./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash ee9c59fadd23ca10e0d185310e2f0a9dbd90ddce0b1298fb9881997e2e5c616b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:22:52,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:22:52,274 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 14:22:52,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:22:52,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:22:52,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:22:52,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:22:52,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:22:52,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:22:52,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:22:52,307 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:22:52,308 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:22:52,308 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:22:52,309 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:22:52,309 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:22:52,310 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:22:52,310 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:22:52,311 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:22:52,311 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:22:52,312 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:22:52,312 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:22:52,316 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:22:52,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:22:52,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:22:52,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:22:52,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:22:52,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:22:52,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:22:52,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:22:52,320 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 14:22:52,320 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:22:52,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:22:52,321 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:22:52,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:22:52,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:22:52,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:22:52,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:22:52,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:22:52,322 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:22:52,323 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:22:52,323 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:22:52,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:22:52,323 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:22:52,324 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:22:52,324 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:22:52,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:22:52,324 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee9c59fadd23ca10e0d185310e2f0a9dbd90ddce0b1298fb9881997e2e5c616b [2023-12-02 14:22:52,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:22:52,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:22:52,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:22:52,574 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:22:52,575 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:22:52,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_good.i [2023-12-02 14:22:55,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:22:55,654 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:22:55,654 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_good.i [2023-12-02 14:22:55,678 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/data/eb6d4b7e4/e39fa257135846b89a8374ac317d1959/FLAG1360bed7c [2023-12-02 14:22:55,693 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/data/eb6d4b7e4/e39fa257135846b89a8374ac317d1959 [2023-12-02 14:22:55,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:22:55,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:22:55,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:22:55,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:22:55,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:22:55,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:22:55" (1/1) ... [2023-12-02 14:22:55,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ab3f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:55, skipping insertion in model container [2023-12-02 14:22:55,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:22:55" (1/1) ... [2023-12-02 14:22:55,766 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:22:56,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:22:56,484 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:22:56,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:22:56,657 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:56,657 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:56,657 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:56,658 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:22:56,663 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:22:56,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56 WrapperNode [2023-12-02 14:22:56,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:22:56,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:22:56,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:22:56,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:22:56,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (1/1) ... [2023-12-02 14:22:56,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (1/1) ... [2023-12-02 14:22:56,733 INFO L138 Inliner]: procedures = 504, calls = 69, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 185 [2023-12-02 14:22:56,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:22:56,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:22:56,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:22:56,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:22:56,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (1/1) ... [2023-12-02 14:22:56,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (1/1) ... [2023-12-02 14:22:56,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (1/1) ... [2023-12-02 14:22:56,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (1/1) ... [2023-12-02 14:22:56,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (1/1) ... [2023-12-02 14:22:56,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (1/1) ... [2023-12-02 14:22:56,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (1/1) ... [2023-12-02 14:22:56,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (1/1) ... [2023-12-02 14:22:56,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:22:56,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:22:56,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:22:56,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:22:56,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (1/1) ... [2023-12-02 14:22:56,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:22:56,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:22:56,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:22:56,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:22:56,832 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-02 14:22:56,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-02 14:22:56,832 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 14:22:56,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 14:22:56,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:22:56,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:22:56,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:22:56,833 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 14:22:56,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:22:56,977 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:22:56,979 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:22:57,284 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:22:57,529 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:22:57,530 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 14:22:57,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:22:57 BoogieIcfgContainer [2023-12-02 14:22:57,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:22:57,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:22:57,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:22:57,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:22:57,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:22:55" (1/3) ... [2023-12-02 14:22:57,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c063066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:22:57, skipping insertion in model container [2023-12-02 14:22:57,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:56" (2/3) ... [2023-12-02 14:22:57,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c063066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:22:57, skipping insertion in model container [2023-12-02 14:22:57,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:22:57" (3/3) ... [2023-12-02 14:22:57,540 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_21_good.i [2023-12-02 14:22:57,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:22:57,559 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-12-02 14:22:57,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:22:57,612 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=LoopHeads, 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;@2a37e50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:22:57,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-12-02 14:22:57,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.44) internal successors, (36), 31 states have internal predecessors, (36), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-02 14:22:57,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 14:22:57,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:57,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:22:57,624 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 14:22:57,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:57,629 INFO L85 PathProgramCache]: Analyzing trace with hash 996877428, now seen corresponding path program 1 times [2023-12-02 14:22:57,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:57,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574952247] [2023-12-02 14:22:57,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:57,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:57,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:22:57,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:57,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574952247] [2023-12-02 14:22:57,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574952247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:57,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:22:57,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:22:57,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998502265] [2023-12-02 14:22:57,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:57,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:22:57,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:57,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:22:57,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:22:57,949 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.44) internal successors, (36), 31 states have internal predecessors, (36), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 14:22:58,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:58,024 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2023-12-02 14:22:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:22:58,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2023-12-02 14:22:58,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:58,034 INFO L225 Difference]: With dead ends: 43 [2023-12-02 14:22:58,034 INFO L226 Difference]: Without dead ends: 36 [2023-12-02 14:22:58,037 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 [2023-12-02 14:22:58,040 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 4 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:58,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 76 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:22:58,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-12-02 14:22:58,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2023-12-02 14:22:58,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 14:22:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2023-12-02 14:22:58,095 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 8 [2023-12-02 14:22:58,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:58,097 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2023-12-02 14:22:58,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 14:22:58,097 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2023-12-02 14:22:58,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 14:22:58,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:58,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:22:58,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:22:58,099 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 14:22:58,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:58,100 INFO L85 PathProgramCache]: Analyzing trace with hash 838429329, now seen corresponding path program 1 times [2023-12-02 14:22:58,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:58,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802238435] [2023-12-02 14:22:58,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:58,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:58,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:22:58,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:58,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802238435] [2023-12-02 14:22:58,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802238435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:58,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:22:58,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:22:58,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058186333] [2023-12-02 14:22:58,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:58,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:22:58,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:58,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:22:58,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:22:58,305 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 14:22:58,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:58,355 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2023-12-02 14:22:58,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:22:58,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2023-12-02 14:22:58,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:58,356 INFO L225 Difference]: With dead ends: 35 [2023-12-02 14:22:58,357 INFO L226 Difference]: Without dead ends: 34 [2023-12-02 14:22:58,357 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 [2023-12-02 14:22:58,359 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:58,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 54 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:22:58,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-02 14:22:58,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-12-02 14:22:58,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 14:22:58,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2023-12-02 14:22:58,368 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 9 [2023-12-02 14:22:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:58,368 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2023-12-02 14:22:58,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 14:22:58,369 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-12-02 14:22:58,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 14:22:58,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:58,370 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:22:58,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:22:58,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 14:22:58,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:58,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1169891900, now seen corresponding path program 1 times [2023-12-02 14:22:58,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:58,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705131468] [2023-12-02 14:22:58,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:58,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:22:58,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:58,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705131468] [2023-12-02 14:22:58,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705131468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:58,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:22:58,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:22:58,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446775997] [2023-12-02 14:22:58,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:58,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:22:58,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:22:58,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:22:58,454 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 14:22:58,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:58,507 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2023-12-02 14:22:58,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:22:58,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-12-02 14:22:58,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:58,509 INFO L225 Difference]: With dead ends: 55 [2023-12-02 14:22:58,509 INFO L226 Difference]: Without dead ends: 32 [2023-12-02 14:22:58,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:22:58,511 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 30 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 [2023-12-02 14:22:58,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 30 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:22:58,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-12-02 14:22:58,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-12-02 14:22:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 14:22:58,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2023-12-02 14:22:58,519 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 14 [2023-12-02 14:22:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:58,520 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2023-12-02 14:22:58,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 14:22:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2023-12-02 14:22:58,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 14:22:58,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:58,521 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:22:58,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:22:58,521 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 14:22:58,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:58,522 INFO L85 PathProgramCache]: Analyzing trace with hash -320636692, now seen corresponding path program 1 times [2023-12-02 14:22:58,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:58,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930068396] [2023-12-02 14:22:58,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:58,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:58,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:22:58,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:58,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930068396] [2023-12-02 14:22:58,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930068396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:58,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:22:58,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:22:58,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577026632] [2023-12-02 14:22:58,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:58,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:22:58,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:58,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:22:58,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:22:58,611 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:22:58,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:58,665 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2023-12-02 14:22:58,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:22:58,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-12-02 14:22:58,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:58,667 INFO L225 Difference]: With dead ends: 33 [2023-12-02 14:22:58,667 INFO L226 Difference]: Without dead ends: 32 [2023-12-02 14:22:58,667 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 [2023-12-02 14:22:58,669 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 4 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:58,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 50 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:22:58,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-12-02 14:22:58,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2023-12-02 14:22:58,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 23 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 14:22:58,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-12-02 14:22:58,676 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 15 [2023-12-02 14:22:58,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:58,677 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-12-02 14:22:58,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:22:58,677 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-12-02 14:22:58,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 14:22:58,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:58,678 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:22:58,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 14:22:58,679 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 14:22:58,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1349802632, now seen corresponding path program 1 times [2023-12-02 14:22:58,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:58,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145176631] [2023-12-02 14:22:58,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:58,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:58,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:22:58,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:58,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145176631] [2023-12-02 14:22:58,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145176631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:58,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:22:58,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:22:58,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003443159] [2023-12-02 14:22:58,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:58,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:22:58,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:58,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:22:58,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:22:58,842 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:22:58,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:58,889 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-12-02 14:22:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:22:58,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-12-02 14:22:58,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:58,890 INFO L225 Difference]: With dead ends: 31 [2023-12-02 14:22:58,890 INFO L226 Difference]: Without dead ends: 30 [2023-12-02 14:22:58,891 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 [2023-12-02 14:22:58,892 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:58,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 44 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:22:58,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-02 14:22:58,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-12-02 14:22:58,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 14:22:58,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-12-02 14:22:58,898 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 16 [2023-12-02 14:22:58,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:58,898 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-12-02 14:22:58,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:22:58,898 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-12-02 14:22:58,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 14:22:58,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:58,899 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:22:58,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 14:22:58,900 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 14:22:58,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:58,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1349270623, now seen corresponding path program 1 times [2023-12-02 14:22:58,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:58,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517490863] [2023-12-02 14:22:58,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:58,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:22:58,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:58,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517490863] [2023-12-02 14:22:58,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517490863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:59,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:22:59,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:22:59,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764018347] [2023-12-02 14:22:59,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:59,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:22:59,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:59,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:22:59,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:22:59,002 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:22:59,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:59,040 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2023-12-02 14:22:59,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:22:59,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-12-02 14:22:59,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:59,041 INFO L225 Difference]: With dead ends: 40 [2023-12-02 14:22:59,041 INFO L226 Difference]: Without dead ends: 34 [2023-12-02 14:22:59,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:22:59,043 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:59,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 40 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:22:59,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-02 14:22:59,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-12-02 14:22:59,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 14:22:59,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2023-12-02 14:22:59,050 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 16 [2023-12-02 14:22:59,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:59,050 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2023-12-02 14:22:59,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:22:59,050 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2023-12-02 14:22:59,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 14:22:59,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:59,051 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:22:59,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 14:22:59,052 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)] === [2023-12-02 14:22:59,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:59,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1502146224, now seen corresponding path program 1 times [2023-12-02 14:22:59,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:59,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540373742] [2023-12-02 14:22:59,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:59,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:59,142 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 14:22:59,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:59,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540373742] [2023-12-02 14:22:59,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540373742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:59,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:22:59,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:22:59,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714007203] [2023-12-02 14:22:59,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:59,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:22:59,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:59,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:22:59,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:22:59,145 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 14:22:59,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:59,187 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2023-12-02 14:22:59,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:22:59,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2023-12-02 14:22:59,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:59,188 INFO L225 Difference]: With dead ends: 34 [2023-12-02 14:22:59,188 INFO L226 Difference]: Without dead ends: 33 [2023-12-02 14:22:59,189 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 [2023-12-02 14:22:59,189 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:59,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 49 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:22:59,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-12-02 14:22:59,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-12-02 14:22:59,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 14:22:59,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2023-12-02 14:22:59,196 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 21 [2023-12-02 14:22:59,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:59,196 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2023-12-02 14:22:59,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 14:22:59,196 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2023-12-02 14:22:59,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 14:22:59,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:22:59,197 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:22:59,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 14:22:59,198 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-12-02 14:22:59,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:22:59,198 INFO L85 PathProgramCache]: Analyzing trace with hash -678107064, now seen corresponding path program 1 times [2023-12-02 14:22:59,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:22:59,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586148185] [2023-12-02 14:22:59,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:22:59,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:22:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:22:59,292 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 14:22:59,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:22:59,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586148185] [2023-12-02 14:22:59,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586148185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:22:59,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:22:59,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:22:59,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898340973] [2023-12-02 14:22:59,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:22:59,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:22:59,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:22:59,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:22:59,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:22:59,295 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 14:22:59,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:22:59,344 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2023-12-02 14:22:59,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:22:59,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2023-12-02 14:22:59,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:22:59,348 INFO L225 Difference]: With dead ends: 33 [2023-12-02 14:22:59,348 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 14:22:59,349 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 [2023-12-02 14:22:59,350 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:22:59,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:22:59,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 14:22:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 14:22:59,351 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) [2023-12-02 14:22:59,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 14:22:59,351 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2023-12-02 14:22:59,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:22:59,351 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 14:22:59,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 14:22:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 14:22:59,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 14:22:59,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-12-02 14:22:59,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-12-02 14:22:59,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-12-02 14:22:59,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-12-02 14:22:59,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-12-02 14:22:59,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-12-02 14:22:59,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 14:22:59,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 14:22:59,401 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-12-02 14:22:59,402 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-12-02 14:22:59,402 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-12-02 14:22:59,402 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-12-02 14:22:59,402 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2023-12-02 14:22:59,402 INFO L895 garLoopResultBuilder]: At program point L1555(line 1555) the Hoare annotation is: false [2023-12-02 14:22:59,402 INFO L899 garLoopResultBuilder]: For program point L1555-1(line 1555) no Hoare annotation was computed. [2023-12-02 14:22:59,403 INFO L895 garLoopResultBuilder]: At program point L1589(line 1589) the Hoare annotation is: (and (= ~goodB2G2Static~0 1) (<= |ULTIMATE.start_goodB2G2Sink_~data#1| 2147483647) (= ~goodB2G1Static~0 0)) [2023-12-02 14:22:59,403 INFO L899 garLoopResultBuilder]: For program point L1589-1(line 1589) no Hoare annotation was computed. [2023-12-02 14:22:59,403 INFO L899 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2023-12-02 14:22:59,403 INFO L899 garLoopResultBuilder]: For program point L1606-1(line 1606) no Hoare annotation was computed. [2023-12-02 14:22:59,403 INFO L902 garLoopResultBuilder]: At program point L1607(line 1607) the Hoare annotation is: true [2023-12-02 14:22:59,403 INFO L899 garLoopResultBuilder]: For program point L1607-1(line 1607) no Hoare annotation was computed. [2023-12-02 14:22:59,403 INFO L899 garLoopResultBuilder]: For program point L1559(lines 1559 1567) no Hoare annotation was computed. [2023-12-02 14:22:59,403 INFO L899 garLoopResultBuilder]: For program point L1559-2(lines 1551 1569) no Hoare annotation was computed. [2023-12-02 14:22:59,404 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 14:22:59,404 INFO L899 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2023-12-02 14:22:59,404 INFO L899 garLoopResultBuilder]: For program point L1561-1(line 1561) no Hoare annotation was computed. [2023-12-02 14:22:59,404 INFO L899 garLoopResultBuilder]: For program point L1578(lines 1578 1592) no Hoare annotation was computed. [2023-12-02 14:22:59,404 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2023-12-02 14:22:59,404 INFO L895 garLoopResultBuilder]: At program point L1628(line 1628) the Hoare annotation is: (= ~goodB2G1Static~0 0) [2023-12-02 14:22:59,404 INFO L899 garLoopResultBuilder]: For program point L1628-1(line 1628) no Hoare annotation was computed. [2023-12-02 14:22:59,405 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (and (<= 0 (+ 2147483647 |ULTIMATE.start_goodB2G1Sink_~data#1|)) (= ~goodB2G1Static~0 0) (<= |ULTIMATE.start_goodB2G1Sink_~data#1| 2147483647)) [2023-12-02 14:22:59,405 INFO L899 garLoopResultBuilder]: For program point L1562-1(line 1562) no Hoare annotation was computed. [2023-12-02 14:22:59,405 INFO L899 garLoopResultBuilder]: For program point L1580(lines 1580 1591) no Hoare annotation was computed. [2023-12-02 14:22:59,405 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2023-12-02 14:22:59,405 INFO L902 garLoopResultBuilder]: At program point L1630(line 1630) the Hoare annotation is: true [2023-12-02 14:22:59,405 INFO L899 garLoopResultBuilder]: For program point L1630-1(line 1630) no Hoare annotation was computed. [2023-12-02 14:22:59,405 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2023-12-02 14:22:59,405 INFO L899 garLoopResultBuilder]: For program point L1582(lines 1582 1590) no Hoare annotation was computed. [2023-12-02 14:22:59,406 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 14:22:59,406 INFO L895 garLoopResultBuilder]: At program point L1566(line 1566) the Hoare annotation is: (and (= ~goodB2G1Static~0 0) (<= |ULTIMATE.start_goodB2G1Sink_~data#1| 2147483647)) [2023-12-02 14:22:59,406 INFO L899 garLoopResultBuilder]: For program point L1566-1(line 1566) no Hoare annotation was computed. [2023-12-02 14:22:59,406 INFO L899 garLoopResultBuilder]: For program point L1584(line 1584) no Hoare annotation was computed. [2023-12-02 14:22:59,406 INFO L899 garLoopResultBuilder]: For program point L1584-1(line 1584) no Hoare annotation was computed. [2023-12-02 14:22:59,406 INFO L899 garLoopResultBuilder]: For program point L1601(lines 1601 1610) no Hoare annotation was computed. [2023-12-02 14:22:59,406 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1606) no Hoare annotation was computed. [2023-12-02 14:22:59,406 INFO L895 garLoopResultBuilder]: At program point L1585(line 1585) the Hoare annotation is: (and (= ~goodB2G2Static~0 1) (<= |ULTIMATE.start_goodB2G2Sink_~data#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_goodB2G2Sink_~data#1|)) (= ~goodB2G1Static~0 0)) [2023-12-02 14:22:59,407 INFO L899 garLoopResultBuilder]: For program point L1585-1(line 1585) no Hoare annotation was computed. [2023-12-02 14:22:59,407 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1606) no Hoare annotation was computed. [2023-12-02 14:22:59,407 INFO L899 garLoopResultBuilder]: For program point L1553(lines 1553 1568) no Hoare annotation was computed. [2023-12-02 14:22:59,407 INFO L899 garLoopResultBuilder]: For program point L1603(lines 1603 1609) no Hoare annotation was computed. [2023-12-02 14:22:59,411 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:22:59,413 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:22:59,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:22:59 BoogieIcfgContainer [2023-12-02 14:22:59,418 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:22:59,419 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:22:59,419 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:22:59,419 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:22:59,420 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:22:57" (3/4) ... [2023-12-02 14:22:59,421 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 14:22:59,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-12-02 14:22:59,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-12-02 14:22:59,433 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2023-12-02 14:22:59,434 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-12-02 14:22:59,435 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 14:22:59,435 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 14:22:59,540 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 14:22:59,540 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 14:22:59,541 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:22:59,541 INFO L158 Benchmark]: Toolchain (without parser) took 3844.00ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 104.6MB in the beginning and 97.3MB in the end (delta: 7.3MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2023-12-02 14:22:59,542 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:22:59,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 965.61ms. Allocated memory is still 151.0MB. Free memory was 104.6MB in the beginning and 63.0MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-12-02 14:22:59,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.29ms. Allocated memory is still 151.0MB. Free memory was 63.0MB in the beginning and 59.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:22:59,543 INFO L158 Benchmark]: Boogie Preprocessor took 30.82ms. Allocated memory is still 151.0MB. Free memory was 59.3MB in the beginning and 57.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:22:59,543 INFO L158 Benchmark]: RCFGBuilder took 765.45ms. Allocated memory is still 151.0MB. Free memory was 57.4MB in the beginning and 70.9MB in the end (delta: -13.5MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-12-02 14:22:59,544 INFO L158 Benchmark]: TraceAbstraction took 1884.36ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 70.0MB in the beginning and 104.7MB in the end (delta: -34.7MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2023-12-02 14:22:59,544 INFO L158 Benchmark]: Witness Printer took 121.80ms. Allocated memory is still 222.3MB. Free memory was 104.7MB in the beginning and 97.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 14:22:59,546 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 965.61ms. Allocated memory is still 151.0MB. Free memory was 104.6MB in the beginning and 63.0MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.29ms. Allocated memory is still 151.0MB. Free memory was 63.0MB in the beginning and 59.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.82ms. Allocated memory is still 151.0MB. Free memory was 59.3MB in the beginning and 57.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 765.45ms. Allocated memory is still 151.0MB. Free memory was 57.4MB in the beginning and 70.9MB in the end (delta: -13.5MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1884.36ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 70.0MB in the beginning and 104.7MB in the end (delta: -34.7MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * Witness Printer took 121.80ms. Allocated memory is still 222.3MB. Free memory was 104.7MB in the beginning and 97.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 392 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 162 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 230 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 20 NumberOfFragments, 52 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 161 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 20/20 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 RESULT: Ultimate proved your program to be correct! [2023-12-02 14:22:59,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f75f7701-5cf9-4b59-9b7d-363068f81867/bin/utaipan-verify-nQ1chXbOIh/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