./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/verifythis/lcp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/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_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/lcp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/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_0b8e62f0-b870-4e33-82d5-6a7383331821/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 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a --- 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 15:25:46,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:25:46,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:25:46,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:25:46,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:25:46,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:25:46,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:25:46,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:25:46,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:25:46,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:25:46,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:25:46,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:25:46,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:25:46,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:25:46,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:25:46,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:25:46,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:25:46,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:25:46,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:25:46,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:25:46,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:25:46,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:25:46,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:25:46,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:25:46,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:25:46,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:25:46,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:25:46,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:25:46,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:25:46,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:25:46,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:25:46,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:25:46,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:25:46,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:25:46,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:25:46,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:25:46,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:25:46,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:25:46,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:25:46,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:25:46,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:25:46,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 15:25:46,579 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:25:46,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:25:46,580 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:25:46,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:25:46,580 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:25:46,580 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:25:46,581 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:25:46,581 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:25:46,581 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:25:46,581 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:25:46,581 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:25:46,581 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:25:46,581 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:25:46,581 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:25:46,582 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:25:46,582 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:25:46,582 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:25:46,582 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:25:46,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:25:46,583 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:25:46,583 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:25:46,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:25:46,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:25:46,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:25:46,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:25:46,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:25:46,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:25:46,584 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:25:46,584 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:25:46,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:25:46,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:25:46,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:25:46,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:25:46,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:25:46,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:25:46,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:25:46,585 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:25:46,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:25:46,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:25:46,585 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:25:46,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:25:46,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:25:46,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:25:46,586 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_0b8e62f0-b870-4e33-82d5-6a7383331821/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a [2022-12-14 15:25:46,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:25:46,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:25:46,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:25:46,784 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:25:46,784 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:25:46,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/verifythis/lcp.c [2022-12-14 15:25:49,406 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:25:49,574 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:25:49,574 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/sv-benchmarks/c/verifythis/lcp.c [2022-12-14 15:25:49,578 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/data/91ecf2341/6560dfa1f7244d8cbb91fdc2e9c1fbbe/FLAG143e49994 [2022-12-14 15:25:49,589 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/data/91ecf2341/6560dfa1f7244d8cbb91fdc2e9c1fbbe [2022-12-14 15:25:49,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:25:49,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:25:49,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:25:49,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:25:49,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:25:49,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@435e18dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49, skipping insertion in model container [2022-12-14 15:25:49,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:25:49,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:25:49,725 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_0b8e62f0-b870-4e33-82d5-6a7383331821/sv-benchmarks/c/verifythis/lcp.c[515,528] [2022-12-14 15:25:49,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:25:49,752 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:25:49,765 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_0b8e62f0-b870-4e33-82d5-6a7383331821/sv-benchmarks/c/verifythis/lcp.c[515,528] [2022-12-14 15:25:49,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:25:49,782 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:25:49,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49 WrapperNode [2022-12-14 15:25:49,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:25:49,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:25:49,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:25:49,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:25:49,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,818 INFO L138 Inliner]: procedures = 20, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2022-12-14 15:25:49,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:25:49,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:25:49,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:25:49,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:25:49,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,842 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:25:49,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:25:49,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:25:49,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:25:49,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (1/1) ... [2022-12-14 15:25:49,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:25:49,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:25:49,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:25:49,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:25:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:25:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 15:25:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 15:25:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:25:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:25:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:25:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:25:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:25:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 15:25:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 15:25:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:25:49,976 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:25:49,978 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:25:50,175 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:25:50,205 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:25:50,206 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 15:25:50,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:25:50 BoogieIcfgContainer [2022-12-14 15:25:50,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:25:50,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:25:50,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:25:50,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:25:50,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:25:49" (1/3) ... [2022-12-14 15:25:50,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546cb874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:25:50, skipping insertion in model container [2022-12-14 15:25:50,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:25:49" (2/3) ... [2022-12-14 15:25:50,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546cb874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:25:50, skipping insertion in model container [2022-12-14 15:25:50,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:25:50" (3/3) ... [2022-12-14 15:25:50,216 INFO L112 eAbstractionObserver]: Analyzing ICFG lcp.c [2022-12-14 15:25:50,235 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:25:50,235 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-12-14 15:25:50,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:25:50,280 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;@5541b61e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:25:50,280 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-14 15:25:50,284 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 59 states have internal predecessors, (65), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:25:50,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:25:50,289 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:50,289 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:50,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:50,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:50,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1083793296, now seen corresponding path program 1 times [2022-12-14 15:25:50,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:50,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004107915] [2022-12-14 15:25:50,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:50,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:50,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:25:50,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:50,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004107915] [2022-12-14 15:25:50,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004107915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:50,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:50,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:25:50,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616671636] [2022-12-14 15:25:50,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:50,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:25:50,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:50,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:25:50,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:25:50,569 INFO L87 Difference]: Start difference. First operand has 67 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 59 states have internal predecessors, (65), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:25:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:50,687 INFO L93 Difference]: Finished difference Result 163 states and 181 transitions. [2022-12-14 15:25:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:25:50,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 10 [2022-12-14 15:25:50,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:50,696 INFO L225 Difference]: With dead ends: 163 [2022-12-14 15:25:50,696 INFO L226 Difference]: Without dead ends: 115 [2022-12-14 15:25:50,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:25:50,702 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 165 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:50,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 119 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:25:50,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-12-14 15:25:50,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 71. [2022-12-14 15:25:50,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 43 states have (on average 1.697674418604651) internal successors, (73), 64 states have internal predecessors, (73), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:25:50,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 81 transitions. [2022-12-14 15:25:50,737 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 81 transitions. Word has length 10 [2022-12-14 15:25:50,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:50,738 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 81 transitions. [2022-12-14 15:25:50,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:25:50,738 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 81 transitions. [2022-12-14 15:25:50,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 15:25:50,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:50,740 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:50,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:25:50,740 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:50,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:50,741 INFO L85 PathProgramCache]: Analyzing trace with hash -762146146, now seen corresponding path program 1 times [2022-12-14 15:25:50,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:50,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161260835] [2022-12-14 15:25:50,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:50,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:25:50,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:50,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161260835] [2022-12-14 15:25:50,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161260835] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:50,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:50,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:25:50,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786087106] [2022-12-14 15:25:50,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:50,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:25:50,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:50,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:25:50,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:25:50,857 INFO L87 Difference]: Start difference. First operand 71 states and 81 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:25:50,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:50,934 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2022-12-14 15:25:50,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:25:50,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 11 [2022-12-14 15:25:50,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:50,936 INFO L225 Difference]: With dead ends: 115 [2022-12-14 15:25:50,937 INFO L226 Difference]: Without dead ends: 113 [2022-12-14 15:25:50,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:25:50,938 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 137 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:50,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 117 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:25:50,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-12-14 15:25:50,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 72. [2022-12-14 15:25:50,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 44 states have (on average 1.6590909090909092) internal successors, (73), 65 states have internal predecessors, (73), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:25:50,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2022-12-14 15:25:50,949 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 11 [2022-12-14 15:25:50,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:50,949 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2022-12-14 15:25:50,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:25:50,949 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2022-12-14 15:25:50,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 15:25:50,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:50,950 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:50,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:25:50,950 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:50,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:50,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2016962880, now seen corresponding path program 1 times [2022-12-14 15:25:50,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:50,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104562017] [2022-12-14 15:25:50,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:50,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:51,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:25:51,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:51,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104562017] [2022-12-14 15:25:51,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104562017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:51,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:51,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:25:51,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398294211] [2022-12-14 15:25:51,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:51,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:25:51,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:51,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:25:51,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:25:51,062 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:25:51,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:51,127 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2022-12-14 15:25:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:25:51,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2022-12-14 15:25:51,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:51,128 INFO L225 Difference]: With dead ends: 113 [2022-12-14 15:25:51,129 INFO L226 Difference]: Without dead ends: 111 [2022-12-14 15:25:51,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:25:51,130 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 142 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:51,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 111 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:25:51,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-12-14 15:25:51,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 73. [2022-12-14 15:25:51,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 66 states have internal predecessors, (73), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:25:51,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2022-12-14 15:25:51,141 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 13 [2022-12-14 15:25:51,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:51,141 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2022-12-14 15:25:51,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:25:51,142 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2022-12-14 15:25:51,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 15:25:51,142 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:51,142 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:51,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:25:51,143 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:51,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:51,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1898660107, now seen corresponding path program 1 times [2022-12-14 15:25:51,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:51,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341964157] [2022-12-14 15:25:51,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:51,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:51,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:25:51,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:51,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341964157] [2022-12-14 15:25:51,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341964157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:51,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:51,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:25:51,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291473582] [2022-12-14 15:25:51,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:51,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:25:51,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:51,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:25:51,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:25:51,223 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:25:51,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:51,282 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2022-12-14 15:25:51,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:25:51,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2022-12-14 15:25:51,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:51,283 INFO L225 Difference]: With dead ends: 111 [2022-12-14 15:25:51,283 INFO L226 Difference]: Without dead ends: 109 [2022-12-14 15:25:51,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:25:51,285 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 126 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:51,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 121 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:25:51,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-12-14 15:25:51,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 74. [2022-12-14 15:25:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 46 states have (on average 1.5869565217391304) internal successors, (73), 67 states have internal predecessors, (73), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:25:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2022-12-14 15:25:51,295 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 14 [2022-12-14 15:25:51,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:51,295 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2022-12-14 15:25:51,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:25:51,295 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2022-12-14 15:25:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 15:25:51,296 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:51,296 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:51,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:25:51,297 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:51,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:51,297 INFO L85 PathProgramCache]: Analyzing trace with hash 754476616, now seen corresponding path program 1 times [2022-12-14 15:25:51,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:51,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590045214] [2022-12-14 15:25:51,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:51,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:25:51,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:51,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590045214] [2022-12-14 15:25:51,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590045214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:51,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:51,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:25:51,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100840853] [2022-12-14 15:25:51,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:51,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:25:51,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:51,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:25:51,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:25:51,324 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:25:51,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:51,344 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2022-12-14 15:25:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:25:51,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-12-14 15:25:51,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:51,346 INFO L225 Difference]: With dead ends: 133 [2022-12-14 15:25:51,346 INFO L226 Difference]: Without dead ends: 75 [2022-12-14 15:25:51,346 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 15:25:51,347 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:51,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:25:51,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-12-14 15:25:51,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-12-14 15:25:51,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 47 states have (on average 1.574468085106383) internal successors, (74), 68 states have internal predecessors, (74), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:25:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2022-12-14 15:25:51,356 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 16 [2022-12-14 15:25:51,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:51,357 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2022-12-14 15:25:51,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:25:51,357 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2022-12-14 15:25:51,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 15:25:51,358 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:51,358 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:51,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:25:51,358 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:51,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:51,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1818273912, now seen corresponding path program 1 times [2022-12-14 15:25:51,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:51,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61565048] [2022-12-14 15:25:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:51,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:51,555 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:25:51,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:51,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61565048] [2022-12-14 15:25:51,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61565048] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:25:51,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451755621] [2022-12-14 15:25:51,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:51,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:25:51,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:25:51,557 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:25:51,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:25:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:51,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:25:51,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:25:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:25:51,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:25:51,761 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:25:51,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451755621] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:25:51,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2139385086] [2022-12-14 15:25:51,781 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-12-14 15:25:51,781 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:25:51,784 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:25:51,789 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:25:51,790 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:25:52,005 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:25:52,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:25:52,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:52,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:25:52,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-12-14 15:25:52,046 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 15:25:52,813 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-12-14 15:25:52,814 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:25:55,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2139385086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:55,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:25:55,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [7, 4, 4] total 22 [2022-12-14 15:25:55,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109402198] [2022-12-14 15:25:55,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:55,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 15:25:55,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:55,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 15:25:55,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-12-14 15:25:55,527 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:25:55,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:55,971 INFO L93 Difference]: Finished difference Result 179 states and 194 transitions. [2022-12-14 15:25:55,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 15:25:55,972 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2022-12-14 15:25:55,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:55,973 INFO L225 Difference]: With dead ends: 179 [2022-12-14 15:25:55,973 INFO L226 Difference]: Without dead ends: 111 [2022-12-14 15:25:55,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-12-14 15:25:55,974 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 302 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:55,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 206 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 15:25:55,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-12-14 15:25:55,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 75. [2022-12-14 15:25:55,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 47 states have (on average 1.553191489361702) internal successors, (73), 68 states have internal predecessors, (73), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:25:55,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2022-12-14 15:25:55,982 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 20 [2022-12-14 15:25:55,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:55,982 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2022-12-14 15:25:55,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:25:55,982 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2022-12-14 15:25:55,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 15:25:55,983 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:55,983 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:55,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:25:56,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:25:56,185 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:56,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:56,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1243281700, now seen corresponding path program 1 times [2022-12-14 15:25:56,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:56,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105266364] [2022-12-14 15:25:56,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:56,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:56,269 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:25:56,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:56,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105266364] [2022-12-14 15:25:56,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105266364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:56,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:56,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:25:56,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974858620] [2022-12-14 15:25:56,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:56,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:25:56,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:56,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:25:56,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:25:56,271 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand has 6 states, 3 states have (on average 5.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:25:56,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:56,344 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2022-12-14 15:25:56,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:25:56,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 3 states have (on average 5.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2022-12-14 15:25:56,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:56,345 INFO L225 Difference]: With dead ends: 75 [2022-12-14 15:25:56,346 INFO L226 Difference]: Without dead ends: 74 [2022-12-14 15:25:56,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:25:56,347 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 98 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:56,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 145 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:25:56,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-12-14 15:25:56,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-12-14 15:25:56,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 67 states have internal predecessors, (72), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:25:56,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2022-12-14 15:25:56,359 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 22 [2022-12-14 15:25:56,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:56,360 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2022-12-14 15:25:56,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 3 states have (on average 5.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:25:56,360 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2022-12-14 15:25:56,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 15:25:56,360 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:56,361 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:56,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 15:25:56,361 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:56,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:56,362 INFO L85 PathProgramCache]: Analyzing trace with hash -112972873, now seen corresponding path program 1 times [2022-12-14 15:25:56,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:56,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705396908] [2022-12-14 15:25:56,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:56,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:56,580 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:25:56,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:56,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705396908] [2022-12-14 15:25:56,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705396908] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:56,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:56,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 15:25:56,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455167327] [2022-12-14 15:25:56,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:56,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:25:56,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:56,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:25:56,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:25:56,582 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand has 10 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:25:56,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:56,785 INFO L93 Difference]: Finished difference Result 109 states and 118 transitions. [2022-12-14 15:25:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:25:56,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-12-14 15:25:56,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:56,786 INFO L225 Difference]: With dead ends: 109 [2022-12-14 15:25:56,787 INFO L226 Difference]: Without dead ends: 106 [2022-12-14 15:25:56,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-12-14 15:25:56,788 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 219 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:56,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 259 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:25:56,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-12-14 15:25:56,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 92. [2022-12-14 15:25:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 63 states have (on average 1.5238095238095237) internal successors, (96), 83 states have internal predecessors, (96), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 15:25:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 108 transitions. [2022-12-14 15:25:56,804 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 108 transitions. Word has length 23 [2022-12-14 15:25:56,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:56,804 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 108 transitions. [2022-12-14 15:25:56,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:25:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 108 transitions. [2022-12-14 15:25:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 15:25:56,805 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:56,805 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:56,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 15:25:56,806 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:56,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:56,806 INFO L85 PathProgramCache]: Analyzing trace with hash 524237534, now seen corresponding path program 1 times [2022-12-14 15:25:56,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:56,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162380284] [2022-12-14 15:25:56,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:56,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:56,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:25:56,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:56,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162380284] [2022-12-14 15:25:56,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162380284] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:56,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:56,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:25:56,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694618774] [2022-12-14 15:25:56,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:56,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:25:56,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:56,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:25:56,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:25:56,853 INFO L87 Difference]: Start difference. First operand 92 states and 108 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:25:56,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:56,902 INFO L93 Difference]: Finished difference Result 106 states and 115 transitions. [2022-12-14 15:25:56,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:25:56,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-12-14 15:25:56,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:56,903 INFO L225 Difference]: With dead ends: 106 [2022-12-14 15:25:56,904 INFO L226 Difference]: Without dead ends: 104 [2022-12-14 15:25:56,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:25:56,904 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 29 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:56,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 161 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:25:56,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-12-14 15:25:56,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 94. [2022-12-14 15:25:56,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 65 states have (on average 1.5076923076923077) internal successors, (98), 85 states have internal predecessors, (98), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 15:25:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 110 transitions. [2022-12-14 15:25:56,920 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 110 transitions. Word has length 22 [2022-12-14 15:25:56,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:56,920 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 110 transitions. [2022-12-14 15:25:56,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:25:56,920 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 110 transitions. [2022-12-14 15:25:56,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 15:25:56,921 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:56,921 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:56,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 15:25:56,921 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:56,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:56,922 INFO L85 PathProgramCache]: Analyzing trace with hash 792808326, now seen corresponding path program 1 times [2022-12-14 15:25:56,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:56,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055267798] [2022-12-14 15:25:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:56,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:57,103 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:25:57,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:57,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055267798] [2022-12-14 15:25:57,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055267798] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:57,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:57,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 15:25:57,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899902644] [2022-12-14 15:25:57,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:57,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:25:57,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:57,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:25:57,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:25:57,105 INFO L87 Difference]: Start difference. First operand 94 states and 110 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:25:57,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:57,383 INFO L93 Difference]: Finished difference Result 184 states and 215 transitions. [2022-12-14 15:25:57,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 15:25:57,383 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-12-14 15:25:57,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:57,384 INFO L225 Difference]: With dead ends: 184 [2022-12-14 15:25:57,384 INFO L226 Difference]: Without dead ends: 183 [2022-12-14 15:25:57,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-12-14 15:25:57,386 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 258 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:57,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 314 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:25:57,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-12-14 15:25:57,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 107. [2022-12-14 15:25:57,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 96 states have internal predecessors, (111), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 15:25:57,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 127 transitions. [2022-12-14 15:25:57,409 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 127 transitions. Word has length 24 [2022-12-14 15:25:57,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:57,409 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 127 transitions. [2022-12-14 15:25:57,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:25:57,410 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 127 transitions. [2022-12-14 15:25:57,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 15:25:57,410 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:57,410 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:57,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 15:25:57,411 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:57,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:57,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1192745575, now seen corresponding path program 1 times [2022-12-14 15:25:57,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:57,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296075581] [2022-12-14 15:25:57,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:57,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:57,524 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:25:57,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:57,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296075581] [2022-12-14 15:25:57,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296075581] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:57,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:57,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 15:25:57,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180087421] [2022-12-14 15:25:57,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:57,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:25:57,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:57,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:25:57,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:25:57,526 INFO L87 Difference]: Start difference. First operand 107 states and 127 transitions. Second operand has 8 states, 5 states have (on average 3.6) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:25:57,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:57,660 INFO L93 Difference]: Finished difference Result 124 states and 138 transitions. [2022-12-14 15:25:57,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 15:25:57,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 3.6) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2022-12-14 15:25:57,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:57,661 INFO L225 Difference]: With dead ends: 124 [2022-12-14 15:25:57,661 INFO L226 Difference]: Without dead ends: 119 [2022-12-14 15:25:57,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-14 15:25:57,662 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 157 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:57,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 169 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:25:57,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-12-14 15:25:57,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 111. [2022-12-14 15:25:57,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 80 states have (on average 1.4375) internal successors, (115), 100 states have internal predecessors, (115), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 15:25:57,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2022-12-14 15:25:57,680 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 25 [2022-12-14 15:25:57,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:57,680 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2022-12-14 15:25:57,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 3.6) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:25:57,680 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2022-12-14 15:25:57,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 15:25:57,680 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:57,680 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:57,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 15:25:57,681 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:57,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:57,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1281099066, now seen corresponding path program 1 times [2022-12-14 15:25:57,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:57,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534769995] [2022-12-14 15:25:57,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:57,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:25:57,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:57,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534769995] [2022-12-14 15:25:57,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534769995] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:25:57,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242678748] [2022-12-14 15:25:57,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:57,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:25:57,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:25:57,736 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:25:57,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:25:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:57,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 15:25:57,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:25:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:25:57,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:25:57,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242678748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:57,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:25:57,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-12-14 15:25:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979530592] [2022-12-14 15:25:57,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:57,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:25:57,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:57,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:25:57,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:25:57,848 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:25:57,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:57,943 INFO L93 Difference]: Finished difference Result 117 states and 132 transitions. [2022-12-14 15:25:57,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:25:57,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-12-14 15:25:57,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:57,944 INFO L225 Difference]: With dead ends: 117 [2022-12-14 15:25:57,944 INFO L226 Difference]: Without dead ends: 114 [2022-12-14 15:25:57,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:25:57,944 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 146 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:57,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 132 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:25:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-12-14 15:25:57,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 108. [2022-12-14 15:25:57,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 80 states have (on average 1.4) internal successors, (112), 97 states have internal predecessors, (112), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 15:25:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 128 transitions. [2022-12-14 15:25:57,958 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 128 transitions. Word has length 24 [2022-12-14 15:25:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:57,958 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 128 transitions. [2022-12-14 15:25:57,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:25:57,958 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 128 transitions. [2022-12-14 15:25:57,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 15:25:57,958 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:57,959 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:57,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:25:58,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 15:25:58,159 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:25:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:58,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1059365428, now seen corresponding path program 1 times [2022-12-14 15:25:58,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:58,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456551828] [2022-12-14 15:25:58,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:58,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:58,250 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:25:58,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:58,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456551828] [2022-12-14 15:25:58,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456551828] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:25:58,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737020240] [2022-12-14 15:25:58,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:58,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:25:58,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:25:58,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:25:58,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:25:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:58,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 15:25:58,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:25:58,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:25:58,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:25:58,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:25:58,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737020240] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:25:58,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [881875077] [2022-12-14 15:25:58,408 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 15:25:58,408 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:25:58,408 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:25:58,408 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:25:58,409 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:25:58,485 INFO L321 Elim1Store]: treesize reduction 22, result has 46.3 percent of original size [2022-12-14 15:25:58,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 65 [2022-12-14 15:25:58,537 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:25:58,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:25:58,555 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 15:25:59,224 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 128 for LOIs [2022-12-14 15:25:59,262 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:26:01,484 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3429#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483648)) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~y#1|)) (<= |ULTIMATE.start_lcp_#in~a#1.offset| 0) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934592)) (<= 0 (+ |ULTIMATE.start_lcp_#in~x#1| 2147483648)) (<= |ULTIMATE.start_lcp_~x#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_lcp_~y#1| 2147483647) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (<= 0 (+ |ULTIMATE.start_lcp_#in~n#1| 2147483648)) (<= 0 |ULTIMATE.start_lcp_#in~a#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (= |ULTIMATE.start_main_#t~malloc17#1.offset| 0) (<= |ULTIMATE.start_lcp_~l~0#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~n#1|)) (<= 0 (+ |ULTIMATE.start_lcp_#in~y#1| 2147483648)) (<= |ULTIMATE.start_lcp_#in~y#1| 2147483647) (<= |ULTIMATE.start_lcp_~a#1.offset| 0) (<= |ULTIMATE.start_lcp_~n#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_lcp_~a#1.offset|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_lcp_#in~x#1| 2147483647) (not (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_~x#1|) 2147483647)) (<= |ULTIMATE.start_lcp_#in~n#1| 2147483647) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))' at error location [2022-12-14 15:26:01,485 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:26:01,485 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:26:01,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-12-14 15:26:01,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451736101] [2022-12-14 15:26:01,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:26:01,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 15:26:01,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:01,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 15:26:01,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2022-12-14 15:26:01,486 INFO L87 Difference]: Start difference. First operand 108 states and 128 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:26:01,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:01,716 INFO L93 Difference]: Finished difference Result 160 states and 181 transitions. [2022-12-14 15:26:01,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 15:26:01,717 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-12-14 15:26:01,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:01,717 INFO L225 Difference]: With dead ends: 160 [2022-12-14 15:26:01,718 INFO L226 Difference]: Without dead ends: 158 [2022-12-14 15:26:01,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 46 SyntacticMatches, 10 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=209, Invalid=981, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 15:26:01,718 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 404 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:01,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 234 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:26:01,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-12-14 15:26:01,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 116. [2022-12-14 15:26:01,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 105 states have internal predecessors, (124), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 15:26:01,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 140 transitions. [2022-12-14 15:26:01,732 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 140 transitions. Word has length 25 [2022-12-14 15:26:01,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:01,733 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 140 transitions. [2022-12-14 15:26:01,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:26:01,733 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 140 transitions. [2022-12-14 15:26:01,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 15:26:01,733 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:01,733 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:01,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:26:01,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 15:26:01,935 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:01,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:01,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1994796288, now seen corresponding path program 1 times [2022-12-14 15:26:01,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:01,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545108493] [2022-12-14 15:26:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:01,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:02,065 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:26:02,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:02,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545108493] [2022-12-14 15:26:02,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545108493] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:26:02,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:26:02,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 15:26:02,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105354331] [2022-12-14 15:26:02,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:26:02,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:26:02,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:02,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:26:02,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:26:02,067 INFO L87 Difference]: Start difference. First operand 116 states and 140 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:26:02,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:02,197 INFO L93 Difference]: Finished difference Result 142 states and 160 transitions. [2022-12-14 15:26:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:26:02,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 28 [2022-12-14 15:26:02,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:02,198 INFO L225 Difference]: With dead ends: 142 [2022-12-14 15:26:02,198 INFO L226 Difference]: Without dead ends: 116 [2022-12-14 15:26:02,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:26:02,199 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 117 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:02,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 163 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:26:02,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-12-14 15:26:02,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 111. [2022-12-14 15:26:02,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 85 states have (on average 1.388235294117647) internal successors, (118), 101 states have internal predecessors, (118), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 15:26:02,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 132 transitions. [2022-12-14 15:26:02,218 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 132 transitions. Word has length 28 [2022-12-14 15:26:02,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:02,219 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 132 transitions. [2022-12-14 15:26:02,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:26:02,219 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 132 transitions. [2022-12-14 15:26:02,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 15:26:02,219 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:02,219 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:02,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 15:26:02,220 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:02,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:02,220 INFO L85 PathProgramCache]: Analyzing trace with hash 142928726, now seen corresponding path program 1 times [2022-12-14 15:26:02,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:02,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164196600] [2022-12-14 15:26:02,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:02,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:02,294 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:26:02,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:02,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164196600] [2022-12-14 15:26:02,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164196600] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:26:02,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320635281] [2022-12-14 15:26:02,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:02,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:02,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:26:02,296 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:26:02,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:26:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:02,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 15:26:02,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:26:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:26:02,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:26:02,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320635281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:26:02,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:26:02,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-12-14 15:26:02,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659958746] [2022-12-14 15:26:02,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:26:02,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:26:02,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:02,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:26:02,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:26:02,412 INFO L87 Difference]: Start difference. First operand 111 states and 132 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:26:02,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:02,523 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2022-12-14 15:26:02,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:26:02,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-12-14 15:26:02,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:02,524 INFO L225 Difference]: With dead ends: 116 [2022-12-14 15:26:02,524 INFO L226 Difference]: Without dead ends: 114 [2022-12-14 15:26:02,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:26:02,525 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 166 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:02,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 125 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:26:02,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-12-14 15:26:02,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2022-12-14 15:26:02,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 99 states have internal predecessors, (115), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 15:26:02,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 129 transitions. [2022-12-14 15:26:02,544 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 129 transitions. Word has length 27 [2022-12-14 15:26:02,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:02,544 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 129 transitions. [2022-12-14 15:26:02,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:26:02,544 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 129 transitions. [2022-12-14 15:26:02,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 15:26:02,545 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:02,545 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:02,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 15:26:02,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:02,746 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:02,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:02,746 INFO L85 PathProgramCache]: Analyzing trace with hash -918206986, now seen corresponding path program 1 times [2022-12-14 15:26:02,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:02,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582272096] [2022-12-14 15:26:02,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:02,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:02,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:26:02,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:02,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582272096] [2022-12-14 15:26:02,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582272096] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:26:02,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:26:02,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:26:02,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961297486] [2022-12-14 15:26:02,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:26:02,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:26:02,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:02,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:26:02,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:26:02,832 INFO L87 Difference]: Start difference. First operand 109 states and 129 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 15:26:02,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:02,918 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2022-12-14 15:26:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:26:02,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2022-12-14 15:26:02,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:02,919 INFO L225 Difference]: With dead ends: 113 [2022-12-14 15:26:02,919 INFO L226 Difference]: Without dead ends: 111 [2022-12-14 15:26:02,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:26:02,920 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 87 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:02,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 95 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:26:02,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-12-14 15:26:02,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 108. [2022-12-14 15:26:02,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 85 states have (on average 1.3058823529411765) internal successors, (111), 98 states have internal predecessors, (111), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 15:26:02,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 125 transitions. [2022-12-14 15:26:02,939 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 125 transitions. Word has length 30 [2022-12-14 15:26:02,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:02,939 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 125 transitions. [2022-12-14 15:26:02,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 15:26:02,939 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 125 transitions. [2022-12-14 15:26:02,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 15:26:02,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:02,940 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:02,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 15:26:02,940 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:02,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:02,941 INFO L85 PathProgramCache]: Analyzing trace with hash 135823263, now seen corresponding path program 1 times [2022-12-14 15:26:02,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:02,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413163022] [2022-12-14 15:26:02,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:02,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:03,041 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:26:03,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:03,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413163022] [2022-12-14 15:26:03,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413163022] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:26:03,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034574366] [2022-12-14 15:26:03,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:03,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:03,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:26:03,043 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:26:03,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:26:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:03,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:26:03,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:26:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:26:03,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:26:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:26:03,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034574366] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:26:03,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1464486831] [2022-12-14 15:26:03,213 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 15:26:03,213 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:26:03,214 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:26:03,214 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:26:03,214 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:26:03,280 INFO L321 Elim1Store]: treesize reduction 22, result has 46.3 percent of original size [2022-12-14 15:26:03,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 65 [2022-12-14 15:26:03,329 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:26:03,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:26:03,344 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 15:26:03,944 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 128 for LOIs [2022-12-14 15:26:03,979 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:26:06,314 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4862#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483648)) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= |ULTIMATE.start_lcp_#in~a#1.offset| 0) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934592)) (<= 0 (+ |ULTIMATE.start_lcp_#in~x#1| 2147483648)) (not (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_~y#1|) 2147483647)) (<= |ULTIMATE.start_lcp_~x#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_lcp_~y#1| 2147483647) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (<= 0 (+ |ULTIMATE.start_lcp_#in~n#1| 2147483648)) (<= 0 |ULTIMATE.start_lcp_#in~a#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (= |ULTIMATE.start_main_#t~malloc17#1.offset| 0) (<= |ULTIMATE.start_lcp_~l~0#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~n#1|)) (<= 0 (+ |ULTIMATE.start_lcp_#in~y#1| 2147483648)) (<= |ULTIMATE.start_lcp_#in~y#1| 2147483647) (<= |ULTIMATE.start_lcp_~a#1.offset| 0) (<= |ULTIMATE.start_lcp_~n#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_lcp_~a#1.offset|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_lcp_#in~x#1| 2147483647) (<= |ULTIMATE.start_lcp_#in~n#1| 2147483647) (<= 0 |#StackHeapBarrier|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~x#1|)) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))' at error location [2022-12-14 15:26:06,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:26:06,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:26:06,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2022-12-14 15:26:06,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173846957] [2022-12-14 15:26:06,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:26:06,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 15:26:06,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:06,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 15:26:06,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2022-12-14 15:26:06,316 INFO L87 Difference]: Start difference. First operand 108 states and 125 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:26:06,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:06,630 INFO L93 Difference]: Finished difference Result 143 states and 161 transitions. [2022-12-14 15:26:06,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 15:26:06,631 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-12-14 15:26:06,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:06,631 INFO L225 Difference]: With dead ends: 143 [2022-12-14 15:26:06,631 INFO L226 Difference]: Without dead ends: 141 [2022-12-14 15:26:06,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 53 SyntacticMatches, 11 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=247, Invalid=1235, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 15:26:06,632 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 323 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:06,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 463 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:26:06,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-14 15:26:06,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 106. [2022-12-14 15:26:06,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 96 states have internal predecessors, (108), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 15:26:06,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2022-12-14 15:26:06,647 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 28 [2022-12-14 15:26:06,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:06,647 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2022-12-14 15:26:06,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:26:06,647 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2022-12-14 15:26:06,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 15:26:06,648 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:06,648 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:06,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 15:26:06,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 15:26:06,850 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:06,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:06,851 INFO L85 PathProgramCache]: Analyzing trace with hash 342488689, now seen corresponding path program 1 times [2022-12-14 15:26:06,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:06,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502101972] [2022-12-14 15:26:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:06,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:07,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:26:07,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:07,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502101972] [2022-12-14 15:26:07,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502101972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:26:07,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:26:07,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 15:26:07,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085203736] [2022-12-14 15:26:07,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:26:07,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:26:07,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:07,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:26:07,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:26:07,031 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 15:26:07,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:07,234 INFO L93 Difference]: Finished difference Result 109 states and 123 transitions. [2022-12-14 15:26:07,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 15:26:07,234 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2022-12-14 15:26:07,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:07,235 INFO L225 Difference]: With dead ends: 109 [2022-12-14 15:26:07,235 INFO L226 Difference]: Without dead ends: 89 [2022-12-14 15:26:07,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-12-14 15:26:07,236 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 230 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:07,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 211 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:26:07,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-12-14 15:26:07,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-12-14 15:26:07,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 81 states have internal predecessors, (90), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:26:07,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 100 transitions. [2022-12-14 15:26:07,251 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 100 transitions. Word has length 33 [2022-12-14 15:26:07,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:07,251 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 100 transitions. [2022-12-14 15:26:07,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-14 15:26:07,251 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 100 transitions. [2022-12-14 15:26:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 15:26:07,252 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:07,252 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:07,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 15:26:07,252 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:07,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:07,252 INFO L85 PathProgramCache]: Analyzing trace with hash -489183767, now seen corresponding path program 1 times [2022-12-14 15:26:07,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:07,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836225471] [2022-12-14 15:26:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:07,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:07,506 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:26:07,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:07,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836225471] [2022-12-14 15:26:07,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836225471] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:26:07,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119258043] [2022-12-14 15:26:07,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:07,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:07,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:26:07,508 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:26:07,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 15:26:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:07,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-14 15:26:07,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:26:07,683 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:26:07,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:26:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:26:07,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119258043] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:26:07,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1642965561] [2022-12-14 15:26:07,886 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-12-14 15:26:07,886 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:26:07,886 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:26:07,887 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:26:07,887 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:26:07,968 INFO L321 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-12-14 15:26:07,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 46 [2022-12-14 15:26:07,998 INFO L321 Elim1Store]: treesize reduction 22, result has 46.3 percent of original size [2022-12-14 15:26:07,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 65 [2022-12-14 15:26:08,049 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:26:08,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:26:09,031 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 78 for LOIs [2022-12-14 15:26:09,042 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:26:12,768 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5665#(and (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483648)) (= |ULTIMATE.start_check_#in~y#1| |ULTIMATE.start_check_~y#1|) (= |ULTIMATE.start_check_#in~n#1| |ULTIMATE.start_check_~n#1|) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (= |ULTIMATE.start_check_#in~a#1.base| |ULTIMATE.start_main_~a~0#1.base|) (<= |ULTIMATE.start_main_#t~malloc17#1.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~y#1|)) (<= |ULTIMATE.start_lcp_#in~a#1.offset| 0) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934592)) (<= 0 (+ |ULTIMATE.start_lcp_#in~x#1| 2147483648)) (<= |ULTIMATE.start_lcp_~x#1| 2147483647) (<= |ULTIMATE.start_lcp_~y#1| 2147483647) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (not (= (ite (and (< |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~l#1|) (<= 0 |ULTIMATE.start_check_~i~0#1|)) 1 0) 0)) (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_check_#in~x#1|) (<= 0 (+ |ULTIMATE.start_lcp_#in~n#1| 2147483648)) (<= 0 |ULTIMATE.start_lcp_#in~a#1.offset|) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_check_#in~y#1|) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_check_#in~a#1.offset|) (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_check_#in~n#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~n#1|)) (= |ULTIMATE.start_main_~l~1#1| |ULTIMATE.start_check_#in~l#1|) (<= 0 (+ |ULTIMATE.start_lcp_#in~y#1| 2147483648)) (<= |ULTIMATE.start_lcp_#in~y#1| 2147483647) (<= |ULTIMATE.start_lcp_~a#1.offset| 0) (<= |ULTIMATE.start_check_~a#1.offset| 0) (<= |ULTIMATE.start_lcp_~n#1| 2147483647) (<= 0 |ULTIMATE.start_main_#t~malloc17#1.offset|) (= |ULTIMATE.start_main_~l~1#1| |ULTIMATE.start_lcp_#res#1|) (<= |ULTIMATE.start_check_#in~n#1| 2147483647) (<= 0 |ULTIMATE.start_lcp_~a#1.offset|) (= |ULTIMATE.start_check_#in~x#1| |ULTIMATE.start_check_~x#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= |ULTIMATE.start_check_~a#1.base| |ULTIMATE.start_check_#in~a#1.base|) (<= 0 |ULTIMATE.start_check_~a#1.offset|) (<= |ULTIMATE.start_check_#in~x#1| 2147483647) (<= |ULTIMATE.start_lcp_#in~x#1| 2147483647) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~l~1#1| 2147483647) (= |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_#res#1|) (<= |ULTIMATE.start_lcp_#in~n#1| 2147483647) (<= 0 (+ 2147483648 |ULTIMATE.start_check_~y#1|)) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_check_#in~l#1| |ULTIMATE.start_check_~l#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~x#1|)) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_check_#in~a#1.offset|) (< 2147483647 (+ |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~x#1|)) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))' at error location [2022-12-14 15:26:12,768 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:26:12,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:26:12,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 27 [2022-12-14 15:26:12,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131835954] [2022-12-14 15:26:12,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:26:12,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-14 15:26:12,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:12,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-14 15:26:12,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=1754, Unknown=0, NotChecked=0, Total=1980 [2022-12-14 15:26:12,770 INFO L87 Difference]: Start difference. First operand 89 states and 100 transitions. Second operand has 28 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 28 states have internal predecessors, (80), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) [2022-12-14 15:26:13,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:13,506 INFO L93 Difference]: Finished difference Result 182 states and 212 transitions. [2022-12-14 15:26:13,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-14 15:26:13,507 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 28 states have internal predecessors, (80), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) Word has length 35 [2022-12-14 15:26:13,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:13,508 INFO L225 Difference]: With dead ends: 182 [2022-12-14 15:26:13,508 INFO L226 Difference]: Without dead ends: 179 [2022-12-14 15:26:13,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 65 SyntacticMatches, 7 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1263 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=620, Invalid=3540, Unknown=0, NotChecked=0, Total=4160 [2022-12-14 15:26:13,509 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 625 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:13,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 251 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:26:13,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-12-14 15:26:13,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 86. [2022-12-14 15:26:13,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.2142857142857142) internal successors, (85), 78 states have internal predecessors, (85), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:26:13,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2022-12-14 15:26:13,519 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 35 [2022-12-14 15:26:13,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:13,519 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2022-12-14 15:26:13,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 28 states have internal predecessors, (80), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 6 states have call predecessors, (9), 7 states have call successors, (9) [2022-12-14 15:26:13,520 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2022-12-14 15:26:13,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 15:26:13,520 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:13,520 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:13,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 15:26:13,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:13,722 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:13,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:13,723 INFO L85 PathProgramCache]: Analyzing trace with hash 2015172500, now seen corresponding path program 1 times [2022-12-14 15:26:13,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:13,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010256100] [2022-12-14 15:26:13,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:13,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:13,825 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 15:26:13,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:13,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010256100] [2022-12-14 15:26:13,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010256100] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:26:13,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767750610] [2022-12-14 15:26:13,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:13,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:13,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:26:13,826 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:26:13,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 15:26:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:13,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:26:13,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:26:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 15:26:13,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:26:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 15:26:13,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767750610] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:26:13,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1506528349] [2022-12-14 15:26:13,956 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-12-14 15:26:13,956 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:26:13,956 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:26:13,957 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:26:13,957 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:26:14,027 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:26:14,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:26:14,036 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 15:26:14,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:14,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:14,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-12-14 15:26:15,076 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 78 for LOIs [2022-12-14 15:26:15,090 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:26:18,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1506528349] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:26:18,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:26:18,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [5, 4, 4] total 24 [2022-12-14 15:26:18,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506022775] [2022-12-14 15:26:18,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:26:18,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 15:26:18,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:18,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 15:26:18,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2022-12-14 15:26:18,555 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand has 19 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 15 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:26:23,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:23,939 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2022-12-14 15:26:23,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 15:26:23,940 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 15 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 36 [2022-12-14 15:26:23,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:23,941 INFO L225 Difference]: With dead ends: 86 [2022-12-14 15:26:23,941 INFO L226 Difference]: Without dead ends: 78 [2022-12-14 15:26:23,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 79 SyntacticMatches, 9 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 15:26:23,942 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 187 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:23,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 43 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 15:26:23,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-14 15:26:23,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2022-12-14 15:26:23,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 65 states have internal predecessors, (71), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:26:23,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2022-12-14 15:26:23,952 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 36 [2022-12-14 15:26:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:23,952 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2022-12-14 15:26:23,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 15 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:26:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2022-12-14 15:26:23,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 15:26:23,953 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:23,953 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:23,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 15:26:24,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:24,155 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:24,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:24,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1304716444, now seen corresponding path program 1 times [2022-12-14 15:26:24,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:24,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168712058] [2022-12-14 15:26:24,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:24,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:24,206 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 15:26:24,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:24,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168712058] [2022-12-14 15:26:24,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168712058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:26:24,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:26:24,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:26:24,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032266728] [2022-12-14 15:26:24,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:26:24,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:26:24,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:24,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:26:24,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:26:24,207 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:26:24,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:24,244 INFO L93 Difference]: Finished difference Result 116 states and 126 transitions. [2022-12-14 15:26:24,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:26:24,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-12-14 15:26:24,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:24,245 INFO L225 Difference]: With dead ends: 116 [2022-12-14 15:26:24,247 INFO L226 Difference]: Without dead ends: 63 [2022-12-14 15:26:24,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:26:24,247 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 3 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:24,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 115 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:26:24,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-12-14 15:26:24,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2022-12-14 15:26:24,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 55 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:26:24,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2022-12-14 15:26:24,256 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 35 [2022-12-14 15:26:24,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:24,256 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2022-12-14 15:26:24,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:26:24,256 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2022-12-14 15:26:24,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 15:26:24,256 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:24,256 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:24,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 15:26:24,257 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:24,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:24,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1954161845, now seen corresponding path program 1 times [2022-12-14 15:26:24,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:24,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133439811] [2022-12-14 15:26:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:24,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:26:24,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:24,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133439811] [2022-12-14 15:26:24,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133439811] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:26:24,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395100957] [2022-12-14 15:26:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:24,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:24,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:26:24,443 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:26:24,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 15:26:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:24,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 15:26:24,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:26:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:26:24,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:26:24,779 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:26:24,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395100957] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:26:24,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [523558102] [2022-12-14 15:26:24,782 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-12-14 15:26:24,782 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:26:24,782 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:26:24,782 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:26:24,782 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:26:24,853 INFO L321 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-12-14 15:26:24,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 46 [2022-12-14 15:26:24,878 INFO L321 Elim1Store]: treesize reduction 22, result has 46.3 percent of original size [2022-12-14 15:26:24,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 65 [2022-12-14 15:26:24,919 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:26:24,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:26:25,972 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 78 for LOIs [2022-12-14 15:26:25,992 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:26:30,626 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6916#(and (< 2147483647 (+ |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~y#1|)) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483648)) (= |ULTIMATE.start_check_#in~y#1| |ULTIMATE.start_check_~y#1|) (= |ULTIMATE.start_check_#in~n#1| |ULTIMATE.start_check_~n#1|) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (= |ULTIMATE.start_check_#in~a#1.base| |ULTIMATE.start_main_~a~0#1.base|) (<= |ULTIMATE.start_main_#t~malloc17#1.offset| 0) (= |ULTIMATE.start_check_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_check_~a#1.base|) (+ |ULTIMATE.start_check_~a#1.offset| (* 4 |ULTIMATE.start_check_~x#1|) (* |ULTIMATE.start_check_~i~0#1| 4)))) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~y#1|)) (<= |ULTIMATE.start_lcp_#in~a#1.offset| 0) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934592)) (<= 0 (+ |ULTIMATE.start_lcp_#in~x#1| 2147483648)) (<= |ULTIMATE.start_lcp_~x#1| 2147483647) (<= |ULTIMATE.start_lcp_~y#1| 2147483647) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (not (= (ite (and (< |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~l#1|) (<= 0 |ULTIMATE.start_check_~i~0#1|)) 1 0) 0)) (<= |#NULL.offset| 0) (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_check_#in~x#1|) (<= 0 (+ |ULTIMATE.start_lcp_#in~n#1| 2147483648)) (<= 0 |ULTIMATE.start_lcp_#in~a#1.offset|) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_check_#in~y#1|) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_check_#in~a#1.offset|) (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_check_#in~n#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~n#1|)) (= |ULTIMATE.start_main_~l~1#1| |ULTIMATE.start_check_#in~l#1|) (<= 0 (+ |ULTIMATE.start_lcp_#in~y#1| 2147483648)) (<= |ULTIMATE.start_lcp_#in~y#1| 2147483647) (<= (+ |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~x#1|) 2147483647) (<= |ULTIMATE.start_lcp_~a#1.offset| 0) (<= |ULTIMATE.start_check_~a#1.offset| 0) (<= |ULTIMATE.start_lcp_~n#1| 2147483647) (<= 0 |ULTIMATE.start_main_#t~malloc17#1.offset|) (= |ULTIMATE.start_main_~l~1#1| |ULTIMATE.start_lcp_#res#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_check_~x#1|)) (<= |ULTIMATE.start_check_#in~n#1| 2147483647) (<= 0 |ULTIMATE.start_lcp_~a#1.offset|) (= |ULTIMATE.start_check_#in~x#1| |ULTIMATE.start_check_~x#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= |ULTIMATE.start_check_~a#1.base| |ULTIMATE.start_check_#in~a#1.base|) (<= 0 |ULTIMATE.start_check_~a#1.offset|) (<= |ULTIMATE.start_lcp_#in~x#1| 2147483647) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~l~1#1| 2147483647) (= |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_#res#1|) (<= |ULTIMATE.start_lcp_#in~n#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_check_#in~l#1| |ULTIMATE.start_check_~l#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~x#1|)) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_check_#in~a#1.offset|) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))' at error location [2022-12-14 15:26:30,626 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:26:30,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:26:30,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2022-12-14 15:26:30,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980874765] [2022-12-14 15:26:30,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:26:30,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 15:26:30,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:30,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 15:26:30,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1613, Unknown=0, NotChecked=0, Total=1806 [2022-12-14 15:26:30,627 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 25 states, 24 states have (on average 2.625) internal successors, (63), 25 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:26:31,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:31,278 INFO L93 Difference]: Finished difference Result 105 states and 111 transitions. [2022-12-14 15:26:31,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 15:26:31,279 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.625) internal successors, (63), 25 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2022-12-14 15:26:31,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:31,280 INFO L225 Difference]: With dead ends: 105 [2022-12-14 15:26:31,280 INFO L226 Difference]: Without dead ends: 104 [2022-12-14 15:26:31,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 70 SyntacticMatches, 10 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1099 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=465, Invalid=3195, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 15:26:31,281 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 452 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:31,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 359 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:26:31,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-12-14 15:26:31,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 69. [2022-12-14 15:26:31,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 58 states have (on average 1.103448275862069) internal successors, (64), 61 states have internal predecessors, (64), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:26:31,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2022-12-14 15:26:31,293 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 37 [2022-12-14 15:26:31,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:31,293 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2022-12-14 15:26:31,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.625) internal successors, (63), 25 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:26:31,293 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2022-12-14 15:26:31,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 15:26:31,294 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:31,294 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:31,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-14 15:26:31,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:31,495 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:31,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:31,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1482784712, now seen corresponding path program 1 times [2022-12-14 15:26:31,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:31,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342090751] [2022-12-14 15:26:31,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:31,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:31,565 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:26:31,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:31,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342090751] [2022-12-14 15:26:31,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342090751] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:26:31,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408547556] [2022-12-14 15:26:31,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:31,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:31,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:26:31,567 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:26:31,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 15:26:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:31,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:26:31,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:26:31,652 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:26:31,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:26:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:26:31,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408547556] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:26:31,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1279844840] [2022-12-14 15:26:31,699 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 15:26:31,699 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:26:31,700 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:26:31,700 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:26:31,700 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:26:31,781 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:26:31,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:26:31,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:31,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:31,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-12-14 15:26:31,807 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 15:26:32,680 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 128 for LOIs [2022-12-14 15:26:32,707 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:26:35,566 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7398#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483648)) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (< 2147483646 |ULTIMATE.start_lcp_#t~post9#1|) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~y#1|)) (<= |ULTIMATE.start_lcp_#in~a#1.offset| 0) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934592)) (<= 0 (+ |ULTIMATE.start_lcp_#in~x#1| 2147483648)) (<= |ULTIMATE.start_lcp_~x#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_lcp_~y#1| 2147483647) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (= |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_#t~post9#1|) (<= 0 (+ |ULTIMATE.start_lcp_#in~n#1| 2147483648)) (<= 0 |ULTIMATE.start_lcp_#in~a#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (= |ULTIMATE.start_main_#t~malloc17#1.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~n#1|)) (<= 0 (+ |ULTIMATE.start_lcp_#in~y#1| 2147483648)) (<= |ULTIMATE.start_lcp_#in~y#1| 2147483647) (<= |ULTIMATE.start_lcp_~a#1.offset| 0) (<= |ULTIMATE.start_lcp_~n#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_lcp_~a#1.offset|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_lcp_#in~x#1| 2147483647) (<= |ULTIMATE.start_lcp_#in~n#1| 2147483647) (<= 0 |#StackHeapBarrier|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~x#1|)) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))' at error location [2022-12-14 15:26:35,566 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:26:35,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:26:35,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-14 15:26:35,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727084698] [2022-12-14 15:26:35,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:26:35,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 15:26:35,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:35,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 15:26:35,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2022-12-14 15:26:35,567 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 12 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:26:35,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:35,774 INFO L93 Difference]: Finished difference Result 205 states and 227 transitions. [2022-12-14 15:26:35,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:26:35,774 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 12 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-12-14 15:26:35,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:35,775 INFO L225 Difference]: With dead ends: 205 [2022-12-14 15:26:35,776 INFO L226 Difference]: Without dead ends: 204 [2022-12-14 15:26:35,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 82 SyntacticMatches, 8 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=125, Invalid=745, Unknown=0, NotChecked=0, Total=870 [2022-12-14 15:26:35,777 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 96 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:35,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 252 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:26:35,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-12-14 15:26:35,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 111. [2022-12-14 15:26:35,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 100 states have (on average 1.15) internal successors, (115), 103 states have internal predecessors, (115), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:26:35,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 125 transitions. [2022-12-14 15:26:35,793 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 125 transitions. Word has length 37 [2022-12-14 15:26:35,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:35,794 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 125 transitions. [2022-12-14 15:26:35,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 12 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:26:35,794 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 125 transitions. [2022-12-14 15:26:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 15:26:35,794 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:35,794 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:35,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 15:26:35,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-14 15:26:35,996 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:35,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:35,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1069823663, now seen corresponding path program 1 times [2022-12-14 15:26:35,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:35,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021517706] [2022-12-14 15:26:35,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:35,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:36,270 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:26:36,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:36,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021517706] [2022-12-14 15:26:36,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021517706] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:26:36,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643692329] [2022-12-14 15:26:36,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:36,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:36,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:26:36,272 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:26:36,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 15:26:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:36,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 15:26:36,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:26:36,443 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:26:36,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:26:36,671 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:26:36,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643692329] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:26:36,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [854313819] [2022-12-14 15:26:36,673 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-12-14 15:26:36,673 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:26:36,673 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:26:36,674 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:26:36,674 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:26:36,765 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:26:36,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:26:36,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:36,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:36,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-12-14 15:26:36,792 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 15:26:38,118 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-12-14 15:26:38,119 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:26:46,948 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8036#(and (< 2147483647 (+ |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~y#1|)) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483648)) (= |ULTIMATE.start_check_#in~y#1| |ULTIMATE.start_check_~y#1|) (= |ULTIMATE.start_check_#in~n#1| |ULTIMATE.start_check_~n#1|) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (= |ULTIMATE.start_check_#in~a#1.base| |ULTIMATE.start_main_~a~0#1.base|) (= |ULTIMATE.start_check_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_check_~a#1.base|) (+ |ULTIMATE.start_check_~a#1.offset| (* 4 |ULTIMATE.start_check_~x#1|) (* |ULTIMATE.start_check_~i~0#1| 4)))) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~y#1|)) (<= |ULTIMATE.start_lcp_#in~a#1.offset| 0) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934592)) (<= 0 (+ |ULTIMATE.start_lcp_#in~x#1| 2147483648)) (<= |ULTIMATE.start_lcp_~x#1| 2147483647) (<= |ULTIMATE.start_lcp_~y#1| 2147483647) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (not (= (ite (and (< |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~l#1|) (<= 0 |ULTIMATE.start_check_~i~0#1|)) 1 0) 0)) (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_check_#in~x#1|) (<= 0 (+ |ULTIMATE.start_lcp_#in~n#1| 2147483648)) (<= 0 |ULTIMATE.start_lcp_#in~a#1.offset|) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_check_#in~y#1|) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_check_#in~a#1.offset|) (= |ULTIMATE.start_main_#t~malloc17#1.offset| 0) (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_check_#in~n#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~n#1|)) (= |ULTIMATE.start_main_~l~1#1| |ULTIMATE.start_check_#in~l#1|) (<= 0 (+ |ULTIMATE.start_lcp_#in~y#1| 2147483648)) (<= |ULTIMATE.start_lcp_#in~y#1| 2147483647) (<= (+ |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~x#1|) 2147483647) (<= |ULTIMATE.start_lcp_~a#1.offset| 0) (<= |ULTIMATE.start_check_~a#1.offset| 0) (<= |ULTIMATE.start_lcp_~n#1| 2147483647) (= |ULTIMATE.start_main_~l~1#1| |ULTIMATE.start_lcp_#res#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_check_~x#1|)) (= |#NULL.offset| 0) (<= |ULTIMATE.start_check_#in~n#1| 2147483647) (<= 0 |ULTIMATE.start_lcp_~a#1.offset|) (= |ULTIMATE.start_check_#in~x#1| |ULTIMATE.start_check_~x#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= |ULTIMATE.start_check_~a#1.base| |ULTIMATE.start_check_#in~a#1.base|) (<= 0 |ULTIMATE.start_check_~a#1.offset|) (<= |ULTIMATE.start_lcp_#in~x#1| 2147483647) (<= |ULTIMATE.start_main_~l~1#1| 2147483647) (= |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_#res#1|) (<= |ULTIMATE.start_lcp_#in~n#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_check_#in~l#1| |ULTIMATE.start_check_~l#1|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~x#1|)) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_check_#in~a#1.offset|) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))' at error location [2022-12-14 15:26:46,948 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:26:46,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:26:46,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2022-12-14 15:26:46,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980058181] [2022-12-14 15:26:46,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:26:46,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-14 15:26:46,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:46,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-14 15:26:46,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=2100, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 15:26:46,950 INFO L87 Difference]: Start difference. First operand 111 states and 125 transitions. Second operand has 29 states, 24 states have (on average 3.625) internal successors, (87), 29 states have internal predecessors, (87), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-12-14 15:26:47,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:47,591 INFO L93 Difference]: Finished difference Result 129 states and 147 transitions. [2022-12-14 15:26:47,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 15:26:47,591 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 3.625) internal successors, (87), 29 states have internal predecessors, (87), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 39 [2022-12-14 15:26:47,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:47,592 INFO L225 Difference]: With dead ends: 129 [2022-12-14 15:26:47,592 INFO L226 Difference]: Without dead ends: 78 [2022-12-14 15:26:47,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 72 SyntacticMatches, 8 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1470 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=578, Invalid=3582, Unknown=0, NotChecked=0, Total=4160 [2022-12-14 15:26:47,593 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 410 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:47,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 117 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:26:47,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-14 15:26:47,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-12-14 15:26:47,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.0135135135135136) internal successors, (75), 74 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:26:47,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2022-12-14 15:26:47,600 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 39 [2022-12-14 15:26:47,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:47,600 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2022-12-14 15:26:47,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 3.625) internal successors, (87), 29 states have internal predecessors, (87), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-12-14 15:26:47,600 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2022-12-14 15:26:47,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 15:26:47,601 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:47,601 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:47,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-14 15:26:47,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-14 15:26:47,802 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:26:47,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:47,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1772510070, now seen corresponding path program 2 times [2022-12-14 15:26:47,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:47,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380675498] [2022-12-14 15:26:47,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:47,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:26:47,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:47,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380675498] [2022-12-14 15:26:47,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380675498] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:26:47,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554072141] [2022-12-14 15:26:47,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:26:47,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:47,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:26:47,921 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:26:47,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 15:26:47,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 15:26:47,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:26:47,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 15:26:47,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:26:48,161 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 1 proven. 48 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-12-14 15:26:48,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:26:48,257 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 1 proven. 48 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-12-14 15:26:48,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554072141] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:26:48,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1010450704] [2022-12-14 15:26:48,259 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 15:26:48,259 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:26:48,260 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:26:48,260 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:26:48,260 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:26:48,350 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:26:48,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 15:26:48,358 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 15:26:48,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-12-14 15:26:49,669 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 128 for LOIs [2022-12-14 15:26:49,721 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:26:54,016 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8809#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483648)) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (< 2147483646 |ULTIMATE.start_lcp_#t~post9#1|) (<= |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934588) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~y#1|)) (<= |ULTIMATE.start_lcp_#in~a#1.offset| 0) (<= 0 (+ |ULTIMATE.start_#Ultimate.meminit_#product#1| 8589934592)) (<= 0 (+ |ULTIMATE.start_lcp_#in~x#1| 2147483648)) (<= |ULTIMATE.start_lcp_~x#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_lcp_~y#1| 2147483647) (<= |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1| 2147483647) (= |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_#t~post9#1|) (<= 0 (+ |ULTIMATE.start_lcp_#in~n#1| 2147483648)) (<= 0 |ULTIMATE.start_lcp_#in~a#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (= |ULTIMATE.start_main_#t~malloc17#1.offset| 0) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~n#1|)) (<= 0 (+ |ULTIMATE.start_lcp_#in~y#1| 2147483648)) (<= |ULTIMATE.start_lcp_#in~y#1| 2147483647) (<= |ULTIMATE.start_lcp_~a#1.offset| 0) (<= |ULTIMATE.start_lcp_~n#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_lcp_~a#1.offset|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_lcp_#in~x#1| 2147483647) (<= |ULTIMATE.start_lcp_#in~n#1| 2147483647) (<= 0 |#StackHeapBarrier|) (<= 0 (+ 2147483648 |ULTIMATE.start_lcp_~x#1|)) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))' at error location [2022-12-14 15:26:54,016 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:26:54,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:26:54,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 20 [2022-12-14 15:26:54,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632036841] [2022-12-14 15:26:54,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:26:54,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 15:26:54,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:54,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 15:26:54,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1049, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 15:26:54,018 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand has 21 states, 19 states have (on average 6.368421052631579) internal successors, (121), 19 states have internal predecessors, (121), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 15:26:54,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:54,355 INFO L93 Difference]: Finished difference Result 95 states and 97 transitions. [2022-12-14 15:26:54,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 15:26:54,356 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 6.368421052631579) internal successors, (121), 19 states have internal predecessors, (121), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2022-12-14 15:26:54,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:54,356 INFO L225 Difference]: With dead ends: 95 [2022-12-14 15:26:54,356 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 15:26:54,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 191 SyntacticMatches, 22 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1023 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=391, Invalid=1961, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 15:26:54,357 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 115 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:54,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 35 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:26:54,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 15:26:54,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 15:26:54,357 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 15:26:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 15:26:54,358 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2022-12-14 15:26:54,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:54,358 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 15:26:54,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 6.368421052631579) internal successors, (121), 19 states have internal predecessors, (121), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 15:26:54,358 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 15:26:54,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 15:26:54,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2022-12-14 15:26:54,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2022-12-14 15:26:54,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2022-12-14 15:26:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2022-12-14 15:26:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2022-12-14 15:26:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2022-12-14 15:26:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2022-12-14 15:26:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2022-12-14 15:26:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2022-12-14 15:26:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2022-12-14 15:26:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2022-12-14 15:26:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2022-12-14 15:26:54,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2022-12-14 15:26:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2022-12-14 15:26:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2022-12-14 15:26:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2022-12-14 15:26:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2022-12-14 15:26:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2022-12-14 15:26:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2022-12-14 15:26:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2022-12-14 15:26:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2022-12-14 15:26:54,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2022-12-14 15:26:54,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 15:26:54,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:54,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 15:27:29,416 WARN L233 SmtUtils]: Spent 34.83s on a formula simplification. DAG size of input: 312 DAG size of output: 310 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 15:28:03,888 WARN L233 SmtUtils]: Spent 34.47s on a formula simplification. DAG size of input: 265 DAG size of output: 263 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 15:28:58,780 WARN L233 SmtUtils]: Spent 54.76s on a formula simplification. DAG size of input: 330 DAG size of output: 327 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-14 15:29:05,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,811 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (let ((.cse62 (select |#memory_int| 1)) (.cse61 (select |#memory_int| 2))) (let ((.cse35 (= |ULTIMATE.start_lcp_~l~0#1| 0)) (.cse0 (= (select .cse61 0) 108)) (.cse6 (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_~x#1|)) (.cse1 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|)) (.cse45 (= |ULTIMATE.start_check_~a#1.offset| |ULTIMATE.start_check_#in~a#1.offset|)) (.cse46 (= |ULTIMATE.start_check_#in~y#1| |ULTIMATE.start_check_~y#1|)) (.cse2 (= (select |#length| 3) 12)) (.cse47 (= |ULTIMATE.start_check_#in~n#1| |ULTIMATE.start_check_~n#1|)) (.cse5 (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4)) (.cse48 (= |ULTIMATE.start_check_#in~a#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (.cse7 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse8 (= (select .cse61 5) 0)) (.cse9 (= |ULTIMATE.start_#Ultimate.meminit_#product#1| (* |ULTIMATE.start_main_~n~0#1| 4))) (.cse10 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse11 (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_#t~malloc17#1.offset|)) (.cse49 (<= 0 (+ |ULTIMATE.start_check_~i~0#1| 2147483648))) (.cse12 (= 2 (select |#length| 1))) (.cse13 (= |ULTIMATE.start_main_#t~malloc17#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (.cse14 (= (select |#valid| 3) 1)) (.cse15 (= (select .cse61 1) 99)) (.cse16 (= (select |#valid| |ULTIMATE.start_main_#t~malloc17#1.base|) 1)) (.cse50 (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_check_#in~x#1|)) (.cse17 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|)) (.cse18 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) (.cse51 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_check_#in~y#1|)) (.cse19 (not (= 3 |ULTIMATE.start_main_#t~malloc17#1.base|))) (.cse20 (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|)) (.cse52 (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_check_#in~a#1.offset|)) (.cse21 (= |ULTIMATE.start_main_#t~malloc17#1.offset| 0)) (.cse22 (not (= (ite (and (< |ULTIMATE.start_main_~n~0#1| 1073741824) (<= 0 |ULTIMATE.start_main_~n~0#1|)) 1 0) 0))) (.cse23 (= (* (mod |ULTIMATE.start_main_~n~0#1| 1073741824) 4) (select |#length| |ULTIMATE.start_main_#t~malloc17#1.base|))) (.cse53 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_check_#in~n#1|)) (.cse54 (= |ULTIMATE.start_main_~l~1#1| |ULTIMATE.start_check_#in~l#1|)) (.cse24 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~x#1|)) (.cse25 (= (select |#valid| 1) 1)) (.cse26 (< |ULTIMATE.start_main_#t~malloc17#1.base| |#StackHeapBarrier|)) (.cse27 (= (select .cse61 4) 99)) (.cse28 (= (select |#valid| 0) 0)) (.cse55 (= |ULTIMATE.start_main_~l~1#1| |ULTIMATE.start_lcp_#res#1|)) (.cse29 (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) (.cse30 (= (select |#valid| 2) 1)) (.cse31 (= |#NULL.offset| 0)) (.cse32 (= (select .cse62 0) 48)) (.cse56 (= |ULTIMATE.start_check_#in~x#1| |ULTIMATE.start_check_~x#1|)) (.cse33 (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) (.cse57 (= |ULTIMATE.start_check_~a#1.base| |ULTIMATE.start_check_#in~a#1.base|)) (.cse58 (<= |ULTIMATE.start_check_~i~0#1| 2147483647)) (.cse34 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|)) (.cse59 (= |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_#res#1|)) (.cse36 (= (select .cse62 1) 0)) (.cse37 (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base|))) (.cse38 (= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base| |ULTIMATE.start_main_#t~malloc17#1.base|)) (.cse60 (= |ULTIMATE.start_check_#in~l#1| |ULTIMATE.start_check_~l#1|)) (.cse39 (= 46 (select .cse61 3))) (.cse40 (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0)) (.cse41 (= 6 (select |#length| 2))) (.cse42 (< 0 |#StackHeapBarrier|)) (.cse43 (= 112 (select .cse61 2))) (.cse44 (= |#NULL.base| 0))) (or (let ((.cse3 (select |#memory_int| |ULTIMATE.start_lcp_~a#1.base|)) (.cse4 (* |ULTIMATE.start_lcp_~l~0#1| 4))) (and .cse0 (<= (+ |ULTIMATE.start_main_~x~0#1| 1) |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2 (= (select .cse3 (+ (* 4 |ULTIMATE.start_lcp_~x#1|) |ULTIMATE.start_lcp_~a#1.offset| .cse4)) 0) .cse5 (<= 0 (+ 2147483648 |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~x#1|)) (<= .cse6 2147483646) .cse7 .cse8 (<= (+ |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~y#1|) 2147483647) .cse9 .cse10 .cse11 (= (select .cse3 (+ |ULTIMATE.start_lcp_~a#1.offset| (* 4 |ULTIMATE.start_lcp_~y#1|) .cse4)) 0) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 (<= 0 (+ 2147483648 |ULTIMATE.start_check_~x#1|)) .cse31 (<= (+ |ULTIMATE.start_check_~x#1| 1) |ULTIMATE.start_check_~y#1|) .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39 .cse40 .cse41 .cse42 (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~x~0#1| 1) |ULTIMATE.start_lcp_~n#1|) .cse43 .cse44)) (and .cse0 (= |ULTIMATE.start_lcp_#in~y#1| |ULTIMATE.start_main_~y~0#1|) .cse45 .cse46 .cse2 .cse47 .cse5 .cse48 .cse7 .cse8 (= |ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_lcp_#in~a#1.base|) (= |ULTIMATE.start_lcp_~a#1.base| |ULTIMATE.start_lcp_#in~a#1.base|) .cse9 .cse10 (<= |ULTIMATE.start_lcp_~n#1| .cse6) .cse11 (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_lcp_#in~a#1.offset|) .cse49 (= |ULTIMATE.start_lcp_#in~n#1| |ULTIMATE.start_lcp_~n#1|) (= |ULTIMATE.start_lcp_#in~y#1| |ULTIMATE.start_lcp_~y#1|) .cse12 .cse13 (= |ULTIMATE.start_lcp_#in~x#1| |ULTIMATE.start_main_~x~0#1|) .cse14 .cse15 .cse16 .cse50 .cse17 (= |ULTIMATE.start_lcp_#in~x#1| |ULTIMATE.start_lcp_~x#1|) .cse18 (= |ULTIMATE.start_lcp_#in~n#1| |ULTIMATE.start_main_~n~0#1|) .cse51 .cse19 .cse20 .cse52 .cse21 .cse22 .cse23 .cse53 .cse54 .cse25 (= |ULTIMATE.start_lcp_~a#1.offset| |ULTIMATE.start_lcp_#in~a#1.offset|) .cse26 .cse27 .cse28 .cse55 .cse29 .cse30 .cse31 .cse32 .cse56 .cse33 .cse57 .cse58 .cse35 .cse59 .cse36 .cse37 .cse38 .cse60 .cse39 .cse40 .cse41 .cse42 .cse43 .cse44) (and .cse0 (<= .cse6 2147483647) .cse1 .cse45 .cse46 .cse2 .cse47 .cse5 .cse48 .cse7 .cse8 (<= |ULTIMATE.start_lcp_#in~a#1.offset| 0) (<= 0 (+ |ULTIMATE.start_lcp_#in~x#1| 2147483648)) (<= 1 |ULTIMATE.start_lcp_~l~0#1|) .cse9 .cse10 .cse11 .cse49 .cse12 .cse13 (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_lcp_~n#1|) .cse14 .cse15 .cse16 .cse50 (<= 0 (+ |ULTIMATE.start_lcp_#in~n#1| 2147483648)) (<= 0 |ULTIMATE.start_lcp_#in~a#1.offset|) .cse17 .cse18 .cse51 .cse19 .cse20 .cse52 .cse21 .cse22 .cse23 .cse53 .cse54 .cse24 (<= 0 (+ |ULTIMATE.start_lcp_#in~y#1| 2147483648)) .cse25 (<= |ULTIMATE.start_lcp_#in~y#1| 2147483647) .cse26 .cse27 (<= |ULTIMATE.start_lcp_~a#1.offset| 0) (<= |ULTIMATE.start_lcp_~x#1| |ULTIMATE.start_main_~x~0#1|) .cse28 .cse55 .cse29 .cse30 .cse31 (<= 0 |ULTIMATE.start_lcp_~a#1.offset|) .cse32 .cse56 .cse33 .cse57 .cse58 .cse34 (<= |ULTIMATE.start_lcp_#in~x#1| 2147483647) .cse59 (<= |ULTIMATE.start_lcp_#in~n#1| 2147483647) .cse36 .cse37 .cse38 .cse60 .cse39 .cse40 .cse41 .cse42 .cse43 .cse44)))) [2022-12-14 15:29:05,811 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-12-14 15:29:05,811 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-12-14 15:29:05,811 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2022-12-14 15:29:05,811 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-12-14 15:29:05,811 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,811 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,811 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-12-14 15:29:05,811 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-12-14 15:29:05,811 INFO L899 garLoopResultBuilder]: For program point L28-2(line 28) no Hoare annotation was computed. [2022-12-14 15:29:05,812 INFO L895 garLoopResultBuilder]: At program point L28-3(line 28) the Hoare annotation is: (let ((.cse43 (select |#memory_int| 1)) (.cse42 (select |#memory_int| 2))) (let ((.cse0 (= (select .cse42 0) 108)) (.cse2 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|)) (.cse3 (= (select |#length| 3) 12)) (.cse4 (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4)) (.cse1 (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_~x#1|)) (.cse5 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse6 (= (select .cse42 5) 0)) (.cse7 (= |ULTIMATE.start_#Ultimate.meminit_#product#1| (* |ULTIMATE.start_main_~n~0#1| 4))) (.cse8 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse9 (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_#t~malloc17#1.offset|)) (.cse10 (= 2 (select |#length| 1))) (.cse11 (= |ULTIMATE.start_main_#t~malloc17#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (.cse12 (= (select |#valid| 3) 1)) (.cse13 (= (select .cse42 1) 99)) (.cse14 (= (select |#valid| |ULTIMATE.start_main_#t~malloc17#1.base|) 1)) (.cse15 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|)) (.cse16 (not (= 3 |ULTIMATE.start_main_#t~malloc17#1.base|))) (.cse17 (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|)) (.cse18 (= |ULTIMATE.start_main_#t~malloc17#1.offset| 0)) (.cse19 (not (= (ite (and (< |ULTIMATE.start_main_~n~0#1| 1073741824) (<= 0 |ULTIMATE.start_main_~n~0#1|)) 1 0) 0))) (.cse20 (= (* (mod |ULTIMATE.start_main_~n~0#1| 1073741824) 4) (select |#length| |ULTIMATE.start_main_#t~malloc17#1.base|))) (.cse21 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~x#1|)) (.cse22 (= (select |#valid| 1) 1)) (.cse23 (< |ULTIMATE.start_main_#t~malloc17#1.base| |#StackHeapBarrier|)) (.cse24 (= (select .cse42 4) 99)) (.cse25 (= (select |#valid| 0) 0)) (.cse26 (= (select |#valid| 2) 1)) (.cse27 (= |#NULL.offset| 0)) (.cse28 (= (select .cse43 0) 48)) (.cse29 (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) (.cse30 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|)) (.cse31 (= (select .cse43 1) 0)) (.cse32 (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base|))) (.cse33 (= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base| |ULTIMATE.start_main_#t~malloc17#1.base|)) (.cse34 (= 46 (select .cse42 3))) (.cse35 (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0)) (.cse36 (= 6 (select |#length| 2))) (.cse37 (< 0 |#StackHeapBarrier|)) (.cse38 (= 112 (select .cse42 2))) (.cse39 (= |#NULL.base| 0))) (or (and .cse0 (<= .cse1 2147483647) .cse2 (= |ULTIMATE.start_check_#in~y#1| |ULTIMATE.start_check_~y#1|) .cse3 (= |ULTIMATE.start_check_#in~n#1| |ULTIMATE.start_check_~n#1|) .cse4 (= |ULTIMATE.start_check_#in~a#1.base| |ULTIMATE.start_main_~a~0#1.base|) .cse5 .cse6 (= |ULTIMATE.start_check_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_check_~a#1.base|) (+ |ULTIMATE.start_check_~a#1.offset| (* 4 |ULTIMATE.start_check_~x#1|) (* |ULTIMATE.start_check_~i~0#1| 4)))) (<= |ULTIMATE.start_lcp_#in~a#1.offset| 0) (<= 0 (+ |ULTIMATE.start_lcp_#in~x#1| 2147483648)) .cse7 .cse8 .cse9 .cse10 .cse11 (not (= (ite (and (< |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~l#1|) (<= 0 |ULTIMATE.start_check_~i~0#1|)) 1 0) 0)) (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_lcp_~n#1|) .cse12 .cse13 .cse14 (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_check_#in~x#1|) (<= 0 (+ |ULTIMATE.start_lcp_#in~n#1| 2147483648)) (<= 0 |ULTIMATE.start_lcp_#in~a#1.offset|) .cse15 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_check_#in~y#1|) .cse16 .cse17 (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_check_#in~a#1.offset|) .cse18 .cse19 .cse20 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_check_#in~n#1|) (= |ULTIMATE.start_main_~l~1#1| |ULTIMATE.start_check_#in~l#1|) .cse21 (<= 0 (+ |ULTIMATE.start_lcp_#in~y#1| 2147483648)) .cse22 (<= |ULTIMATE.start_lcp_#in~y#1| 2147483647) .cse23 .cse24 (<= |ULTIMATE.start_lcp_~a#1.offset| 0) (<= |ULTIMATE.start_check_~a#1.offset| 0) (<= |ULTIMATE.start_lcp_~x#1| |ULTIMATE.start_main_~x~0#1|) .cse25 (= |ULTIMATE.start_main_~l~1#1| |ULTIMATE.start_lcp_#res#1|) .cse26 .cse27 (<= 0 |ULTIMATE.start_lcp_~a#1.offset|) .cse28 (= |ULTIMATE.start_check_#in~x#1| |ULTIMATE.start_check_~x#1|) .cse29 (= |ULTIMATE.start_check_~a#1.base| |ULTIMATE.start_check_#in~a#1.base|) (<= 0 |ULTIMATE.start_check_~a#1.offset|) .cse30 (<= |ULTIMATE.start_lcp_#in~x#1| 2147483647) (= |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_#res#1|) (<= |ULTIMATE.start_lcp_#in~n#1| 2147483647) .cse31 .cse32 .cse33 (= |ULTIMATE.start_check_#in~l#1| |ULTIMATE.start_check_~l#1|) .cse34 .cse35 .cse36 .cse37 .cse38 .cse39) (let ((.cse40 (select |#memory_int| |ULTIMATE.start_lcp_~a#1.base|)) (.cse41 (* |ULTIMATE.start_lcp_~l~0#1| 4))) (and .cse0 .cse2 .cse3 (= (select .cse40 (+ (* 4 |ULTIMATE.start_lcp_~x#1|) |ULTIMATE.start_lcp_~a#1.offset| .cse41)) 0) .cse4 (<= 0 (+ 2147483648 |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~x#1|)) (<= .cse1 2147483646) .cse5 .cse6 (<= (+ |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~y#1|) 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~y#1|)) .cse7 .cse8 .cse9 (= (select .cse40 (+ |ULTIMATE.start_lcp_~a#1.offset| (* 4 |ULTIMATE.start_lcp_~y#1|) .cse41)) 0) (<= 0 (+ |ULTIMATE.start_check_~i~0#1| 2147483648 |ULTIMATE.start_check_~x#1|)) .cse10 .cse11 .cse12 (<= (+ |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~x#1|) 2147483645) .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (<= (+ |ULTIMATE.start_check_~l#1| |ULTIMATE.start_check_~x#1|) 2147483646) .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (<= 0 (+ 2147483648 |ULTIMATE.start_check_~x#1|)) .cse27 .cse28 (<= (+ |ULTIMATE.start_check_~i~0#1| |ULTIMATE.start_check_~y#1|) 2147483646) .cse29 .cse30 (= |ULTIMATE.start_lcp_~l~0#1| 0) .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~x~0#1| 1) |ULTIMATE.start_lcp_~n#1|) .cse38 .cse39))))) [2022-12-14 15:29:05,812 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2022-12-14 15:29:05,812 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-12-14 15:29:05,812 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-12-14 15:29:05,812 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,812 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-12-14 15:29:05,812 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-12-14 15:29:05,812 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 15:29:05,812 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (let ((.cse1 (select |#memory_int| 1)) (.cse0 (select |#memory_int| 2))) (and (= (select .cse0 0) 108) (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (= (select |#length| 3) 12) (= (select .cse0 5) 0) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select .cse0 1) 99) (= (select |#valid| 1) 1) (= (select .cse0 4) 99) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse1 0) 48) (= (select .cse1 1) 0) (= 46 (select .cse0 3)) (= 6 (select |#length| 2)) (< 0 |#StackHeapBarrier|) (= 112 (select .cse0 2)) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))) [2022-12-14 15:29:05,812 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point L31-2(line 31) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point L31-3(line 31) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point L31-4(line 31) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point L31-6(lines 31 32) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point L32-2(line 32) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point L32-3(line 32) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L895 garLoopResultBuilder]: At program point L32-4(line 32) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point L32-5(line 32) no Hoare annotation was computed. [2022-12-14 15:29:05,813 INFO L895 garLoopResultBuilder]: At program point L24(lines 24 33) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) [2022-12-14 15:29:05,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point L18-2(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point L18-3(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point L18-4(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point L18-6(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (let ((.cse1 (select |#memory_int| 1)) (.cse0 (select |#memory_int| 2))) (and (= (select .cse0 0) 108) (= (select |#length| 3) 12) (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4) (= (select .cse0 5) 0) (= |ULTIMATE.start_#Ultimate.meminit_#product#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_#t~malloc17#1.offset|) (= 2 (select |#length| 1)) (= |ULTIMATE.start_main_#t~malloc17#1.base| |ULTIMATE.start_main_~a~0#1.base|) (= |ULTIMATE.start_main_#t~malloc17#1.offset| |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|) (= (select |#valid| 3) 1) (= (select .cse0 1) 99) (= (select |#valid| |ULTIMATE.start_main_#t~malloc17#1.base|) 1) (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (not (= 3 |ULTIMATE.start_main_#t~malloc17#1.base|)) (= |ULTIMATE.start_main_#t~malloc17#1.offset| 0) (not (= (ite (and (< |ULTIMATE.start_main_~n~0#1| 1073741824) (<= 0 |ULTIMATE.start_main_~n~0#1|)) 1 0) 0)) (= (* (mod |ULTIMATE.start_main_~n~0#1| 1073741824) 4) (select |#length| |ULTIMATE.start_main_#t~malloc17#1.base|)) (= (select |#valid| 1) 1) (< |ULTIMATE.start_main_#t~malloc17#1.base| |#StackHeapBarrier|) (= (select .cse0 4) 99) (= (select |#valid| 0) 0) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse1 0) 48) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= (select .cse1 1) 0) (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base|)) (= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base| |ULTIMATE.start_main_#t~malloc17#1.base|) (= 46 (select .cse0 3)) (= 6 (select |#length| 2)) (< 0 |#StackHeapBarrier|) (= 112 (select .cse0 2)) (= |#NULL.base| 0))) [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point L18-7(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point L18-8(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point L18-9(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,815 INFO L899 garLoopResultBuilder]: For program point L18-10(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,815 INFO L899 garLoopResultBuilder]: For program point L18-11(line 18) no Hoare annotation was computed. [2022-12-14 15:29:05,815 INFO L899 garLoopResultBuilder]: For program point L18-13(lines 18 20) no Hoare annotation was computed. [2022-12-14 15:29:05,815 INFO L895 garLoopResultBuilder]: At program point L18-15(lines 18 20) the Hoare annotation is: (let ((.cse40 (select |#memory_int| 1)) (.cse39 (select |#memory_int| 2))) (let ((.cse0 (= (select .cse39 0) 108)) (.cse1 (= (select |#length| 3) 12)) (.cse2 (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4)) (.cse3 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse4 (= (select .cse39 5) 0)) (.cse5 (= |ULTIMATE.start_#Ultimate.meminit_#product#1| (* |ULTIMATE.start_main_~n~0#1| 4))) (.cse6 (= 2 (select |#length| 1))) (.cse7 (= |ULTIMATE.start_main_#t~malloc17#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (.cse8 (= (select |#valid| 3) 1)) (.cse9 (= (select .cse39 1) 99)) (.cse10 (= (select |#valid| |ULTIMATE.start_main_#t~malloc17#1.base|) 1)) (.cse11 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|)) (.cse12 (not (= 3 |ULTIMATE.start_main_#t~malloc17#1.base|))) (.cse13 (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|)) (.cse14 (= |ULTIMATE.start_main_#t~malloc17#1.offset| 0)) (.cse15 (not (= (ite (and (< |ULTIMATE.start_main_~n~0#1| 1073741824) (<= 0 |ULTIMATE.start_main_~n~0#1|)) 1 0) 0))) (.cse16 (= (* (mod |ULTIMATE.start_main_~n~0#1| 1073741824) 4) (select |#length| |ULTIMATE.start_main_#t~malloc17#1.base|))) (.cse17 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~x#1|)) (.cse18 (= (select |#valid| 1) 1)) (.cse19 (< |ULTIMATE.start_main_#t~malloc17#1.base| |#StackHeapBarrier|)) (.cse20 (= (select .cse39 4) 99)) (.cse21 (<= |ULTIMATE.start_lcp_~a#1.offset| 0)) (.cse22 (<= |ULTIMATE.start_lcp_~x#1| |ULTIMATE.start_main_~x~0#1|)) (.cse23 (= (select |#valid| 0) 0)) (.cse24 (= (select |#valid| 2) 1)) (.cse25 (= |#NULL.offset| 0)) (.cse26 (<= 0 |ULTIMATE.start_lcp_~a#1.offset|)) (.cse27 (= (select .cse40 0) 48)) (.cse28 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|)) (.cse29 (<= |ULTIMATE.start_lcp_#in~x#1| 2147483647)) (.cse30 (= (select .cse40 1) 0)) (.cse31 (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base|))) (.cse32 (= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base| |ULTIMATE.start_main_#t~malloc17#1.base|)) (.cse33 (= 46 (select .cse39 3))) (.cse34 (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0)) (.cse35 (= 6 (select |#length| 2))) (.cse36 (< 0 |#StackHeapBarrier|)) (.cse37 (= 112 (select .cse39 2))) (.cse38 (= |#NULL.base| 0))) (or (and .cse0 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|) .cse1 .cse2 .cse3 .cse4 (<= |ULTIMATE.start_lcp_#in~a#1.offset| 0) (<= 0 (+ |ULTIMATE.start_lcp_#in~x#1| 2147483648)) (<= 1 |ULTIMATE.start_lcp_~l~0#1|) .cse5 (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_#t~malloc17#1.offset|) .cse6 .cse7 (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_lcp_~n#1|) .cse8 .cse9 .cse10 (<= 0 (+ |ULTIMATE.start_lcp_#in~n#1| 2147483648)) (<= 0 |ULTIMATE.start_lcp_#in~a#1.offset|) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (<= 0 (+ |ULTIMATE.start_lcp_#in~y#1| 2147483648)) .cse18 (<= |ULTIMATE.start_lcp_#in~y#1| 2147483647) .cse19 .cse20 .cse21 (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~x~0#1|) 2147483647) .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 (<= |ULTIMATE.start_lcp_#in~n#1| 2147483647) .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38) (and .cse0 (= |ULTIMATE.start_lcp_#in~y#1| |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_lcp_#in~a#1.base|) (= |ULTIMATE.start_lcp_~a#1.base| |ULTIMATE.start_lcp_#in~a#1.base|) .cse5 (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_lcp_#in~a#1.offset|) (= |ULTIMATE.start_lcp_#in~y#1| |ULTIMATE.start_lcp_~y#1|) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (= |ULTIMATE.start_lcp_#in~x#1| |ULTIMATE.start_lcp_~x#1|) (= |ULTIMATE.start_lcp_#in~n#1| |ULTIMATE.start_main_~n~0#1|) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (= |ULTIMATE.start_lcp_~a#1.offset| |ULTIMATE.start_lcp_#in~a#1.offset|) .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 (<= |ULTIMATE.start_main_~y~0#1| 2147483647) .cse28 (= |ULTIMATE.start_lcp_~l~0#1| 0) .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38)))) [2022-12-14 15:29:05,815 INFO L895 garLoopResultBuilder]: At program point L18-16(lines 18 20) the Hoare annotation is: (let ((.cse46 (select |#memory_int| 1)) (.cse45 (select |#memory_int| 2))) (let ((.cse30 (= |ULTIMATE.start_lcp_~l~0#1| 0)) (.cse0 (= (select .cse45 0) 108)) (.cse7 (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_lcp_~x#1|)) (.cse40 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_lcp_~y#1|)) (.cse1 (= (select |#length| 3) 12)) (.cse2 (= |ULTIMATE.start_#Ultimate.meminit_#sizeOfFields#1| 4)) (.cse3 (not (= (ite (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|)) 1 0) 0))) (.cse4 (= (select .cse45 5) 0)) (.cse5 (= |ULTIMATE.start_#Ultimate.meminit_#product#1| (* |ULTIMATE.start_main_~n~0#1| 4))) (.cse6 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse8 (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_main_#t~malloc17#1.offset|)) (.cse9 (= 2 (select |#length| 1))) (.cse10 (= |ULTIMATE.start_main_#t~malloc17#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (.cse11 (= (select |#valid| 3) 1)) (.cse12 (= (select .cse45 1) 99)) (.cse13 (= (select |#valid| |ULTIMATE.start_main_#t~malloc17#1.base|) 1)) (.cse14 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_#Ultimate.meminit_#amountOfFields#1|)) (.cse15 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) (.cse16 (not (= 3 |ULTIMATE.start_main_#t~malloc17#1.base|))) (.cse17 (<= 0 |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset|)) (.cse18 (= |ULTIMATE.start_main_#t~malloc17#1.offset| 0)) (.cse19 (not (= (ite (and (< |ULTIMATE.start_main_~n~0#1| 1073741824) (<= 0 |ULTIMATE.start_main_~n~0#1|)) 1 0) 0))) (.cse20 (= (* (mod |ULTIMATE.start_main_~n~0#1| 1073741824) 4) (select |#length| |ULTIMATE.start_main_#t~malloc17#1.base|))) (.cse43 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_lcp_~x#1|)) (.cse21 (= (select |#valid| 1) 1)) (.cse22 (< |ULTIMATE.start_main_#t~malloc17#1.base| |#StackHeapBarrier|)) (.cse23 (= (select .cse45 4) 99)) (.cse24 (= (select |#valid| 0) 0)) (.cse25 (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) (.cse26 (= (select |#valid| 2) 1)) (.cse27 (= |#NULL.offset| 0)) (.cse28 (= (select .cse46 0) 48)) (.cse29 (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) (.cse44 (= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_lcp_~n#1|)) (.cse31 (= (select .cse46 1) 0)) (.cse32 (= ((as const (Array Int Int)) 0) (select |#memory_int| |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base|))) (.cse33 (= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.base| |ULTIMATE.start_main_#t~malloc17#1.base|)) (.cse34 (= 46 (select .cse45 3))) (.cse35 (<= |ULTIMATE.start_#Ultimate.meminit_#ptr#1.offset| 0)) (.cse36 (= 6 (select |#length| 2))) (.cse37 (< 0 |#StackHeapBarrier|)) (.cse38 (= 112 (select .cse45 2))) (.cse39 (= |#NULL.base| 0))) (or (and .cse0 (= |ULTIMATE.start_lcp_#in~y#1| |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_lcp_#in~a#1.base|) (= |ULTIMATE.start_lcp_~a#1.base| |ULTIMATE.start_lcp_#in~a#1.base|) .cse5 .cse6 (<= |ULTIMATE.start_lcp_~n#1| .cse7) .cse8 (= |ULTIMATE.start_main_~a~0#1.offset| |ULTIMATE.start_lcp_#in~a#1.offset|) (= |ULTIMATE.start_lcp_#in~n#1| |ULTIMATE.start_lcp_~n#1|) (= |ULTIMATE.start_lcp_#in~y#1| |ULTIMATE.start_lcp_~y#1|) .cse9 .cse10 (= |ULTIMATE.start_lcp_#in~x#1| |ULTIMATE.start_main_~x~0#1|) .cse11 .cse12 .cse13 .cse14 (= |ULTIMATE.start_lcp_#in~x#1| |ULTIMATE.start_lcp_~x#1|) .cse15 (= |ULTIMATE.start_lcp_#in~n#1| |ULTIMATE.start_main_~n~0#1|) .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 (= |ULTIMATE.start_lcp_~a#1.offset| |ULTIMATE.start_lcp_#in~a#1.offset|) .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39) (let ((.cse41 (select |#memory_int| |ULTIMATE.start_lcp_~a#1.base|)) (.cse42 (* |ULTIMATE.start_lcp_~l~0#1| 4))) (and .cse0 (<= (+ |ULTIMATE.start_main_~x~0#1| 1) |ULTIMATE.start_main_~y~0#1|) .cse40 .cse1 (= (select .cse41 (+ (* 4 |ULTIMATE.start_lcp_~x#1|) |ULTIMATE.start_lcp_~a#1.offset| .cse42)) 0) .cse2 (<= .cse7 2147483646) .cse3 .cse4 .cse5 .cse6 .cse8 (= (select .cse41 (+ |ULTIMATE.start_lcp_~a#1.offset| (* 4 |ULTIMATE.start_lcp_~y#1|) .cse42)) 0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse43 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29 .cse44 .cse30 .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~x~0#1| 1) |ULTIMATE.start_lcp_~n#1|) .cse38 .cse39)) (and .cse0 (<= .cse7 2147483647) .cse40 .cse1 .cse2 .cse3 .cse4 (<= |ULTIMATE.start_lcp_#in~a#1.offset| 0) (<= 0 (+ |ULTIMATE.start_lcp_#in~x#1| 2147483648)) (<= 1 |ULTIMATE.start_lcp_~l~0#1|) .cse5 .cse6 .cse8 .cse9 .cse10 (<= (+ |ULTIMATE.start_lcp_~l~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_lcp_~n#1|) .cse11 .cse12 .cse13 (<= 0 (+ |ULTIMATE.start_lcp_#in~n#1| 2147483648)) (<= 0 |ULTIMATE.start_lcp_#in~a#1.offset|) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse43 (<= 0 (+ |ULTIMATE.start_lcp_#in~y#1| 2147483648)) .cse21 (<= |ULTIMATE.start_lcp_#in~y#1| 2147483647) .cse22 .cse23 (<= |ULTIMATE.start_lcp_~a#1.offset| 0) (<= |ULTIMATE.start_lcp_~x#1| |ULTIMATE.start_main_~x~0#1|) .cse24 .cse25 .cse26 .cse27 (<= 0 |ULTIMATE.start_lcp_~a#1.offset|) .cse28 .cse29 .cse44 (<= |ULTIMATE.start_lcp_#in~x#1| 2147483647) (<= |ULTIMATE.start_lcp_#in~n#1| 2147483647) .cse31 .cse32 .cse33 .cse34 .cse35 .cse36 .cse37 .cse38 .cse39)))) [2022-12-14 15:29:05,815 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5 7) the Hoare annotation is: true [2022-12-14 15:29:05,815 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-12-14 15:29:05,815 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 12 14) no Hoare annotation was computed. [2022-12-14 15:29:05,815 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 12 14) the Hoare annotation is: true [2022-12-14 15:29:05,818 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:05,819 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:29:05,824 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:265) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 15:29:05,826 INFO L158 Benchmark]: Toolchain (without parser) took 196234.27ms. Allocated memory was 127.9MB in the beginning and 469.8MB in the end (delta: 341.8MB). Free memory was 100.8MB in the beginning and 222.0MB in the end (delta: -121.2MB). Peak memory consumption was 293.9MB. Max. memory is 16.1GB. [2022-12-14 15:29:05,826 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:29:05,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.75ms. Allocated memory is still 127.9MB. Free memory was 100.8MB in the beginning and 90.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 15:29:05,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.46ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 87.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:29:05,826 INFO L158 Benchmark]: Boogie Preprocessor took 26.84ms. Allocated memory is still 127.9MB. Free memory was 87.9MB in the beginning and 86.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:29:05,826 INFO L158 Benchmark]: RCFGBuilder took 361.54ms. Allocated memory is still 127.9MB. Free memory was 86.4MB in the beginning and 68.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 15:29:05,826 INFO L158 Benchmark]: TraceAbstraction took 195615.47ms. Allocated memory was 127.9MB in the beginning and 469.8MB in the end (delta: 341.8MB). Free memory was 67.8MB in the beginning and 222.0MB in the end (delta: -154.2MB). Peak memory consumption was 260.3MB. Max. memory is 16.1GB. [2022-12-14 15:29:05,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.75ms. Allocated memory is still 127.9MB. Free memory was 100.8MB in the beginning and 90.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.46ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 87.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.84ms. Allocated memory is still 127.9MB. Free memory was 87.9MB in the beginning and 86.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 361.54ms. Allocated memory is still 127.9MB. Free memory was 86.4MB in the beginning and 68.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 195615.47ms. Allocated memory was 127.9MB in the beginning and 469.8MB in the end (delta: 341.8MB). Free memory was 67.8MB in the beginning and 222.0MB in the end (delta: -154.2MB). Peak memory consumption was 260.3MB. 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: 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: 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: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: 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 3 procedures, 67 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 195.6s, OverallIterations: 25, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 131.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5027 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4994 mSDsluCounter, 4435 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3315 mSDsCounter, 371 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5156 IncrementalHoareTripleChecker+Invalid, 5527 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 371 mSolverCounterUnsat, 1120 mSDtfsCounter, 5156 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1356 GetRequests, 764 SyntacticMatches, 87 SemanticMatches, 505 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6759 ImplicationChecksByTransitivity, 43.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=13, InterpolantAutomatonStates: 262, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 25 MinimizatonAttempts, 626 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 31 PreInvPairs, 55 NumberOfFragments, 3007 HoareAnnotationTreeSize, 31 FomulaSimplifications, 458665 FormulaSimplificationTreeSizeReduction, 124.2s HoareSimplificationTime, 10 FomulaSimplificationsInter, 1519360 FormulaSimplificationTreeSizeReductionInter, 7.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 1080 NumberOfCodeBlocks, 1038 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 1371 ConstructedInterpolants, 0 QuantifiedInterpolants, 6937 SizeOfPredicates, 99 NumberOfNonLiveVariables, 1811 ConjunctsInSsa, 130 ConjunctsInUnsatCore, 45 InterpolantComputations, 16 PerfectInterpolantSequences, 387/761 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: 2.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 57, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 97, TOOLS_POST_TIME: 1.0s, TOOLS_POST_CALL_APPLICATIONS: 18, TOOLS_POST_CALL_TIME: 0.6s, TOOLS_POST_RETURN_APPLICATIONS: 12, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 127, TOOLS_QUANTIFIERELIM_TIME: 1.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 172, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 29, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 57, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 12, CALL_SUMMARIZER_CACHE_MISSES: 2, 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: 1607, DAG_COMPRESSION_RETAINED_NODES: 144, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:265) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-14 15:29:05,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/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_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/lcp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/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 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a --- 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 15:29:07,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:29:07,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:29:07,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:29:07,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:29:07,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:29:07,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:29:07,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:29:07,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:29:07,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:29:07,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:29:07,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:29:07,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:29:07,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:29:07,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:29:07,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:29:07,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:29:07,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:29:07,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:29:07,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:29:07,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:29:07,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:29:07,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:29:07,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:29:07,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:29:07,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:29:07,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:29:07,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:29:07,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:29:07,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:29:07,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:29:07,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:29:07,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:29:07,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:29:07,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:29:07,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:29:07,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:29:07,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:29:07,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:29:07,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:29:07,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:29:07,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-12-14 15:29:07,543 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:29:07,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:29:07,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:29:07,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:29:07,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:29:07,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:29:07,544 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:29:07,544 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:29:07,544 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:29:07,544 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:29:07,544 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:29:07,544 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:29:07,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:29:07,545 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:29:07,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:29:07,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:29:07,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:29:07,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:29:07,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:29:07,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:29:07,546 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:29:07,546 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 15:29:07,546 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:29:07,546 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 15:29:07,546 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:29:07,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:29:07,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:29:07,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:29:07,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:29:07,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 15:29:07,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:29:07,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:29:07,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:29:07,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:29:07,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:29:07,547 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 15:29:07,547 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:07,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:29:07,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:29:07,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 15:29:07,548 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_0b8e62f0-b870-4e33-82d5-6a7383331821/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e47fbc54bff4eeebe072cdb8acf7cfe734a91f148fd421ae1769ba3b81a6f5a [2022-12-14 15:29:07,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:29:07,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:29:07,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:29:07,802 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:29:07,802 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:29:07,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/verifythis/lcp.c [2022-12-14 15:29:10,516 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:29:10,674 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:29:10,674 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/sv-benchmarks/c/verifythis/lcp.c [2022-12-14 15:29:10,680 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/data/b0f9c7e30/51cd058438e249a8bfaaae4ca11613b8/FLAG741fbd230 [2022-12-14 15:29:10,691 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/data/b0f9c7e30/51cd058438e249a8bfaaae4ca11613b8 [2022-12-14 15:29:10,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:29:10,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:29:10,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:29:10,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:29:10,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:29:10,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75cd176a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10, skipping insertion in model container [2022-12-14 15:29:10,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:29:10,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:29:10,825 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_0b8e62f0-b870-4e33-82d5-6a7383331821/sv-benchmarks/c/verifythis/lcp.c[515,528] [2022-12-14 15:29:10,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:29:10,860 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:29:10,871 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_0b8e62f0-b870-4e33-82d5-6a7383331821/sv-benchmarks/c/verifythis/lcp.c[515,528] [2022-12-14 15:29:10,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:29:10,900 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:29:10,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10 WrapperNode [2022-12-14 15:29:10,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:29:10,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:29:10,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:29:10,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:29:10,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,937 INFO L138 Inliner]: procedures = 22, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 111 [2022-12-14 15:29:10,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:29:10,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:29:10,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:29:10,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:29:10,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,958 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:29:10,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:29:10,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:29:10,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:29:10,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (1/1) ... [2022-12-14 15:29:10,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:29:10,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:29:10,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:29:10,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:29:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:29:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 15:29:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 15:29:11,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 15:29:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:29:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 15:29:11,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:29:11,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:29:11,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 15:29:11,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 15:29:11,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:29:11,101 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:29:11,102 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:29:11,372 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:29:11,377 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:29:11,377 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 15:29:11,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:29:11 BoogieIcfgContainer [2022-12-14 15:29:11,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:29:11,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:29:11,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:29:11,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:29:11,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:29:10" (1/3) ... [2022-12-14 15:29:11,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dca40a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:29:11, skipping insertion in model container [2022-12-14 15:29:11,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:29:10" (2/3) ... [2022-12-14 15:29:11,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dca40a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:29:11, skipping insertion in model container [2022-12-14 15:29:11,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:29:11" (3/3) ... [2022-12-14 15:29:11,385 INFO L112 eAbstractionObserver]: Analyzing ICFG lcp.c [2022-12-14 15:29:11,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:29:11,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-12-14 15:29:11,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:29:11,437 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;@1a07f457, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:29:11,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-14 15:29:11,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 68 states have internal predecessors, (76), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:29:11,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 15:29:11,445 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:11,445 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:11,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:11,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:11,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2072078998, now seen corresponding path program 1 times [2022-12-14 15:29:11,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:11,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497617794] [2022-12-14 15:29:11,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:11,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:11,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:11,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:11,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 15:29:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:11,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 15:29:11,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:29:11,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:29:11,591 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:11,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497617794] [2022-12-14 15:29:11,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497617794] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:29:11,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:29:11,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:29:11,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132205568] [2022-12-14 15:29:11,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:29:11,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:29:11,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:11,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:29:11,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:29:11,625 INFO L87 Difference]: Start difference. First operand has 76 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 68 states have internal predecessors, (76), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:29:11,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:11,652 INFO L93 Difference]: Finished difference Result 148 states and 173 transitions. [2022-12-14 15:29:11,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:29:11,654 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-12-14 15:29:11,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:11,660 INFO L225 Difference]: With dead ends: 148 [2022-12-14 15:29:11,660 INFO L226 Difference]: Without dead ends: 69 [2022-12-14 15:29:11,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:29:11,664 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:11,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:29:11,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-12-14 15:29:11,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-12-14 15:29:11,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 62 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:11,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2022-12-14 15:29:11,693 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 16 [2022-12-14 15:29:11,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:11,693 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2022-12-14 15:29:11,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:29:11,693 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2022-12-14 15:29:11,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 15:29:11,694 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:11,694 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:11,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:29:11,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:11,897 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:11,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:11,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1812066518, now seen corresponding path program 1 times [2022-12-14 15:29:11,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:11,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799897053] [2022-12-14 15:29:11,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:11,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:11,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:11,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:11,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 15:29:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:12,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 15:29:12,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:29:12,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:29:12,153 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:12,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799897053] [2022-12-14 15:29:12,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799897053] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:29:12,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:29:12,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:29:12,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146224614] [2022-12-14 15:29:12,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:29:12,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:29:12,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:12,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:29:12,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:29:12,157 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:12,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:12,320 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2022-12-14 15:29:12,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:29:12,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-12-14 15:29:12,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:12,322 INFO L225 Difference]: With dead ends: 123 [2022-12-14 15:29:12,322 INFO L226 Difference]: Without dead ends: 115 [2022-12-14 15:29:12,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:29:12,323 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 132 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:12,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 283 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:29:12,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-12-14 15:29:12,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 80. [2022-12-14 15:29:12,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 53 states have (on average 1.490566037735849) internal successors, (79), 73 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:12,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2022-12-14 15:29:12,331 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 16 [2022-12-14 15:29:12,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:12,331 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2022-12-14 15:29:12,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:12,331 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2022-12-14 15:29:12,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 15:29:12,332 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:12,332 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:12,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 15:29:12,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:12,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:12,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:12,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1320037842, now seen corresponding path program 1 times [2022-12-14 15:29:12,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:12,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263917620] [2022-12-14 15:29:12,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:12,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:12,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:12,535 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:12,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 15:29:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:12,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:29:12,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:12,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:29:12,590 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:12,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263917620] [2022-12-14 15:29:12,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263917620] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:29:12,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:29:12,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:29:12,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588948892] [2022-12-14 15:29:12,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:29:12,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:29:12,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:12,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:29:12,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:29:12,592 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:12,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:12,624 INFO L93 Difference]: Finished difference Result 152 states and 166 transitions. [2022-12-14 15:29:12,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:29:12,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-12-14 15:29:12,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:12,625 INFO L225 Difference]: With dead ends: 152 [2022-12-14 15:29:12,625 INFO L226 Difference]: Without dead ends: 86 [2022-12-14 15:29:12,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:29:12,626 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 2 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:12,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 204 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:29:12,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-12-14 15:29:12,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2022-12-14 15:29:12,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 76 states have internal predecessors, (82), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:12,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2022-12-14 15:29:12,640 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 23 [2022-12-14 15:29:12,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:12,640 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2022-12-14 15:29:12,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:12,641 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2022-12-14 15:29:12,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 15:29:12,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:12,642 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:12,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 15:29:12,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:12,844 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:12,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:12,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1651266854, now seen corresponding path program 1 times [2022-12-14 15:29:12,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:12,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262398887] [2022-12-14 15:29:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:12,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:12,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:12,851 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:12,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 15:29:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:12,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 15:29:12,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:12,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:29:12,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:29:12,994 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:12,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262398887] [2022-12-14 15:29:12,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262398887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:29:12,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:29:12,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 15:29:12,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569900465] [2022-12-14 15:29:12,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:29:12,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:29:12,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:12,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:29:12,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:29:12,995 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:29:13,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:13,166 INFO L93 Difference]: Finished difference Result 125 states and 134 transitions. [2022-12-14 15:29:13,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:29:13,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-12-14 15:29:13,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:13,168 INFO L225 Difference]: With dead ends: 125 [2022-12-14 15:29:13,168 INFO L226 Difference]: Without dead ends: 87 [2022-12-14 15:29:13,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:29:13,169 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 16 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:13,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 316 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:29:13,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-12-14 15:29:13,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2022-12-14 15:29:13,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 77 states have internal predecessors, (81), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2022-12-14 15:29:13,177 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 29 [2022-12-14 15:29:13,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:13,177 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2022-12-14 15:29:13,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:29:13,178 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2022-12-14 15:29:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 15:29:13,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:13,179 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:13,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 15:29:13,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:13,381 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:13,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:13,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1811735592, now seen corresponding path program 1 times [2022-12-14 15:29:13,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:13,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141545152] [2022-12-14 15:29:13,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:13,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:13,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:13,387 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:13,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 15:29:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:13,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:29:13,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:13,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:13,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:29:13,610 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:13,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141545152] [2022-12-14 15:29:13,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141545152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:29:13,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:29:13,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:29:13,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096965359] [2022-12-14 15:29:13,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:29:13,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:29:13,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:13,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:29:13,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:29:13,612 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:13,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:13,684 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2022-12-14 15:29:13,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:29:13,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-12-14 15:29:13,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:13,685 INFO L225 Difference]: With dead ends: 87 [2022-12-14 15:29:13,685 INFO L226 Difference]: Without dead ends: 86 [2022-12-14 15:29:13,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:29:13,686 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 2 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:13,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 178 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:29:13,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-12-14 15:29:13,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-12-14 15:29:13,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 79 states have internal predecessors, (83), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2022-12-14 15:29:13,691 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 29 [2022-12-14 15:29:13,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:13,691 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2022-12-14 15:29:13,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:13,691 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2022-12-14 15:29:13,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 15:29:13,691 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:13,691 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:13,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-12-14 15:29:13,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:13,893 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:13,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:13,894 INFO L85 PathProgramCache]: Analyzing trace with hash -329228460, now seen corresponding path program 1 times [2022-12-14 15:29:13,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:13,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361172990] [2022-12-14 15:29:13,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:13,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:13,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:13,899 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:13,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 15:29:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:14,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:29:14,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:29:14,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:14,363 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:14,363 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:14,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361172990] [2022-12-14 15:29:14,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361172990] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:14,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1803369743] [2022-12-14 15:29:14,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:14,364 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:14,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:29:14,365 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:29:14,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-12-14 15:29:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:14,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:29:14,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:29:14,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:14,602 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:14,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1803369743] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:14,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531626233] [2022-12-14 15:29:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:14,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:14,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:29:14,603 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:29:14,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 15:29:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:14,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:29:14,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:29:14,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:14,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531626233] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:14,801 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 15:29:14,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 7, 4, 7, 4] total 10 [2022-12-14 15:29:14,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228884764] [2022-12-14 15:29:14,802 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 15:29:14,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 15:29:14,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:14,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 15:29:14,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-14 15:29:14,803 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 15:29:15,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:15,459 INFO L93 Difference]: Finished difference Result 196 states and 217 transitions. [2022-12-14 15:29:15,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 15:29:15,460 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2022-12-14 15:29:15,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:15,461 INFO L225 Difference]: With dead ends: 196 [2022-12-14 15:29:15,461 INFO L226 Difference]: Without dead ends: 192 [2022-12-14 15:29:15,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:29:15,462 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 380 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:15,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 571 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 15:29:15,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-12-14 15:29:15,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 114. [2022-12-14 15:29:15,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 88 states have (on average 1.4659090909090908) internal successors, (129), 107 states have internal predecessors, (129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:15,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2022-12-14 15:29:15,469 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 30 [2022-12-14 15:29:15,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:15,469 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2022-12-14 15:29:15,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 15:29:15,469 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2022-12-14 15:29:15,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 15:29:15,469 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:15,470 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:15,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2022-12-14 15:29:15,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 15:29:15,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-12-14 15:29:16,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:16,072 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:16,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:16,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1616147622, now seen corresponding path program 1 times [2022-12-14 15:29:16,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:16,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992439986] [2022-12-14 15:29:16,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:16,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:16,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:16,079 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:16,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-14 15:29:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:16,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 15:29:16,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:16,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:16,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:16,849 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:16,849 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:16,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992439986] [2022-12-14 15:29:16,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992439986] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:16,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:29:16,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2022-12-14 15:29:16,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035115153] [2022-12-14 15:29:16,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:29:16,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:29:16,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:16,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:29:16,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-12-14 15:29:16,851 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:17,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:17,146 INFO L93 Difference]: Finished difference Result 146 states and 171 transitions. [2022-12-14 15:29:17,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:29:17,147 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2022-12-14 15:29:17,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:17,148 INFO L225 Difference]: With dead ends: 146 [2022-12-14 15:29:17,148 INFO L226 Difference]: Without dead ends: 144 [2022-12-14 15:29:17,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-12-14 15:29:17,149 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 112 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:17,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 257 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:29:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-12-14 15:29:17,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 112. [2022-12-14 15:29:17,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 105 states have internal predecessors, (123), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:17,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 131 transitions. [2022-12-14 15:29:17,162 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 131 transitions. Word has length 31 [2022-12-14 15:29:17,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:17,162 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 131 transitions. [2022-12-14 15:29:17,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:17,162 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 131 transitions. [2022-12-14 15:29:17,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 15:29:17,163 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:17,163 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:17,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-14 15:29:17,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:17,363 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:17,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:17,364 INFO L85 PathProgramCache]: Analyzing trace with hash -70370119, now seen corresponding path program 1 times [2022-12-14 15:29:17,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:17,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182096319] [2022-12-14 15:29:17,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:17,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:17,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:17,365 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:17,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-14 15:29:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:17,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 15:29:17,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:17,889 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:17,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:18,310 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:18,310 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:18,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182096319] [2022-12-14 15:29:18,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182096319] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:18,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:29:18,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2022-12-14 15:29:18,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332467992] [2022-12-14 15:29:18,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:29:18,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:29:18,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:18,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:29:18,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:29:18,311 INFO L87 Difference]: Start difference. First operand 112 states and 131 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:18,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:18,716 INFO L93 Difference]: Finished difference Result 143 states and 164 transitions. [2022-12-14 15:29:18,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:29:18,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-12-14 15:29:18,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:18,717 INFO L225 Difference]: With dead ends: 143 [2022-12-14 15:29:18,717 INFO L226 Difference]: Without dead ends: 141 [2022-12-14 15:29:18,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2022-12-14 15:29:18,718 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 139 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:18,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 280 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:29:18,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-14 15:29:18,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 110. [2022-12-14 15:29:18,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.3295454545454546) internal successors, (117), 103 states have internal predecessors, (117), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:18,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2022-12-14 15:29:18,724 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 34 [2022-12-14 15:29:18,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:18,724 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2022-12-14 15:29:18,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:18,724 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2022-12-14 15:29:18,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 15:29:18,725 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:18,725 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:18,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-14 15:29:18,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:18,926 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:18,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:18,926 INFO L85 PathProgramCache]: Analyzing trace with hash -774476048, now seen corresponding path program 1 times [2022-12-14 15:29:18,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:18,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675743152] [2022-12-14 15:29:18,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:18,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:18,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:18,928 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:18,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-14 15:29:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:18,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:29:18,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:19,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:29:19,043 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:19,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675743152] [2022-12-14 15:29:19,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675743152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:29:19,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:29:19,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 15:29:19,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602360026] [2022-12-14 15:29:19,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:29:19,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:29:19,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:19,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:29:19,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:29:19,045 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:29:19,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:19,147 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2022-12-14 15:29:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:29:19,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2022-12-14 15:29:19,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:19,148 INFO L225 Difference]: With dead ends: 110 [2022-12-14 15:29:19,148 INFO L226 Difference]: Without dead ends: 106 [2022-12-14 15:29:19,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:29:19,149 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 76 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:19,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 176 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:29:19,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-12-14 15:29:19,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-12-14 15:29:19,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 88 states have (on average 1.2840909090909092) internal successors, (113), 99 states have internal predecessors, (113), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:19,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 121 transitions. [2022-12-14 15:29:19,157 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 121 transitions. Word has length 43 [2022-12-14 15:29:19,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:19,158 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 121 transitions. [2022-12-14 15:29:19,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:29:19,158 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 121 transitions. [2022-12-14 15:29:19,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 15:29:19,159 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:19,159 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:19,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-14 15:29:19,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:19,360 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:19,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:19,362 INFO L85 PathProgramCache]: Analyzing trace with hash -934944786, now seen corresponding path program 1 times [2022-12-14 15:29:19,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:19,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613706303] [2022-12-14 15:29:19,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:19,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:19,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:19,368 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:19,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-14 15:29:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:19,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:29:19,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:19,529 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:19,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:19,626 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:19,626 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:19,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613706303] [2022-12-14 15:29:19,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613706303] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:19,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [462867801] [2022-12-14 15:29:19,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:19,627 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:19,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:29:19,628 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:29:19,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-12-14 15:29:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:19,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:29:19,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:19,738 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:19,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:19,796 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:19,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [462867801] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:19,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214920692] [2022-12-14 15:29:19,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:19,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:19,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:29:19,798 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:29:19,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-14 15:29:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:19,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:29:19,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:19,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:19,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214920692] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:19,936 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 15:29:19,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2022-12-14 15:29:19,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618567717] [2022-12-14 15:29:19,937 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 15:29:19,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:29:19,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:19,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:29:19,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:29:19,938 INFO L87 Difference]: Start difference. First operand 106 states and 121 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:20,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:20,171 INFO L93 Difference]: Finished difference Result 210 states and 236 transitions. [2022-12-14 15:29:20,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 15:29:20,172 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-12-14 15:29:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:20,173 INFO L225 Difference]: With dead ends: 210 [2022-12-14 15:29:20,173 INFO L226 Difference]: Without dead ends: 209 [2022-12-14 15:29:20,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-14 15:29:20,174 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 145 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:20,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 569 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:29:20,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-12-14 15:29:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 119. [2022-12-14 15:29:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 101 states have (on average 1.2772277227722773) internal successors, (129), 112 states have internal predecessors, (129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2022-12-14 15:29:20,182 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 43 [2022-12-14 15:29:20,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:20,183 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2022-12-14 15:29:20,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:20,183 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2022-12-14 15:29:20,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 15:29:20,184 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:20,184 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:20,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-14 15:29:20,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-14 15:29:20,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2022-12-14 15:29:20,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:20,786 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:20,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:20,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1761046379, now seen corresponding path program 1 times [2022-12-14 15:29:20,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:20,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207450559] [2022-12-14 15:29:20,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:20,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:20,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:20,794 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:20,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-12-14 15:29:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:20,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 15:29:20,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:21,407 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:21,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:21,521 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:21,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207450559] [2022-12-14 15:29:21,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207450559] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:21,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1865856999] [2022-12-14 15:29:21,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:21,521 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:21,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:29:21,522 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:29:21,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-12-14 15:29:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:21,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 15:29:21,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:21,853 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:21,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:21,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1865856999] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:21,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346954646] [2022-12-14 15:29:21,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:21,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:21,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:29:21,894 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:29:21,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-14 15:29:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:21,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 15:29:21,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:22,216 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:29:22,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:22,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346954646] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:22,248 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:29:22,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 10] total 20 [2022-12-14 15:29:22,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441101212] [2022-12-14 15:29:22,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:29:22,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 15:29:22,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:22,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 15:29:22,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2022-12-14 15:29:22,250 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand has 21 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 19 states have internal predecessors, (62), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-12-14 15:29:23,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:23,195 INFO L93 Difference]: Finished difference Result 149 states and 169 transitions. [2022-12-14 15:29:23,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 15:29:23,195 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 19 states have internal predecessors, (62), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 44 [2022-12-14 15:29:23,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:23,197 INFO L225 Difference]: With dead ends: 149 [2022-12-14 15:29:23,197 INFO L226 Difference]: Without dead ends: 143 [2022-12-14 15:29:23,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=830, Unknown=0, NotChecked=0, Total=992 [2022-12-14 15:29:23,198 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 255 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:23,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 446 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 15:29:23,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-12-14 15:29:23,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 140. [2022-12-14 15:29:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 120 states have (on average 1.25) internal successors, (150), 131 states have internal predecessors, (150), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 15:29:23,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 162 transitions. [2022-12-14 15:29:23,204 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 162 transitions. Word has length 44 [2022-12-14 15:29:23,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:23,204 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 162 transitions. [2022-12-14 15:29:23,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 19 states have internal predecessors, (62), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-12-14 15:29:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 162 transitions. [2022-12-14 15:29:23,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 15:29:23,204 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:23,205 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:23,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2022-12-14 15:29:23,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-12-14 15:29:23,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-14 15:29:23,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:23,807 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:23,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:23,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1902963730, now seen corresponding path program 1 times [2022-12-14 15:29:23,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:23,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95074512] [2022-12-14 15:29:23,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:23,809 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:23,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:23,810 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:23,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-12-14 15:29:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:23,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 15:29:23,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:29:24,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:24,291 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:24,291 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:24,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95074512] [2022-12-14 15:29:24,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95074512] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:24,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1225775782] [2022-12-14 15:29:24,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:24,291 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:24,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:29:24,292 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:29:24,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-12-14 15:29:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:24,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 15:29:24,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:29:24,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:24,572 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:24,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1225775782] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:24,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605341725] [2022-12-14 15:29:24,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:24,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:24,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:29:24,574 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:29:24,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-14 15:29:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:24,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 15:29:24,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:29:24,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:24,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605341725] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:24,840 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 15:29:24,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 9, 6, 9, 6] total 14 [2022-12-14 15:29:24,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420772814] [2022-12-14 15:29:24,841 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 15:29:24,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 15:29:24,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:24,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 15:29:24,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-12-14 15:29:24,842 INFO L87 Difference]: Start difference. First operand 140 states and 162 transitions. Second operand has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 15:29:25,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:25,958 INFO L93 Difference]: Finished difference Result 284 states and 319 transitions. [2022-12-14 15:29:25,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 15:29:25,958 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2022-12-14 15:29:25,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:25,960 INFO L225 Difference]: With dead ends: 284 [2022-12-14 15:29:25,960 INFO L226 Difference]: Without dead ends: 282 [2022-12-14 15:29:25,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2022-12-14 15:29:25,961 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 559 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:25,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 995 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 15:29:25,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-12-14 15:29:25,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 157. [2022-12-14 15:29:25,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.2318840579710144) internal successors, (170), 148 states have internal predecessors, (170), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 15:29:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 182 transitions. [2022-12-14 15:29:25,973 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 182 transitions. Word has length 47 [2022-12-14 15:29:25,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:25,973 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 182 transitions. [2022-12-14 15:29:25,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 15:29:25,973 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 182 transitions. [2022-12-14 15:29:25,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 15:29:25,973 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:25,974 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:25,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-12-14 15:29:26,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-14 15:29:26,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2022-12-14 15:29:26,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:26,576 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:26,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:26,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1335262495, now seen corresponding path program 1 times [2022-12-14 15:29:26,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:26,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724235107] [2022-12-14 15:29:26,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:26,579 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:26,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:26,580 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:26,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-12-14 15:29:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:26,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 15:29:26,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:27,189 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:29:27,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:27,702 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:27,702 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:27,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724235107] [2022-12-14 15:29:27,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724235107] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:27,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [481161648] [2022-12-14 15:29:27,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:27,703 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:27,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:29:27,703 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:29:27,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-12-14 15:29:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:27,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 15:29:27,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:29:28,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:28,253 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:28,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [481161648] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:28,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100475443] [2022-12-14 15:29:28,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:28,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:28,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:29:28,255 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:29:28,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-14 15:29:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:28,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-14 15:29:28,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:28,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:28,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100475443] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:28,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 15:29:28,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 13, 9, 13, 9] total 21 [2022-12-14 15:29:28,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646509401] [2022-12-14 15:29:28,850 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 15:29:28,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-14 15:29:28,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:28,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-14 15:29:28,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2022-12-14 15:29:28,851 INFO L87 Difference]: Start difference. First operand 157 states and 182 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2022-12-14 15:29:30,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:30,995 INFO L93 Difference]: Finished difference Result 196 states and 224 transitions. [2022-12-14 15:29:30,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-14 15:29:30,995 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 57 [2022-12-14 15:29:30,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:30,996 INFO L225 Difference]: With dead ends: 196 [2022-12-14 15:29:30,996 INFO L226 Difference]: Without dead ends: 170 [2022-12-14 15:29:30,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 314 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=346, Invalid=1546, Unknown=0, NotChecked=0, Total=1892 [2022-12-14 15:29:30,997 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 456 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:30,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 413 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 15:29:30,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-12-14 15:29:31,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 157. [2022-12-14 15:29:31,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.2391304347826086) internal successors, (171), 148 states have internal predecessors, (171), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 15:29:31,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 183 transitions. [2022-12-14 15:29:31,007 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 183 transitions. Word has length 57 [2022-12-14 15:29:31,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:31,007 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 183 transitions. [2022-12-14 15:29:31,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2022-12-14 15:29:31,007 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 183 transitions. [2022-12-14 15:29:31,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 15:29:31,008 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:31,008 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:31,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2022-12-14 15:29:31,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-12-14 15:29:31,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-12-14 15:29:31,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:31,611 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:31,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:31,612 INFO L85 PathProgramCache]: Analyzing trace with hash -119718763, now seen corresponding path program 2 times [2022-12-14 15:29:31,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:31,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844551008] [2022-12-14 15:29:31,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 15:29:31,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:31,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:31,613 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:31,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-12-14 15:29:31,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 15:29:31,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:31,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 15:29:31,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:32,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:32,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:32,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844551008] [2022-12-14 15:29:32,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844551008] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:32,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [376838737] [2022-12-14 15:29:32,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 15:29:32,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:32,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:29:32,510 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:29:32,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2022-12-14 15:29:32,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 15:29:32,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:32,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 15:29:32,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:32,972 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:32,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:33,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [376838737] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:33,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710291627] [2022-12-14 15:29:33,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 15:29:33,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:33,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:29:33,006 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:29:33,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-12-14 15:29:33,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 15:29:33,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:33,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 15:29:33,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:33,388 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:33,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:33,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710291627] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:33,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:29:33,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 15 [2022-12-14 15:29:33,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827742340] [2022-12-14 15:29:33,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:29:33,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 15:29:33,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:33,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 15:29:33,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-12-14 15:29:33,422 INFO L87 Difference]: Start difference. First operand 157 states and 183 transitions. Second operand has 16 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 15 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:29:34,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:34,875 INFO L93 Difference]: Finished difference Result 167 states and 188 transitions. [2022-12-14 15:29:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 15:29:34,876 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 15 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2022-12-14 15:29:34,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:34,877 INFO L225 Difference]: With dead ends: 167 [2022-12-14 15:29:34,877 INFO L226 Difference]: Without dead ends: 151 [2022-12-14 15:29:34,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 163 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=120, Invalid=692, Unknown=0, NotChecked=0, Total=812 [2022-12-14 15:29:34,878 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 306 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:34,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 468 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 15:29:34,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-12-14 15:29:34,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 150. [2022-12-14 15:29:34,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 132 states have (on average 1.2121212121212122) internal successors, (160), 142 states have internal predecessors, (160), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 15:29:34,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 170 transitions. [2022-12-14 15:29:34,885 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 170 transitions. Word has length 58 [2022-12-14 15:29:34,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:34,885 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 170 transitions. [2022-12-14 15:29:34,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 15 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:29:34,886 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 170 transitions. [2022-12-14 15:29:34,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 15:29:34,886 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:34,886 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:34,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-12-14 15:29:35,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2022-12-14 15:29:35,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2022-12-14 15:29:35,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:35,489 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:35,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:35,490 INFO L85 PathProgramCache]: Analyzing trace with hash 914388727, now seen corresponding path program 1 times [2022-12-14 15:29:35,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:35,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951733685] [2022-12-14 15:29:35,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:35,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:35,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:35,494 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:35,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-12-14 15:29:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:35,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 15:29:35,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:36,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:36,414 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:36,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951733685] [2022-12-14 15:29:36,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951733685] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:36,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [245595430] [2022-12-14 15:29:36,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:36,414 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:36,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:29:36,415 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:29:36,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2022-12-14 15:29:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:36,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 15:29:36,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:36,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:36,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [245595430] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:36,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068563532] [2022-12-14 15:29:36,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:29:36,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:36,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:29:36,895 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:29:36,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-12-14 15:29:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:29:36,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 15:29:36,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:37,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:37,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068563532] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:37,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:29:37,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 16 [2022-12-14 15:29:37,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035907140] [2022-12-14 15:29:37,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:29:37,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 15:29:37,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:37,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 15:29:37,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-12-14 15:29:37,316 INFO L87 Difference]: Start difference. First operand 150 states and 170 transitions. Second operand has 17 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:29:38,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:38,746 INFO L93 Difference]: Finished difference Result 151 states and 170 transitions. [2022-12-14 15:29:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 15:29:38,747 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 60 [2022-12-14 15:29:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:38,747 INFO L225 Difference]: With dead ends: 151 [2022-12-14 15:29:38,747 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 15:29:38,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=136, Invalid=794, Unknown=0, NotChecked=0, Total=930 [2022-12-14 15:29:38,748 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 224 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:38,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 591 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 15:29:38,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 15:29:38,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-12-14 15:29:38,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 123 states have (on average 1.2032520325203253) internal successors, (148), 133 states have internal predecessors, (148), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:38,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 156 transitions. [2022-12-14 15:29:38,757 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 156 transitions. Word has length 60 [2022-12-14 15:29:38,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:38,757 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 156 transitions. [2022-12-14 15:29:38,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:29:38,757 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 156 transitions. [2022-12-14 15:29:38,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 15:29:38,758 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:38,758 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:38,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2022-12-14 15:29:38,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-12-14 15:29:39,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-12-14 15:29:39,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:39,360 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:39,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:39,361 INFO L85 PathProgramCache]: Analyzing trace with hash -971524033, now seen corresponding path program 3 times [2022-12-14 15:29:39,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:39,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176630751] [2022-12-14 15:29:39,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:29:39,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:39,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:39,367 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:39,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-12-14 15:29:39,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 15:29:39,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:39,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 15:29:39,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:39,582 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-14 15:29:39,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:39,706 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:39,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176630751] [2022-12-14 15:29:39,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176630751] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:39,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1367255581] [2022-12-14 15:29:39,706 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:29:39,706 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:39,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:29:39,707 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:29:39,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2022-12-14 15:29:39,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 15:29:39,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:39,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 15:29:39,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:39,894 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-14 15:29:39,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:39,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1367255581] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:39,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610659338] [2022-12-14 15:29:39,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:29:39,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:39,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:29:39,933 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:29:39,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-12-14 15:29:39,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 15:29:39,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:39,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 15:29:39,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:40,082 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-14 15:29:40,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:40,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610659338] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:40,116 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:29:40,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2022-12-14 15:29:40,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194620575] [2022-12-14 15:29:40,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:29:40,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 15:29:40,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:40,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 15:29:40,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 15:29:40,117 INFO L87 Difference]: Start difference. First operand 140 states and 156 transitions. Second operand has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:29:40,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:40,556 INFO L93 Difference]: Finished difference Result 140 states and 156 transitions. [2022-12-14 15:29:40,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 15:29:40,556 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 72 [2022-12-14 15:29:40,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:40,557 INFO L225 Difference]: With dead ends: 140 [2022-12-14 15:29:40,557 INFO L226 Difference]: Without dead ends: 137 [2022-12-14 15:29:40,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-12-14 15:29:40,558 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 125 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:40,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 154 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:29:40,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-12-14 15:29:40,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-12-14 15:29:40,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 123 states have (on average 1.170731707317073) internal successors, (144), 130 states have internal predecessors, (144), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 152 transitions. [2022-12-14 15:29:40,563 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 152 transitions. Word has length 72 [2022-12-14 15:29:40,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:40,563 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 152 transitions. [2022-12-14 15:29:40,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:29:40,563 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 152 transitions. [2022-12-14 15:29:40,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 15:29:40,564 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:40,564 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:40,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-12-14 15:29:40,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2022-12-14 15:29:40,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-12-14 15:29:41,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:41,165 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:41,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:41,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1651087662, now seen corresponding path program 2 times [2022-12-14 15:29:41,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:41,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187114169] [2022-12-14 15:29:41,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 15:29:41,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:41,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:41,171 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:41,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-12-14 15:29:41,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 15:29:41,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:41,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 15:29:41,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:41,324 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-12-14 15:29:41,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:29:41,324 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:41,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187114169] [2022-12-14 15:29:41,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187114169] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:29:41,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:29:41,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:29:41,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760188584] [2022-12-14 15:29:41,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:29:41,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:29:41,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:41,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:29:41,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:29:41,326 INFO L87 Difference]: Start difference. First operand 137 states and 152 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:41,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:41,392 INFO L93 Difference]: Finished difference Result 137 states and 152 transitions. [2022-12-14 15:29:41,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:29:41,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 72 [2022-12-14 15:29:41,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:41,393 INFO L225 Difference]: With dead ends: 137 [2022-12-14 15:29:41,393 INFO L226 Difference]: Without dead ends: 136 [2022-12-14 15:29:41,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:29:41,393 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 71 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:41,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 163 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:29:41,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-14 15:29:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-12-14 15:29:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 123 states have (on average 1.146341463414634) internal successors, (141), 129 states have internal predecessors, (141), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:41,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 149 transitions. [2022-12-14 15:29:41,398 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 149 transitions. Word has length 72 [2022-12-14 15:29:41,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:41,399 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 149 transitions. [2022-12-14 15:29:41,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:29:41,399 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 149 transitions. [2022-12-14 15:29:41,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 15:29:41,399 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:41,399 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:41,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2022-12-14 15:29:41,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:41,600 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:41,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:41,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1626689503, now seen corresponding path program 2 times [2022-12-14 15:29:41,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:41,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603910899] [2022-12-14 15:29:41,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 15:29:41,603 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:41,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:41,605 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:41,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-12-14 15:29:41,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 15:29:41,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:41,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 15:29:41,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:42,740 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:42,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:42,889 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:42,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603910899] [2022-12-14 15:29:42,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603910899] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:42,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [305983644] [2022-12-14 15:29:42,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 15:29:42,889 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:42,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:29:42,890 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:29:42,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2022-12-14 15:29:43,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 15:29:43,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:43,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 15:29:43,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:43,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:43,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [305983644] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:43,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446174430] [2022-12-14 15:29:43,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 15:29:43,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:43,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:29:43,528 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:29:43,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-12-14 15:29:43,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 15:29:43,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:43,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 15:29:43,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 15:29:43,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:44,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446174430] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:29:44,015 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:29:44,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 18 [2022-12-14 15:29:44,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076518589] [2022-12-14 15:29:44,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:29:44,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 15:29:44,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:44,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 15:29:44,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2022-12-14 15:29:44,016 INFO L87 Difference]: Start difference. First operand 136 states and 149 transitions. Second operand has 19 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:29:45,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:29:45,825 INFO L93 Difference]: Finished difference Result 167 states and 182 transitions. [2022-12-14 15:29:45,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 15:29:45,826 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 74 [2022-12-14 15:29:45,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:29:45,826 INFO L225 Difference]: With dead ends: 167 [2022-12-14 15:29:45,826 INFO L226 Difference]: Without dead ends: 136 [2022-12-14 15:29:45,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=152, Invalid=1038, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 15:29:45,827 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 199 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:29:45,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 631 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 15:29:45,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-14 15:29:45,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-12-14 15:29:45,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 123 states have (on average 1.1219512195121952) internal successors, (138), 129 states have internal predecessors, (138), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:29:45,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 146 transitions. [2022-12-14 15:29:45,832 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 146 transitions. Word has length 74 [2022-12-14 15:29:45,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:29:45,832 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 146 transitions. [2022-12-14 15:29:45,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:29:45,832 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 146 transitions. [2022-12-14 15:29:45,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 15:29:45,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:29:45,833 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:29:45,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-12-14 15:29:46,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-12-14 15:29:46,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2022-12-14 15:29:46,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:46,435 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:29:46,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:29:46,436 INFO L85 PathProgramCache]: Analyzing trace with hash 2054976816, now seen corresponding path program 2 times [2022-12-14 15:29:46,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:29:46,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045593691] [2022-12-14 15:29:46,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 15:29:46,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:29:46,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:29:46,440 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:29:46,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-12-14 15:29:46,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 15:29:46,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:46,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 15:29:46,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:47,416 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-12-14 15:29:47,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-12-14 15:29:48,637 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:29:48,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045593691] [2022-12-14 15:29:48,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045593691] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:48,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1106885056] [2022-12-14 15:29:48,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 15:29:48,638 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:29:48,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:29:48,639 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:29:48,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2022-12-14 15:29:48,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 15:29:48,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:48,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 15:29:48,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:49,395 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:49,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:50,329 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:50,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1106885056] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:50,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763939496] [2022-12-14 15:29:50,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 15:29:50,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:29:50,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:29:50,330 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:29:50,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-12-14 15:29:50,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 15:29:50,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:29:50,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 15:29:50,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:29:50,473 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:50,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:29:50,657 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:29:50,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763939496] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:29:50,657 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 15:29:50,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11, 11, 11, 11] total 35 [2022-12-14 15:29:50,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119270809] [2022-12-14 15:29:50,657 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 15:29:50,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-12-14 15:29:50,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:29:50,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-12-14 15:29:50,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1090, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 15:29:50,658 INFO L87 Difference]: Start difference. First operand 136 states and 146 transitions. Second operand has 36 states, 35 states have (on average 5.685714285714286) internal successors, (199), 34 states have internal predecessors, (199), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 15:29:55,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:30:03,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:30:03,374 INFO L93 Difference]: Finished difference Result 231 states and 248 transitions. [2022-12-14 15:30:03,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 15:30:03,375 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 5.685714285714286) internal successors, (199), 34 states have internal predecessors, (199), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2022-12-14 15:30:03,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:30:03,376 INFO L225 Difference]: With dead ends: 231 [2022-12-14 15:30:03,376 INFO L226 Difference]: Without dead ends: 229 [2022-12-14 15:30:03,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=617, Invalid=2353, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 15:30:03,377 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 662 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1840 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:30:03,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1840 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-12-14 15:30:03,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-12-14 15:30:03,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 114. [2022-12-14 15:30:03,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 103 states have (on average 1.0776699029126213) internal successors, (111), 107 states have internal predecessors, (111), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:30:03,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2022-12-14 15:30:03,384 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 119 transitions. Word has length 85 [2022-12-14 15:30:03,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:30:03,384 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 119 transitions. [2022-12-14 15:30:03,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.685714285714286) internal successors, (199), 34 states have internal predecessors, (199), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 15:30:03,384 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 119 transitions. [2022-12-14 15:30:03,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 15:30:03,384 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:30:03,385 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:30:03,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2022-12-14 15:30:03,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2022-12-14 15:30:03,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-12-14 15:30:03,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:30:03,987 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-12-14 15:30:03,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:30:03,988 INFO L85 PathProgramCache]: Analyzing trace with hash -423847989, now seen corresponding path program 3 times [2022-12-14 15:30:03,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:30:03,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562847818] [2022-12-14 15:30:03,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:30:03,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:30:03,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:30:03,994 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:30:03,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-12-14 15:30:04,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 15:30:04,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:30:04,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 15:30:04,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:30:05,645 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-12-14 15:30:05,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:30:05,934 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:30:05,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562847818] [2022-12-14 15:30:05,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562847818] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:30:05,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1374679040] [2022-12-14 15:30:05,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:30:05,934 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 15:30:05,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 15:30:05,935 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 15:30:05,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2022-12-14 15:30:06,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 15:30:06,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:30:06,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 15:30:06,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:30:16,664 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 15:30:16,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:30:17,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1374679040] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:30:17,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059402363] [2022-12-14 15:30:17,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:30:17,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:30:17,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:30:17,185 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:30:17,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b8e62f0-b870-4e33-82d5-6a7383331821/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-12-14 15:30:17,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 15:30:17,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:30:17,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 15:30:17,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:30:51,978 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 15:30:51,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:30:52,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059402363] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:30:52,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:30:52,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 20] total 41 [2022-12-14 15:30:52,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160330345] [2022-12-14 15:30:52,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:30:52,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-12-14 15:30:52,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:30:52,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-12-14 15:30:52,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1914, Unknown=12, NotChecked=0, Total=2070 [2022-12-14 15:30:52,066 INFO L87 Difference]: Start difference. First operand 114 states and 119 transitions. Second operand has 42 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 41 states have internal predecessors, (127), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-14 15:31:01,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:31:03,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:31:10,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:31:12,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:31:14,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:31:52,549 WARN L233 SmtUtils]: Spent 35.54s on a formula simplification. DAG size of input: 64 DAG size of output: 43 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:31:54,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:32:01,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:32:04,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:32:06,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:32:13,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:32:28,632 WARN L233 SmtUtils]: Spent 11.49s on a formula simplification. DAG size of input: 83 DAG size of output: 47 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:32:30,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:32:39,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:32:41,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:32:43,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:32:45,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:32:56,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:32:58,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:33:06,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:33:08,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:33:10,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:33:12,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:33:34,190 WARN L233 SmtUtils]: Spent 12.79s on a formula simplification. DAG size of input: 64 DAG size of output: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:33:36,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:34:01,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:34:03,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:34:15,656 WARN L233 SmtUtils]: Spent 9.10s on a formula simplification. DAG size of input: 65 DAG size of output: 58 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:34:18,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:35:10,219 WARN L233 SmtUtils]: Spent 39.26s on a formula simplification. DAG size of input: 57 DAG size of output: 41 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:35:12,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:35:29,074 WARN L233 SmtUtils]: Spent 13.84s on a formula simplification. DAG size of input: 91 DAG size of output: 84 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:36:06,762 WARN L233 SmtUtils]: Spent 36.88s on a formula simplification. DAG size of input: 77 DAG size of output: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:37:04,851 WARN L233 SmtUtils]: Spent 56.65s on a formula simplification. DAG size of input: 103 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:37:07,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:37:09,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:37:21,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:37:30,355 WARN L233 SmtUtils]: Spent 7.78s on a formula simplification. DAG size of input: 80 DAG size of output: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:38:03,706 WARN L233 SmtUtils]: Spent 32.48s on a formula simplification. DAG size of input: 113 DAG size of output: 91 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:38:05,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:38:07,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:38:09,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:38:11,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:38:13,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:38:44,292 WARN L233 SmtUtils]: Spent 6.90s on a formula simplification. DAG size of input: 96 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:38:46,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:38:48,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:38:50,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:38:52,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:38:54,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:39:22,797 WARN L233 SmtUtils]: Spent 10.50s on a formula simplification. DAG size of input: 86 DAG size of output: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:39:24,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:39:26,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:39:30,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:40:09,265 WARN L233 SmtUtils]: Spent 19.10s on a formula simplification. DAG size of input: 102 DAG size of output: 90 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:40:11,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:40:13,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 15:40:15,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]