./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-lit/gj2007.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e210f4af0021f1e0c887bbfa24b18aad98424108efaad4cfc57802fd9fd5ce53 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:30:31,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:30:31,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:30:31,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:30:31,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:30:31,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:30:31,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:30:31,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:30:31,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:30:31,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:30:31,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:30:31,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:30:31,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:30:31,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:30:31,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:30:31,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:30:31,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:30:31,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:30:31,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:30:31,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:30:31,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:30:31,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:30:31,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:30:31,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:30:31,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:30:31,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:30:31,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:30:31,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:30:31,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:30:31,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:30:31,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:30:31,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:30:31,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:30:31,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:30:31,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:30:31,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:30:31,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:30:31,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:30:31,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:30:31,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:30:31,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:30:31,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 00:30:31,649 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:30:31,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:30:31,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:30:31,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:30:31,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:30:31,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:30:31,651 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:30:31,651 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:30:31,652 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:30:31,652 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:30:31,653 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:30:31,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:30:31,653 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:30:31,654 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:30:31,654 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:30:31,654 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:30:31,654 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:30:31,654 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:30:31,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:30:31,655 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:30:31,656 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:30:31,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:30:31,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:30:31,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:30:31,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:30:31,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:30:31,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:30:31,657 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:30:31,657 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:30:31,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:30:31,657 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:30:31,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:30:31,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:30:31,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:30:31,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:30:31,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:30:31,659 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:30:31,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:30:31,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:30:31,660 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:30:31,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:30:31,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:30:31,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:30:31,660 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_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e210f4af0021f1e0c887bbfa24b18aad98424108efaad4cfc57802fd9fd5ce53 [2022-11-22 00:30:32,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:30:32,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:30:32,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:30:32,042 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:30:32,043 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:30:32,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/loop-lit/gj2007.i [2022-11-22 00:30:35,157 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:30:35,343 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:30:35,344 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/sv-benchmarks/c/loop-lit/gj2007.i [2022-11-22 00:30:35,350 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/data/6194f31ae/f4951d497cac4cdeb967e91f9a4f30b7/FLAG9a78cee59 [2022-11-22 00:30:35,367 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/data/6194f31ae/f4951d497cac4cdeb967e91f9a4f30b7 [2022-11-22 00:30:35,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:30:35,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:30:35,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:30:35,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:30:35,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:30:35,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@504c8222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35, skipping insertion in model container [2022-11-22 00:30:35,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:30:35,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:30:35,545 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_a04f866f-2211-4afe-b84f-86b59e54c329/sv-benchmarks/c/loop-lit/gj2007.i[895,908] [2022-11-22 00:30:35,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:30:35,561 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:30:35,580 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_a04f866f-2211-4afe-b84f-86b59e54c329/sv-benchmarks/c/loop-lit/gj2007.i[895,908] [2022-11-22 00:30:35,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:30:35,597 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:30:35,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35 WrapperNode [2022-11-22 00:30:35,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:30:35,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:30:35,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:30:35,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:30:35,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,634 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-11-22 00:30:35,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:30:35,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:30:35,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:30:35,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:30:35,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,653 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:30:35,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:30:35,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:30:35,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:30:35,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (1/1) ... [2022-11-22 00:30:35,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:30:35,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:35,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:30:35,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:30:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:30:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:30:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:30:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:30:35,811 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:30:35,813 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:30:35,922 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:30:35,954 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:30:35,954 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:30:35,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:30:35 BoogieIcfgContainer [2022-11-22 00:30:35,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:30:35,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:30:35,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:30:35,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:30:35,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:30:35" (1/3) ... [2022-11-22 00:30:35,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259c79fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:30:35, skipping insertion in model container [2022-11-22 00:30:35,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:30:35" (2/3) ... [2022-11-22 00:30:35,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259c79fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:30:35, skipping insertion in model container [2022-11-22 00:30:35,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:30:35" (3/3) ... [2022-11-22 00:30:35,965 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007.i [2022-11-22 00:30:35,983 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:30:35,983 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 00:30:36,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:30:36,045 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;@560f4859, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:30:36,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-22 00:30:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:36,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:30:36,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:36,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:30:36,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:36,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:36,064 INFO L85 PathProgramCache]: Analyzing trace with hash 2394492, now seen corresponding path program 1 times [2022-11-22 00:30:36,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:36,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691890259] [2022-11-22 00:30:36,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:36,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:36,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:36,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:36,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691890259] [2022-11-22 00:30:36,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691890259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:36,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:30:36,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:30:36,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86876992] [2022-11-22 00:30:36,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:36,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:30:36,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:36,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:30:36,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:30:36,329 INFO L87 Difference]: Start difference. First operand has 16 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:36,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:36,457 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-11-22 00:30:36,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:30:36,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 00:30:36,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:36,469 INFO L225 Difference]: With dead ends: 35 [2022-11-22 00:30:36,470 INFO L226 Difference]: Without dead ends: 19 [2022-11-22 00:30:36,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:30:36,477 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:36,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:30:36,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-22 00:30:36,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-22 00:30:36,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:36,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-22 00:30:36,521 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 4 [2022-11-22 00:30:36,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:36,522 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-22 00:30:36,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:36,523 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-22 00:30:36,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 00:30:36,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:36,523 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:36,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:30:36,524 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:36,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:36,526 INFO L85 PathProgramCache]: Analyzing trace with hash -720356169, now seen corresponding path program 1 times [2022-11-22 00:30:36,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:36,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001775468] [2022-11-22 00:30:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:36,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:36,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:36,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001775468] [2022-11-22 00:30:36,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001775468] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:36,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289045957] [2022-11-22 00:30:36,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:36,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:36,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:36,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:36,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:30:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:36,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:30:36,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:36,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:30:36,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:30:36,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289045957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:36,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:30:36,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-11-22 00:30:36,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678599384] [2022-11-22 00:30:36,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:36,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:30:36,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:36,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:30:36,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:36,776 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:36,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:36,809 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-22 00:30:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:30:36,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 00:30:36,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:36,819 INFO L225 Difference]: With dead ends: 19 [2022-11-22 00:30:36,820 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 00:30:36,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:36,822 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:36,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 8 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:36,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 00:30:36,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-22 00:30:36,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:36,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-11-22 00:30:36,833 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 8 [2022-11-22 00:30:36,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:36,834 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-11-22 00:30:36,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-11-22 00:30:36,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 00:30:36,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:36,838 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:36,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:37,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:37,045 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:37,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:37,046 INFO L85 PathProgramCache]: Analyzing trace with hash -856204705, now seen corresponding path program 1 times [2022-11-22 00:30:37,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:37,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062512093] [2022-11-22 00:30:37,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:37,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:37,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:37,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:37,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062512093] [2022-11-22 00:30:37,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062512093] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:37,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289774785] [2022-11-22 00:30:37,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:37,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:37,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:37,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:37,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:30:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:37,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:30:37,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 00:30:37,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:30:37,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289774785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:37,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:30:37,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-11-22 00:30:37,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747113531] [2022-11-22 00:30:37,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:37,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:30:37,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:37,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:30:37,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:37,233 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:37,259 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-11-22 00:30:37,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:30:37,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 00:30:37,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:37,261 INFO L225 Difference]: With dead ends: 30 [2022-11-22 00:30:37,261 INFO L226 Difference]: Without dead ends: 18 [2022-11-22 00:30:37,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:37,263 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:37,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:37,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-22 00:30:37,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-22 00:30:37,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:37,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-22 00:30:37,269 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2022-11-22 00:30:37,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:37,270 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-22 00:30:37,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:37,271 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-22 00:30:37,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 00:30:37,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:37,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2022-11-22 00:30:37,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:37,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:37,478 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:37,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:37,479 INFO L85 PathProgramCache]: Analyzing trace with hash -856210663, now seen corresponding path program 1 times [2022-11-22 00:30:37,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:37,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654741046] [2022-11-22 00:30:37,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:37,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:37,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:37,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:37,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654741046] [2022-11-22 00:30:37,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654741046] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:37,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297374313] [2022-11-22 00:30:37,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:37,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:37,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:37,610 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:37,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 00:30:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:37,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 00:30:37,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:37,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:30:37,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297374313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:37,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:30:37,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-11-22 00:30:37,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627839148] [2022-11-22 00:30:37,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:37,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:30:37,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:37,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:30:37,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:37,793 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:37,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:37,852 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-11-22 00:30:37,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:30:37,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 00:30:37,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:37,854 INFO L225 Difference]: With dead ends: 18 [2022-11-22 00:30:37,854 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 00:30:37,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:37,856 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:37,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:30:37,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 00:30:37,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-22 00:30:37,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:37,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-22 00:30:37,871 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2022-11-22 00:30:37,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:37,872 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-22 00:30:37,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:37,872 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-22 00:30:37,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:30:37,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:37,873 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:37,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:38,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-22 00:30:38,076 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:38,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:38,077 INFO L85 PathProgramCache]: Analyzing trace with hash -772542023, now seen corresponding path program 1 times [2022-11-22 00:30:38,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:38,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930507800] [2022-11-22 00:30:38,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:38,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:38,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:38,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:38,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930507800] [2022-11-22 00:30:38,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930507800] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:38,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328680406] [2022-11-22 00:30:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:38,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:38,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:38,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:38,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 00:30:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:38,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:30:38,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:38,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 00:30:38,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:30:38,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328680406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:38,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:30:38,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2022-11-22 00:30:38,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991557690] [2022-11-22 00:30:38,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:38,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:30:38,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:38,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:30:38,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:38,338 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:38,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:38,372 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-11-22 00:30:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:30:38,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 00:30:38,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:38,374 INFO L225 Difference]: With dead ends: 20 [2022-11-22 00:30:38,374 INFO L226 Difference]: Without dead ends: 19 [2022-11-22 00:30:38,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:38,376 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:38,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:38,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-22 00:30:38,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-22 00:30:38,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:38,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-22 00:30:38,390 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 10 [2022-11-22 00:30:38,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:38,390 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-22 00:30:38,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:38,390 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-22 00:30:38,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 00:30:38,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:38,391 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:38,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:38,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:38,595 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:38,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:38,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1821001121, now seen corresponding path program 1 times [2022-11-22 00:30:38,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:38,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046278894] [2022-11-22 00:30:38,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:38,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:30:38,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:38,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046278894] [2022-11-22 00:30:38,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046278894] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:38,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773512320] [2022-11-22 00:30:38,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:38,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:38,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:38,683 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:38,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 00:30:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:38,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:30:38,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 00:30:38,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:30:38,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773512320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:30:38,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:30:38,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2022-11-22 00:30:38,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173839443] [2022-11-22 00:30:38,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:30:38,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:30:38,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:38,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:30:38,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:38,754 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:38,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:38,764 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-11-22 00:30:38,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:30:38,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 00:30:38,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:38,765 INFO L225 Difference]: With dead ends: 18 [2022-11-22 00:30:38,765 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 00:30:38,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:30:38,767 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:38,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:38,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 00:30:38,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-22 00:30:38,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:38,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-11-22 00:30:38,773 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2022-11-22 00:30:38,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:38,773 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-11-22 00:30:38,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:38,774 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-11-22 00:30:38,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 00:30:38,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:38,775 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:30:38,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-22 00:30:38,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:38,981 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:38,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:38,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1389469908, now seen corresponding path program 1 times [2022-11-22 00:30:38,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:38,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310327325] [2022-11-22 00:30:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:38,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:39,090 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 00:30:39,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:39,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310327325] [2022-11-22 00:30:39,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310327325] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:39,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341078052] [2022-11-22 00:30:39,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:39,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:39,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:39,092 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:39,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 00:30:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:39,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 00:30:39,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:39,174 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 00:30:39,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 00:30:39,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341078052] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:39,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1893555767] [2022-11-22 00:30:39,225 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:30:39,226 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:39,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:39,236 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:39,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:39,726 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:40,066 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '548#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-11-22 00:30:40,066 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:40,066 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:40,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-22 00:30:40,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129523014] [2022-11-22 00:30:40,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:40,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 00:30:40,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:40,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 00:30:40,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-22 00:30:40,069 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:40,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:40,129 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-11-22 00:30:40,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:30:40,130 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-22 00:30:40,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:40,131 INFO L225 Difference]: With dead ends: 39 [2022-11-22 00:30:40,131 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 00:30:40,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-22 00:30:40,132 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:40,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:30:40,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 00:30:40,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-22 00:30:40,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-11-22 00:30:40,140 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 16 [2022-11-22 00:30:40,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:40,140 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-11-22 00:30:40,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:40,141 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-11-22 00:30:40,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 00:30:40,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:40,141 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1] [2022-11-22 00:30:40,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:40,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:40,342 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:40,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:40,343 INFO L85 PathProgramCache]: Analyzing trace with hash 402175709, now seen corresponding path program 2 times [2022-11-22 00:30:40,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:40,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85200025] [2022-11-22 00:30:40,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:40,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:40,408 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-22 00:30:40,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:40,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85200025] [2022-11-22 00:30:40,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85200025] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:40,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591479393] [2022-11-22 00:30:40,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:30:40,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:40,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:40,411 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:40,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 00:30:40,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-22 00:30:40,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:30:40,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 00:30:40,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:40,516 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-22 00:30:40,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-22 00:30:40,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591479393] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:40,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2023616732] [2022-11-22 00:30:40,574 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:30:40,574 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:40,574 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:40,575 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:40,575 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:40,785 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:41,100 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '804#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-11-22 00:30:41,100 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:41,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:41,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2022-11-22 00:30:41,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126468628] [2022-11-22 00:30:41,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:41,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:30:41,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:41,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:30:41,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-22 00:30:41,102 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:41,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:41,124 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2022-11-22 00:30:41,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:30:41,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-22 00:30:41,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:41,126 INFO L225 Difference]: With dead ends: 48 [2022-11-22 00:30:41,126 INFO L226 Difference]: Without dead ends: 47 [2022-11-22 00:30:41,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-22 00:30:41,127 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:41,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 24 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:30:41,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-22 00:30:41,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-22 00:30:41,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 46 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:41,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2022-11-22 00:30:41,134 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 28 [2022-11-22 00:30:41,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:41,134 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2022-11-22 00:30:41,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:41,134 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2022-11-22 00:30:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-22 00:30:41,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:41,136 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1] [2022-11-22 00:30:41,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:41,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:41,352 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:41,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:41,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1734490250, now seen corresponding path program 3 times [2022-11-22 00:30:41,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:41,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029900167] [2022-11-22 00:30:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:41,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:41,473 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 40 proven. 32 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-22 00:30:41,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:41,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029900167] [2022-11-22 00:30:41,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029900167] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:41,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653869231] [2022-11-22 00:30:41,474 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 00:30:41,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:41,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:41,475 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:41,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 00:30:41,535 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 00:30:41,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:30:41,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 00:30:41,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:41,574 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 40 proven. 32 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-22 00:30:41,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:41,653 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 40 proven. 32 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-22 00:30:41,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653869231] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:41,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [668824790] [2022-11-22 00:30:41,656 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:30:41,656 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:41,656 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:41,656 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:41,657 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:41,857 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:42,152 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1207#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-11-22 00:30:42,152 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:42,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:42,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-22 00:30:42,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378023391] [2022-11-22 00:30:42,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:42,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 00:30:42,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:42,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 00:30:42,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2022-11-22 00:30:42,154 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:42,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:42,236 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2022-11-22 00:30:42,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 00:30:42,237 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-22 00:30:42,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:42,240 INFO L225 Difference]: With dead ends: 99 [2022-11-22 00:30:42,241 INFO L226 Difference]: Without dead ends: 71 [2022-11-22 00:30:42,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2022-11-22 00:30:42,244 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 30 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:42,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 15 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:30:42,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-22 00:30:42,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-22 00:30:42,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0285714285714285) internal successors, (72), 70 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:42,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2022-11-22 00:30:42,269 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 46 [2022-11-22 00:30:42,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:42,270 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2022-11-22 00:30:42,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2022-11-22 00:30:42,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-22 00:30:42,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:42,273 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 5, 5, 5, 4, 4, 1, 1] [2022-11-22 00:30:42,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-22 00:30:42,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-22 00:30:42,479 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:42,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:42,479 INFO L85 PathProgramCache]: Analyzing trace with hash 605257176, now seen corresponding path program 4 times [2022-11-22 00:30:42,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:42,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600191316] [2022-11-22 00:30:42,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:42,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 88 proven. 200 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-22 00:30:42,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:42,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600191316] [2022-11-22 00:30:42,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600191316] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:42,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259021941] [2022-11-22 00:30:42,778 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 00:30:42,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:42,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:42,783 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:42,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 00:30:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:42,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 00:30:42,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:42,949 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 88 proven. 200 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-22 00:30:42,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:43,225 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 88 proven. 200 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-22 00:30:43,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259021941] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:43,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1922204810] [2022-11-22 00:30:43,228 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:30:43,228 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:43,228 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:43,228 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:43,229 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:43,414 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:43,736 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1857#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-11-22 00:30:43,736 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:43,736 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:43,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-11-22 00:30:43,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525681452] [2022-11-22 00:30:43,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:43,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-22 00:30:43,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:43,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-22 00:30:43,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=670, Unknown=0, NotChecked=0, Total=992 [2022-11-22 00:30:43,738 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:43,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:43,885 INFO L93 Difference]: Finished difference Result 147 states and 160 transitions. [2022-11-22 00:30:43,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 00:30:43,885 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-11-22 00:30:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:43,886 INFO L225 Difference]: With dead ends: 147 [2022-11-22 00:30:43,886 INFO L226 Difference]: Without dead ends: 119 [2022-11-22 00:30:43,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=322, Invalid=670, Unknown=0, NotChecked=0, Total=992 [2022-11-22 00:30:43,888 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 66 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:43,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 12 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:30:43,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-22 00:30:43,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-11-22 00:30:43,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.0169491525423728) internal successors, (120), 118 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:43,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 120 transitions. [2022-11-22 00:30:43,897 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 120 transitions. Word has length 70 [2022-11-22 00:30:43,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:43,897 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 120 transitions. [2022-11-22 00:30:43,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:43,898 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 120 transitions. [2022-11-22 00:30:43,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 00:30:43,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:43,899 INFO L195 NwaCegarLoop]: trace histogram [27, 22, 22, 22, 5, 5, 5, 4, 4, 1, 1] [2022-11-22 00:30:43,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:44,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:44,105 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:44,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:44,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1701009564, now seen corresponding path program 5 times [2022-11-22 00:30:44,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:44,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836478726] [2022-11-22 00:30:44,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:44,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:44,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 184 proven. 968 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-22 00:30:44,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:44,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836478726] [2022-11-22 00:30:44,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836478726] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:44,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130768975] [2022-11-22 00:30:44,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:30:44,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:44,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:44,835 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:44,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 00:30:44,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-22 00:30:44,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:30:44,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 00:30:44,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:45,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 232 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2022-11-22 00:30:45,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:45,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 232 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2022-11-22 00:30:45,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130768975] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:45,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [189500343] [2022-11-22 00:30:45,500 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:30:45,501 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:45,501 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:45,501 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:45,502 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:45,714 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:46,167 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2925#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-11-22 00:30:46,167 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:46,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:46,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 5, 5] total 34 [2022-11-22 00:30:46,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601202241] [2022-11-22 00:30:46,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:46,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-22 00:30:46,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:46,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-22 00:30:46,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=1335, Unknown=0, NotChecked=0, Total=1722 [2022-11-22 00:30:46,170 INFO L87 Difference]: Start difference. First operand 119 states and 120 transitions. Second operand has 35 states, 35 states have (on average 4.685714285714286) internal successors, (164), 34 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:46,783 INFO L93 Difference]: Finished difference Result 189 states and 197 transitions. [2022-11-22 00:30:46,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-22 00:30:46,784 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.685714285714286) internal successors, (164), 34 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-11-22 00:30:46,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:46,785 INFO L225 Difference]: With dead ends: 189 [2022-11-22 00:30:46,785 INFO L226 Difference]: Without dead ends: 161 [2022-11-22 00:30:46,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1192, Invalid=2968, Unknown=0, NotChecked=0, Total=4160 [2022-11-22 00:30:46,788 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 277 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:46,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 47 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:30:46,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-22 00:30:46,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2022-11-22 00:30:46,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 1.0126582278481013) internal successors, (160), 158 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:46,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 160 transitions. [2022-11-22 00:30:46,799 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 160 transitions. Word has length 118 [2022-11-22 00:30:46,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:46,799 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 160 transitions. [2022-11-22 00:30:46,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.685714285714286) internal successors, (164), 34 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:46,800 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 160 transitions. [2022-11-22 00:30:46,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-22 00:30:46,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:46,802 INFO L195 NwaCegarLoop]: trace histogram [34, 23, 23, 23, 11, 11, 11, 10, 10, 1, 1] [2022-11-22 00:30:46,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:47,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:47,011 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:47,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:47,012 INFO L85 PathProgramCache]: Analyzing trace with hash -137410807, now seen corresponding path program 6 times [2022-11-22 00:30:47,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:47,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561285600] [2022-11-22 00:30:47,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:47,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:48,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1838 backedges. 480 proven. 1058 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-11-22 00:30:48,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:48,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561285600] [2022-11-22 00:30:48,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561285600] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:48,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624233955] [2022-11-22 00:30:48,045 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 00:30:48,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:48,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:48,046 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:48,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 00:30:48,144 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 00:30:48,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:30:48,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-22 00:30:48,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:48,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1838 backedges. 480 proven. 1058 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-11-22 00:30:48,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1838 backedges. 480 proven. 1058 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-11-22 00:30:49,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624233955] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:49,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [127685927] [2022-11-22 00:30:49,486 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:30:49,486 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:49,486 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:49,486 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:49,487 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:49,646 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:50,070 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4391#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-11-22 00:30:50,071 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:50,071 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:50,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 50 [2022-11-22 00:30:50,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615005592] [2022-11-22 00:30:50,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:50,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-11-22 00:30:50,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:50,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-11-22 00:30:50,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1297, Invalid=2009, Unknown=0, NotChecked=0, Total=3306 [2022-11-22 00:30:50,075 INFO L87 Difference]: Start difference. First operand 159 states and 160 transitions. Second operand has 51 states, 51 states have (on average 3.9607843137254903) internal successors, (202), 50 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:50,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:50,370 INFO L93 Difference]: Finished difference Result 323 states and 349 transitions. [2022-11-22 00:30:50,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-22 00:30:50,371 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 3.9607843137254903) internal successors, (202), 50 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2022-11-22 00:30:50,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:50,372 INFO L225 Difference]: With dead ends: 323 [2022-11-22 00:30:50,372 INFO L226 Difference]: Without dead ends: 259 [2022-11-22 00:30:50,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1297, Invalid=2009, Unknown=0, NotChecked=0, Total=3306 [2022-11-22 00:30:50,375 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 144 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:50,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 12 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:30:50,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-22 00:30:50,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2022-11-22 00:30:50,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.0077519379844961) internal successors, (260), 258 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:50,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 260 transitions. [2022-11-22 00:30:50,387 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 260 transitions. Word has length 158 [2022-11-22 00:30:50,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:50,388 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 260 transitions. [2022-11-22 00:30:50,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.9607843137254903) internal successors, (202), 50 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:50,389 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 260 transitions. [2022-11-22 00:30:50,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-22 00:30:50,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:50,391 INFO L195 NwaCegarLoop]: trace histogram [59, 48, 48, 48, 11, 11, 11, 10, 10, 1, 1] [2022-11-22 00:30:50,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:50,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:50,603 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:50,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:50,603 INFO L85 PathProgramCache]: Analyzing trace with hash -762402804, now seen corresponding path program 7 times [2022-11-22 00:30:50,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:50,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735824663] [2022-11-22 00:30:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:50,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:53,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5888 backedges. 980 proven. 4608 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-11-22 00:30:53,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:53,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735824663] [2022-11-22 00:30:53,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735824663] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:53,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533835727] [2022-11-22 00:30:53,039 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 00:30:53,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:53,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:53,041 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:53,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-22 00:30:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:53,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-22 00:30:53,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 5888 backedges. 980 proven. 4608 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-11-22 00:30:53,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5888 backedges. 980 proven. 4608 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-11-22 00:30:55,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533835727] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:55,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [10265552] [2022-11-22 00:30:55,157 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:30:55,157 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:55,157 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:55,157 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:55,158 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:55,346 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:55,869 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6703#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-11-22 00:30:55,870 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:55,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:55,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 52 [2022-11-22 00:30:55,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409475016] [2022-11-22 00:30:55,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:55,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-22 00:30:55,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:55,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-22 00:30:55,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1400, Invalid=2140, Unknown=0, NotChecked=0, Total=3540 [2022-11-22 00:30:55,875 INFO L87 Difference]: Start difference. First operand 259 states and 260 transitions. Second operand has 53 states, 53 states have (on average 4.018867924528302) internal successors, (213), 52 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:56,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:56,201 INFO L93 Difference]: Finished difference Result 331 states and 334 transitions. [2022-11-22 00:30:56,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-22 00:30:56,201 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 4.018867924528302) internal successors, (213), 52 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2022-11-22 00:30:56,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:56,204 INFO L225 Difference]: With dead ends: 331 [2022-11-22 00:30:56,204 INFO L226 Difference]: Without dead ends: 267 [2022-11-22 00:30:56,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 716 SyntacticMatches, 48 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1730 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1400, Invalid=2140, Unknown=0, NotChecked=0, Total=3540 [2022-11-22 00:30:56,212 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 100 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:56,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 21 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:30:56,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-11-22 00:30:56,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-11-22 00:30:56,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 266 states have (on average 1.0075187969924813) internal successors, (268), 266 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:56,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 268 transitions. [2022-11-22 00:30:56,222 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 268 transitions. Word has length 258 [2022-11-22 00:30:56,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:56,223 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 268 transitions. [2022-11-22 00:30:56,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 4.018867924528302) internal successors, (213), 52 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:56,223 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 268 transitions. [2022-11-22 00:30:56,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-22 00:30:56,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:56,227 INFO L195 NwaCegarLoop]: trace histogram [61, 50, 50, 50, 11, 11, 11, 10, 10, 1, 1] [2022-11-22 00:30:56,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-11-22 00:30:56,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-22 00:30:56,433 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:56,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:56,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2143616642, now seen corresponding path program 8 times [2022-11-22 00:30:56,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:56,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001525840] [2022-11-22 00:30:56,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:56,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 0 proven. 1320 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-22 00:30:56,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:56,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001525840] [2022-11-22 00:30:56,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001525840] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:56,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151052448] [2022-11-22 00:30:56,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:30:56,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:56,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:56,826 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:56,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-22 00:30:56,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-22 00:30:56,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:30:56,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 00:30:56,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:30:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 0 proven. 1320 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-22 00:30:57,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:30:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 0 proven. 1320 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-22 00:30:57,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151052448] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:30:57,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2133249229] [2022-11-22 00:30:57,860 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:30:57,860 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:30:57,860 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:30:57,861 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:30:57,861 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:30:58,001 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:30:58,340 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9054#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-11-22 00:30:58,340 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:30:58,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:30:58,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-11-22 00:30:58,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854514806] [2022-11-22 00:30:58,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:30:58,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 00:30:58,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:30:58,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 00:30:58,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=632, Unknown=0, NotChecked=0, Total=930 [2022-11-22 00:30:58,343 INFO L87 Difference]: Start difference. First operand 267 states and 268 transitions. Second operand has 24 states, 23 states have (on average 6.0) internal successors, (138), 23 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:58,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:30:58,432 INFO L93 Difference]: Finished difference Result 340 states and 352 transitions. [2022-11-22 00:30:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 00:30:58,433 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.0) internal successors, (138), 23 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2022-11-22 00:30:58,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:30:58,435 INFO L225 Difference]: With dead ends: 340 [2022-11-22 00:30:58,435 INFO L226 Difference]: Without dead ends: 339 [2022-11-22 00:30:58,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 778 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=298, Invalid=632, Unknown=0, NotChecked=0, Total=930 [2022-11-22 00:30:58,437 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 48 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:30:58,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 96 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:30:58,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-22 00:30:58,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2022-11-22 00:30:58,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 1.0059171597633136) internal successors, (340), 338 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:58,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 340 transitions. [2022-11-22 00:30:58,453 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 340 transitions. Word has length 266 [2022-11-22 00:30:58,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:30:58,454 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 340 transitions. [2022-11-22 00:30:58,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.0) internal successors, (138), 23 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:30:58,455 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 340 transitions. [2022-11-22 00:30:58,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-11-22 00:30:58,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:30:58,462 INFO L195 NwaCegarLoop]: trace histogram [73, 50, 50, 50, 23, 23, 23, 22, 22, 1, 1] [2022-11-22 00:30:58,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-22 00:30:58,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 00:30:58,668 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:30:58,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:30:58,669 INFO L85 PathProgramCache]: Analyzing trace with hash 952560230, now seen corresponding path program 9 times [2022-11-22 00:30:58,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:30:58,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389212129] [2022-11-22 00:30:58,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:30:58,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:30:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:30:59,728 INFO L134 CoverageAnalysis]: Checked inductivity of 8696 backedges. 0 proven. 3696 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-22 00:30:59,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:30:59,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389212129] [2022-11-22 00:30:59,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389212129] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:30:59,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451669784] [2022-11-22 00:30:59,729 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 00:30:59,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:30:59,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:30:59,731 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:30:59,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-22 00:30:59,878 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 00:30:59,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:30:59,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-22 00:30:59,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:31:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 8696 backedges. 0 proven. 3696 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-22 00:31:00,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:31:01,959 INFO L134 CoverageAnalysis]: Checked inductivity of 8696 backedges. 0 proven. 3696 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-22 00:31:01,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451669784] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:31:01,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [43018443] [2022-11-22 00:31:01,962 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:31:01,962 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:31:01,962 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:31:01,962 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:31:01,962 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:31:02,093 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:31:02,473 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11956#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-11-22 00:31:02,473 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:31:02,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:31:02,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2022-11-22 00:31:02,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332190994] [2022-11-22 00:31:02,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:31:02,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-22 00:31:02,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:02,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-22 00:31:02,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1150, Invalid=1820, Unknown=0, NotChecked=0, Total=2970 [2022-11-22 00:31:02,479 INFO L87 Difference]: Start difference. First operand 339 states and 340 transitions. Second operand has 48 states, 47 states have (on average 6.0) internal successors, (282), 47 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:02,646 INFO L93 Difference]: Finished difference Result 484 states and 508 transitions. [2022-11-22 00:31:02,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-22 00:31:02,647 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.0) internal successors, (282), 47 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 338 [2022-11-22 00:31:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:02,654 INFO L225 Difference]: With dead ends: 484 [2022-11-22 00:31:02,654 INFO L226 Difference]: Without dead ends: 483 [2022-11-22 00:31:02,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1035 GetRequests, 982 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1150, Invalid=1820, Unknown=0, NotChecked=0, Total=2970 [2022-11-22 00:31:02,656 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 87 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:02,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 192 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:31:02,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-11-22 00:31:02,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2022-11-22 00:31:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.004149377593361) internal successors, (484), 482 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:02,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 484 transitions. [2022-11-22 00:31:02,671 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 484 transitions. Word has length 338 [2022-11-22 00:31:02,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:02,672 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 484 transitions. [2022-11-22 00:31:02,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.0) internal successors, (282), 47 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:02,673 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 484 transitions. [2022-11-22 00:31:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-11-22 00:31:02,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:02,681 INFO L195 NwaCegarLoop]: trace histogram [97, 50, 50, 50, 47, 47, 47, 46, 46, 1, 1] [2022-11-22 00:31:02,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-22 00:31:02,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:02,887 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:31:02,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:02,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2107443666, now seen corresponding path program 10 times [2022-11-22 00:31:02,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:02,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624049820] [2022-11-22 00:31:02,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:02,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 16040 backedges. 0 proven. 11040 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-22 00:31:05,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:05,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624049820] [2022-11-22 00:31:05,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624049820] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:31:05,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825946264] [2022-11-22 00:31:05,764 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 00:31:05,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:05,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:31:05,765 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:31:05,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-22 00:31:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:05,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-22 00:31:05,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:31:06,667 INFO L134 CoverageAnalysis]: Checked inductivity of 16040 backedges. 0 proven. 11040 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-22 00:31:06,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:31:10,325 INFO L134 CoverageAnalysis]: Checked inductivity of 16040 backedges. 0 proven. 11040 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-22 00:31:10,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825946264] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:31:10,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [707234509] [2022-11-22 00:31:10,328 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:31:10,328 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:31:10,328 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:31:10,328 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:31:10,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:31:10,466 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:31:10,932 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16106#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-11-22 00:31:10,933 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:31:10,933 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:31:10,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2022-11-22 00:31:10,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32350180] [2022-11-22 00:31:10,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:31:10,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-22 00:31:10,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:10,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-22 00:31:10,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4582, Invalid=5924, Unknown=0, NotChecked=0, Total=10506 [2022-11-22 00:31:10,940 INFO L87 Difference]: Start difference. First operand 483 states and 484 transitions. Second operand has 96 states, 95 states have (on average 6.0) internal successors, (570), 95 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:11,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:11,443 INFO L93 Difference]: Finished difference Result 772 states and 820 transitions. [2022-11-22 00:31:11,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-22 00:31:11,443 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.0) internal successors, (570), 95 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 482 [2022-11-22 00:31:11,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:11,447 INFO L225 Difference]: With dead ends: 772 [2022-11-22 00:31:11,448 INFO L226 Difference]: Without dead ends: 771 [2022-11-22 00:31:11,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1491 GetRequests, 1390 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 978 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=4582, Invalid=5924, Unknown=0, NotChecked=0, Total=10506 [2022-11-22 00:31:11,453 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 156 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:11,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 384 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:31:11,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2022-11-22 00:31:11,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 771. [2022-11-22 00:31:11,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 770 states have (on average 1.0025974025974025) internal successors, (772), 770 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 772 transitions. [2022-11-22 00:31:11,476 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 772 transitions. Word has length 482 [2022-11-22 00:31:11,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:11,477 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 772 transitions. [2022-11-22 00:31:11,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.0) internal successors, (570), 95 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:11,477 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 772 transitions. [2022-11-22 00:31:11,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2022-11-22 00:31:11,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:11,501 INFO L195 NwaCegarLoop]: trace histogram [145, 95, 95, 95, 94, 94, 50, 50, 50, 1, 1] [2022-11-22 00:31:11,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-22 00:31:11,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 00:31:11,708 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:31:11,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:11,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1108615746, now seen corresponding path program 11 times [2022-11-22 00:31:11,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:11,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022636796] [2022-11-22 00:31:11,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:11,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 41096 backedges. 0 proven. 36096 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-22 00:31:21,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:21,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022636796] [2022-11-22 00:31:21,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022636796] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:31:21,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714933512] [2022-11-22 00:31:21,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:31:21,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:21,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:31:21,531 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:31:21,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-22 00:31:21,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 62 check-sat command(s) [2022-11-22 00:31:21,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:31:21,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-22 00:31:21,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:31:25,604 INFO L134 CoverageAnalysis]: Checked inductivity of 41096 backedges. 25932 proven. 0 refuted. 0 times theorem prover too weak. 15164 trivial. 0 not checked. [2022-11-22 00:31:25,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:31:25,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714933512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:25,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:31:25,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [95] total 148 [2022-11-22 00:31:25,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995355697] [2022-11-22 00:31:25,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:25,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-22 00:31:25,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:25,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-22 00:31:25,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6033, Invalid=15723, Unknown=0, NotChecked=0, Total=21756 [2022-11-22 00:31:25,613 INFO L87 Difference]: Start difference. First operand 771 states and 772 transitions. Second operand has 53 states, 53 states have (on average 5.9245283018867925) internal successors, (314), 53 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:26,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:26,229 INFO L93 Difference]: Finished difference Result 771 states and 772 transitions. [2022-11-22 00:31:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-22 00:31:26,229 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 5.9245283018867925) internal successors, (314), 53 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 770 [2022-11-22 00:31:26,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:26,231 INFO L225 Difference]: With dead ends: 771 [2022-11-22 00:31:26,231 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:31:26,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 718 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4794 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=6033, Invalid=15723, Unknown=0, NotChecked=0, Total=21756 [2022-11-22 00:31:26,235 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 3 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:26,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 373 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 00:31:26,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:31:26,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:31:26,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:26,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:31:26,237 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 770 [2022-11-22 00:31:26,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:26,237 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:31:26,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.9245283018867925) internal successors, (314), 53 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:26,238 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:31:26,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:31:26,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-22 00:31:26,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-22 00:31:26,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-22 00:31:26,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-22 00:31:26,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-22 00:31:26,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-22 00:31:26,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-22 00:31:26,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-22 00:31:26,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 00:31:28,026 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-22 00:31:28,026 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 00:31:28,026 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-11-22 00:31:28,026 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-22 00:31:28,026 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-11-22 00:31:28,026 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-22 00:31:28,027 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-11-22 00:31:28,027 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-22 00:31:28,027 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-22 00:31:28,027 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-22 00:31:28,027 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-11-22 00:31:28,027 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-22 00:31:28,027 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 00:31:28,027 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-22 00:31:28,027 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 33) no Hoare annotation was computed. [2022-11-22 00:31:28,029 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 27 34) the Hoare annotation is: (let ((.cse1 (<= |ULTIMATE.start_main_~y~0#1| 50)) (.cse0 (<= 50 |ULTIMATE.start_main_~y~0#1|))) (or (and (<= |ULTIMATE.start_main_~y~0#1| 65) (<= 65 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 59) .cse0 (<= 59 |ULTIMATE.start_main_~x~0#1|)) (and (<= 80 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 80) .cse0) (and (<= 90 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 90)) (and (<= 60 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 60) .cse0) (and (<= 83 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 83) .cse0) (and (<= 94 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 94) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 53) .cse0 (<= 53 |ULTIMATE.start_main_~x~0#1|)) (and (<= 72 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 72)) (and (<= 95 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 95) .cse0) (and (<= 78 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 78) .cse0) (and (<= 64 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 64) .cse0) (and (<= 98 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483602) .cse0) (and (= |ULTIMATE.start_main_~x~0#1| 0) .cse1 .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 79) .cse0 (<= 79 |ULTIMATE.start_main_~x~0#1|)) (and (<= 100 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483604) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 76) (<= 76 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 97 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483601) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 96) (<= 96 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 73) .cse0 (<= 73 |ULTIMATE.start_main_~x~0#1|)) (and (<= 70 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 70) .cse0) (and (<= 91 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 91) .cse0) (and (<= 63 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 63) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 75) (<= 75 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 86) (<= 86 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 87 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 87) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 56) (<= 56 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 88) (<= 88 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 55) (<= 55 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 1 |ULTIMATE.start_main_~x~0#1|) .cse1 .cse0) (and (<= 82 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 82) .cse0) (and (<= 62 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 62)) (and (<= |ULTIMATE.start_main_~y~0#1| 89) (<= 89 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 58) (<= 58 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 93 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 93) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 66) (<= 66 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 77) .cse0 (<= 77 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~y~0#1| 84) (<= 84 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 61 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 61) .cse0) (and (<= 99 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483603) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 74) (<= 74 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 85) (<= 85 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 71) (<= 71 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 52) (<= 52 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 51 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 51)) (and (<= 69 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 69) .cse0) (and (<= 92 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 92) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 81) (<= 81 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 54 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 54)) (and (<= 57 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 57) .cse0) (and (<= 67 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 67) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 68) (<= 68 |ULTIMATE.start_main_~x~0#1|) .cse0))) [2022-11-22 00:31:28,032 INFO L444 BasicCegarLoop]: Path program histogram: [11, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:28,035 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:31:28,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:31:28 BoogieIcfgContainer [2022-11-22 00:31:28,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:31:28,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:31:28,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:31:28,071 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:31:28,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:30:35" (3/4) ... [2022-11-22 00:31:28,075 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:31:28,084 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-22 00:31:28,096 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-22 00:31:28,096 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 00:31:28,096 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:31:28,141 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:31:28,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:31:28,143 INFO L158 Benchmark]: Toolchain (without parser) took 52767.89ms. Allocated memory was 174.1MB in the beginning and 755.0MB in the end (delta: 580.9MB). Free memory was 135.0MB in the beginning and 440.6MB in the end (delta: -305.6MB). Peak memory consumption was 278.5MB. Max. memory is 16.1GB. [2022-11-22 00:31:28,143 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 121.6MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:31:28,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.38ms. Allocated memory is still 174.1MB. Free memory was 135.0MB in the beginning and 124.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 00:31:28,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.26ms. Allocated memory is still 174.1MB. Free memory was 124.8MB in the beginning and 123.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:31:28,145 INFO L158 Benchmark]: Boogie Preprocessor took 19.56ms. Allocated memory is still 174.1MB. Free memory was 123.1MB in the beginning and 122.4MB in the end (delta: 673.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:31:28,146 INFO L158 Benchmark]: RCFGBuilder took 299.42ms. Allocated memory is still 174.1MB. Free memory was 122.4MB in the beginning and 111.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 00:31:28,147 INFO L158 Benchmark]: TraceAbstraction took 52110.42ms. Allocated memory was 174.1MB in the beginning and 755.0MB in the end (delta: 580.9MB). Free memory was 110.5MB in the beginning and 443.7MB in the end (delta: -333.2MB). Peak memory consumption was 249.1MB. Max. memory is 16.1GB. [2022-11-22 00:31:28,147 INFO L158 Benchmark]: Witness Printer took 71.48ms. Allocated memory is still 755.0MB. Free memory was 443.7MB in the beginning and 440.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:31:28,153 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 121.6MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.38ms. Allocated memory is still 174.1MB. Free memory was 135.0MB in the beginning and 124.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.26ms. Allocated memory is still 174.1MB. Free memory was 124.8MB in the beginning and 123.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.56ms. Allocated memory is still 174.1MB. Free memory was 123.1MB in the beginning and 122.4MB in the end (delta: 673.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.42ms. Allocated memory is still 174.1MB. Free memory was 122.4MB in the beginning and 111.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 52110.42ms. Allocated memory was 174.1MB in the beginning and 755.0MB in the end (delta: 580.9MB). Free memory was 110.5MB in the beginning and 443.7MB in the end (delta: -333.2MB). Peak memory consumption was 249.1MB. Max. memory is 16.1GB. * Witness Printer took 71.48ms. Allocated memory is still 755.0MB. Free memory was 443.7MB in the beginning and 440.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 52.0s, OverallIterations: 17, TraceHistogramMax: 145, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.1s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 953 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 953 mSDsluCounter, 1247 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1032 mSDsCounter, 198 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1919 IncrementalHoareTripleChecker+Invalid, 2117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 198 mSolverCounterUnsat, 215 mSDtfsCounter, 1919 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6468 GetRequests, 5827 SyntacticMatches, 48 SemanticMatches, 593 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10103 ImplicationChecksByTransitivity, 21.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=771occurred in iteration=16, InterpolantAutomatonStates: 425, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 102 NumberOfFragments, 521 HoareAnnotationTreeSize, 1 FomulaSimplifications, 605 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 1 FomulaSimplificationsInter, 637 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 34.8s InterpolantComputationTime, 5198 NumberOfCodeBlocks, 4746 NumberOfCodeBlocksAsserted, 114 NumberOfCheckSat, 6935 ConstructedInterpolants, 0 QuantifiedInterpolants, 18637 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3753 ConjunctsInSsa, 252 ConjunctsInUnsatCore, 43 InterpolantComputations, 7 PerfectInterpolantSequences, 100245/203692 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((y <= 65 && 65 <= x) && 50 <= y) || ((y <= 59 && 50 <= y) && 59 <= x)) || ((80 <= x && y <= 80) && 50 <= y)) || ((90 <= x && 50 <= y) && y <= 90)) || ((60 <= x && y <= 60) && 50 <= y)) || ((83 <= x && y <= 83) && 50 <= y)) || ((94 <= x && y <= 94) && 50 <= y)) || ((y <= 53 && 50 <= y) && 53 <= x)) || ((72 <= x && 50 <= y) && y <= 72)) || ((95 <= x && y <= 95) && 50 <= y)) || ((78 <= x && y <= 78) && 50 <= y)) || ((64 <= x && y <= 64) && 50 <= y)) || ((98 <= x && y < 2147483602) && 50 <= y)) || ((x == 0 && y <= 50) && 50 <= y)) || ((y <= 79 && 50 <= y) && 79 <= x)) || ((100 <= x && y < 2147483604) && 50 <= y)) || ((y <= 76 && 76 <= x) && 50 <= y)) || ((97 <= x && y < 2147483601) && 50 <= y)) || ((y <= 96 && 96 <= x) && 50 <= y)) || ((y <= 73 && 50 <= y) && 73 <= x)) || ((70 <= x && y <= 70) && 50 <= y)) || ((91 <= x && y <= 91) && 50 <= y)) || ((63 <= x && y <= 63) && 50 <= y)) || ((y <= 75 && 75 <= x) && 50 <= y)) || ((y <= 86 && 86 <= x) && 50 <= y)) || ((87 <= x && y <= 87) && 50 <= y)) || ((y <= 56 && 56 <= x) && 50 <= y)) || ((y <= 88 && 88 <= x) && 50 <= y)) || ((y <= 55 && 55 <= x) && 50 <= y)) || ((1 <= x && y <= 50) && 50 <= y)) || ((82 <= x && y <= 82) && 50 <= y)) || ((62 <= x && 50 <= y) && y <= 62)) || ((y <= 89 && 89 <= x) && 50 <= y)) || ((y <= 58 && 58 <= x) && 50 <= y)) || ((93 <= x && y <= 93) && 50 <= y)) || ((y <= 66 && 66 <= x) && 50 <= y)) || ((y <= 77 && 50 <= y) && 77 <= x)) || ((y <= 84 && 84 <= x) && 50 <= y)) || ((61 <= x && y <= 61) && 50 <= y)) || ((99 <= x && y < 2147483603) && 50 <= y)) || ((y <= 74 && 74 <= x) && 50 <= y)) || ((y <= 85 && 85 <= x) && 50 <= y)) || ((y <= 71 && 71 <= x) && 50 <= y)) || ((y <= 52 && 52 <= x) && 50 <= y)) || ((51 <= x && 50 <= y) && y <= 51)) || ((69 <= x && y <= 69) && 50 <= y)) || ((92 <= x && y <= 92) && 50 <= y)) || ((y <= 81 && 81 <= x) && 50 <= y)) || ((54 <= x && 50 <= y) && y <= 54)) || ((57 <= x && y <= 57) && 50 <= y)) || ((67 <= x && y <= 67) && 50 <= y)) || ((y <= 68 && 68 <= x) && 50 <= y) RESULT: Ultimate proved your program to be correct! [2022-11-22 00:31:28,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a04f866f-2211-4afe-b84f-86b59e54c329/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE