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-11-19 07:04:55,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:04:55,310 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:04:55,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 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) [2022-11-19 07:04:55,311 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:04:55,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:04:55,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-19 07:04:55,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-19 07:04:55,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-19 07:04:55,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-19 07:04:55,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:04:55,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:04:55,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:04:55,584 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-19 07:04:55,584 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:04:55,585 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 559) no Hoare annotation was computed. [2022-11-19 07:04:55,585 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-11-19 07:04:55,585 INFO L899 garLoopResultBuilder]: For program point L558-1(line 558) no Hoare annotation was computed. [2022-11-19 07:04:55,585 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-19 07:04:55,585 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 559) no Hoare annotation was computed. [2022-11-19 07:04:55,585 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:04:55,585 INFO L899 garLoopResultBuilder]: For program point L559(line 559) no Hoare annotation was computed. [2022-11-19 07:04:55,585 INFO L899 garLoopResultBuilder]: For program point L559-1(line 559) no Hoare annotation was computed. [2022-11-19 07:04:55,586 INFO L899 garLoopResultBuilder]: For program point L557-3(lines 557 560) no Hoare annotation was computed. [2022-11-19 07:04:55,586 INFO L895 garLoopResultBuilder]: At program point L557-5(lines 557 560) the Hoare annotation is: (and (not (= |ULTIMATE.start_test_fun_~y_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (not (= |ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (not (= |ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_test_fun_~z_ref~0#1.base|) |ULTIMATE.start_test_fun_~z_ref~0#1.offset|) 2147483648)) (<= (select (select |#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|) |ULTIMATE.start_test_fun_~x_ref~0#1.offset|) 2147483647) (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_test_fun_~y_ref~0#1.base|) |ULTIMATE.start_test_fun_~y_ref~0#1.offset|) 2147483648))) [2022-11-19 07:04:55,586 INFO L902 garLoopResultBuilder]: At program point L557-6(lines 557 560) the Hoare annotation is: true [2022-11-19 07:04:55,589 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-19 07:04:55,591 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:04:55,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:04:55 BoogieIcfgContainer [2022-11-19 07:04:55,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:04:55,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:04:55,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:04:55,607 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:04:55,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:03:48" (3/4) ... [2022-11-19 07:04:55,610 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:04:55,620 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-19 07:04:55,620 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 07:04:55,620 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 07:04:55,620 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:04:55,655 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:04:55,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:04:55,656 INFO L158 Benchmark]: Toolchain (without parser) took 68721.00ms. Allocated memory was 109.1MB in the beginning and 650.1MB in the end (delta: 541.1MB). Free memory was 76.2MB in the beginning and 488.6MB in the end (delta: -412.4MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. [2022-11-19 07:04:55,656 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:04:55,656 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.50ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 76.0MB in the beginning and 102.5MB in the end (delta: -26.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:04:55,657 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.92ms. Allocated memory is still 132.1MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:04:55,657 INFO L158 Benchmark]: Boogie Preprocessor took 38.50ms. Allocated memory is still 132.1MB. Free memory was 100.4MB in the beginning and 99.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:04:55,657 INFO L158 Benchmark]: RCFGBuilder took 503.51ms. Allocated memory is still 132.1MB. Free memory was 99.1MB in the beginning and 84.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 07:04:55,658 INFO L158 Benchmark]: TraceAbstraction took 67552.62ms. Allocated memory was 132.1MB in the beginning and 650.1MB in the end (delta: 518.0MB). Free memory was 83.6MB in the beginning and 491.8MB in the end (delta: -408.1MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. [2022-11-19 07:04:55,658 INFO L158 Benchmark]: Witness Printer took 48.84ms. Allocated memory is still 650.1MB. Free memory was 491.8MB in the beginning and 488.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:04:55,660 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.50ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 76.0MB in the beginning and 102.5MB in the end (delta: -26.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.92ms. Allocated memory is still 132.1MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.50ms. Allocated memory is still 132.1MB. Free memory was 100.4MB in the beginning and 99.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 503.51ms. Allocated memory is still 132.1MB. Free memory was 99.1MB in the beginning and 84.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 67552.62ms. Allocated memory was 132.1MB in the beginning and 650.1MB in the end (delta: 518.0MB). Free memory was 83.6MB in the beginning and 491.8MB in the end (delta: -408.1MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. * Witness Printer took 48.84ms. Allocated memory is still 650.1MB. Free memory was 491.8MB in the beginning and 488.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 67.5s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 23 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 12 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=1, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 39 HoareAnnotationTreeSize, 2 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 890 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 60.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 45 ConstructedInterpolants, 13 QuantifiedInterpolants, 3992 SizeOfPredicates, 22 NumberOfNonLiveVariables, 176 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 1/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: ((((!(y_ref == x_ref) && !(z_ref == y_ref)) && !(z_ref == x_ref)) && 0 <= unknown-#memory_int-unknown[z_ref][z_ref] + 2147483648) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483647) && 0 <= unknown-#memory_int-unknown[y_ref][y_ref] + 2147483648 - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:04:55,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8586c1e9-b65c-4a70-b6ed-15cdba54e373/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE