./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/copy-2-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/copy-2-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d9e382438d8fbe8dfce0f613a239dc56836f436a035cb511dde070c4306eb1f9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:23:09,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:23:09,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:23:09,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:23:09,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:23:09,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:23:09,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:23:09,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:23:09,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:23:09,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:23:09,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:23:09,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:23:09,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:23:09,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:23:09,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:23:09,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:23:09,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:23:09,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:23:09,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:23:09,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:23:09,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:23:09,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:23:09,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:23:09,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:23:09,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:23:09,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:23:09,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:23:09,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:23:09,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:23:09,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:23:09,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:23:09,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:23:09,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:23:09,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:23:09,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:23:09,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:23:09,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:23:09,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:23:09,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:23:09,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:23:09,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:23:09,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 11:23:09,773 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:23:09,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:23:09,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:23:09,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:23:09,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:23:09,775 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:23:09,775 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:23:09,775 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:23:09,775 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:23:09,775 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:23:09,775 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:23:09,776 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:23:09,776 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:23:09,776 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:23:09,776 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:23:09,776 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:23:09,776 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:23:09,777 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:23:09,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:23:09,777 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:23:09,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:23:09,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:23:09,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:23:09,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:23:09,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:23:09,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:23:09,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:23:09,779 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 11:23:09,779 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:23:09,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:23:09,779 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:23:09,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:23:09,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:23:09,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:23:09,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:23:09,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:23:09,780 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:23:09,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:23:09,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:23:09,781 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:23:09,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:23:09,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:23:09,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:23:09,781 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_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9e382438d8fbe8dfce0f613a239dc56836f436a035cb511dde070c4306eb1f9 [2022-12-14 11:23:09,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:23:09,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:23:09,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:23:09,989 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:23:09,990 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:23:09,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-multidimensional/copy-2-u.c [2022-12-14 11:23:12,546 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:23:12,709 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:23:12,709 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/sv-benchmarks/c/array-multidimensional/copy-2-u.c [2022-12-14 11:23:12,713 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/data/11a7c18ee/263fbd00ebae4648ba1ec7092a870b5d/FLAG5b9ab8d2a [2022-12-14 11:23:12,723 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/data/11a7c18ee/263fbd00ebae4648ba1ec7092a870b5d [2022-12-14 11:23:12,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:23:12,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:23:12,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:23:12,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:23:12,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:23:12,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495bca90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12, skipping insertion in model container [2022-12-14 11:23:12,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:23:12,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:23:12,855 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_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/sv-benchmarks/c/array-multidimensional/copy-2-u.c[320,333] [2022-12-14 11:23:12,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:23:12,873 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:23:12,881 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_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/sv-benchmarks/c/array-multidimensional/copy-2-u.c[320,333] [2022-12-14 11:23:12,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:23:12,899 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:23:12,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12 WrapperNode [2022-12-14 11:23:12,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:23:12,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:23:12,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:23:12,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:23:12,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,926 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2022-12-14 11:23:12,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:23:12,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:23:12,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:23:12,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:23:12,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,941 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:23:12,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:23:12,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:23:12,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:23:12,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (1/1) ... [2022-12-14 11:23:12,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:23:12,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:12,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:23:12,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:23:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:23:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:23:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:23:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:23:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:23:13,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:23:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:23:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:23:13,063 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:23:13,064 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:23:13,195 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:23:13,236 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:23:13,236 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-14 11:23:13,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:13 BoogieIcfgContainer [2022-12-14 11:23:13,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:23:13,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:23:13,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:23:13,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:23:13,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:23:12" (1/3) ... [2022-12-14 11:23:13,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c16cf29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:23:13, skipping insertion in model container [2022-12-14 11:23:13,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:12" (2/3) ... [2022-12-14 11:23:13,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c16cf29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:23:13, skipping insertion in model container [2022-12-14 11:23:13,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:13" (3/3) ... [2022-12-14 11:23:13,247 INFO L112 eAbstractionObserver]: Analyzing ICFG copy-2-u.c [2022-12-14 11:23:13,264 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:23:13,265 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-12-14 11:23:13,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:23:13,309 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;@a148141, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:23:13,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-14 11:23:13,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:13,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 11:23:13,317 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:13,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 11:23:13,318 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)] === [2022-12-14 11:23:13,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:13,322 INFO L85 PathProgramCache]: Analyzing trace with hash 4393875, now seen corresponding path program 1 times [2022-12-14 11:23:13,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:13,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84253085] [2022-12-14 11:23:13,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:13,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:13,399 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:23:13,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23680526] [2022-12-14 11:23:13,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:13,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:13,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:13,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:23:13,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:23:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:13,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 11:23:13,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:13,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:13,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:23:13,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:13,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84253085] [2022-12-14 11:23:13,491 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:23:13,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23680526] [2022-12-14 11:23:13,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23680526] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:13,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:13,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 11:23:13,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923080003] [2022-12-14 11:23:13,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:13,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:23:13,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:13,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:23:13,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:23:13,529 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:13,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:13,588 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-12-14 11:23:13,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:23:13,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 11:23:13,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:13,614 INFO L225 Difference]: With dead ends: 32 [2022-12-14 11:23:13,614 INFO L226 Difference]: Without dead ends: 28 [2022-12-14 11:23:13,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:23:13,619 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:13,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 12 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:23:13,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-14 11:23:13,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-12-14 11:23:13,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.736842105263158) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:13,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-12-14 11:23:13,648 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 4 [2022-12-14 11:23:13,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:13,648 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-12-14 11:23:13,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:13,649 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-12-14 11:23:13,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 11:23:13,649 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:13,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 11:23:13,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:23:13,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 11:23:13,852 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)] === [2022-12-14 11:23:13,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:13,854 INFO L85 PathProgramCache]: Analyzing trace with hash 4390489, now seen corresponding path program 1 times [2022-12-14 11:23:13,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:13,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325469614] [2022-12-14 11:23:13,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:13,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:13,883 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:23:13,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [149474547] [2022-12-14 11:23:13,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:13,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:13,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:13,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:23:13,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:23:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:14,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 11:23:14,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:14,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:23:14,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:14,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325469614] [2022-12-14 11:23:14,015 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:23:14,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149474547] [2022-12-14 11:23:14,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149474547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:14,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:14,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:23:14,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375674449] [2022-12-14 11:23:14,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:14,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:23:14,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:14,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:23:14,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:23:14,017 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:14,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:14,048 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2022-12-14 11:23:14,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:23:14,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 11:23:14,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:14,049 INFO L225 Difference]: With dead ends: 28 [2022-12-14 11:23:14,049 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 11:23:14,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:23:14,051 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:14,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:23:14,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 11:23:14,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-14 11:23:14,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:14,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-12-14 11:23:14,057 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 4 [2022-12-14 11:23:14,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:14,058 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-12-14 11:23:14,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:14,058 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-12-14 11:23:14,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 11:23:14,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:14,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 11:23:14,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:23:14,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:14,261 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)] === [2022-12-14 11:23:14,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:14,263 INFO L85 PathProgramCache]: Analyzing trace with hash 136210186, now seen corresponding path program 1 times [2022-12-14 11:23:14,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:14,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234600213] [2022-12-14 11:23:14,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:14,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:14,296 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:23:14,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829069972] [2022-12-14 11:23:14,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:14,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:14,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:14,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:23:14,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:23:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:14,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 11:23:14,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:14,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:14,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:23:14,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:14,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234600213] [2022-12-14 11:23:14,361 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:23:14,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829069972] [2022-12-14 11:23:14,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829069972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:14,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:14,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 11:23:14,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223315791] [2022-12-14 11:23:14,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:14,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:23:14,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:14,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:23:14,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:23:14,363 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:14,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:14,406 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2022-12-14 11:23:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:23:14,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 11:23:14,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:14,407 INFO L225 Difference]: With dead ends: 49 [2022-12-14 11:23:14,407 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 11:23:14,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:23:14,409 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 18 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:14,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 21 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:23:14,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 11:23:14,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2022-12-14 11:23:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 42 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:14,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2022-12-14 11:23:14,418 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 5 [2022-12-14 11:23:14,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:14,419 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2022-12-14 11:23:14,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:14,419 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2022-12-14 11:23:14,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 11:23:14,419 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:14,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 11:23:14,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:23:14,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:14,622 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)] === [2022-12-14 11:23:14,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:14,625 INFO L85 PathProgramCache]: Analyzing trace with hash 136105213, now seen corresponding path program 1 times [2022-12-14 11:23:14,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:14,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41335717] [2022-12-14 11:23:14,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:14,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:14,656 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:23:14,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508097647] [2022-12-14 11:23:14,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:14,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:14,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:14,662 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:23:14,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:23:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:14,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 11:23:14,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:14,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:23:14,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:14,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41335717] [2022-12-14 11:23:14,750 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:23:14,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508097647] [2022-12-14 11:23:14,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508097647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:14,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:14,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:23:14,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377118217] [2022-12-14 11:23:14,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:14,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:23:14,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:14,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:23:14,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:23:14,752 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:14,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:14,797 INFO L93 Difference]: Finished difference Result 82 states and 106 transitions. [2022-12-14 11:23:14,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:23:14,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 11:23:14,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:14,798 INFO L225 Difference]: With dead ends: 82 [2022-12-14 11:23:14,798 INFO L226 Difference]: Without dead ends: 79 [2022-12-14 11:23:14,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:23:14,800 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:14,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 24 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:23:14,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-12-14 11:23:14,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 61. [2022-12-14 11:23:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 60 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-12-14 11:23:14,812 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 5 [2022-12-14 11:23:14,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:14,812 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-12-14 11:23:14,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:14,812 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-12-14 11:23:14,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 11:23:14,813 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:14,813 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-12-14 11:23:14,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 11:23:15,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:15,016 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)] === [2022-12-14 11:23:15,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:15,017 INFO L85 PathProgramCache]: Analyzing trace with hash 261322775, now seen corresponding path program 1 times [2022-12-14 11:23:15,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:15,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357477550] [2022-12-14 11:23:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:15,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:15,042 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:23:15,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176508783] [2022-12-14 11:23:15,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:15,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:15,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:15,047 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:23:15,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 11:23:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:15,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:23:15,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:15,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:23:15,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:15,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:15,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357477550] [2022-12-14 11:23:15,148 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:23:15,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176508783] [2022-12-14 11:23:15,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176508783] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:23:15,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1512256099] [2022-12-14 11:23:15,166 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-12-14 11:23:15,166 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:23:15,169 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:23:15,174 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:23:15,175 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:23:15,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:15,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:15,297 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-12-14 11:23:15,298 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 [2022-12-14 11:23:15,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:15,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:15,380 