./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/copy-partial-2-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_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/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_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/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_8913f3ad-a250-4b4d-89d4-758dd411b8af/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 2a46b64c20324a7544dfe7936b5f39eaa32bba659068797748195a7f292bdaee --- 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 22:14:48,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:14:48,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:14:48,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:14:48,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:14:48,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:14:48,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:14:48,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:14:48,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:14:48,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:14:48,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:14:48,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:14:48,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:14:48,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:14:48,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:14:48,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:14:48,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:14:48,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:14:48,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:14:48,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:14:48,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:14:48,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:14:48,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:14:48,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:14:48,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:14:48,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:14:48,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:14:48,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:14:48,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:14:48,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:14:48,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:14:48,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:14:48,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:14:48,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:14:48,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:14:48,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:14:48,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:14:48,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:14:48,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:14:48,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:14:48,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:14:48,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 22:14:48,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:14:48,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:14:48,947 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:14:48,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:14:48,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:14:48,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:14:48,949 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:14:48,949 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:14:48,949 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:14:48,950 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:14:48,950 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:14:48,950 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:14:48,956 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:14:48,956 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:14:48,956 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:14:48,957 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:14:48,957 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:14:48,957 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:14:48,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:14:48,958 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:14:48,959 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:14:48,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:14:48,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:14:48,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:14:48,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:14:48,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:14:48,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:14:48,961 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:14:48,962 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:14:48,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:14:48,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:14:48,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:14:48,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:14:48,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:14:48,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:14:48,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:14:48,966 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:14:48,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:14:48,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:14:48,966 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:14:48,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:14:48,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:14:48,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:14:48,967 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_8913f3ad-a250-4b4d-89d4-758dd411b8af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a46b64c20324a7544dfe7936b5f39eaa32bba659068797748195a7f292bdaee [2022-11-25 22:14:49,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:14:49,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:14:49,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:14:49,397 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:14:49,397 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:14:49,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c [2022-11-25 22:14:52,973 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:14:53,248 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:14:53,250 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c [2022-11-25 22:14:53,256 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/data/eb837fd2a/6b7c44ba3c174a2ea76e72f1dd12fb5c/FLAG60b88b89e [2022-11-25 22:14:53,277 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/data/eb837fd2a/6b7c44ba3c174a2ea76e72f1dd12fb5c [2022-11-25 22:14:53,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:14:53,286 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:14:53,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:14:53,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:14:53,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:14:53,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ed2ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53, skipping insertion in model container [2022-11-25 22:14:53,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:14:53,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:14:53,485 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_8913f3ad-a250-4b4d-89d4-758dd411b8af/sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c[416,429] [2022-11-25 22:14:53,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:14:53,515 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:14:53,527 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_8913f3ad-a250-4b4d-89d4-758dd411b8af/sv-benchmarks/c/array-multidimensional/copy-partial-2-n-u.c[416,429] [2022-11-25 22:14:53,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:14:53,552 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:14:53,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53 WrapperNode [2022-11-25 22:14:53,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:14:53,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:14:53,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:14:53,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:14:53,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,588 INFO L138 Inliner]: procedures = 15, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 98 [2022-11-25 22:14:53,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:14:53,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:14:53,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:14:53,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:14:53,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,614 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:14:53,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:14:53,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:14:53,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:14:53,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (1/1) ... [2022-11-25 22:14:53,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:14:53,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:14:53,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:14:53,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:14:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:14:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:14:53,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:14:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:14:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:14:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:14:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:14:53,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:14:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:14:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:14:53,786 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:14:53,788 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:14:54,017 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:14:54,082 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:14:54,082 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 22:14:54,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:14:54 BoogieIcfgContainer [2022-11-25 22:14:54,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:14:54,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:14:54,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:14:54,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:14:54,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:14:53" (1/3) ... [2022-11-25 22:14:54,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f3451d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:14:54, skipping insertion in model container [2022-11-25 22:14:54,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:53" (2/3) ... [2022-11-25 22:14:54,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f3451d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:14:54, skipping insertion in model container [2022-11-25 22:14:54,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:14:54" (3/3) ... [2022-11-25 22:14:54,097 INFO L112 eAbstractionObserver]: Analyzing ICFG copy-partial-2-n-u.c [2022-11-25 22:14:54,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:14:54,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-25 22:14:54,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:14:54,210 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;@13606f8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:14:54,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-25 22:14:54,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 33 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:14:54,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:14:54,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:14:54,228 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:14:54,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 22:14:54,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:14:54,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1475097158, now seen corresponding path program 1 times [2022-11-25 22:14:54,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:14:54,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008922412] [2022-11-25 22:14:54,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:54,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:14:54,448 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:14:54,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245877837] [2022-11-25 22:14:54,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:54,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:54,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:14:54,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:14:54,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:14:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:14:54,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:14:54,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:14:54,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:14:54,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:14:54,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:14:54,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008922412] [2022-11-25 22:14:54,590 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:14:54,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245877837] [2022-11-25 22:14:54,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245877837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:14:54,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:14:54,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:14:54,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097773449] [2022-11-25 22:14:54,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:14:54,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:14:54,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:14:54,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:14:54,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:14:54,639 INFO L87 Difference]: Start difference. First operand has 37 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 33 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:14:54,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:14:54,746 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2022-11-25 22:14:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:14:54,748 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 11 [2022-11-25 22:14:54,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:14:54,756 INFO L225 Difference]: With dead ends: 37 [2022-11-25 22:14:54,757 INFO L226 Difference]: Without dead ends: 33 [2022-11-25 22:14:54,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 22:14:54,769 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 21 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 22:14:54,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 21 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:14:54,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-25 22:14:54,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-25 22:14:54,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:14:54,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2022-11-25 22:14:54,822 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 11 [2022-11-25 22:14:54,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:14:54,824 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-11-25 22:14:54,824 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:14:54,825 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-11-25 22:14:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:14:54,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:14:54,827 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:14:54,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:14:55,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:55,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 22:14:55,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:14:55,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1475101040, now seen corresponding path program 1 times [2022-11-25 22:14:55,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:14:55,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11247634] [2022-11-25 22:14:55,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:55,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:14:55,063 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:14:55,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977603990] [2022-11-25 22:14:55,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:55,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:55,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:14:55,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:14:55,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:14:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:14:55,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:14:55,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:14:55,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:14:55,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:14:55,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:14:55,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11247634] [2022-11-25 22:14:55,167 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:14:55,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977603990] [2022-11-25 22:14:55,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977603990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:14:55,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:14:55,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:14:55,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659090949] [2022-11-25 22:14:55,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:14:55,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:14:55,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:14:55,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:14:55,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:14:55,171 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:14:55,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:14:55,231 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-11-25 22:14:55,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:14:55,232 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 11 [2022-11-25 22:14:55,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:14:55,233 INFO L225 Difference]: With dead ends: 33 [2022-11-25 22:14:55,233 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 22:14:55,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 22:14:55,235 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 20 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:14:55,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 21 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:14:55,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 22:14:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-25 22:14:55,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 26 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:14:55,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2022-11-25 22:14:55,246 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 11 [2022-11-25 22:14:55,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:14:55,247 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-11-25 22:14:55,247 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:14:55,247 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-11-25 22:14:55,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 22:14:55,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:14:55,248 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:14:55,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 22:14:55,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-25 22:14:55,469 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 22:14:55,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:14:55,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1516628422, now seen corresponding path program 1 times [2022-11-25 22:14:55,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:14:55,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763359541] [2022-11-25 22:14:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:55,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:14:55,487 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:14:55,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311651405] [2022-11-25 22:14:55,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:55,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:55,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:14:55,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:14:55,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:14:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:14:55,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:14:55,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:14:55,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:14:55,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:14:55,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:14:55,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763359541] [2022-11-25 22:14:55,638 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:14:55,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311651405] [2022-11-25 22:14:55,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311651405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:14:55,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:14:55,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:14:55,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845430331] [2022-11-25 22:14:55,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:14:55,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:14:55,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:14:55,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:14:55,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:14:55,646 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:14:55,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:14:55,811 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2022-11-25 22:14:55,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:14:55,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2022-11-25 22:14:55,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:14:55,814 INFO L225 Difference]: With dead ends: 54 [2022-11-25 22:14:55,814 INFO L226 Difference]: Without dead ends: 51 [2022-11-25 22:14:55,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 22:14:55,819 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:14:55,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 30 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:14:55,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-25 22:14:55,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2022-11-25 22:14:55,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.4871794871794872) internal successors, (58), 44 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:14:55,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2022-11-25 22:14:55,839 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 12 [2022-11-25 22:14:55,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:14:55,840 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2022-11-25 22:14:55,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:14:55,841 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2022-11-25 22:14:55,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 22:14:55,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:14:55,841 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:14:55,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:14:56,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:56,043 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 22:14:56,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:14:56,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1516508073, now seen corresponding path program 1 times [2022-11-25 22:14:56,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:14:56,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169774072] [2022-11-25 22:14:56,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:56,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:14:56,057 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:14:56,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1266533817] [2022-11-25 22:14:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:56,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:56,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:14:56,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:14:56,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:14:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:14:56,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:14:56,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:14:56,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:14:56,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:14:56,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:14:56,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169774072] [2022-11-25 22:14:56,176 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:14:56,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266533817] [2022-11-25 22:14:56,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266533817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:14:56,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:14:56,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:14:56,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957346637] [2022-11-25 22:14:56,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:14:56,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:14:56,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:14:56,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:14:56,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:14:56,179 INFO L87 Difference]: Start difference. First operand 48 states and 62 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:14:56,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:14:56,265 INFO L93 Difference]: Finished difference Result 87 states and 112 transitions. [2022-11-25 22:14:56,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:14:56,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2022-11-25 22:14:56,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:14:56,268 INFO L225 Difference]: With dead ends: 87 [2022-11-25 22:14:56,268 INFO L226 Difference]: Without dead ends: 84 [2022-11-25 22:14:56,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 22:14:56,270 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:14:56,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 33 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:14:56,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-25 22:14:56,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 66. [2022-11-25 22:14:56,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 57 states have (on average 1.4385964912280702) internal successors, (82), 62 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:14:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2022-11-25 22:14:56,285 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 12 [2022-11-25 22:14:56,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:14:56,286 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2022-11-25 22:14:56,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:14:56,287 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2022-11-25 22:14:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 22:14:56,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:14:56,288 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:14:56,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:14:56,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:56,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 22:14:56,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:14:56,496 INFO L85 PathProgramCache]: Analyzing trace with hash -468931186, now seen corresponding path program 1 times [2022-11-25 22:14:56,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:14:56,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50335008] [2022-11-25 22:14:56,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:56,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:14:56,508 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:14:56,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442794012] [2022-11-25 22:14:56,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:56,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:14:56,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:14:56,511 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:14:56,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:14:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:14:56,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:14:56,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:14:56,696 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:14:56,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:14:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:14:56,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:14:56,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50335008] [2022-11-25 22:14:56,766 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:14:56,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442794012] [2022-11-25 22:14:56,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442794012] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:14:56,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [596428835] [2022-11-25 22:14:56,798 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-25 22:14:56,798 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:14:56,803 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:14:56,824 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:14:56,825 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:14:56,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:14:56,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:14:57,080 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-11-25 22:14:57,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 61 [2022-11-25 22:14:57,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:14:57,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:14:57,276 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 22:14:57,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 22:14:57,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:14:57,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-25 22:14:58,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:14:58,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:14:58,242 INFO L321 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-11-25 22:14:58,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 398 treesize of output 381 [2022-11-25 22:14:58,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:14:58,738 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 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:14:58,884 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-11-25 22:14:58,989 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:15:00,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [596428835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:15:00,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:15:00,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 3] total 11 [2022-11-25 22:15:00,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202581678] [2022-11-25 22:15:00,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:15:00,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:15:00,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:00,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:15:00,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:15:00,558 INFO L87 Difference]: Start difference. First operand 66 states and 86 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:15:01,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:01,980 INFO L93 Difference]: Finished difference Result 121 states and 154 transitions. [2022-11-25 22:15:01,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:15:01,980 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-11-25 22:15:01,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:01,981 INFO L225 Difference]: With dead ends: 121 [2022-11-25 22:15:01,982 INFO L226 Difference]: Without dead ends: 68 [2022-11-25 22:15:01,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:15:01,983 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 62 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:01,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 12 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 22:15:01,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-25 22:15:02,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2022-11-25 22:15:02,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 60 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:15:02,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2022-11-25 22:15:02,030 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 15 [2022-11-25 22:15:02,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:02,030 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2022-11-25 22:15:02,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:15:02,031 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2022-11-25 22:15:02,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 22:15:02,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:02,032 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:02,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:15:02,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:15:02,239 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 22:15:02,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:02,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1821727347, now seen corresponding path program 1 times [2022-11-25 22:15:02,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:02,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940191721] [2022-11-25 22:15:02,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:02,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:02,249 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:15:02,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373256449] [2022-11-25 22:15:02,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:02,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:15:02,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:15:02,251 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:15:02,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 22:15:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:02,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:15:02,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:15:02,388 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:15:02,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:15:02,452 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:15:02,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:02,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940191721] [2022-11-25 22:15:02,453 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:15:02,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373256449] [2022-11-25 22:15:02,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373256449] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:15:02,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [322691640] [2022-11-25 22:15:02,456 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-25 22:15:02,457 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:15:02,457 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:15:02,458 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:15:02,458 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:15:02,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:02,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:02,585 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 22:15:02,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 22:15:02,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:02,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:02,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 47 [2022-11-25 22:15:02,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:02,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-25 22:15:03,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:03,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:03,219 INFO L321 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-11-25 22:15:03,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 398 treesize of output 381 [2022-11-25 22:15:03,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:03,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:03,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 111 [2022-11-25 22:15:03,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:03,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:03,814 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 22:15:03,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 107 [2022-11-25 22:15:03,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:04,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:04,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 105 [2022-11-25 22:15:04,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:04,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:04,430 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-11-25 22:15:04,497 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:15:06,489 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1137#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~q~0#1| 500) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 22:15:06,489 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:15:06,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:15:06,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 22:15:06,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618622534] [2022-11-25 22:15:06,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 22:15:06,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:15:06,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:06,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:15:06,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:15:06,491 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:15:06,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:06,771 INFO L93 Difference]: Finished difference Result 218 states and 275 transitions. [2022-11-25 22:15:06,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:15:06,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2022-11-25 22:15:06,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:06,774 INFO L225 Difference]: With dead ends: 218 [2022-11-25 22:15:06,775 INFO L226 Difference]: Without dead ends: 165 [2022-11-25 22:15:06,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-11-25 22:15:06,776 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 186 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:06,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 62 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:15:06,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-25 22:15:06,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 92. [2022-11-25 22:15:06,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 88 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:15:06,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 110 transitions. [2022-11-25 22:15:06,821 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 110 transitions. Word has length 19 [2022-11-25 22:15:06,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:06,821 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 110 transitions. [2022-11-25 22:15:06,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:15:06,821 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 110 transitions. [2022-11-25 22:15:06,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 22:15:06,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:06,823 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:06,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:15:07,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 22:15:07,031 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 22:15:07,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:07,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1517411183, now seen corresponding path program 1 times [2022-11-25 22:15:07,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:07,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691630863] [2022-11-25 22:15:07,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:07,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:07,058 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:15:07,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241023842] [2022-11-25 22:15:07,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:07,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:15:07,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:15:07,063 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:15:07,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 22:15:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:07,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:15:07,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:15:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 40 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 22:15:07,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:15:07,430 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 40 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 22:15:07,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:07,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691630863] [2022-11-25 22:15:07,431 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:15:07,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241023842] [2022-11-25 22:15:07,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241023842] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:15:07,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [467514189] [2022-11-25 22:15:07,435 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-25 22:15:07,436 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:15:07,436 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:15:07,436 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:15:07,437 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:15:07,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:07,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:07,535 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-11-25 22:15:07,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 61 [2022-11-25 22:15:07,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:07,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:07,647 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 22:15:07,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 22:15:07,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:07,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-25 22:15:08,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:08,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:08,081 INFO L321 Elim1Store]: treesize reduction 70, result has 27.8 percent of original size [2022-11-25 22:15:08,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 390 treesize of output 383 [2022-11-25 22:15:08,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:08,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:08,564 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 22:15:08,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 113 [2022-11-25 22:15:08,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:08,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:08,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:08,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:08,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 105 [2022-11-25 22:15:08,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:09,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:09,061 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 22:15:09,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 107 [2022-11-25 22:15:09,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:09,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:09,349 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-11-25 22:15:09,411 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:15:11,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [467514189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:15:11,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:15:11,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 8] total 21 [2022-11-25 22:15:11,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925142074] [2022-11-25 22:15:11,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:15:11,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 22:15:11,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:11,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 22:15:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2022-11-25 22:15:11,643 INFO L87 Difference]: Start difference. First operand 92 states and 110 transitions. Second operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:15:15,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:15,531 INFO L93 Difference]: Finished difference Result 94 states and 110 transitions. [2022-11-25 22:15:15,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 22:15:15,531 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-11-25 22:15:15,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:15,533 INFO L225 Difference]: With dead ends: 94 [2022-11-25 22:15:15,533 INFO L226 Difference]: Without dead ends: 92 [2022-11-25 22:15:15,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 71 SyntacticMatches, 10 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2022-11-25 22:15:15,534 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 54 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:15,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 8 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 22:15:15,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-25 22:15:15,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 75. [2022-11-25 22:15:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 71 states have internal predecessors, (87), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:15:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 91 transitions. [2022-11-25 22:15:15,593 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 91 transitions. Word has length 34 [2022-11-25 22:15:15,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:15,594 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 91 transitions. [2022-11-25 22:15:15,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:15:15,594 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 91 transitions. [2022-11-25 22:15:15,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 22:15:15,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:15,602 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:15,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:15:15,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:15:15,809 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 22:15:15,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:15,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1213049782, now seen corresponding path program 1 times [2022-11-25 22:15:15,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:15,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689967863] [2022-11-25 22:15:15,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:15,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:15,824 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:15:15,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853123513] [2022-11-25 22:15:15,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:15,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:15:15,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:15:15,827 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:15:15,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 22:15:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:15,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:15:15,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:15:16,023 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 22:15:16,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:15:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-25 22:15:16,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:16,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689967863] [2022-11-25 22:15:16,129 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:15:16,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853123513] [2022-11-25 22:15:16,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853123513] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:15:16,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1549559437] [2022-11-25 22:15:16,135 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-25 22:15:16,135 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:15:16,136 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:15:16,136 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:15:16,136 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:15:16,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:16,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:16,235 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-11-25 22:15:16,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 61 [2022-11-25 22:15:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:16,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:16,348 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 22:15:16,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 22:15:16,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:16,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-25 22:15:16,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:16,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 62 [2022-11-25 22:15:16,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:16,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:16,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:16,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:16,997 INFO L321 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2022-11-25 22:15:16,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 470 treesize of output 414 [2022-11-25 22:15:17,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:17,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:17,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:17,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2022-11-25 22:15:17,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:17,462 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-25 22:15:17,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 140 [2022-11-25 22:15:17,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:17,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:17,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:17,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2022-11-25 22:15:17,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:17,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:17,941 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:17,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:17,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:17,988 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:18,067 INFO L321 Elim1Store]: treesize reduction 101, result has 39.2 percent of original size [2022-11-25 22:15:18,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 153 [2022-11-25 22:15:18,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:18,314 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:18,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:18,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:18,358 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:18,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:18,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:18,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2022-11-25 22:15:18,479 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 0 case distinctions, treesize of input 192 treesize of output 138 [2022-11-25 22:15:18,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:18,669 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-11-25 22:15:18,736 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:15:20,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1549559437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:15:20,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:15:20,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8, 8] total 24 [2022-11-25 22:15:20,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401080148] [2022-11-25 22:15:20,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:15:20,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 22:15:20,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:20,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 22:15:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2022-11-25 22:15:20,106 INFO L87 Difference]: Start difference. First operand 75 states and 91 transitions. Second operand has 12 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:15:23,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:23,242 INFO L93 Difference]: Finished difference Result 95 states and 112 transitions. [2022-11-25 22:15:23,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 22:15:23,243 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-11-25 22:15:23,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:23,244 INFO L225 Difference]: With dead ends: 95 [2022-11-25 22:15:23,244 INFO L226 Difference]: Without dead ends: 91 [2022-11-25 22:15:23,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 22:15:23,246 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 97 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:23,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 4 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 22:15:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-25 22:15:23,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 59. [2022-11-25 22:15:23,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 55 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:15:23,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2022-11-25 22:15:23,282 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 35 [2022-11-25 22:15:23,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:23,283 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2022-11-25 22:15:23,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:15:23,284 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2022-11-25 22:15:23,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 22:15:23,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:23,289 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:23,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 22:15:23,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-25 22:15:23,497 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 22:15:23,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:23,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1532724274, now seen corresponding path program 1 times [2022-11-25 22:15:23,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:23,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669170604] [2022-11-25 22:15:23,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:23,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:23,526 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:15:23,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013893174] [2022-11-25 22:15:23,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:23,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:15:23,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:15:23,539 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:15:23,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 22:15:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:23,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:15:23,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:15:23,790 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-25 22:15:23,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:15:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-25 22:15:23,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:23,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669170604] [2022-11-25 22:15:23,924 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:15:23,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013893174] [2022-11-25 22:15:23,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013893174] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:15:23,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1430038043] [2022-11-25 22:15:23,927 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-25 22:15:23,928 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:15:23,928 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:15:23,928 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:15:23,928 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:15:23,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:23,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:24,028 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-11-25 22:15:24,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 61 [2022-11-25 22:15:24,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:24,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:24,136 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 22:15:24,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 22:15:24,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:24,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-25 22:15:24,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:24,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:24,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 58 [2022-11-25 22:15:24,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:24,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:24,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:24,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:24,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:24,676 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-25 22:15:24,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 462 treesize of output 410 [2022-11-25 22:15:24,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:24,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:24,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:24,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2022-11-25 22:15:25,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:25,073 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-25 22:15:25,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 140 [2022-11-25 22:15:25,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:25,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:25,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:25,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2022-11-25 22:15:25,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:25,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:25,488 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:25,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:25,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:25,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:25,584 INFO L321 Elim1Store]: treesize reduction 101, result has 39.2 percent of original size [2022-11-25 22:15:25,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 153 [2022-11-25 22:15:25,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:25,848 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:25,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:25,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:25,888 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:25,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:25,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:25,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:26,017 INFO L321 Elim1Store]: treesize reduction 109, result has 34.3 percent of original size [2022-11-25 22:15:26,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 145 [2022-11-25 22:15:26,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:26,160 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:26,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:26,243 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:26,258 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:26,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:26,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:26,338 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:26,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:26,404 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:26,417 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:26,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:26,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:26,501 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:26,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:26,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:26,607 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:26,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:26,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:26,681 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:26,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:26,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:15:26,754 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-11-25 22:15:26,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2022-11-25 22:15:26,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:26,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:26,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 38 [2022-11-25 22:15:26,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:15:26,880 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-25 22:15:26,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 184 treesize of output 134 [2022-11-25 22:15:26,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-11-25 22:15:27,083 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 107 for LOIs [2022-11-25 22:15:27,147 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:15:28,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1430038043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:15:28,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:15:28,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8, 8] total 26 [2022-11-25 22:15:28,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043161315] [2022-11-25 22:15:28,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:15:28,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 22:15:28,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:28,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 22:15:28,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2022-11-25 22:15:28,849 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:15:31,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:31,873 INFO L93 Difference]: Finished difference Result 75 states and 89 transitions. [2022-11-25 22:15:31,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 22:15:31,874 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-11-25 22:15:31,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:31,875 INFO L225 Difference]: With dead ends: 75 [2022-11-25 22:15:31,875 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 22:15:31,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 97 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 22:15:31,877 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 70 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:31,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 5 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 22:15:31,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 22:15:31,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 22:15:31,878 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 22:15:31,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 22:15:31,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2022-11-25 22:15:31,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:31,879 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 22:15:31,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 22:15:31,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 22:15:31,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 22:15:31,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-25 22:15:31,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-25 22:15:31,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-25 22:15:31,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-25 22:15:31,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-25 22:15:31,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-25 22:15:31,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-25 22:15:31,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-25 22:15:31,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-25 22:15:31,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-25 22:15:31,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-25 22:15:31,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-25 22:15:31,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 22:15:32,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:15:32,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 22:15:41,440 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-25 22:15:41,440 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-11-25 22:15:41,440 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-11-25 22:15:41,440 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2022-11-25 22:15:41,441 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-11-25 22:15:41,441 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 22:15:41,441 INFO L895 garLoopResultBuilder]: At program point L61-2(lines 61 70) the Hoare annotation is: (let ((.cse20 (select |#memory_int| 1)) (.cse21 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4))) (let ((.cse0 (= 21 (select |#length| 2))) (.cse1 (= .cse21 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|))) (.cse2 (= (select |#length| 3) 12)) (.cse3 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|)) (.cse4 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|)) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse7 (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1)) (.cse8 (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse21)) (.cse9 (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1)) (.cse10 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse11 (= (select |#valid| 1) 1)) (.cse12 (= (select |#valid| 0) 0)) (.cse13 (= (select |#valid| 2) 1)) (.cse14 (= (select .cse20 0) 48)) (.cse15 (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|))) (.cse16 (= (select .cse20 1) 0)) (.cse17 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse18 (< 0 |#StackHeapBarrier|)) (.cse19 (= |#NULL.base| 0))) (or (and .cse0 (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 500 |ULTIMATE.start_main_~q~0#1|) (<= 700 |ULTIMATE.start_main_~s~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~q~0#1| 500) .cse3 (<= 0 |ULTIMATE.start_main_~#B~0#1.offset|) .cse4 (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 1000 |ULTIMATE.start_main_~m~0#1|) .cse5 .cse6 .cse7 (<= |#NULL.offset| 0) .cse8 .cse9 .cse10 (<= 0 |ULTIMATE.start_main_~#A~0#1.offset|) .cse11 .cse12 (<= |ULTIMATE.start_main_~s~0#1| 700) .cse13 .cse14 .cse15 (= |ULTIMATE.start_main_~j~0#1| 0) (<= 0 |#NULL.offset|) .cse16 .cse17 .cse18 .cse19) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~m~0#1| 1000) .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~q~0#1| 500) .cse7 .cse8 (<= |ULTIMATE.start_main_~i~0#1| 1000) .cse9 (= |ULTIMATE.start_main_~#A~0#1.offset| 0) .cse10 .cse11 (<= |ULTIMATE.start_main_~j~0#1| 2147483647) .cse12 (<= 700 |ULTIMATE.start_main_~j~0#1|) .cse13 (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) .cse14 .cse15 (= |ULTIMATE.start_main_~#B~0#1.offset| 0) .cse16 .cse17 .cse18 .cse19)))) [2022-11-25 22:15:41,441 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-11-25 22:15:41,442 INFO L895 garLoopResultBuilder]: At program point L45-2(lines 45 54) the Hoare annotation is: (let ((.cse20 (select |#memory_int| 1)) (.cse21 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4))) (let ((.cse0 (= 21 (select |#length| 2))) (.cse1 (= .cse21 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|))) (.cse2 (= (select |#length| 3) 12)) (.cse3 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|)) (.cse4 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|)) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse7 (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1)) (.cse8 (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse21)) (.cse9 (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1)) (.cse10 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse11 (= (select |#valid| 1) 1)) (.cse12 (= (select |#valid| 0) 0)) (.cse13 (= (select |#valid| 2) 1)) (.cse14 (= (select .cse20 0) 48)) (.cse15 (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|))) (.cse16 (= (select .cse20 1) 0)) (.cse17 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse18 (< 0 |#StackHeapBarrier|)) (.cse19 (= |#NULL.base| 0))) (or (and .cse0 (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 500 |ULTIMATE.start_main_~q~0#1|) (<= 700 |ULTIMATE.start_main_~s~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~q~0#1| 500) .cse3 (<= 0 |ULTIMATE.start_main_~#B~0#1.offset|) .cse4 (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 1000 |ULTIMATE.start_main_~m~0#1|) .cse5 .cse6 .cse7 (<= |#NULL.offset| 0) .cse8 .cse9 .cse10 (<= 0 |ULTIMATE.start_main_~#A~0#1.offset|) .cse11 .cse12 (<= |ULTIMATE.start_main_~s~0#1| 700) .cse13 .cse14 .cse15 (= |ULTIMATE.start_main_~j~0#1| 0) (<= 0 |#NULL.offset|) .cse16 .cse17 .cse18 .cse19) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~m~0#1| 1000) .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~q~0#1| 500) .cse7 .cse8 (<= |ULTIMATE.start_main_~i~0#1| 1000) .cse9 (= |ULTIMATE.start_main_~#A~0#1.offset| 0) .cse10 .cse11 (<= |ULTIMATE.start_main_~j~0#1| 2147483647) .cse12 (<= 700 |ULTIMATE.start_main_~j~0#1|) .cse13 (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) .cse14 .cse15 (= |ULTIMATE.start_main_~#B~0#1.offset| 0) .cse16 .cse17 .cse18 .cse19)))) [2022-11-25 22:15:41,442 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 67) no Hoare annotation was computed. [2022-11-25 22:15:41,442 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-11-25 22:15:41,442 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 67) no Hoare annotation was computed. [2022-11-25 22:15:41,442 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-11-25 22:15:41,442 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-11-25 22:15:41,443 INFO L895 garLoopResultBuilder]: At program point L63-2(lines 63 68) the Hoare annotation is: (let ((.cse0 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4)) (.cse1 (select |#memory_int| 1))) (and (= 21 (select |#length| 2)) (= .cse0 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~m~0#1| 1000) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~q~0#1| 500) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= (select |#valid| 0) 0) (<= |ULTIMATE.start_main_~i~0#1| 500) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (= (select .cse1 0) 48) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~n~0#1| 1500) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:15:41,443 INFO L899 garLoopResultBuilder]: For program point L63-3(lines 63 68) no Hoare annotation was computed. [2022-11-25 22:15:41,443 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 52) the Hoare annotation is: (let ((.cse0 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4)) (.cse1 (select |#memory_int| 1))) (and (= 21 (select |#length| 2)) (= .cse0 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~m~0#1| 1000) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~q~0#1| 500) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= (select |#valid| 0) 0) (<= |ULTIMATE.start_main_~i~0#1| 500) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (= (select .cse1 0) 48) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~n~0#1| 1500) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:15:41,443 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 52) no Hoare annotation was computed. [2022-11-25 22:15:41,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 69) no Hoare annotation was computed. [2022-11-25 22:15:41,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 69) no Hoare annotation was computed. [2022-11-25 22:15:41,444 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2022-11-25 22:15:41,444 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 41) the Hoare annotation is: (let ((.cse19 (select |#memory_int| 1)) (.cse20 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4))) (let ((.cse0 (= 21 (select |#length| 2))) (.cse1 (= .cse20 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|))) (.cse2 (= (select |#length| 3) 12)) (.cse3 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|)) (.cse4 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|)) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse7 (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1)) (.cse8 (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse20)) (.cse9 (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1)) (.cse10 (= (select |#valid| 1) 1)) (.cse11 (= (select |#valid| 0) 0)) (.cse12 (= (select |#valid| 2) 1)) (.cse13 (= (select .cse19 0) 48)) (.cse14 (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|))) (.cse15 (= (select .cse19 1) 0)) (.cse16 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse17 (< 0 |#StackHeapBarrier|)) (.cse18 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~m~0#1| 1000) .cse3 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 1500 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~q~0#1| 500) .cse7 .cse8 .cse9 (= |ULTIMATE.start_main_~#A~0#1.offset| 0) .cse10 (<= |ULTIMATE.start_main_~j~0#1| 2147483647) .cse11 .cse12 (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) .cse13 .cse14 (= |ULTIMATE.start_main_~#B~0#1.offset| 0) .cse15 .cse16 .cse17 .cse18) (and .cse0 (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 500 |ULTIMATE.start_main_~q~0#1|) (<= 700 |ULTIMATE.start_main_~s~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~q~0#1| 500) .cse3 (<= 0 |ULTIMATE.start_main_~#B~0#1.offset|) .cse4 (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 1000 |ULTIMATE.start_main_~m~0#1|) .cse5 .cse6 .cse7 (<= |#NULL.offset| 0) .cse8 .cse9 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.offset|) .cse10 .cse11 (<= |ULTIMATE.start_main_~s~0#1| 700) .cse12 .cse13 .cse14 (= |ULTIMATE.start_main_~j~0#1| 0) (<= 0 |#NULL.offset|) .cse15 .cse16 .cse17 .cse18)))) [2022-11-25 22:15:41,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 22:15:41,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 22:15:41,445 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 22:15:41,445 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2022-11-25 22:15:41,445 INFO L899 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2022-11-25 22:15:41,445 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 39) the Hoare annotation is: (let ((.cse0 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4)) (.cse4 (select |#memory_int| 1))) (and (= 21 (select |#length| 2)) (= .cse0 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= (select |#length| 3) 12) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (let ((.cse1 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse2 (= |ULTIMATE.start_main_~q~0#1| 500)) (.cse3 (<= 0 |ULTIMATE.start_main_~j~0#1|))) (or (and .cse1 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse2 .cse3 (<= |ULTIMATE.start_main_~i~0#1| 1000)) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse1 .cse2 .cse3))) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse0) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (= (select .cse4 0) 48) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= (select .cse4 1) 0) (= |ULTIMATE.start_main_~n~0#1| 1500) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:15:41,445 INFO L899 garLoopResultBuilder]: For program point L34-3(lines 34 39) no Hoare annotation was computed. [2022-11-25 22:15:41,445 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-11-25 22:15:41,446 INFO L895 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4)) (.cse1 (select |#memory_int| 1))) (and (= 21 (select |#length| 2)) (= .cse0 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~m~0#1| 1000) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~q~0#1| 500) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse0) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (= (select .cse1 0) 48) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~n~0#1| 1500) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:15:41,449 INFO L895 garLoopResultBuilder]: At program point L26-1(line 26) the Hoare annotation is: (let ((.cse0 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4)) (.cse1 (select |#memory_int| 1))) (and (= 21 (select |#length| 2)) (= .cse0 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~m~0#1| 1000) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~q~0#1| 500) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse0) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~s~0#1| 700) (= (select .cse1 0) 48) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (= (select .cse1 1) 0) (= |ULTIMATE.start_main_~n~0#1| 1500) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-25 22:15:41,449 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2022-11-25 22:15:41,451 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2022-11-25 22:15:41,452 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-11-25 22:15:41,452 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 5 7) the Hoare annotation is: true [2022-11-25 22:15:41,453 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-11-25 22:15:41,457 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:41,460 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:15:41,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:15:41 BoogieIcfgContainer [2022-11-25 22:15:41,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:15:41,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:15:41,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:15:41,547 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:15:41,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:14:54" (3/4) ... [2022-11-25 22:15:41,552 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 22:15:41,560 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-25 22:15:41,569 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-25 22:15:41,570 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-25 22:15:41,571 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 22:15:41,571 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 22:15:41,636 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:15:41,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:15:41,637 INFO L158 Benchmark]: Toolchain (without parser) took 48351.82ms. Allocated memory was 186.6MB in the beginning and 337.6MB in the end (delta: 151.0MB). Free memory was 153.6MB in the beginning and 179.8MB in the end (delta: -26.1MB). Peak memory consumption was 126.9MB. Max. memory is 16.1GB. [2022-11-25 22:15:41,638 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 186.6MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:15:41,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.30ms. Allocated memory is still 186.6MB. Free memory was 153.2MB in the beginning and 142.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 22:15:41,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.03ms. Allocated memory is still 186.6MB. Free memory was 142.7MB in the beginning and 141.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:15:41,639 INFO L158 Benchmark]: Boogie Preprocessor took 32.29ms. Allocated memory is still 186.6MB. Free memory was 141.1MB in the beginning and 139.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:15:41,639 INFO L158 Benchmark]: RCFGBuilder took 464.24ms. Allocated memory is still 186.6MB. Free memory was 139.4MB in the beginning and 123.4MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 22:15:41,640 INFO L158 Benchmark]: TraceAbstraction took 47457.07ms. Allocated memory was 186.6MB in the beginning and 337.6MB in the end (delta: 151.0MB). Free memory was 122.7MB in the beginning and 183.9MB in the end (delta: -61.3MB). Peak memory consumption was 169.1MB. Max. memory is 16.1GB. [2022-11-25 22:15:41,640 INFO L158 Benchmark]: Witness Printer took 90.34ms. Allocated memory is still 337.6MB. Free memory was 183.9MB in the beginning and 179.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:15:41,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 186.6MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.30ms. Allocated memory is still 186.6MB. Free memory was 153.2MB in the beginning and 142.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.03ms. Allocated memory is still 186.6MB. Free memory was 142.7MB in the beginning and 141.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.29ms. Allocated memory is still 186.6MB. Free memory was 141.1MB in the beginning and 139.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 464.24ms. Allocated memory is still 186.6MB. Free memory was 139.4MB in the beginning and 123.4MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 47457.07ms. Allocated memory was 186.6MB in the beginning and 337.6MB in the end (delta: 151.0MB). Free memory was 122.7MB in the beginning and 183.9MB in the end (delta: -61.3MB). Peak memory consumption was 169.1MB. Max. memory is 16.1GB. * Witness Printer took 90.34ms. Allocated memory is still 337.6MB. Free memory was 183.9MB in the beginning and 179.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 47.3s, OverallIterations: 9, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 549 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 549 mSDsluCounter, 196 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 201 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 984 IncrementalHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 201 mSolverCounterUnsat, 110 mSDtfsCounter, 984 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 494 GetRequests, 353 SyntacticMatches, 21 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 18.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=6, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 147 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 10 PreInvPairs, 37 NumberOfFragments, 1481 HoareAnnotationTreeSize, 10 FomulaSimplifications, 768 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 18496 FormulaSimplificationTreeSizeReductionInter, 8.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 856 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1048 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 204/344 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 10.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 73, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 279, TOOLS_POST_TIME: 7.3s, TOOLS_POST_CALL_APPLICATIONS: 24, TOOLS_POST_CALL_TIME: 0.8s, TOOLS_POST_RETURN_APPLICATIONS: 16, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 319, TOOLS_QUANTIFIERELIM_TIME: 8.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.4s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 531, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 53, DOMAIN_JOIN_TIME: 0.7s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 40, DOMAIN_WIDEN_TIME: 0.6s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 64, DOMAIN_ISSUBSETEQ_TIME: 0.2s, DOMAIN_ISBOTTOM_APPLICATIONS: 73, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 24, LOOP_SUMMARIZER_CACHE_MISSES: 24, LOOP_SUMMARIZER_OVERALL_TIME: 6.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 6.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 64, CALL_SUMMARIZER_APPLICATIONS: 16, CALL_SUMMARIZER_CACHE_MISSES: 4, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1848, DAG_COMPRESSION_RETAINED_NODES: 245, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && m * n % 1073741824 * 4 == unknown-#length-unknown[B]) && unknown-#length-unknown[3] == 12) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && 1 <= i) && 1500 <= j) && i <= 2147483647) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && \valid[B] == 1) && A == 0) && \valid[1] == 1) && j <= 2147483647) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && s == 700) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && m <= 1000) && 500 <= q) && 700 <= s) && m * n % 1073741824 * 4 == unknown-#length-unknown[B]) && unknown-#length-unknown[3] == 12) && B <= 0) && A <= 0) && q <= 500) && unknown-#StackHeapBarrier-unknown < A) && 0 <= B) && unknown-#StackHeapBarrier-unknown < B) && i <= 0) && 1000 <= m) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[A] == 1) && #NULL <= 0) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && \valid[B] == 1) && 0 <= i) && 0 <= A) && \valid[1] == 1) && \valid[0] == 0) && s <= 700) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && j == 0) && 0 <= #NULL) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && m * n % 1073741824 * 4 == unknown-#length-unknown[B]) && unknown-#length-unknown[3] == 12) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && 0 <= j) && \valid[B] == 1) && A == 0) && 0 <= i) && \valid[1] == 1) && j <= 2147483647) && \valid[0] == 0) && i <= 500) && \valid[2] == 1) && #NULL == 0) && s == 700) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && m <= 1000) && 500 <= q) && 700 <= s) && m * n % 1073741824 * 4 == unknown-#length-unknown[B]) && unknown-#length-unknown[3] == 12) && B <= 0) && A <= 0) && q <= 500) && unknown-#StackHeapBarrier-unknown < A) && 0 <= B) && unknown-#StackHeapBarrier-unknown < B) && i <= 0) && 1000 <= m) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[A] == 1) && #NULL <= 0) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && \valid[B] == 1) && 0 <= i) && 0 <= A) && \valid[1] == 1) && \valid[0] == 0) && s <= 700) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && j == 0) && 0 <= #NULL) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && m * n % 1073741824 * 4 == unknown-#length-unknown[B]) && unknown-#length-unknown[3] == 12) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && i <= 1000) && \valid[B] == 1) && A == 0) && 0 <= i) && \valid[1] == 1) && j <= 2147483647) && \valid[0] == 0) && 700 <= j) && \valid[2] == 1) && #NULL == 0) && s == 700) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && m * n % 1073741824 * 4 == unknown-#length-unknown[B]) && unknown-#length-unknown[3] == 12) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && 0 <= j) && \valid[B] == 1) && A == 0) && 0 <= i) && \valid[1] == 1) && j <= 2147483647) && \valid[0] == 0) && i <= 500) && \valid[2] == 1) && #NULL == 0) && s == 700) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && m <= 1000) && 500 <= q) && 700 <= s) && m * n % 1073741824 * 4 == unknown-#length-unknown[B]) && unknown-#length-unknown[3] == 12) && B <= 0) && A <= 0) && q <= 500) && unknown-#StackHeapBarrier-unknown < A) && 0 <= B) && unknown-#StackHeapBarrier-unknown < B) && i <= 0) && 1000 <= m) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[A] == 1) && #NULL <= 0) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && \valid[B] == 1) && 0 <= i) && 0 <= A) && \valid[1] == 1) && \valid[0] == 0) && s <= 700) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && j == 0) && 0 <= #NULL) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((((((((((((21 == unknown-#length-unknown[2] && m * n % 1073741824 * 4 == unknown-#length-unknown[B]) && unknown-#length-unknown[3] == 12) && m == 1000) && unknown-#StackHeapBarrier-unknown < A) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && q == 500) && \valid[A] == 1) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && i <= 1000) && \valid[B] == 1) && A == 0) && 0 <= i) && \valid[1] == 1) && j <= 2147483647) && \valid[0] == 0) && 700 <= j) && \valid[2] == 1) && #NULL == 0) && s == 700) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((21 == unknown-#length-unknown[2] && m * n % 1073741824 * 4 == unknown-#length-unknown[B]) && unknown-#length-unknown[3] == 12) && unknown-#StackHeapBarrier-unknown < A) && (((((m == 1000 && 1 <= i) && q == 500) && 0 <= j) && i <= 1000) || (((i == 0 && m == 1000) && q == 500) && 0 <= j))) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[A] == 1) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && \valid[B] == 1) && A == 0) && \valid[1] == 1) && j <= 2147483647) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && s == 700) && unknown-#memory_int-unknown[1][0] == 48) && !(B == A)) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-11-25 22:15:41,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8913f3ad-a250-4b4d-89d4-758dd411b8af/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