./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur --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 efbd812580893a7521723358e51d4f43c4b930b57b026212f5a7d5f447f3e0f8 --- 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-38b53e6 [2022-11-25 22:24:42,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:24:42,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:24:42,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:24:42,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:24:42,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:24:42,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:24:42,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:24:42,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:24:42,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:24:42,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:24:42,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:24:42,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:24:42,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:24:42,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:24:42,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:24:42,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:24:42,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:24:42,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:24:42,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:24:42,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:24:42,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:24:42,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:24:42,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:24:42,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:24:42,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:24:42,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:24:42,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:24:42,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:24:42,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:24:42,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:24:42,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:24:42,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:24:42,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:24:42,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:24:42,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:24:42,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:24:42,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:24:42,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:24:42,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:24:42,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:24:42,509 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 22:24:42,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:24:42,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:24:42,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:24:42,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:24:42,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:24:42,554 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:24:42,554 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:24:42,554 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:24:42,555 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:24:42,555 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:24:42,556 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:24:42,556 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:24:42,556 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:24:42,557 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:24:42,557 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:24:42,557 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:24:42,558 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:24:42,558 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:24:42,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:24:42,559 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:24:42,559 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:24:42,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:24:42,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:24:42,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:24:42,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:24:42,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:24:42,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:24:42,561 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:24:42,561 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:24:42,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:24:42,562 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:24:42,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:24:42,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:24:42,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:24:42,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:24:42,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:24:42,564 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:24:42,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:24:42,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:24:42,564 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:24:42,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:24:42,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:24:42,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:24:42,565 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_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efbd812580893a7521723358e51d4f43c4b930b57b026212f5a7d5f447f3e0f8 [2022-11-25 22:24:42,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:24:42,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:24:42,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:24:42,897 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:24:42,898 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:24:42,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-multidimensional/add-3-n-u.c [2022-11-25 22:24:45,974 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:24:46,202 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:24:46,203 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/sv-benchmarks/c/array-multidimensional/add-3-n-u.c [2022-11-25 22:24:46,210 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/data/67b8dce24/4835ad86697549c2856cb73b1d69ef6c/FLAG64062de5a [2022-11-25 22:24:46,224 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/data/67b8dce24/4835ad86697549c2856cb73b1d69ef6c [2022-11-25 22:24:46,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:24:46,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:24:46,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:24:46,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:24:46,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:24:46,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48621638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46, skipping insertion in model container [2022-11-25 22:24:46,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:24:46,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:24:46,410 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_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/sv-benchmarks/c/array-multidimensional/add-3-n-u.c[321,334] [2022-11-25 22:24:46,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:24:46,444 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:24:46,456 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_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/sv-benchmarks/c/array-multidimensional/add-3-n-u.c[321,334] [2022-11-25 22:24:46,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:24:46,484 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:24:46,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46 WrapperNode [2022-11-25 22:24:46,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:24:46,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:24:46,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:24:46,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:24:46,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,550 INFO L138 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2022-11-25 22:24:46,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:24:46,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:24:46,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:24:46,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:24:46,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,616 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:24:46,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:24:46,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:24:46,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:24:46,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (1/1) ... [2022-11-25 22:24:46,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:24:46,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:46,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:24:46,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:24:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:24:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:24:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:24:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:24:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:24:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:24:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:24:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:24:46,770 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:24:46,773 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:24:47,077 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:24:47,168 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:24:47,181 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-25 22:24:47,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:24:47 BoogieIcfgContainer [2022-11-25 22:24:47,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:24:47,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:24:47,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:24:47,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:24:47,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:24:46" (1/3) ... [2022-11-25 22:24:47,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687fea58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:24:47, skipping insertion in model container [2022-11-25 22:24:47,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:24:46" (2/3) ... [2022-11-25 22:24:47,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687fea58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:24:47, skipping insertion in model container [2022-11-25 22:24:47,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:24:47" (3/3) ... [2022-11-25 22:24:47,199 INFO L112 eAbstractionObserver]: Analyzing ICFG add-3-n-u.c [2022-11-25 22:24:47,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:24:47,220 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-25 22:24:47,272 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:24:47,279 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;@25fa5851, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:24:47,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-25 22:24:47,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 46 states have internal predecessors, (55), 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) [2022-11-25 22:24:47,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:24:47,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:47,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:24:47,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:24:47,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:47,297 INFO L85 PathProgramCache]: Analyzing trace with hash 5795618, now seen corresponding path program 1 times [2022-11-25 22:24:47,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:47,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523670729] [2022-11-25 22:24:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:47,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:47,402 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:24:47,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831008310] [2022-11-25 22:24:47,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:47,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:47,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:47,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:47,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:24:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:47,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:24:47,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:47,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:24:47,560 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:24:47,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:47,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523670729] [2022-11-25 22:24:47,561 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:24:47,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831008310] [2022-11-25 22:24:47,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831008310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:47,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:24:47,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:24:47,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25372653] [2022-11-25 22:24:47,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:47,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:24:47,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:47,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:24:47,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:47,642 INFO L87 Difference]: Start difference. First operand has 47 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 46 states have internal predecessors, (55), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-25 22:24:47,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:47,747 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-11-25 22:24:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:24:47,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2022-11-25 22:24:47,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:47,758 INFO L225 Difference]: With dead ends: 47 [2022-11-25 22:24:47,758 INFO L226 Difference]: Without dead ends: 43 [2022-11-25 22:24:47,761 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 [2022-11-25 22:24:47,764 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:47,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 27 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:24:47,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-25 22:24:47,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-25 22:24:47,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 42 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) [2022-11-25 22:24:47,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2022-11-25 22:24:47,800 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 4 [2022-11-25 22:24:47,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:47,800 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2022-11-25 22:24:47,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-25 22:24:47,801 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-11-25 22:24:47,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:24:47,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:47,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:24:47,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:24:48,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:24:48,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:24:48,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:48,004 INFO L85 PathProgramCache]: Analyzing trace with hash 179664235, now seen corresponding path program 1 times [2022-11-25 22:24:48,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:48,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673533801] [2022-11-25 22:24:48,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:48,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:48,019 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:24:48,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444224354] [2022-11-25 22:24:48,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:48,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:48,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:48,031 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:48,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:24:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:48,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:24:48,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:48,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:24:48,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:24:48,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:48,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673533801] [2022-11-25 22:24:48,146 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:24:48,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444224354] [2022-11-25 22:24:48,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444224354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:48,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:24:48,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:24:48,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697320893] [2022-11-25 22:24:48,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:48,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:24:48,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:48,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:24:48,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:48,149 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-11-25 22:24:48,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:48,232 INFO L93 Difference]: Finished difference Result 85 states and 101 transitions. [2022-11-25 22:24:48,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:24:48,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2022-11-25 22:24:48,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:48,234 INFO L225 Difference]: With dead ends: 85 [2022-11-25 22:24:48,234 INFO L226 Difference]: Without dead ends: 82 [2022-11-25 22:24:48,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:48,236 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 39 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:48,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 57 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:24:48,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-25 22:24:48,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 70. [2022-11-25 22:24:48,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.7818181818181817) internal successors, (98), 69 states have internal predecessors, (98), 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) [2022-11-25 22:24:48,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2022-11-25 22:24:48,248 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 5 [2022-11-25 22:24:48,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:48,248 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2022-11-25 22:24:48,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2022-11-25 22:24:48,249 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2022-11-25 22:24:48,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:24:48,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:48,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:24:48,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:24:48,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:48,456 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:24:48,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:48,457 INFO L85 PathProgramCache]: Analyzing trace with hash 179515209, now seen corresponding path program 1 times [2022-11-25 22:24:48,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:48,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250150435] [2022-11-25 22:24:48,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:48,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:48,471 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:24:48,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1098578798] [2022-11-25 22:24:48,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:48,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:48,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:48,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:48,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:24:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:48,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:24:48,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:48,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:24:48,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:24:48,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:48,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250150435] [2022-11-25 22:24:48,574 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:24:48,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098578798] [2022-11-25 22:24:48,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098578798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:48,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:24:48,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:24:48,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048472774] [2022-11-25 22:24:48,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:48,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:24:48,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:48,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:24:48,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:48,577 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand has 3 states, 2 states have (on average 2.5) 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) [2022-11-25 22:24:48,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:48,652 INFO L93 Difference]: Finished difference Result 70 states and 98 transitions. [2022-11-25 22:24:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:24:48,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 [2022-11-25 22:24:48,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:48,657 INFO L225 Difference]: With dead ends: 70 [2022-11-25 22:24:48,657 INFO L226 Difference]: Without dead ends: 67 [2022-11-25 22:24:48,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:48,658 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:48,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 24 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:24:48,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-25 22:24:48,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-25 22:24:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 55 states have (on average 1.6727272727272726) internal successors, (92), 66 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) [2022-11-25 22:24:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2022-11-25 22:24:48,668 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 5 [2022-11-25 22:24:48,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:48,668 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2022-11-25 22:24:48,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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) [2022-11-25 22:24:48,669 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2022-11-25 22:24:48,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:24:48,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:48,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:24:48,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:24:48,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:48,887 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:24:48,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:48,888 INFO L85 PathProgramCache]: Analyzing trace with hash 179510924, now seen corresponding path program 1 times [2022-11-25 22:24:48,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:48,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110809963] [2022-11-25 22:24:48,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:48,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:48,904 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:24:48,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1788604510] [2022-11-25 22:24:48,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:48,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:48,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:48,909 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:48,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:24:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:48,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:24:48,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:48,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:24:48,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:24:48,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:48,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110809963] [2022-11-25 22:24:48,998 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:24:48,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788604510] [2022-11-25 22:24:48,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788604510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:48,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:24:48,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:24:48,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055129715] [2022-11-25 22:24:48,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:48,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:24:49,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:49,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:24:49,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:49,001 INFO L87 Difference]: Start difference. First operand 67 states and 92 transitions. Second operand has 3 states, 2 states have (on average 2.5) 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) [2022-11-25 22:24:49,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:49,073 INFO L93 Difference]: Finished difference Result 67 states and 92 transitions. [2022-11-25 22:24:49,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:24:49,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 [2022-11-25 22:24:49,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:49,080 INFO L225 Difference]: With dead ends: 67 [2022-11-25 22:24:49,084 INFO L226 Difference]: Without dead ends: 64 [2022-11-25 22:24:49,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:49,086 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:49,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 24 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:24:49,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-25 22:24:49,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-25 22:24:49,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 55 states have (on average 1.5636363636363637) internal successors, (86), 63 states have internal predecessors, (86), 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) [2022-11-25 22:24:49,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 86 transitions. [2022-11-25 22:24:49,105 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 86 transitions. Word has length 5 [2022-11-25 22:24:49,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:49,106 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 86 transitions. [2022-11-25 22:24:49,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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) [2022-11-25 22:24:49,106 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2022-11-25 22:24:49,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:24:49,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:49,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:24:49,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:24:49,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:49,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:24:49,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:49,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1270004253, now seen corresponding path program 1 times [2022-11-25 22:24:49,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:49,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091105502] [2022-11-25 22:24:49,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:49,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:49,329 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:24:49,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106380975] [2022-11-25 22:24:49,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:49,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:49,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:49,331 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:49,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:24:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:49,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:24:49,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:49,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:24:49,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:24:49,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:49,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091105502] [2022-11-25 22:24:49,409 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:24:49,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106380975] [2022-11-25 22:24:49,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106380975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:49,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:24:49,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:24:49,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172560141] [2022-11-25 22:24:49,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:49,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:24:49,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:49,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:24:49,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:49,413 INFO L87 Difference]: Start difference. First operand 64 states and 86 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-25 22:24:49,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:49,509 INFO L93 Difference]: Finished difference Result 124 states and 166 transitions. [2022-11-25 22:24:49,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:24:49,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 22:24:49,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:49,511 INFO L225 Difference]: With dead ends: 124 [2022-11-25 22:24:49,511 INFO L226 Difference]: Without dead ends: 121 [2022-11-25 22:24:49,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:49,516 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 30 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:49,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 42 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:24:49,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-25 22:24:49,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 100. [2022-11-25 22:24:49,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 91 states have (on average 1.5384615384615385) internal successors, (140), 99 states have internal predecessors, (140), 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) [2022-11-25 22:24:49,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 140 transitions. [2022-11-25 22:24:49,534 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 140 transitions. Word has length 6 [2022-11-25 22:24:49,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:49,535 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 140 transitions. [2022-11-25 22:24:49,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-25 22:24:49,535 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 140 transitions. [2022-11-25 22:24:49,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:24:49,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:49,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:24:49,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:24:49,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:49,742 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:24:49,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1269871411, now seen corresponding path program 1 times [2022-11-25 22:24:49,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:49,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936724065] [2022-11-25 22:24:49,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:49,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:49,754 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:24:49,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124857101] [2022-11-25 22:24:49,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:49,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:49,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:49,756 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:49,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 22:24:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:49,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:24:49,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:24:49,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:24:49,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:49,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936724065] [2022-11-25 22:24:49,846 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:24:49,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124857101] [2022-11-25 22:24:49,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124857101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:49,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:24:49,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:24:49,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873486851] [2022-11-25 22:24:49,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:49,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:24:49,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:49,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:24:49,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:49,850 INFO L87 Difference]: Start difference. First operand 100 states and 140 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-25 22:24:49,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:49,943 INFO L93 Difference]: Finished difference Result 190 states and 262 transitions. [2022-11-25 22:24:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:24:49,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-25 22:24:49,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:49,946 INFO L225 Difference]: With dead ends: 190 [2022-11-25 22:24:49,946 INFO L226 Difference]: Without dead ends: 187 [2022-11-25 22:24:49,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:24:49,949 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:49,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 45 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:24:49,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-25 22:24:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 136. [2022-11-25 22:24:49,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 135 states have internal predecessors, (188), 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) [2022-11-25 22:24:49,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 188 transitions. [2022-11-25 22:24:49,992 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 188 transitions. Word has length 6 [2022-11-25 22:24:49,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:49,992 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 188 transitions. [2022-11-25 22:24:49,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2022-11-25 22:24:49,993 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 188 transitions. [2022-11-25 22:24:49,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:24:49,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:49,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2022-11-25 22:24:50,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:24:50,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 22:24:50,200 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:24:50,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:50,200 INFO L85 PathProgramCache]: Analyzing trace with hash 518817045, now seen corresponding path program 1 times [2022-11-25 22:24:50,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:50,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250166119] [2022-11-25 22:24:50,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:50,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:50,218 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:24:50,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283985569] [2022-11-25 22:24:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:50,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:50,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:50,220 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:50,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 22:24:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:50,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:24:50,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:24:50,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:24:50,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:50,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250166119] [2022-11-25 22:24:50,373 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:24:50,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283985569] [2022-11-25 22:24:50,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283985569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:24:50,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:24:50,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:24:50,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189486770] [2022-11-25 22:24:50,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:24:50,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:24:50,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:24:50,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:24:50,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:24:50,377 INFO L87 Difference]: Start difference. First operand 136 states and 188 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-25 22:24:50,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:24:50,474 INFO L93 Difference]: Finished difference Result 255 states and 346 transitions. [2022-11-25 22:24:50,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:24:50,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 22:24:50,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:24:50,476 INFO L225 Difference]: With dead ends: 255 [2022-11-25 22:24:50,476 INFO L226 Difference]: Without dead ends: 139 [2022-11-25 22:24:50,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:24:50,479 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 63 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:24:50,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 42 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:24:50,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-25 22:24:50,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2022-11-25 22:24:50,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 127 states have (on average 1.4330708661417322) internal successors, (182), 135 states have internal predecessors, (182), 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) [2022-11-25 22:24:50,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2022-11-25 22:24:50,512 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 9 [2022-11-25 22:24:50,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:24:50,512 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2022-11-25 22:24:50,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-25 22:24:50,512 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2022-11-25 22:24:50,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:24:50,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:24:50,513 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-25 22:24:50,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:24:50,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 22:24:50,714 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:24:50,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:24:50,715 INFO L85 PathProgramCache]: Analyzing trace with hash 667320586, now seen corresponding path program 1 times [2022-11-25 22:24:50,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:24:50,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805091142] [2022-11-25 22:24:50,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:50,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:24:50,724 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:24:50,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1751600830] [2022-11-25 22:24:50,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:50,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:50,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:50,726 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:50,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 22:24:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:50,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:24:50,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:50,817 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:24:50,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:24:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:24:50,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:24:50,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805091142] [2022-11-25 22:24:50,840 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:24:50,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751600830] [2022-11-25 22:24:50,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751600830] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:24:50,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [141385826] [2022-11-25 22:24:50,859 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-25 22:24:50,859 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:24:50,863 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:24:50,868 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:24:50,868 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:24:50,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:50,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:50,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,060 INFO L321 Elim1Store]: treesize reduction 185, result has 22.9 percent of original size [2022-11-25 22:24:51,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 81 [2022-11-25 22:24:51,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,266 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-25 22:24:51,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-25 22:24:51,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:24:51,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:24:51,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:51,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:51,927 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-25 22:24:51,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-25 22:24:52,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:52,157 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:24:52,158 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:24:52,211 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:25:01,460 WARN L233 SmtUtils]: Spent 8.80s on a formula simplification. DAG size of input: 140 DAG size of output: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:25:01,513 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2080#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~k~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 22:25:01,513 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:25:01,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:25:01,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-11-25 22:25:01,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603651743] [2022-11-25 22:25:01,514 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:25:01,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:25:01,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:01,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:25:01,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:25:01,515 INFO L87 Difference]: Start difference. First operand 136 states and 182 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:01,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:01,765 INFO L93 Difference]: Finished difference Result 451 states and 610 transitions. [2022-11-25 22:25:01,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:25:01,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 22:25:01,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:01,768 INFO L225 Difference]: With dead ends: 451 [2022-11-25 22:25:01,768 INFO L226 Difference]: Without dead ends: 448 [2022-11-25 22:25:01,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:25:01,770 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 140 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:01,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 99 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:25:01,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-11-25 22:25:01,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 244. [2022-11-25 22:25:01,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.3872340425531915) internal successors, (326), 243 states have internal predecessors, (326), 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) [2022-11-25 22:25:01,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 326 transitions. [2022-11-25 22:25:01,794 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 326 transitions. Word has length 9 [2022-11-25 22:25:01,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:01,795 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 326 transitions. [2022-11-25 22:25:01,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:01,795 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 326 transitions. [2022-11-25 22:25:01,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 22:25:01,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:01,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-25 22:25:01,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:02,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:02,007 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:25:02,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:02,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1635256882, now seen corresponding path program 1 times [2022-11-25 22:25:02,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:02,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739256955] [2022-11-25 22:25:02,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:02,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:02,017 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:02,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2052734855] [2022-11-25 22:25:02,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:02,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:02,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:02,019 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:02,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 22:25:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:02,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:25:02,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:25:02,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:25:02,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:02,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739256955] [2022-11-25 22:25:02,109 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:02,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052734855] [2022-11-25 22:25:02,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052734855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:25:02,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:25:02,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:25:02,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723582008] [2022-11-25 22:25:02,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:25:02,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:25:02,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:02,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:25:02,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:25:02,115 INFO L87 Difference]: Start difference. First operand 244 states and 326 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:02,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:02,210 INFO L93 Difference]: Finished difference Result 470 states and 627 transitions. [2022-11-25 22:25:02,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:25:02,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 22:25:02,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:02,212 INFO L225 Difference]: With dead ends: 470 [2022-11-25 22:25:02,212 INFO L226 Difference]: Without dead ends: 244 [2022-11-25 22:25:02,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:25:02,218 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 45 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:02,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 45 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:25:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-25 22:25:02,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-11-25 22:25:02,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.3361702127659574) internal successors, (314), 243 states have internal predecessors, (314), 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) [2022-11-25 22:25:02,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 314 transitions. [2022-11-25 22:25:02,238 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 314 transitions. Word has length 10 [2022-11-25 22:25:02,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:02,238 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 314 transitions. [2022-11-25 22:25:02,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:02,239 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 314 transitions. [2022-11-25 22:25:02,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 22:25:02,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:02,240 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-25 22:25:02,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:02,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:02,446 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:25:02,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:02,447 INFO L85 PathProgramCache]: Analyzing trace with hash -2053044728, now seen corresponding path program 1 times [2022-11-25 22:25:02,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:02,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583387421] [2022-11-25 22:25:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:02,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:02,457 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:02,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1052333673] [2022-11-25 22:25:02,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:02,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:02,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:02,459 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:02,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 22:25:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:02,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:25:02,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:02,585 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:25:02,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:02,620 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 22:25:02,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:02,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583387421] [2022-11-25 22:25:02,621 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:02,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052333673] [2022-11-25 22:25:02,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052333673] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:02,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [830188261] [2022-11-25 22:25:02,624 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-25 22:25:02,624 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:02,624 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:02,624 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:02,625 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:02,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,786 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-25 22:25:02,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-25 22:25:02,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-11-25 22:25:02,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:02,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:25:02,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:25:03,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:03,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:03,286 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-25 22:25:03,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-25 22:25:03,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:03,429 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:03,429 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:03,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:03,754 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:03,755 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:03,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:03,784 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:03,785 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:03,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:03,858 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:03,859 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:03,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:03,959 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:03,959 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:04,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:04,104 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:04,104 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:04,146 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:04,159 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:04,159 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:04,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:04,255 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:04,256 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:04,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:04,304 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:04,305 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:04,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:04,443 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:04,443 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:04,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:04,483 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:04,483 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:04,550 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:04,564 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:04,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:04,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:04,608 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:04,609 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:04,683 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:25:05,862 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4041#(and (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 22:25:05,862 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:25:05,862 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:25:05,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-25 22:25:05,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956079702] [2022-11-25 22:25:05,863 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:25:05,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:25:05,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:05,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:25:05,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:25:05,864 INFO L87 Difference]: Start difference. First operand 244 states and 314 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-11-25 22:25:06,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:06,034 INFO L93 Difference]: Finished difference Result 470 states and 604 transitions. [2022-11-25 22:25:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:25:06,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-25 22:25:06,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:06,037 INFO L225 Difference]: With dead ends: 470 [2022-11-25 22:25:06,037 INFO L226 Difference]: Without dead ends: 244 [2022-11-25 22:25:06,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2022-11-25 22:25:06,039 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 129 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:06,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 78 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:25:06,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-25 22:25:06,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-11-25 22:25:06,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.1829787234042553) internal successors, (278), 243 states have internal predecessors, (278), 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) [2022-11-25 22:25:06,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 278 transitions. [2022-11-25 22:25:06,055 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 278 transitions. Word has length 16 [2022-11-25 22:25:06,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:06,055 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 278 transitions. [2022-11-25 22:25:06,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-11-25 22:25:06,055 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 278 transitions. [2022-11-25 22:25:06,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 22:25:06,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:06,058 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2022-11-25 22:25:06,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:06,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 22:25:06,264 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:25:06,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:06,265 INFO L85 PathProgramCache]: Analyzing trace with hash 487978099, now seen corresponding path program 2 times [2022-11-25 22:25:06,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:06,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825549497] [2022-11-25 22:25:06,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:06,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:06,281 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:06,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292372691] [2022-11-25 22:25:06,282 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:25:06,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:06,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:06,283 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:06,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 22:25:06,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 22:25:06,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:25:06,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:25:06,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 22:25:06,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:06,434 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 22:25:06,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:06,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825549497] [2022-11-25 22:25:06,434 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:06,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292372691] [2022-11-25 22:25:06,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292372691] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:06,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1089384889] [2022-11-25 22:25:06,441 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-25 22:25:06,442 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:06,442 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:06,442 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:06,442 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:06,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,583 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-25 22:25:06,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-25 22:25:06,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-11-25 22:25:06,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:25:06,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:06,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:25:07,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:07,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:07,035 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-25 22:25:07,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-25 22:25:07,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:07,162 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:07,162 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:07,189 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:25:16,276 WARN L233 SmtUtils]: Spent 8.66s on a formula simplification. DAG size of input: 140 DAG size of output: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:25:16,327 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5101#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~k~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 22:25:16,327 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:25:16,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:25:16,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-25 22:25:16,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304368443] [2022-11-25 22:25:16,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:25:16,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:25:16,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:16,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:25:16,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:25:16,330 INFO L87 Difference]: Start difference. First operand 244 states and 278 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-25 22:25:16,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:16,425 INFO L93 Difference]: Finished difference Result 244 states and 278 transitions. [2022-11-25 22:25:16,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:25:16,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2022-11-25 22:25:16,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:16,427 INFO L225 Difference]: With dead ends: 244 [2022-11-25 22:25:16,427 INFO L226 Difference]: Without dead ends: 241 [2022-11-25 22:25:16,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:25:16,428 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 122 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:16,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 42 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:25:16,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-25 22:25:16,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 217. [2022-11-25 22:25:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 211 states have (on average 1.146919431279621) internal successors, (242), 216 states have internal predecessors, (242), 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) [2022-11-25 22:25:16,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 242 transitions. [2022-11-25 22:25:16,442 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 242 transitions. Word has length 18 [2022-11-25 22:25:16,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:16,443 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 242 transitions. [2022-11-25 22:25:16,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-25 22:25:16,443 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 242 transitions. [2022-11-25 22:25:16,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 22:25:16,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:16,444 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1] [2022-11-25 22:25:16,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:16,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 22:25:16,650 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:25:16,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:16,651 INFO L85 PathProgramCache]: Analyzing trace with hash -379611854, now seen corresponding path program 2 times [2022-11-25 22:25:16,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:16,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594398471] [2022-11-25 22:25:16,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:16,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:16,668 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:16,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [561862668] [2022-11-25 22:25:16,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:25:16,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:16,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:16,670 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:16,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 22:25:16,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 22:25:16,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:25:16,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:25:16,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-25 22:25:16,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:16,874 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-25 22:25:16,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:16,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594398471] [2022-11-25 22:25:16,875 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:16,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561862668] [2022-11-25 22:25:16,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561862668] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:16,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1693853239] [2022-11-25 22:25:16,877 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-25 22:25:16,878 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:16,878 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:16,878 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:16,878 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:16,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,006 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-25 22:25:17,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-25 22:25:17,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-11-25 22:25:17,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:25:17,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:25:17,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:17,426 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-25 22:25:17,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-25 22:25:17,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:17,543 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:17,543 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:17,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:17,857 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:17,859 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:17,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:17,889 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:17,889 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:17,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:17,944 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:17,944 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:18,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:18,023 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:18,023 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:18,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:18,167 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:18,168 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:18,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:18,233 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:18,233 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:18,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:18,319 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:18,320 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:18,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:18,371 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:18,371 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:18,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:18,475 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:18,476 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:18,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:18,506 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:18,507 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:18,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:18,573 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:18,574 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:18,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:18,622 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:18,622 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:18,691 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:25:19,806 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5930#(and (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 22:25:19,806 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:25:19,806 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:25:19,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-25 22:25:19,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495870893] [2022-11-25 22:25:19,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:25:19,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:25:19,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:19,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:25:19,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-25 22:25:19,808 INFO L87 Difference]: Start difference. First operand 217 states and 242 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-11-25 22:25:19,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:19,909 INFO L93 Difference]: Finished difference Result 217 states and 242 transitions. [2022-11-25 22:25:19,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:25:19,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-25 22:25:19,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:19,911 INFO L225 Difference]: With dead ends: 217 [2022-11-25 22:25:19,911 INFO L226 Difference]: Without dead ends: 214 [2022-11-25 22:25:19,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:25:19,912 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 96 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:19,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 27 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:25:19,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-25 22:25:19,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 124. [2022-11-25 22:25:19,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 121 states have (on average 1.1570247933884297) internal successors, (140), 123 states have internal predecessors, (140), 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) [2022-11-25 22:25:19,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 140 transitions. [2022-11-25 22:25:19,925 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 140 transitions. Word has length 34 [2022-11-25 22:25:19,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:19,926 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 140 transitions. [2022-11-25 22:25:19,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-11-25 22:25:19,926 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 140 transitions. [2022-11-25 22:25:19,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 22:25:19,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:19,927 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-25 22:25:19,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:20,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:20,132 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:25:20,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:20,133 INFO L85 PathProgramCache]: Analyzing trace with hash 484089259, now seen corresponding path program 1 times [2022-11-25 22:25:20,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:20,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166569328] [2022-11-25 22:25:20,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:20,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:20,146 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:20,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687131946] [2022-11-25 22:25:20,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:20,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:20,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:20,148 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:20,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 22:25:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:25:20,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:25:20,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:20,357 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 22:25:20,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 22:25:20,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:20,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166569328] [2022-11-25 22:25:20,434 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:20,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687131946] [2022-11-25 22:25:20,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687131946] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:20,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1494391143] [2022-11-25 22:25:20,439 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-25 22:25:20,440 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:20,440 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:20,440 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:20,440 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:20,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,590 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-25 22:25:20,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-25 22:25:20,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-11-25 22:25:20,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:25:20,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:25:20,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:20,990 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-25 22:25:20,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-25 22:25:21,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:21,101 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:21,102 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:21,651 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:21,663 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:21,664 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:21,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:21,693 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:21,694 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:21,744 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:21,757 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:21,758 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:21,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:21,836 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:21,837 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:22,072 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:22,072 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:22,146 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:22,146 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:22,220 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:22,221 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:22,384 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:22,384 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:22,418 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:22,418 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:22,491 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:22,492 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:22,537 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:22,537 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:22,762 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:22,762 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:22,795 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:22,795 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:22,857 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:22,857 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:22,901 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:22,902 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:22,987 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:25:24,061 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6662#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 22:25:24,061 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:25:24,061 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:25:24,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-25 22:25:24,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720409476] [2022-11-25 22:25:24,062 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:25:24,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 22:25:24,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:24,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 22:25:24,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2022-11-25 22:25:24,064 INFO L87 Difference]: Start difference. First operand 124 states and 140 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 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) [2022-11-25 22:25:24,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:24,386 INFO L93 Difference]: Finished difference Result 353 states and 420 transitions. [2022-11-25 22:25:24,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 22:25:24,387 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 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) Word has length 41 [2022-11-25 22:25:24,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:24,388 INFO L225 Difference]: With dead ends: 353 [2022-11-25 22:25:24,388 INFO L226 Difference]: Without dead ends: 232 [2022-11-25 22:25:24,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2022-11-25 22:25:24,390 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 276 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:24,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 81 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:25:24,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-11-25 22:25:24,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2022-11-25 22:25:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 229 states have (on average 1.0829694323144106) internal successors, (248), 231 states have internal predecessors, (248), 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) [2022-11-25 22:25:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2022-11-25 22:25:24,409 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 41 [2022-11-25 22:25:24,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:24,410 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2022-11-25 22:25:24,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 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) [2022-11-25 22:25:24,410 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2022-11-25 22:25:24,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 22:25:24,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:24,412 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-25 22:25:24,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:24,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:24,618 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 22:25:24,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:24,618 INFO L85 PathProgramCache]: Analyzing trace with hash 888827563, now seen corresponding path program 2 times [2022-11-25 22:25:24,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:25:24,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271845507] [2022-11-25 22:25:24,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:25:24,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:25:24,646 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:25:24,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369082970] [2022-11-25 22:25:24,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:25:24,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:25:24,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:24,650 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:25:24,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 22:25:24,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 22:25:24,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:25:24,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:25:24,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-25 22:25:24,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:25,009 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-25 22:25:25,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:25:25,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271845507] [2022-11-25 22:25:25,010 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:25:25,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369082970] [2022-11-25 22:25:25,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369082970] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:25:25,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [54780876] [2022-11-25 22:25:25,013 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-25 22:25:25,013 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:25:25,014 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:25:25,014 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:25:25,015 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:25:25,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,138 INFO L321 Elim1Store]: treesize reduction 185, result has 22.9 percent of original size [2022-11-25 22:25:25,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 81 [2022-11-25 22:25:25,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,312 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-25 22:25:25,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-25 22:25:25,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:25:25,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 67 [2022-11-25 22:25:25,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:25,626 INFO L321 Elim1Store]: treesize reduction 33, result has 41.1 percent of original size [2022-11-25 22:25:25,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 446 [2022-11-25 22:25:25,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:25,738 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:25,738 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:26,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:26,202 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:26,202 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:26,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:26,231 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:26,232 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:26,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:26,293 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:26,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:26,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:26,376 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:26,376 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:26,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:26,601 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:26,601 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:26,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:26,647 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:26,647 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:26,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:26,721 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:26,721 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:26,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:26,871 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:26,871 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:26,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:26,908 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:26,909 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:26,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:26,984 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:26,984 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:27,022 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:27,035 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:27,035 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:27,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:27,223 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:27,223 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:27,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:27,253 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:27,253 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:27,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:27,320 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:27,321 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:27,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:27,366 INFO L321 Elim1Store]: treesize reduction 29, result has 48.2 percent of original size [2022-11-25 22:25:27,366 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 1 case distinctions, treesize of input 75 treesize of output 51 [2022-11-25 22:25:27,486 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:25:28,492 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7941#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 22:25:28,492 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:25:28,493 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:25:28,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-25 22:25:28,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041328819] [2022-11-25 22:25:28,493 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:25:28,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:25:28,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:25:28,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:25:28,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-11-25 22:25:28,495 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:28,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:28,616 INFO L93 Difference]: Finished difference Result 232 states and 248 transitions. [2022-11-25 22:25:28,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:25:28,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-25 22:25:28,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:28,618 INFO L225 Difference]: With dead ends: 232 [2022-11-25 22:25:28,618 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 22:25:28,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:25:28,619 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 98 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:28,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 15 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:25:28,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 22:25:28,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 22:25:28,620 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) [2022-11-25 22:25:28,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 22:25:28,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2022-11-25 22:25:28,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:28,621 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 22:25:28,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:25:28,621 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 22:25:28,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 22:25:28,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-25 22:25:28,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-25 22:25:28,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-25 22:25:28,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-25 22:25:28,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-25 22:25:28,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-25 22:25:28,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-25 22:25:28,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-25 22:25:28,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-25 22:25:28,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-25 22:25:28,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-25 22:25:28,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-25 22:25:28,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-25 22:25:28,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-25 22:25:28,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-25 22:25:28,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-25 22:25:28,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-25 22:25:28,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-25 22:25:28,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:28,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 22:25:28,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 22:25:30,032 INFO L899 garLoopResultBuilder]: For program point L68-3(lines 68 71) no Hoare annotation was computed. [2022-11-25 22:25:30,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-25 22:25:30,033 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-11-25 22:25:30,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-25 22:25:30,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-11-25 22:25:30,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-25 22:25:30,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 22:25:30,034 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 36) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 22:25:30,034 INFO L899 garLoopResultBuilder]: For program point L28-3(lines 28 36) no Hoare annotation was computed. [2022-11-25 22:25:30,034 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-25 22:25:30,034 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-25 22:25:30,034 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2022-11-25 22:25:30,035 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-11-25 22:25:30,035 INFO L899 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2022-11-25 22:25:30,035 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-25 22:25:30,035 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-11-25 22:25:30,035 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-25 22:25:30,035 INFO L895 garLoopResultBuilder]: At program point L46-2(lines 46 53) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 22:25:30,036 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-25 22:25:30,036 INFO L899 garLoopResultBuilder]: For program point L46-3(lines 46 53) no Hoare annotation was computed. [2022-11-25 22:25:30,036 INFO L895 garLoopResultBuilder]: At program point L63-2(lines 63 75) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 22:25:30,036 INFO L895 garLoopResultBuilder]: At program point L30-2(lines 30 34) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-11-25 22:25:30,036 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 34) no Hoare annotation was computed. [2022-11-25 22:25:30,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-11-25 22:25:30,037 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2022-11-25 22:25:30,037 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 51) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-11-25 22:25:30,037 INFO L899 garLoopResultBuilder]: For program point L48-3(lines 48 51) no Hoare annotation was computed. [2022-11-25 22:25:30,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-11-25 22:25:30,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-25 22:25:30,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-11-25 22:25:30,038 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-11-25 22:25:30,038 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2022-11-25 22:25:30,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 22:25:30,038 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2022-11-25 22:25:30,039 INFO L895 garLoopResultBuilder]: At program point L66-2(lines 66 73) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 22:25:30,039 INFO L899 garLoopResultBuilder]: For program point L66-3(lines 66 73) no Hoare annotation was computed. [2022-11-25 22:25:30,039 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-25 22:25:30,039 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 38) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 22:25:30,039 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-11-25 22:25:30,039 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-11-25 22:25:30,040 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-11-25 22:25:30,040 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-25 22:25:30,040 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-25 22:25:30,040 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-11-25 22:25:30,040 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 43 55) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 22:25:30,040 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-25 22:25:30,041 INFO L895 garLoopResultBuilder]: At program point L68-2(lines 68 71) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-11-25 22:25:30,044 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:25:30,046 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:25:30,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:25:30 BoogieIcfgContainer [2022-11-25 22:25:30,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:25:30,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:25:30,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:25:30,083 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:25:30,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:24:47" (3/4) ... [2022-11-25 22:25:30,087 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 22:25:30,102 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-25 22:25:30,103 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-25 22:25:30,103 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 22:25:30,103 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 22:25:30,141 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:25:30,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:25:30,142 INFO L158 Benchmark]: Toolchain (without parser) took 43913.73ms. Allocated memory was 178.3MB in the beginning and 369.1MB in the end (delta: 190.8MB). Free memory was 134.4MB in the beginning and 167.9MB in the end (delta: -33.5MB). Peak memory consumption was 158.9MB. Max. memory is 16.1GB. [2022-11-25 22:25:30,142 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 132.1MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:25:30,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.14ms. Allocated memory is still 178.3MB. Free memory was 133.9MB in the beginning and 122.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:25:30,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.18ms. Allocated memory is still 178.3MB. Free memory was 122.9MB in the beginning and 120.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:25:30,143 INFO L158 Benchmark]: Boogie Preprocessor took 64.47ms. Allocated memory is still 178.3MB. Free memory was 120.8MB in the beginning and 119.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:25:30,144 INFO L158 Benchmark]: RCFGBuilder took 563.84ms. Allocated memory is still 178.3MB. Free memory was 119.3MB in the beginning and 101.4MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 22:25:30,144 INFO L158 Benchmark]: TraceAbstraction took 42895.17ms. Allocated memory was 178.3MB in the beginning and 369.1MB in the end (delta: 190.8MB). Free memory was 100.9MB in the beginning and 171.1MB in the end (delta: -70.2MB). Peak memory consumption was 175.7MB. Max. memory is 16.1GB. [2022-11-25 22:25:30,144 INFO L158 Benchmark]: Witness Printer took 58.69ms. Allocated memory is still 369.1MB. Free memory was 171.1MB in the beginning and 167.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:25:30,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 132.1MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.14ms. Allocated memory is still 178.3MB. Free memory was 133.9MB in the beginning and 122.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.18ms. Allocated memory is still 178.3MB. Free memory was 122.9MB in the beginning and 120.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.47ms. Allocated memory is still 178.3MB. Free memory was 120.8MB in the beginning and 119.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 563.84ms. Allocated memory is still 178.3MB. Free memory was 119.3MB in the beginning and 101.4MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 42895.17ms. Allocated memory was 178.3MB in the beginning and 369.1MB in the end (delta: 190.8MB). Free memory was 100.9MB in the beginning and 171.1MB in the end (delta: -70.2MB). Peak memory consumption was 175.7MB. Max. memory is 16.1GB. * Witness Printer took 58.69ms. Allocated memory is still 369.1MB. Free memory was 171.1MB in the beginning and 167.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: 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, 47 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 42.8s, OverallIterations: 14, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1179 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1179 mSDsluCounter, 648 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 312 mSDsCounter, 377 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 634 IncrementalHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 377 mSolverCounterUnsat, 336 mSDtfsCounter, 634 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 628 GetRequests, 527 SyntacticMatches, 6 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 23.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=8, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 405 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 93 NumberOfFragments, 306 HoareAnnotationTreeSize, 9 FomulaSimplifications, 378 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7038 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 245 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 1186 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1443 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 20 InterpolantComputations, 8 PerfectInterpolantSequences, 928/1772 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 RESULT: Ultimate proved your program to be correct! [2022-11-25 22:25:30,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a0f5de-7a0b-4efe-b1ed-1a2d45ce5b5c/bin/utaipan-ByfvJB40ur/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