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-12-14 11:23:15,380 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 [2022-12-14 11:23:15,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:15,440 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 [2022-12-14 11:23:15,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:15,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:15,586 INFO L321 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-12-14 11:23:15,587 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 344 treesize of output 327 [2022-12-14 11:23:15,717 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 [2022-12-14 11:23:15,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-12-14 11:23:15,769 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:23:16,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1512256099] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:16,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:23:16,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 8 [2022-12-14 11:23:16,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498193098] [2022-12-14 11:23:16,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:16,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:23:16,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:16,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:23:16,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:23:16,014 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:16,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:16,287 INFO L93 Difference]: Finished difference Result 114 states and 148 transitions. [2022-12-14 11:23:16,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:23:16,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 11:23:16,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:16,288 INFO L225 Difference]: With dead ends: 114 [2022-12-14 11:23:16,288 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 11:23:16,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-12-14 11:23:16,289 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:16,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 17 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:23:16,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 11:23:16,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2022-12-14 11:23:16,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 58 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:16,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-12-14 11:23:16,298 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 8 [2022-12-14 11:23:16,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:16,298 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-12-14 11:23:16,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:16,298 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-12-14 11:23:16,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 11:23:16,298 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:16,299 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 11:23:16,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 11:23:16,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:16,500 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)] === [2022-12-14 11:23:16,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:16,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1020026780, now seen corresponding path program 1 times [2022-12-14 11:23:16,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:16,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340613346] [2022-12-14 11:23:16,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:16,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:16,521 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:23:16,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19694223] [2022-12-14 11:23:16,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:16,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:16,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:16,526 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:23:16,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 11:23:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:16,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:23:16,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 11:23:16,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:23:16,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 11:23:16,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:16,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340613346] [2022-12-14 11:23:16,737 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:23:16,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19694223] [2022-12-14 11:23:16,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19694223] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:23:16,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2077464880] [2022-12-14 11:23:16,739 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 11:23:16,739 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:23:16,739 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:23:16,739 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:23:16,740 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:23:16,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:16,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:16,798 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-12-14 11:23:16,798 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 [2022-12-14 11:23:16,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:16,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:16,809 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 [2022-12-14 11:23:16,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:16,841 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 [2022-12-14 11:23:16,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:16,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:16,959 INFO L321 Elim1Store]: treesize reduction 70, result has 27.8 percent of original size [2022-12-14 11:23:16,959 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 336 treesize of output 329 [2022-12-14 11:23:17,266 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 [2022-12-14 11:23:17,315 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 [2022-12-14 11:23:17,355 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 [2022-12-14 11:23:17,379 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:23:17,614 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '875#(and (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0))' at error location [2022-12-14 11:23:17,614 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 11:23:17,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:23:17,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-12-14 11:23:17,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455476584] [2022-12-14 11:23:17,615 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 11:23:17,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 11:23:17,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:17,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 11:23:17,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:23:17,616 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:17,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:17,714 INFO L93 Difference]: Finished difference Result 159 states and 215 transitions. [2022-12-14 11:23:17,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:23:17,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 11:23:17,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:17,715 INFO L225 Difference]: With dead ends: 159 [2022-12-14 11:23:17,715 INFO L226 Difference]: Without dead ends: 106 [2022-12-14 11:23:17,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:23:17,715 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 91 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:17,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 36 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:23:17,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-12-14 11:23:17,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 103. [2022-12-14 11:23:17,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 97 states have (on average 1.2268041237113403) internal successors, (119), 102 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:17,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 119 transitions. [2022-12-14 11:23:17,724 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 119 transitions. Word has length 12 [2022-12-14 11:23:17,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:17,724 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 119 transitions. [2022-12-14 11:23:17,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:17,724 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 119 transitions. [2022-12-14 11:23:17,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 11:23:17,725 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:17,725 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 2, 1, 1, 1, 1, 1] [2022-12-14 11:23:17,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 11:23:17,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:17,926 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)] === [2022-12-14 11:23:17,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:17,926 INFO L85 PathProgramCache]: Analyzing trace with hash 2041619125, now seen corresponding path program 1 times [2022-12-14 11:23:17,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:17,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949380205] [2022-12-14 11:23:17,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:17,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:17,932 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:23:17,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [678796480] [2022-12-14 11:23:17,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:17,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:17,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:17,934 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:23:17,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 11:23:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:17,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:23:17,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:18,050 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 40 proven. 22 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 11:23:18,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:23:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 40 proven. 22 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 11:23:18,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:18,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949380205] [2022-12-14 11:23:18,101 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:23:18,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678796480] [2022-12-14 11:23:18,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678796480] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:23:18,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1438509956] [2022-12-14 11:23:18,104 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 11:23:18,104 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:23:18,104 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:23:18,104 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:23:18,104 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:23:18,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:18,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:18,163 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-12-14 11:23:18,163 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 [2022-12-14 11:23:18,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:18,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:18,175 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 [2022-12-14 11:23:18,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:18,210 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 [2022-12-14 11:23:18,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:18,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:18,319 INFO L321 Elim1Store]: treesize reduction 70, result has 27.8 percent of original size [2022-12-14 11:23:18,319 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 336 treesize of output 329 [2022-12-14 11:23:18,625 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 [2022-12-14 11:23:18,692 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 [2022-12-14 11:23:18,725 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 [2022-12-14 11:23:18,763 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:23:18,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1438509956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:18,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:23:18,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 7] total 17 [2022-12-14 11:23:18,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924435] [2022-12-14 11:23:18,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:18,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:23:18,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:18,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:23:18,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2022-12-14 11:23:18,935 INFO L87 Difference]: Start difference. First operand 103 states and 119 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:19,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:19,095 INFO L93 Difference]: Finished difference Result 103 states and 119 transitions. [2022-12-14 11:23:19,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:23:19,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-12-14 11:23:19,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:19,096 INFO L225 Difference]: With dead ends: 103 [2022-12-14 11:23:19,097 INFO L226 Difference]: Without dead ends: 102 [2022-12-14 11:23:19,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2022-12-14 11:23:19,097 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:19,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 0 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:23:19,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-14 11:23:19,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-12-14 11:23:19,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 97 states have (on average 1.2061855670103092) internal successors, (117), 101 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:19,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2022-12-14 11:23:19,112 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 27 [2022-12-14 11:23:19,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:19,112 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2022-12-14 11:23:19,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:19,112 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2022-12-14 11:23:19,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 11:23:19,113 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:19,113 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:23:19,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 11:23:19,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 11:23:19,314 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)] === [2022-12-14 11:23:19,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:19,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1831287191, now seen corresponding path program 1 times [2022-12-14 11:23:19,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:19,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897881296] [2022-12-14 11:23:19,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:19,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:19,347 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:23:19,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1940211966] [2022-12-14 11:23:19,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:19,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:19,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:19,352 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:23:19,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 11:23:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:19,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:23:19,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:19,501 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 11:23:19,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:23:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 11:23:19,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:19,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897881296] [2022-12-14 11:23:19,535 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:23:19,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940211966] [2022-12-14 11:23:19,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940211966] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:23:19,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [554846331] [2022-12-14 11:23:19,536 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 11:23:19,536 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:23:19,536 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:23:19,536 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:23:19,537 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:23:19,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:19,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:19,577 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-12-14 11:23:19,578 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 [2022-12-14 11:23:19,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:19,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:19,633 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-12-14 11:23:19,634 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 [2022-12-14 11:23:19,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:19,670 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 [2022-12-14 11:23:19,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:19,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:19,792 INFO L321 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-12-14 11:23:19,792 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 344 treesize of output 327 [2022-12-14 11:23:20,053 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 [2022-12-14 11:23:20,082 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 [2022-12-14 11:23:20,100 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 [2022-12-14 11:23:20,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:20,189 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-12-14 11:23:20,190 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 [2022-12-14 11:23:20,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:20,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:20,222 INFO L321 Elim1Store]: treesize reduction 34, result has 32.0 percent of original size [2022-12-14 11:23:20,222 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 3 case distinctions, treesize of input 116 treesize of output 121 [2022-12-14 11:23:20,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:20,256 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-12-14 11:23:20,257 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 [2022-12-14 11:23:20,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:20,273 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-12-14 11:23:20,273 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 [2022-12-14 11:23:20,279 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:23:22,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [554846331] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:22,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:23:22,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 20 [2022-12-14 11:23:22,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785382349] [2022-12-14 11:23:22,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:22,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 11:23:22,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:22,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 11:23:22,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:23:22,667 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:23,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:23,289 INFO L93 Difference]: Finished difference Result 137 states and 156 transitions. [2022-12-14 11:23:23,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:23:23,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 11:23:23,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:23,290 INFO L225 Difference]: With dead ends: 137 [2022-12-14 11:23:23,291 INFO L226 Difference]: Without dead ends: 102 [2022-12-14 11:23:23,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=208, Invalid=494, Unknown=0, NotChecked=0, Total=702 [2022-12-14 11:23:23,292 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:23,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 0 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:23:23,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-14 11:23:23,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-12-14 11:23:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 97 states have (on average 1.1546391752577319) internal successors, (112), 101 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 112 transitions. [2022-12-14 11:23:23,302 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 112 transitions. Word has length 28 [2022-12-14 11:23:23,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:23,302 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 112 transitions. [2022-12-14 11:23:23,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:23,302 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 112 transitions. [2022-12-14 11:23:23,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 11:23:23,303 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:23,303 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1] [2022-12-14 11:23:23,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 11:23:23,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:23,505 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-14 11:23:23,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:23,506 INFO L85 PathProgramCache]: Analyzing trace with hash -431946622, now seen corresponding path program 2 times [2022-12-14 11:23:23,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:23,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061868189] [2022-12-14 11:23:23,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:23,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:23,531 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:23:23,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [494240362] [2022-12-14 11:23:23,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 11:23:23,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:23,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:23,535 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:23:23,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 11:23:23,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 11:23:23,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 11:23:23,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:23:23,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-14 11:23:23,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:23:23,655 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-14 11:23:23,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:23,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061868189] [2022-12-14 11:23:23,655 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:23:23,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494240362] [2022-12-14 11:23:23,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494240362] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:23:23,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1656862872] [2022-12-14 11:23:23,657 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 11:23:23,657 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:23:23,657 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:23:23,658 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:23:23,658 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:23:23,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:23,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:23,699 INFO L321 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2022-12-14 11:23:23,700 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 [2022-12-14 11:23:23,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:23,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:23,749 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-12-14 11:23:23,750 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 [2022-12-14 11:23:23,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:23,775 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 [2022-12-14 11:23:23,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:23,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:23,861 INFO L321 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-12-14 11:23:23,862 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 344 treesize of output 327 [2022-12-14 11:23:24,054 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 [2022-12-14 11:23:24,078 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 [2022-12-14 11:23:24,101 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 [2022-12-14 11:23:24,116 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:23:30,583 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 106 DAG size of output: 86 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:23:30,693 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2404#(and (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0))' at error location [2022-12-14 11:23:30,693 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 11:23:30,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:23:30,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-12-14 11:23:30,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294652212] [2022-12-14 11:23:30,693 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-14 11:23:30,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:23:30,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:30,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:23:30,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-14 11:23:30,694 INFO L87 Difference]: Start difference. First operand 102 states and 112 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:30,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:30,734 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2022-12-14 11:23:30,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:23:30,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-12-14 11:23:30,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:30,736 INFO L225 Difference]: With dead ends: 102 [2022-12-14 11:23:30,736 INFO L226 Difference]: Without dead ends: 99 [2022-12-14 11:23:30,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 86 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:23:30,737 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 8 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 [2022-12-14 11:23:30,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 8 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:23:30,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-14 11:23:30,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 80. [2022-12-14 11:23:30,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 1.141025641025641) internal successors, (89), 79 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:30,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2022-12-14 11:23:30,745 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 33 [2022-12-14 11:23:30,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:30,745 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2022-12-14 11:23:30,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:30,745 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2022-12-14 11:23:30,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 11:23:30,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:30,746 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:23:30,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 11:23:30,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:30,947 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-14 11:23:30,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:30,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1679386001, now seen corresponding path program 1 times [2022-12-14 11:23:30,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:30,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574469955] [2022-12-14 11:23:30,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:30,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:30,954 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:23:30,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364938119] [2022-12-14 11:23:30,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:30,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:30,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:30,955 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:23:30,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 11:23:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:31,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:23:31,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:31,064 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-12-14 11:23:31,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:23:31,105 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-12-14 11:23:31,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:23:31,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574469955] [2022-12-14 11:23:31,106 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:23:31,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364938119] [2022-12-14 11:23:31,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364938119] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:23:31,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1982568441] [2022-12-14 11:23:31,108 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 11:23:31,108 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:23:31,108 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:23:31,108 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:23:31,108 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:23:31,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:31,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:31,164 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-12-14 11:23:31,164 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 [2022-12-14 11:23:31,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:31,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:31,174 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 [2022-12-14 11:23:31,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:31,209 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 [2022-12-14 11:23:31,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:31,268 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 [2022-12-14 11:23:31,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:31,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:31,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:31,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:31,546 INFO L321 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2022-12-14 11:23:31,546 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 428 treesize of output 372 [2022-12-14 11:23:31,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-12-14 11:23:31,705 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 [2022-12-14 11:23:31,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:31,801 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-12-14 11:23:31,801 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 [2022-12-14 11:23:31,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:31,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:31,865 INFO L321 Elim1Store]: treesize reduction 109, result has 34.3 percent of original size [2022-12-14 11:23:31,865 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 108 treesize of output 127 [2022-12-14 11:23:31,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:31,938 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-12-14 11:23:31,939 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 [2022-12-14 11:23:31,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:31,999 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-12-14 11:23:31,999 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 [2022-12-14 11:23:32,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:23:32,047 INFO L321 Elim1Store]: treesize reduction 26, result has 38.1 percent of original size [2022-12-14 11:23:32,047 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 [2022-12-14 11:23:32,127 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 [2022-12-14 11:23:32,133 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:23:32,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1982568441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:32,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:23:32,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7] total 21 [2022-12-14 11:23:32,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313713280] [2022-12-14 11:23:32,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:32,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 11:23:32,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:23:32,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 11:23:32,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:23:32,831 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:33,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:33,137 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2022-12-14 11:23:33,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:23:33,137 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-12-14 11:23:33,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:33,138 INFO L225 Difference]: With dead ends: 80 [2022-12-14 11:23:33,138 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 11:23:33,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 11 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2022-12-14 11:23:33,139 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:33,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 0 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:23:33,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 11:23:33,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 11:23:33,140 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) [2022-12-14 11:23:33,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 11:23:33,140 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2022-12-14 11:23:33,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:33,140 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 11:23:33,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:23:33,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 11:23:33,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 11:23:33,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-12-14 11:23:33,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-12-14 11:23:33,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-12-14 11:23:33,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-12-14 11:23:33,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-12-14 11:23:33,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-12-14 11:23:33,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-12-14 11:23:33,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-12-14 11:23:33,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-12-14 11:23:33,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-12-14 11:23:33,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-12-14 11:23:33,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-12-14 11:23:33,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 11:23:33,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 11:23:33,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 11:23:37,869 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-14 11:23:37,870 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 32) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0)) [2022-12-14 11:23:37,870 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 32) no Hoare annotation was computed. [2022-12-14 11:23:37,870 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-12-14 11:23:37,870 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-12-14 11:23:37,870 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-12-14 11:23:37,870 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2022-12-14 11:23:37,870 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2022-12-14 11:23:37,871 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2022-12-14 11:23:37,871 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-12-14 11:23:37,871 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-12-14 11:23:37,871 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2022-12-14 11:23:37,871 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 11:23:37,871 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2022-12-14 11:23:37,871 INFO L895 garLoopResultBuilder]: At program point L55-2(lines 55 64) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse1 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse2 (= |#NULL.offset| 0)) (.cse3 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse4 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse5 (<= 0 |#StackHeapBarrier|)) (.cse6 (= |ULTIMATE.start_main_~n~0#1| 1000)) (.cse7 (= |#NULL.base| 0))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~j~0#1| 0) .cse4 .cse5 .cse6 .cse7) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse1 (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7))) [2022-12-14 11:23:37,871 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-12-14 11:23:37,871 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 63) no Hoare annotation was computed. [2022-12-14 11:23:37,872 INFO L895 garLoopResultBuilder]: At program point L39-2(lines 39 48) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse1 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse2 (= |#NULL.offset| 0)) (.cse3 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse4 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse5 (<= 0 |#StackHeapBarrier|)) (.cse6 (= |ULTIMATE.start_main_~n~0#1| 1000)) (.cse7 (= |#NULL.base| 0))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~j~0#1| 0) .cse4 .cse5 .cse6 .cse7) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse1 (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7))) [2022-12-14 11:23:37,872 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-12-14 11:23:37,872 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-12-14 11:23:37,872 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 63) no Hoare annotation was computed. [2022-12-14 11:23:37,872 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-12-14 11:23:37,872 INFO L895 garLoopResultBuilder]: At program point L57-2(lines 57 62) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0)) [2022-12-14 11:23:37,872 INFO L899 garLoopResultBuilder]: For program point L57-3(lines 57 62) no Hoare annotation was computed. [2022-12-14 11:23:37,872 INFO L895 garLoopResultBuilder]: At program point L41-2(lines 41 46) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0)) [2022-12-14 11:23:37,873 INFO L899 garLoopResultBuilder]: For program point L41-3(lines 41 46) no Hoare annotation was computed. [2022-12-14 11:23:37,873 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2022-12-14 11:23:37,873 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 11:23:37,873 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2022-12-14 11:23:37,873 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 34) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse2 (= |#NULL.offset| 0)) (.cse4 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse5 (= |ULTIMATE.start_main_~n~0#1| 1000)) (.cse6 (= |#NULL.base| 0))) (or (let ((.cse1 (* (mod (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4)) (.cse3 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~i~0#1| 0) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) .cse0 (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select |#length| |ULTIMATE.start_main_~#B~0#1.base|) .cse1) .cse2 (= (select .cse3 0) 48) (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse1) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~j~0#1| 0) .cse4 (= (select .cse3 1) 0) (< 0 |#StackHeapBarrier|) .cse5 .cse6)) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse0 (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) .cse2 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) .cse4 (<= 0 |#StackHeapBarrier|) .cse5 .cse6))) [2022-12-14 11:23:37,873 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-14 11:23:37,873 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-12-14 11:23:37,876 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:23:37,878 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:23:37,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:23:37 BoogieIcfgContainer [2022-12-14 11:23:37,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:23:37,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:23:37,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:23:37,899 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:23:37,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:13" (3/4) ... [2022-12-14 11:23:37,902 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 11:23:37,909 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-12-14 11:23:37,910 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-14 11:23:37,910 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 11:23:37,910 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 11:23:37,937 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 11:23:37,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:23:37,938 INFO L158 Benchmark]: Toolchain (without parser) took 25212.45ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 96.6MB in the beginning and 71.9MB in the end (delta: 24.7MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2022-12-14 11:23:37,938 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:23:37,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.91ms. Allocated memory is still 132.1MB. Free memory was 96.1MB in the beginning and 85.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 11:23:37,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.01ms. Allocated memory is still 132.1MB. Free memory was 85.9MB in the beginning and 84.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:23:37,939 INFO L158 Benchmark]: Boogie Preprocessor took 16.17ms. Allocated memory is still 132.1MB. Free memory was 84.4MB in the beginning and 83.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:23:37,939 INFO L158 Benchmark]: RCFGBuilder took 294.78ms. Allocated memory is still 132.1MB. Free memory was 82.7MB in the beginning and 68.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 11:23:37,939 INFO L158 Benchmark]: TraceAbstraction took 24658.00ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 67.2MB in the beginning and 75.0MB in the end (delta: -7.8MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2022-12-14 11:23:37,939 INFO L158 Benchmark]: Witness Printer took 38.64ms. Allocated memory is still 174.1MB. Free memory was 75.0MB in the beginning and 71.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:23:37,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 173.91ms. Allocated memory is still 132.1MB. Free memory was 96.1MB in the beginning and 85.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.01ms. Allocated memory is still 132.1MB. Free memory was 85.9MB in the beginning and 84.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.17ms. Allocated memory is still 132.1MB. Free memory was 84.4MB in the beginning and 83.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.78ms. Allocated memory is still 132.1MB. Free memory was 82.7MB in the beginning and 68.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 24658.00ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 67.2MB in the beginning and 75.0MB in the end (delta: -7.8MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Witness Printer took 38.64ms. Allocated memory is still 174.1MB. Free memory was 75.0MB in the beginning and 71.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 24.6s, OverallIterations: 10, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 329 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 329 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 174 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 705 IncrementalHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 174 mSolverCounterUnsat, 85 mSDtfsCounter, 705 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 476 GetRequests, 352 SyntacticMatches, 20 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=6, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 45 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 37 NumberOfFragments, 403 HoareAnnotationTreeSize, 6 FomulaSimplifications, 624 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 1473 FormulaSimplificationTreeSizeReductionInter, 4.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 170 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 306 ConstructedInterpolants, 0 QuantifiedInterpolants, 920 SizeOfPredicates, 10 NumberOfNonLiveVariables, 938 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 362/620 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: 3.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 55, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 198, TOOLS_POST_TIME: 2.6s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 195, TOOLS_QUANTIFIERELIM_TIME: 2.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 322, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 25, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 16, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 28, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 55, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 12, LOOP_SUMMARIZER_CACHE_MISSES: 12, LOOP_SUMMARIZER_OVERALL_TIME: 2.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 28, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 748, DAG_COMPRESSION_RETAINED_NODES: 160, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((unknown-#length-unknown[3] == 12 && i == 0) && unknown-#StackHeapBarrier-unknown < A) && unknown-#StackHeapBarrier-unknown < B) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[A] == 1) && \valid[B] == 1) && A == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#length-unknown[B] == n * n % 1073741824 * 4) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#length-unknown[A] == n * n % 1073741824 * 4) && !(B == A)) && j == 0) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) || (((((((((((1 <= i && 0 <= A) && i <= 2147483646) && A == 0) && n <= j) && j <= 2147483647) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((i == 0 && 0 <= A) && A == 0) && #NULL == 0) && 0 <= B) && j == 0) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) || (((((((((((1 <= i && 0 <= A) && i <= 2147483646) && A == 0) && n <= j) && j <= 2147483647) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: (((((((((i == 0 && 0 <= A) && A == 0) && #NULL == 0) && 0 <= B) && j == 0) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) || (((((((((((1 <= i && 0 <= A) && i <= 2147483646) && A == 0) && n <= j) && j <= 2147483647) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: ((((((((((0 <= A && i <= 999) && 0 <= j) && A == 0) && 0 <= i) && j <= 2147483647) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((0 <= A && i <= 999) && 0 <= j) && A == 0) && 0 <= i) && j <= 2147483647) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: ((((((((((0 <= A && i <= 999) && 0 <= j) && A == 0) && 0 <= i) && j <= 2147483647) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 11:23:37,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89a545e4-2a90-4ffd-82dc-04b7b3ac0a07/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE