./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/tcpy.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/tcpy.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:42:50,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:42:50,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:42:50,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:42:50,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:42:50,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:42:50,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:42:50,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:42:50,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:42:50,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:42:50,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:42:50,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:42:50,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:42:50,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:42:50,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:42:50,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:42:50,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:42:50,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:42:50,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:42:50,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:42:50,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:42:50,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:42:50,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:42:50,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:42:50,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:42:50,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:42:50,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:42:50,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:42:50,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:42:50,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:42:50,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:42:50,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:42:50,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:42:50,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:42:50,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:42:50,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:42:50,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:42:50,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:42:50,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:42:50,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:42:50,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:42:50,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:42:50,598 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:42:50,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:42:50,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:42:50,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:42:50,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:42:50,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:42:50,600 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:42:50,600 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:42:50,601 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:42:50,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:42:50,601 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:42:50,601 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:42:50,601 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:42:50,602 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:42:50,602 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:42:50,602 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:42:50,602 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:42:50,603 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:42:50,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:42:50,604 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:42:50,604 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:42:50,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:42:50,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:42:50,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:42:50,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:42:50,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:42:50,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:42:50,605 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:42:50,605 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:42:50,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:42:50,606 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:42:50,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:42:50,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:42:50,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:42:50,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:42:50,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:42:50,607 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:42:50,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:42:50,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:42:50,608 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:42:50,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:42:50,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:42:50,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:42:50,609 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_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 [2022-11-22 01:42:50,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:42:50,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:42:50,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:42:50,903 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:42:50,904 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:42:50,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-tiling/tcpy.c [2022-11-22 01:42:53,956 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:42:54,215 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:42:54,216 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/sv-benchmarks/c/array-tiling/tcpy.c [2022-11-22 01:42:54,222 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/data/76ea9957b/fd943445bb9e48fdac6df00cf138d951/FLAG2da0ee07d [2022-11-22 01:42:54,237 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/data/76ea9957b/fd943445bb9e48fdac6df00cf138d951 [2022-11-22 01:42:54,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:42:54,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:42:54,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:42:54,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:42:54,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:42:54,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@308a5c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54, skipping insertion in model container [2022-11-22 01:42:54,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:42:54,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:42:54,413 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-22 01:42:54,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:42:54,442 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:42:54,455 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-22 01:42:54,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:42:54,475 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:42:54,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54 WrapperNode [2022-11-22 01:42:54,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:42:54,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:42:54,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:42:54,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:42:54,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,517 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2022-11-22 01:42:54,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:42:54,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:42:54,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:42:54,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:42:54,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,560 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:42:54,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:42:54,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:42:54,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:42:54,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (1/1) ... [2022-11-22 01:42:54,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:42:54,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:42:54,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:42:54,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:42:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:42:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:42:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:42:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:42:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:42:54,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:42:54,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:42:54,728 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:42:54,730 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:42:54,976 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:42:55,019 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:42:55,019 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-22 01:42:55,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:42:55 BoogieIcfgContainer [2022-11-22 01:42:55,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:42:55,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:42:55,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:42:55,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:42:55,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:42:54" (1/3) ... [2022-11-22 01:42:55,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a4aeec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:42:55, skipping insertion in model container [2022-11-22 01:42:55,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:54" (2/3) ... [2022-11-22 01:42:55,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27a4aeec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:42:55, skipping insertion in model container [2022-11-22 01:42:55,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:42:55" (3/3) ... [2022-11-22 01:42:55,036 INFO L112 eAbstractionObserver]: Analyzing ICFG tcpy.c [2022-11-22 01:42:55,056 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:42:55,056 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-22 01:42:55,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:42:55,123 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;@6d466f7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:42:55,123 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-22 01:42:55,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.88) internal successors, (47), 41 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:42:55,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:55,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:42:55,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-22 01:42:55,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:55,143 INFO L85 PathProgramCache]: Analyzing trace with hash 4208638, now seen corresponding path program 1 times [2022-11-22 01:42:55,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:55,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509296916] [2022-11-22 01:42:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:55,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:42:55,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:55,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509296916] [2022-11-22 01:42:55,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509296916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:55,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:55,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:42:55,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168447255] [2022-11-22 01:42:55,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:55,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:42:55,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:55,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:42:55,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:42:55,603 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.88) internal successors, (47), 41 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) 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) [2022-11-22 01:42:55,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:55,832 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2022-11-22 01:42:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:42:55,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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 [2022-11-22 01:42:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:55,847 INFO L225 Difference]: With dead ends: 91 [2022-11-22 01:42:55,847 INFO L226 Difference]: Without dead ends: 74 [2022-11-22 01:42:55,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:42:55,863 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 37 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:55,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 54 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:42:55,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-22 01:42:55,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 42. [2022-11-22 01:42:55,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.7307692307692308) internal successors, (45), 41 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:55,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-11-22 01:42:55,904 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 4 [2022-11-22 01:42:55,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:55,905 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-11-22 01:42:55,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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) [2022-11-22 01:42:55,905 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-11-22 01:42:55,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:42:55,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:55,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:42:55,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:42:55,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-22 01:42:55,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:55,908 INFO L85 PathProgramCache]: Analyzing trace with hash 130480464, now seen corresponding path program 1 times [2022-11-22 01:42:55,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:55,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302312540] [2022-11-22 01:42:55,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:55,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:56,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:42:56,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:56,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302312540] [2022-11-22 01:42:56,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302312540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:56,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:56,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:42:56,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777352385] [2022-11-22 01:42:56,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:56,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:42:56,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:56,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:42:56,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:56,013 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:56,104 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2022-11-22 01:42:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:42:56,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:42:56,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:56,108 INFO L225 Difference]: With dead ends: 74 [2022-11-22 01:42:56,109 INFO L226 Difference]: Without dead ends: 42 [2022-11-22 01:42:56,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:56,116 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:56,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 44 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:42:56,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-22 01:42:56,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-22 01:42:56,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:56,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-11-22 01:42:56,131 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 5 [2022-11-22 01:42:56,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:56,132 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-11-22 01:42:56,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:56,137 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-11-22 01:42:56,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:42:56,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:56,138 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-22 01:42:56,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:42:56,139 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-22 01:42:56,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:56,148 INFO L85 PathProgramCache]: Analyzing trace with hash 825534426, now seen corresponding path program 1 times [2022-11-22 01:42:56,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:56,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837075949] [2022-11-22 01:42:56,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:56,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:42:56,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:56,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837075949] [2022-11-22 01:42:56,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837075949] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:42:56,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79737742] [2022-11-22 01:42:56,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:56,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:42:56,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:42:56,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:42:56,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:42:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:56,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:42:56,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:56,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:42:56,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:56,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:42:56,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79737742] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:56,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1582803807] [2022-11-22 01:42:56,588 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-22 01:42:56,588 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:42:56,592 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:42:56,598 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:42:56,598 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:42:56,867 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-22 01:42:56,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-22 01:42:56,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-22 01:42:57,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-22 01:42:57,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:57,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:57,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:57,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:57,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:42:57,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:42:57,482 INFO L321 Elim1Store]: treesize reduction 126, result has 21.7 percent of original size [2022-11-22 01:42:57,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 26 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 13 case distinctions, treesize of input 425 treesize of output 417 [2022-11-22 01:42:58,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:42:58,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:42:58,152 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:42:58,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1582803807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:58,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:42:58,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5] total 14 [2022-11-22 01:42:58,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950033507] [2022-11-22 01:42:58,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:58,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:42:58,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:58,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:42:58,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:42:58,394 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-11-22 01:42:58,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:58,728 INFO L93 Difference]: Finished difference Result 73 states and 76 transitions. [2022-11-22 01:42:58,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:42:58,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 7 [2022-11-22 01:42:58,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:58,730 INFO L225 Difference]: With dead ends: 73 [2022-11-22 01:42:58,730 INFO L226 Difference]: Without dead ends: 65 [2022-11-22 01:42:58,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:42:58,732 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:58,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 36 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:42:58,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-22 01:42:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 48. [2022-11-22 01:42:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.588235294117647) internal successors, (54), 47 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2022-11-22 01:42:58,739 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 7 [2022-11-22 01:42:58,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:58,739 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2022-11-22 01:42:58,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-11-22 01:42:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-11-22 01:42:58,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:42:58,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:58,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:58,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:42:58,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:42:58,946 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-22 01:42:58,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:58,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1760667557, now seen corresponding path program 1 times [2022-11-22 01:42:58,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:58,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993492784] [2022-11-22 01:42:58,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:58,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:59,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:42:59,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:59,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993492784] [2022-11-22 01:42:59,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993492784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:59,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:59,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:42:59,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380835815] [2022-11-22 01:42:59,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:59,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:42:59,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:59,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:42:59,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:42:59,043 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-11-22 01:42:59,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:59,133 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2022-11-22 01:42:59,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:42:59,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-22 01:42:59,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:59,137 INFO L225 Difference]: With dead ends: 70 [2022-11-22 01:42:59,137 INFO L226 Difference]: Without dead ends: 59 [2022-11-22 01:42:59,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:42:59,142 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 53 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:59,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 19 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:42:59,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-22 01:42:59,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2022-11-22 01:42:59,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 47 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:59,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2022-11-22 01:42:59,161 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 12 [2022-11-22 01:42:59,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:59,161 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2022-11-22 01:42:59,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-11-22 01:42:59,163 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2022-11-22 01:42:59,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:42:59,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:59,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:59,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:42:59,167 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-22 01:42:59,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:59,168 INFO L85 PathProgramCache]: Analyzing trace with hash -677055664, now seen corresponding path program 1 times [2022-11-22 01:42:59,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:59,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497835589] [2022-11-22 01:42:59,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:59,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:42:59,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:59,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497835589] [2022-11-22 01:42:59,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497835589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:59,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:59,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:42:59,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966683819] [2022-11-22 01:42:59,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:59,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:42:59,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:59,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:42:59,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:42:59,279 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:59,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:59,351 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2022-11-22 01:42:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:42:59,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-22 01:42:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:59,355 INFO L225 Difference]: With dead ends: 59 [2022-11-22 01:42:59,355 INFO L226 Difference]: Without dead ends: 57 [2022-11-22 01:42:59,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:42:59,356 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:59,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 52 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:42:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-22 01:42:59,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2022-11-22 01:42:59,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:59,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2022-11-22 01:42:59,365 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 19 [2022-11-22 01:42:59,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:59,365 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2022-11-22 01:42:59,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:59,366 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2022-11-22 01:42:59,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 01:42:59,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:59,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:59,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:42:59,367 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-22 01:42:59,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:59,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2110428301, now seen corresponding path program 1 times [2022-11-22 01:42:59,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:59,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644358888] [2022-11-22 01:42:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:59,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:59,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:42:59,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:59,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644358888] [2022-11-22 01:42:59,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644358888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:59,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:59,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:42:59,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364440581] [2022-11-22 01:42:59,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:59,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:42:59,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:59,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:42:59,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:59,477 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:59,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:59,519 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2022-11-22 01:42:59,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:42:59,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-22 01:42:59,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:59,520 INFO L225 Difference]: With dead ends: 50 [2022-11-22 01:42:59,521 INFO L226 Difference]: Without dead ends: 49 [2022-11-22 01:42:59,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:59,522 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:59,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 11 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:42:59,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-22 01:42:59,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-22 01:42:59,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 48 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:59,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2022-11-22 01:42:59,528 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 21 [2022-11-22 01:42:59,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:59,528 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2022-11-22 01:42:59,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:42:59,529 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2022-11-22 01:42:59,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 01:42:59,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:59,529 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:59,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:42:59,530 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-22 01:42:59,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:59,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2038165578, now seen corresponding path program 1 times [2022-11-22 01:42:59,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:59,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109098164] [2022-11-22 01:42:59,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:59,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:59,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:42:59,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:59,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109098164] [2022-11-22 01:42:59,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109098164] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:42:59,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736661161] [2022-11-22 01:42:59,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:59,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:42:59,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:42:59,653 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:42:59,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:42:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:59,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:42:59,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:59,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:42:59,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:42:59,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736661161] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:59,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [30295657] [2022-11-22 01:42:59,846 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-22 01:42:59,846 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:42:59,846 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:42:59,846 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:42:59,847 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:43:00,005 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-22 01:43:00,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-22 01:43:00,165 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-22 01:43:00,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-22 01:43:00,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-22 01:43:00,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 27 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 117 [2022-11-22 01:43:00,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:00,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:00,839 INFO L321 Elim1Store]: treesize reduction 107, result has 6.1 percent of original size [2022-11-22 01:43:00,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 33 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 477 treesize of output 439 [2022-11-22 01:43:01,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:43:01,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:01,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:01,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:01,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:01,324 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-22 01:43:01,325 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 3 case distinctions, treesize of input 46 treesize of output 53 [2022-11-22 01:43:01,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:01,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:01,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:01,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:02,057 INFO L321 Elim1Store]: treesize reduction 1117, result has 13.5 percent of original size [2022-11-22 01:43:02,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 590 treesize of output 677 [2022-11-22 01:43:03,022 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:43:03,022 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 1358 treesize of output 1341 [2022-11-22 01:43:03,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:03,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:03,662 INFO L321 Elim1Store]: treesize reduction 45, result has 33.8 percent of original size [2022-11-22 01:43:03,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 1324 treesize of output 1298 [2022-11-22 01:43:04,469 INFO L321 Elim1Store]: treesize reduction 52, result has 28.8 percent of original size [2022-11-22 01:43:04,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 675 treesize of output 670 [2022-11-22 01:43:17,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:17,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:17,324 INFO L321 Elim1Store]: treesize reduction 362, result has 13.6 percent of original size [2022-11-22 01:43:17,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 129 [2022-11-22 01:43:17,369 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:43:17,370 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 85 [2022-11-22 01:43:17,388 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-22 01:43:17,389 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 27 [2022-11-22 01:43:17,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:17,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:17,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 19 [2022-11-22 01:43:17,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:17,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:17,828 INFO L321 Elim1Store]: treesize reduction 358, result has 14.6 percent of original size [2022-11-22 01:43:17,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 133 [2022-11-22 01:43:17,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 21 [2022-11-22 01:43:17,850 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 21 treesize of output 11 [2022-11-22 01:43:18,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:18,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:18,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:18,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:18,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:18,065 INFO L321 Elim1Store]: treesize reduction 84, result has 28.8 percent of original size [2022-11-22 01:43:18,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 279 [2022-11-22 01:43:18,124 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:43:20,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [30295657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:43:20,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:43:20,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5, 5, 5] total 21 [2022-11-22 01:43:20,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276323717] [2022-11-22 01:43:20,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:43:20,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:43:20,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:43:20,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:43:20,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=350, Unknown=1, NotChecked=0, Total=420 [2022-11-22 01:43:20,143 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 13 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:22,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:43:22,570 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2022-11-22 01:43:22,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:43:22,571 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-22 01:43:22,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:43:22,572 INFO L225 Difference]: With dead ends: 54 [2022-11-22 01:43:22,572 INFO L226 Difference]: Without dead ends: 45 [2022-11-22 01:43:22,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 49 SyntacticMatches, 7 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=122, Invalid=579, Unknown=1, NotChecked=0, Total=702 [2022-11-22 01:43:22,573 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 51 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:43:22,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 28 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:43:22,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-22 01:43:22,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-11-22 01:43:22,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:22,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-11-22 01:43:22,580 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 24 [2022-11-22 01:43:22,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:43:22,580 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-11-22 01:43:22,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:22,581 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-11-22 01:43:22,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 01:43:22,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:43:22,581 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:43:22,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:43:22,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:22,782 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-22 01:43:22,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:43:22,783 INFO L85 PathProgramCache]: Analyzing trace with hash -172065258, now seen corresponding path program 1 times [2022-11-22 01:43:22,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:43:22,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111781850] [2022-11-22 01:43:22,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:22,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:43:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:22,880 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:43:22,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:43:22,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111781850] [2022-11-22 01:43:22,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111781850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:43:22,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:43:22,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:43:22,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953555064] [2022-11-22 01:43:22,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:43:22,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:43:22,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:43:22,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:43:22,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:43:22,883 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:22,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:43:22,948 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2022-11-22 01:43:22,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:43:22,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 26 [2022-11-22 01:43:22,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:43:22,950 INFO L225 Difference]: With dead ends: 47 [2022-11-22 01:43:22,950 INFO L226 Difference]: Without dead ends: 45 [2022-11-22 01:43:22,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:43:22,951 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 17 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:43:22,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 30 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:43:22,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-22 01:43:22,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-11-22 01:43:22,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-11-22 01:43:22,965 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 26 [2022-11-22 01:43:22,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:43:22,965 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-11-22 01:43:22,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:22,965 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-11-22 01:43:22,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 01:43:22,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:43:22,967 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:43:22,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:43:22,967 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-22 01:43:22,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:43:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash -2099992083, now seen corresponding path program 1 times [2022-11-22 01:43:22,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:43:22,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345705904] [2022-11-22 01:43:22,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:22,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:43:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:23,079 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:43:23,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:43:23,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345705904] [2022-11-22 01:43:23,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345705904] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:43:23,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100258950] [2022-11-22 01:43:23,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:23,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:23,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:43:23,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:43:23,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:43:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:23,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:43:23,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:43:23,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:43:23,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100258950] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:23,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1995378706] [2022-11-22 01:43:23,256 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-22 01:43:23,257 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:43:23,257 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:43:23,257 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:43:23,257 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:43:23,396 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-22 01:43:23,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-22 01:43:23,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-22 01:43:23,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-22 01:43:23,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 27 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 117 [2022-11-22 01:43:23,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:23,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:23,819 INFO L321 Elim1Store]: treesize reduction 107, result has 6.1 percent of original size [2022-11-22 01:43:23,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 33 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 477 treesize of output 439 [2022-11-22 01:43:23,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:43:24,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:24,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:24,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:24,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:24,118 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-22 01:43:24,119 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 3 case distinctions, treesize of input 46 treesize of output 53 [2022-11-22 01:43:24,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:24,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:24,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:24,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:24,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:24,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:24,474 INFO L321 Elim1Store]: treesize reduction 838, result has 14.2 percent of original size [2022-11-22 01:43:24,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 611 treesize of output 649 [2022-11-22 01:43:24,651 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:43:24,724 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:43:24,725 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 309 treesize of output 298 [2022-11-22 01:43:24,780 INFO L321 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2022-11-22 01:43:24,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 235 treesize of output 194 [2022-11-22 01:43:24,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:24,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:24,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:24,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:24,874 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-11-22 01:43:24,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 419 treesize of output 331 [2022-11-22 01:43:25,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:25,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:25,753 INFO L321 Elim1Store]: treesize reduction 358, result has 14.6 percent of original size [2022-11-22 01:43:25,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 133 [2022-11-22 01:43:25,795 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:43:25,795 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 82 treesize of output 85 [2022-11-22 01:43:25,829 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-22 01:43:25,830 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 31 [2022-11-22 01:43:25,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:25,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2022-11-22 01:43:26,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:26,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:26,148 INFO L321 Elim1Store]: treesize reduction 358, result has 14.6 percent of original size [2022-11-22 01:43:26,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 133 [2022-11-22 01:43:26,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 72 [2022-11-22 01:43:26,182 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 72 treesize of output 42 [2022-11-22 01:43:26,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:26,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:26,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:26,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:26,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:26,525 INFO L321 Elim1Store]: treesize reduction 84, result has 28.8 percent of original size [2022-11-22 01:43:26,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 279 [2022-11-22 01:43:26,570 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:43:28,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1995378706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:43:28,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:43:28,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5, 5, 5] total 24 [2022-11-22 01:43:28,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995178072] [2022-11-22 01:43:28,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:43:28,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 01:43:28,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:43:28,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 01:43:28,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=466, Unknown=1, NotChecked=0, Total=552 [2022-11-22 01:43:28,923 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 16 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:32,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:43:32,047 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2022-11-22 01:43:32,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 01:43:32,048 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-22 01:43:32,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:43:32,050 INFO L225 Difference]: With dead ends: 43 [2022-11-22 01:43:32,050 INFO L226 Difference]: Without dead ends: 34 [2022-11-22 01:43:32,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 60 SyntacticMatches, 8 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=159, Invalid=832, Unknown=1, NotChecked=0, Total=992 [2022-11-22 01:43:32,054 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 48 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:43:32,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:43:32,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-22 01:43:32,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2022-11-22 01:43:32,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.0625) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-11-22 01:43:32,067 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 29 [2022-11-22 01:43:32,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:43:32,068 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-11-22 01:43:32,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:32,068 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-11-22 01:43:32,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 01:43:32,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:43:32,071 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:43:32,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:43:32,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-22 01:43:32,276 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-22 01:43:32,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:43:32,276 INFO L85 PathProgramCache]: Analyzing trace with hash 704993137, now seen corresponding path program 1 times [2022-11-22 01:43:32,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:43:32,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065057935] [2022-11-22 01:43:32,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:32,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:43:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 01:43:32,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:43:32,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065057935] [2022-11-22 01:43:32,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065057935] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:43:32,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91835333] [2022-11-22 01:43:32,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:32,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:32,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:43:32,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:43:32,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:43:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:32,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:43:32,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:32,512 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 01:43:32,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 01:43:32,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91835333] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:32,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1590428767] [2022-11-22 01:43:32,546 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-22 01:43:32,546 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:43:32,546 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:43:32,547 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:43:32,547 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:43:32,672 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-22 01:43:32,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-22 01:43:32,796 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-22 01:43:32,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-22 01:43:32,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-22 01:43:32,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 27 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 122 [2022-11-22 01:43:33,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:33,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,154 INFO L321 Elim1Store]: treesize reduction 165, result has 4.1 percent of original size [2022-11-22 01:43:33,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 40 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 31 case distinctions, treesize of input 477 treesize of output 451 [2022-11-22 01:43:33,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:43:33,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:33,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:33,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:33,433 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-22 01:43:33,434 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 3 case distinctions, treesize of input 46 treesize of output 53 [2022-11-22 01:43:33,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:33,513 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:33,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:33,524 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:33,942 INFO L321 Elim1Store]: treesize reduction 1125, result has 12.9 percent of original size [2022-11-22 01:43:33,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 590 treesize of output 669 [2022-11-22 01:43:34,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:34,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:34,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:34,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:34,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 62 [2022-11-22 01:43:34,962 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:43:34,998 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:43:35,044 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:43:35,079 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:43:35,095 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:43:35,118 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:43:35,132 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:43:35,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:35,879 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 714 treesize of output 680 [2022-11-22 01:43:35,894 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:35,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:35,902 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-22 01:43:35,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 680 treesize of output 461 [2022-11-22 01:43:41,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:41,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:41,317 INFO L321 Elim1Store]: treesize reduction 362, result has 13.6 percent of original size [2022-11-22 01:43:41,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 129 [2022-11-22 01:43:41,345 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-22 01:43:41,346 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 34 [2022-11-22 01:43:41,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:41,362 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 66 [2022-11-22 01:43:41,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:41,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:41,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:41,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 15 [2022-11-22 01:43:41,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:41,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:41,520 INFO L321 Elim1Store]: treesize reduction 358, result has 14.6 percent of original size [2022-11-22 01:43:41,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 133 [2022-11-22 01:43:41,570 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:43:41,571 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 101 treesize of output 100 [2022-11-22 01:43:41,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:41,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 34 [2022-11-22 01:43:41,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:41,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 34 [2022-11-22 01:43:41,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:41,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:41,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:41,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:41,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:41,825 INFO L321 Elim1Store]: treesize reduction 84, result has 28.8 percent of original size [2022-11-22 01:43:41,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 279 [2022-11-22 01:43:41,884 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:43:48,191 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1756#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* ~SIZE~0 4) (* |ULTIMATE.start_main_~i~0#1| (- 4)) (- 4))) (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* ~SIZE~0 4) (* |ULTIMATE.start_main_~i~0#1| (- 4)) (- 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (<= 1 ~SIZE~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (not (<= |ULTIMATE.start_main_#t~post9#1| 2147483646)) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~i~0#1| (+ ~SIZE~0 2147483647)) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#t~post9#1| |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-22 01:43:48,191 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:43:48,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:43:48,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-22 01:43:48,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955779107] [2022-11-22 01:43:48,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:43:48,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:43:48,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:43:48,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:43:48,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:43:48,193 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:48,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:43:48,304 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2022-11-22 01:43:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:43:48,305 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 01:43:48,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:43:48,305 INFO L225 Difference]: With dead ends: 65 [2022-11-22 01:43:48,305 INFO L226 Difference]: Without dead ends: 38 [2022-11-22 01:43:48,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 72 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2022-11-22 01:43:48,306 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:43:48,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 27 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:43:48,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-22 01:43:48,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2022-11-22 01:43:48,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 35 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:48,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2022-11-22 01:43:48,313 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 32 [2022-11-22 01:43:48,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:43:48,313 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2022-11-22 01:43:48,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:43:48,314 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2022-11-22 01:43:48,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-22 01:43:48,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:43:48,314 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:43:48,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:43:48,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:48,515 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-22 01:43:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:43:48,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1236641101, now seen corresponding path program 2 times [2022-11-22 01:43:48,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:43:48,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254376522] [2022-11-22 01:43:48,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:48,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:43:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:48,656 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:43:48,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:43:48,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254376522] [2022-11-22 01:43:48,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254376522] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:43:48,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476304100] [2022-11-22 01:43:48,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:43:48,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:48,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:43:48,658 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:43:48,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:43:48,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 01:43:48,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:43:48,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:43:48,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:48,885 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:43:48,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:43:49,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476304100] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:49,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [252574870] [2022-11-22 01:43:49,034 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-22 01:43:49,034 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:43:49,035 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:43:49,035 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:43:49,035 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:43:49,182 INFO L321 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-22 01:43:49,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-22 01:43:49,323 INFO L321 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-22 01:43:49,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-22 01:43:49,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-22 01:43:49,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 27 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 117 [2022-11-22 01:43:49,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:49,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:49,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:49,694 INFO L321 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2022-11-22 01:43:49,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 30 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 461 treesize of output 442 [2022-11-22 01:43:49,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 01:43:50,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:50,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:50,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:50,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:50,092 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-22 01:43:50,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 53 [2022-11-22 01:43:50,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:50,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:50,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:50,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:50,629 INFO L321 Elim1Store]: treesize reduction 1103, result has 14.6 percent of original size [2022-11-22 01:43:50,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 590 treesize of output 691 [2022-11-22 01:43:51,198 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:43:51,198 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 2224 treesize of output 2139 [2022-11-22 01:43:51,640 INFO L321 Elim1Store]: treesize reduction 52, result has 28.8 percent of original size [2022-11-22 01:43:51,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2122 treesize of output 2028 [2022-11-22 01:43:53,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:53,557 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:43:53,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:43:53,594 INFO L321 Elim1Store]: treesize reduction 44, result has 36.2 percent of original size [2022-11-22 01:43:53,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 2122 treesize of output 1830 [2022-11-22 01:44:15,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:44:15,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:44:15,621 INFO L321 Elim1Store]: treesize reduction 362, result has 13.6 percent of original size [2022-11-22 01:44:15,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 129 [2022-11-22 01:44:15,659 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:44:15,659 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 85 [2022-11-22 01:44:15,674 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-22 01:44:15,674 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 32 [2022-11-22 01:44:15,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:44:15,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:44:15,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 19 [2022-11-22 01:44:15,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:44:15,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:44:15,970 INFO L321 Elim1Store]: treesize reduction 358, result has 14.6 percent of original size [2022-11-22 01:44:15,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 133 [2022-11-22 01:44:15,986 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 72 treesize of output 42 [2022-11-22 01:44:16,022 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:44:16,023 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 110 [2022-11-22 01:44:16,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:44:16,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2022-11-22 01:44:16,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:44:16,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:44:16,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 31 [2022-11-22 01:44:16,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:44:16,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:44:16,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:44:16,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:44:16,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:44:16,214 INFO L321 Elim1Store]: treesize reduction 84, result has 28.8 percent of original size [2022-11-22 01:44:16,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 279 [2022-11-22 01:44:16,257 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:44:18,642 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2100#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* ~SIZE~0 4) (* |ULTIMATE.start_main_~i~0#1| (- 4)) (- 4))) (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* ~SIZE~0 4) (* |ULTIMATE.start_main_~i~0#1| (- 4)) (- 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_main_~acopy~0#1.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|))) (<= 1 ~SIZE~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (not (<= |ULTIMATE.start_main_#t~post9#1| 2147483646)) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~i~0#1| (+ ~SIZE~0 2147483647)) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#t~post9#1| |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-22 01:44:18,643 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:44:18,643 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:44:18,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 12 [2022-11-22 01:44:18,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559573597] [2022-11-22 01:44:18,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:44:18,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:44:18,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:18,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:44:18,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2022-11-22 01:44:18,645 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:18,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:18,894 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2022-11-22 01:44:18,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:44:18,895 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 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 35 [2022-11-22 01:44:18,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:18,896 INFO L225 Difference]: With dead ends: 53 [2022-11-22 01:44:18,896 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:44:18,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 81 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=197, Invalid=795, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:44:18,897 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 84 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:18,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 7 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:44:18,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:44:18,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:44:18,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:18,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:44:18,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2022-11-22 01:44:18,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:18,898 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:44:18,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:18,899 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:44:18,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:44:18,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-22 01:44:18,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-22 01:44:18,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-22 01:44:18,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-22 01:44:18,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-22 01:44:18,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-22 01:44:18,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-22 01:44:18,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-22 01:44:18,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-22 01:44:18,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-22 01:44:18,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-22 01:44:18,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-22 01:44:18,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-22 01:44:18,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-22 01:44:18,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-22 01:44:18,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-22 01:44:18,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:44:19,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:44:19,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:44:20,061 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,062 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,062 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-22 01:44:20,062 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,062 INFO L899 garLoopResultBuilder]: For program point L35-5(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,062 INFO L899 garLoopResultBuilder]: For program point L35-6(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,062 INFO L899 garLoopResultBuilder]: For program point L35-7(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,063 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 44) no Hoare annotation was computed. [2022-11-22 01:44:20,064 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 44) no Hoare annotation was computed. [2022-11-22 01:44:20,064 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-22 01:44:20,064 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,064 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-22 01:44:20,064 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:44:20,065 INFO L902 garLoopResultBuilder]: At program point L45(lines 16 46) the Hoare annotation is: true [2022-11-22 01:44:20,065 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,065 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-22 01:44:20,065 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,065 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,066 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,066 INFO L899 garLoopResultBuilder]: For program point L40-3(line 40) no Hoare annotation was computed. [2022-11-22 01:44:20,066 INFO L899 garLoopResultBuilder]: For program point L40-4(line 40) no Hoare annotation was computed. [2022-11-22 01:44:20,066 INFO L895 garLoopResultBuilder]: At program point L40-5(lines 40 43) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 2 ~SIZE~0) (<= 100000 ~MAX~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~MAX~0 100000) (= |#NULL.base| 0)) [2022-11-22 01:44:20,066 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,067 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-22 01:44:20,067 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:44:20,067 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2022-11-22 01:44:20,067 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2022-11-22 01:44:20,067 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,067 INFO L899 garLoopResultBuilder]: For program point L33-5(line 33) no Hoare annotation was computed. [2022-11-22 01:44:20,068 INFO L899 garLoopResultBuilder]: For program point L33-6(line 33) no Hoare annotation was computed. [2022-11-22 01:44:20,068 INFO L895 garLoopResultBuilder]: At program point L33-7(lines 33 37) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 2 ~SIZE~0) (< |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 100000 ~MAX~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~MAX~0 100000) (= |#NULL.base| 0)) [2022-11-22 01:44:20,068 INFO L899 garLoopResultBuilder]: For program point L33-8(lines 33 37) no Hoare annotation was computed. [2022-11-22 01:44:20,068 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-22 01:44:20,068 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-22 01:44:20,069 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 28) the Hoare annotation is: (and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (or (<= 1 |ULTIMATE.start_main_~i~0#1|) (let ((.cse2 (select |#memory_int| 1)) (.cse1 (* 4 (mod ~SIZE~0 1073741824))) (.cse0 (select |#memory_int| 2))) (and (= 7 (select |#length| 2)) (= (select |#length| 3) 12) (< |ULTIMATE.start_main_~a~0#1.base| |#StackHeapBarrier|) (< ~SIZE~0 ~MAX~0) (< |ULTIMATE.start_main_~acopy~0#1.base| |#StackHeapBarrier|) (= (select .cse0 5) 99) (not (= 3 |ULTIMATE.start_main_~acopy~0#1.base|)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select .cse0 1) 99) (= (select .cse0 4) 46) (= 116 (select .cse0 0)) (= (select |#length| |ULTIMATE.start_main_~a~0#1.base|) .cse1) (= (select |#valid| 1) 1) (= (select .cse0 6) 0) (= 1 (select |#valid| |ULTIMATE.start_main_~acopy~0#1.base|)) (not (= |ULTIMATE.start_main_~acopy~0#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (not (= 3 |ULTIMATE.start_main_~a~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~a~0#1.base|) 1) (= (select .cse2 1) 0) (= 121 (select .cse0 3)) (= (select |#length| |ULTIMATE.start_main_~acopy~0#1.base|) .cse1) (< 0 |#StackHeapBarrier|) (= 112 (select .cse0 2))))) (= ~MAX~0 100000) (<= 2 ~SIZE~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~acopy~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-11-22 01:44:20,069 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 20 44) no Hoare annotation was computed. [2022-11-22 01:44:20,069 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-22 01:44:20,069 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-22 01:44:20,070 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-22 01:44:20,070 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,070 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,070 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-11-22 01:44:20,074 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:20,076 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:44:20,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:44:20 BoogieIcfgContainer [2022-11-22 01:44:20,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:44:20,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:44:20,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:44:20,109 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:44:20,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:42:55" (3/4) ... [2022-11-22 01:44:20,113 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:44:20,123 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-22 01:44:20,123 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-22 01:44:20,123 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 01:44:20,124 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:44:20,124 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:44:20,146 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((0 <= a && 2 <= SIZE) && i < 2147483647) && 100000 <= MAX) && SIZE <= 100000) && 0 <= \old(cond)) && 0 <= i) && 0 <= cond) && acopy == 0) && #NULL == 0) && \old(cond) <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && cond <= 1) && a <= 0) && MAX <= 100000) && #NULL == 0 [2022-11-22 01:44:20,146 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((0 <= a && i <= 2147483647) && 2 <= SIZE) && 100000 <= MAX) && SIZE <= 100000) && 0 <= \old(cond)) && 0 <= i) && 0 <= cond) && acopy == 0) && #NULL == 0) && \old(cond) <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && cond <= 1) && a <= 0) && MAX <= 100000) && #NULL == 0 [2022-11-22 01:44:20,158 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:44:20,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:44:20,159 INFO L158 Benchmark]: Toolchain (without parser) took 85917.62ms. Allocated memory was 144.7MB in the beginning and 553.6MB in the end (delta: 408.9MB). Free memory was 113.9MB in the beginning and 327.5MB in the end (delta: -213.6MB). Peak memory consumption was 198.0MB. Max. memory is 16.1GB. [2022-11-22 01:44:20,160 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 65.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:44:20,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.16ms. Allocated memory is still 144.7MB. Free memory was 113.5MB in the beginning and 103.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:44:20,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.38ms. Allocated memory is still 144.7MB. Free memory was 103.1MB in the beginning and 101.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:44:20,161 INFO L158 Benchmark]: Boogie Preprocessor took 44.95ms. Allocated memory is still 144.7MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:44:20,161 INFO L158 Benchmark]: RCFGBuilder took 458.41ms. Allocated memory is still 144.7MB. Free memory was 99.7MB in the beginning and 83.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 01:44:20,161 INFO L158 Benchmark]: TraceAbstraction took 85083.85ms. Allocated memory was 144.7MB in the beginning and 553.6MB in the end (delta: 408.9MB). Free memory was 82.6MB in the beginning and 330.6MB in the end (delta: -248.0MB). Peak memory consumption was 162.4MB. Max. memory is 16.1GB. [2022-11-22 01:44:20,162 INFO L158 Benchmark]: Witness Printer took 49.90ms. Allocated memory is still 553.6MB. Free memory was 330.6MB in the beginning and 327.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:44:20,163 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 65.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.16ms. Allocated memory is still 144.7MB. Free memory was 113.5MB in the beginning and 103.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.38ms. Allocated memory is still 144.7MB. Free memory was 103.1MB in the beginning and 101.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.95ms. Allocated memory is still 144.7MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 458.41ms. Allocated memory is still 144.7MB. Free memory was 99.7MB in the beginning and 83.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 85083.85ms. Allocated memory was 144.7MB in the beginning and 553.6MB in the end (delta: 408.9MB). Free memory was 82.6MB in the beginning and 330.6MB in the end (delta: -248.0MB). Peak memory consumption was 162.4MB. Max. memory is 16.1GB. * Witness Printer took 49.90ms. Allocated memory is still 553.6MB. Free memory was 330.6MB in the beginning and 327.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: 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, 42 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 85.0s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 358 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 358 mSDsluCounter, 310 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 161 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1180 IncrementalHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 149 mSDtfsCounter, 1180 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 441 GetRequests, 278 SyntacticMatches, 30 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 18.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=5, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 79 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 282 HoareAnnotationTreeSize, 4 FomulaSimplifications, 271 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 1331 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 341 NumberOfCodeBlocks, 322 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 447 ConstructedInterpolants, 0 QuantifiedInterpolants, 1125 SizeOfPredicates, 14 NumberOfNonLiveVariables, 611 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 92/137 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 23.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 50, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 170, TOOLS_POST_TIME: 22.0s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 170, TOOLS_QUANTIFIERELIM_TIME: 21.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 4.9s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 263, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 14, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 11, DOMAIN_WIDEN_TIME: 0.7s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 17, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 50, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME: 20.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 20.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 17, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1394, DAG_COMPRESSION_RETAINED_NODES: 171, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((((((((((((((0 <= a && 2 <= SIZE) && i < 2147483647) && 100000 <= MAX) && SIZE <= 100000) && 0 <= \old(cond)) && 0 <= i) && 0 <= cond) && acopy == 0) && #NULL == 0) && \old(cond) <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && cond <= 1) && a <= 0) && MAX <= 100000) && #NULL == 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((((((0 <= a && i <= 2147483647) && 2 <= SIZE) && 100000 <= MAX) && SIZE <= 100000) && 0 <= \old(cond)) && 0 <= i) && 0 <= cond) && acopy == 0) && #NULL == 0) && \old(cond) <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && cond <= 1) && a <= 0) && MAX <= 100000) && #NULL == 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((((((((a == 0 && (1 <= i || ((((((((((((((((((((((((((7 == unknown-#length-unknown[2] && unknown-#length-unknown[3] == 12) && a < unknown-#StackHeapBarrier-unknown) && SIZE < MAX) && acopy < unknown-#StackHeapBarrier-unknown) && unknown-#memory_int-unknown[2][5] == 99) && !(3 == acopy)) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && unknown-#memory_int-unknown[2][1] == 99) && unknown-#memory_int-unknown[2][4] == 46) && 116 == unknown-#memory_int-unknown[2][0]) && unknown-#length-unknown[a] == 4 * (SIZE % 1073741824)) && \valid[1] == 1) && unknown-#memory_int-unknown[2][6] == 0) && 1 == \valid[acopy]) && !(acopy == a)) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && !(3 == a)) && \valid[a] == 1) && unknown-#memory_int-unknown[1][1] == 0) && 121 == unknown-#memory_int-unknown[2][3]) && unknown-#length-unknown[acopy] == 4 * (SIZE % 1073741824)) && 0 < unknown-#StackHeapBarrier-unknown) && 112 == unknown-#memory_int-unknown[2][2]))) && MAX == 100000) && 2 <= SIZE) && SIZE <= 100000) && 0 <= i) && acopy == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-11-22 01:44:20,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d46f28f1-22c1-40cf-a380-848fddede515/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE