./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje --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 32bit --witnessprinter.graph.data.programhash a93c350e5795e32421c3bef9d7525c3fd53f570f971d574def19132b3d6f08b8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:17:56,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:17:56,684 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:17:56,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:17:56,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:17:56,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:17:56,729 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:17:56,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:17:56,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:17:56,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:17:56,731 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:17:56,731 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:17:56,732 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:17:56,732 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:17:56,732 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:17:56,733 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:17:56,733 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:17:56,734 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:17:56,734 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:17:56,734 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:17:56,738 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:17:56,739 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:17:56,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:17:56,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:17:56,740 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:17:56,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:17:56,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:17:56,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:17:56,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:17:56,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:17:56,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:17:56,746 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:17:56,747 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:17:56,747 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:17:56,747 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:17:56,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:17:56,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:17:56,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:17:56,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:17:56,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:17:56,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:17:56,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:17:56,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:17:56,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:17:56,751 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:17:56,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:17:56,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:17:56,752 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:17:56,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:17:56,752 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_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a93c350e5795e32421c3bef9d7525c3fd53f570f971d574def19132b3d6f08b8 [2024-11-09 06:17:57,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:17:57,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:17:57,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:17:57,058 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:17:57,059 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:17:57,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c Unable to find full path for "g++" [2024-11-09 06:17:59,066 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:17:59,340 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:17:59,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound5.c [2024-11-09 06:17:59,348 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/data/1d9d05b79/e9d23cbf26864150bc585775188e24a5/FLAG2d2d7637b [2024-11-09 06:17:59,363 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/data/1d9d05b79/e9d23cbf26864150bc585775188e24a5 [2024-11-09 06:17:59,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:17:59,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:17:59,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:17:59,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:17:59,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:17:59,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b3c98f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59, skipping insertion in model container [2024-11-09 06:17:59,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,406 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:17:59,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:17:59,654 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:17:59,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:17:59,690 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:17:59,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59 WrapperNode [2024-11-09 06:17:59,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:17:59,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:17:59,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:17:59,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:17:59,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,731 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2024-11-09 06:17:59,731 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:17:59,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:17:59,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:17:59,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:17:59,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:17:59,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:17:59,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:17:59,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:17:59,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (1/1) ... [2024-11-09 06:17:59,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:17:59,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:17:59,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:17:59,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:17:59,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:17:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:17:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:17:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:17:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:17:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:17:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:17:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:17:59,901 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:17:59,903 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:18:00,219 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-09 06:18:00,219 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:18:00,292 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:18:00,294 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 06:18:00,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:18:00 BoogieIcfgContainer [2024-11-09 06:18:00,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:18:00,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:18:00,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:18:00,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:18:00,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:17:59" (1/3) ... [2024-11-09 06:18:00,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c8e2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:18:00, skipping insertion in model container [2024-11-09 06:18:00,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:59" (2/3) ... [2024-11-09 06:18:00,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c8e2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:18:00, skipping insertion in model container [2024-11-09 06:18:00,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:18:00" (3/3) ... [2024-11-09 06:18:00,311 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound5.c [2024-11-09 06:18:00,330 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:18:00,330 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-09 06:18:00,395 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:18:00,406 INFO L333 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, 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;@7fdf44cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:18:00,406 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-09 06:18:00,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 06:18:00,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 06:18:00,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:00,420 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:00,420 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:00,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:00,430 INFO L85 PathProgramCache]: Analyzing trace with hash 31241006, now seen corresponding path program 1 times [2024-11-09 06:18:00,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:00,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748565458] [2024-11-09 06:18:00,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:00,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:00,600 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:18:00,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:00,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748565458] [2024-11-09 06:18:00,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748565458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:00,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:00,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:18:00,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316722034] [2024-11-09 06:18:00,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:00,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:18:00,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:00,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:18:00,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:18:00,653 INFO L87 Difference]: Start difference. First operand has 72 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-09 06:18:00,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:00,702 INFO L93 Difference]: Finished difference Result 119 states and 136 transitions. [2024-11-09 06:18:00,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:18:00,705 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 15 [2024-11-09 06:18:00,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:00,712 INFO L225 Difference]: With dead ends: 119 [2024-11-09 06:18:00,713 INFO L226 Difference]: Without dead ends: 68 [2024-11-09 06:18:00,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:18:00,721 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:00,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:18:00,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-09 06:18:00,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-09 06:18:00,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 57 states have internal predecessors, (60), 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) [2024-11-09 06:18:00,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2024-11-09 06:18:00,768 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 15 [2024-11-09 06:18:00,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:00,769 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2024-11-09 06:18:00,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-09 06:18:00,770 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2024-11-09 06:18:00,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 06:18:00,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:00,771 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:00,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:18:00,772 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:00,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:00,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1026206095, now seen corresponding path program 1 times [2024-11-09 06:18:00,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:00,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119737628] [2024-11-09 06:18:00,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:00,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:18:00,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225158686] [2024-11-09 06:18:00,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:00,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:00,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:00,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:00,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:18:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:00,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:18:00,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:00,939 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:18:00,939 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:18:00,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:00,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119737628] [2024-11-09 06:18:00,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:18:00,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225158686] [2024-11-09 06:18:00,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225158686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:00,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:00,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:18:00,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528379305] [2024-11-09 06:18:00,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:00,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:18:00,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:00,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:18:00,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:18:00,945 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 06:18:01,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:01,034 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2024-11-09 06:18:01,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:18:01,034 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 20 [2024-11-09 06:18:01,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:01,036 INFO L225 Difference]: With dead ends: 142 [2024-11-09 06:18:01,036 INFO L226 Difference]: Without dead ends: 95 [2024-11-09 06:18:01,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:18:01,038 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 20 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:01,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 116 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:18:01,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-09 06:18:01,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 89. [2024-11-09 06:18:01,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 50 states have (on average 1.66) internal successors, (83), 73 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:18:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2024-11-09 06:18:01,053 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 20 [2024-11-09 06:18:01,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:01,054 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2024-11-09 06:18:01,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 06:18:01,054 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2024-11-09 06:18:01,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:18:01,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:01,055 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:01,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:18:01,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:01,260 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:01,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:01,261 INFO L85 PathProgramCache]: Analyzing trace with hash 533185486, now seen corresponding path program 1 times [2024-11-09 06:18:01,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:01,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157217890] [2024-11-09 06:18:01,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:01,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:01,491 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:18:01,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:01,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157217890] [2024-11-09 06:18:01,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157217890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:01,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:01,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:18:01,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117657509] [2024-11-09 06:18:01,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:01,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:18:01,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:01,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:18:01,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:18:01,495 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:18:01,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:01,616 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2024-11-09 06:18:01,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:18:01,617 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 26 [2024-11-09 06:18:01,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:01,619 INFO L225 Difference]: With dead ends: 89 [2024-11-09 06:18:01,619 INFO L226 Difference]: Without dead ends: 87 [2024-11-09 06:18:01,619 INFO L431 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 [2024-11-09 06:18:01,621 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 39 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:01,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 62 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:18:01,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-09 06:18:01,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-09 06:18:01,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 50 states have (on average 1.6) internal successors, (80), 71 states have internal predecessors, (80), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:18:01,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2024-11-09 06:18:01,640 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 26 [2024-11-09 06:18:01,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:01,640 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2024-11-09 06:18:01,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:18:01,641 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2024-11-09 06:18:01,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:18:01,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:01,642 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:01,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:18:01,642 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:01,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash -651120467, now seen corresponding path program 1 times [2024-11-09 06:18:01,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:01,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489097930] [2024-11-09 06:18:01,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:01,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:18:01,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [958792160] [2024-11-09 06:18:01,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:01,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:01,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:01,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:01,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:18:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:01,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:18:01,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:01,809 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:18:01,810 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:18:01,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:01,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489097930] [2024-11-09 06:18:01,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:18:01,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958792160] [2024-11-09 06:18:01,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958792160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:01,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:01,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:18:01,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90857332] [2024-11-09 06:18:01,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:01,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:18:01,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:01,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:18:01,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:18:01,816 INFO L87 Difference]: Start difference. First operand 87 states and 106 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:18:01,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:01,936 INFO L93 Difference]: Finished difference Result 121 states and 149 transitions. [2024-11-09 06:18:01,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:18:01,937 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2024-11-09 06:18:01,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:01,938 INFO L225 Difference]: With dead ends: 121 [2024-11-09 06:18:01,938 INFO L226 Difference]: Without dead ends: 117 [2024-11-09 06:18:01,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:18:01,940 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 37 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:01,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 90 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:18:01,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-09 06:18:01,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 104. [2024-11-09 06:18:01,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 86 states have internal predecessors, (102), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 06:18:01,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2024-11-09 06:18:01,954 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 27 [2024-11-09 06:18:01,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:01,955 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2024-11-09 06:18:01,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:18:01,955 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2024-11-09 06:18:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 06:18:01,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:01,956 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:01,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:18:02,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:02,163 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:02,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:02,163 INFO L85 PathProgramCache]: Analyzing trace with hash -651119057, now seen corresponding path program 1 times [2024-11-09 06:18:02,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:02,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620391940] [2024-11-09 06:18:02,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:02,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:02,245 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:18:02,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:02,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620391940] [2024-11-09 06:18:02,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620391940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:02,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:02,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:18:02,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544579420] [2024-11-09 06:18:02,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:02,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:18:02,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:02,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:18:02,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:18:02,248 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:18:02,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:02,307 INFO L93 Difference]: Finished difference Result 111 states and 137 transitions. [2024-11-09 06:18:02,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:18:02,308 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2024-11-09 06:18:02,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:02,309 INFO L225 Difference]: With dead ends: 111 [2024-11-09 06:18:02,309 INFO L226 Difference]: Without dead ends: 110 [2024-11-09 06:18:02,310 INFO L431 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 [2024-11-09 06:18:02,311 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:02,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 111 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:18:02,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-09 06:18:02,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2024-11-09 06:18:02,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5538461538461539) internal successors, (101), 86 states have internal predecessors, (101), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 06:18:02,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2024-11-09 06:18:02,323 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 27 [2024-11-09 06:18:02,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:02,324 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2024-11-09 06:18:02,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:18:02,324 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2024-11-09 06:18:02,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 06:18:02,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:02,325 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:02,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:18:02,326 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:02,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:02,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1338458959, now seen corresponding path program 1 times [2024-11-09 06:18:02,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:02,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057004108] [2024-11-09 06:18:02,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:02,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:02,522 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:18:02,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:02,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057004108] [2024-11-09 06:18:02,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057004108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:02,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:02,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:18:02,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160472759] [2024-11-09 06:18:02,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:02,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:18:02,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:02,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:18:02,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:18:02,529 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:18:02,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:02,893 INFO L93 Difference]: Finished difference Result 119 states and 145 transitions. [2024-11-09 06:18:02,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:18:02,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 29 [2024-11-09 06:18:02,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:02,896 INFO L225 Difference]: With dead ends: 119 [2024-11-09 06:18:02,896 INFO L226 Difference]: Without dead ends: 118 [2024-11-09 06:18:02,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:18:02,898 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 85 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:02,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 86 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:18:02,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-09 06:18:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2024-11-09 06:18:02,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.5217391304347827) internal successors, (105), 90 states have internal predecessors, (105), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 06:18:02,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2024-11-09 06:18:02,927 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 29 [2024-11-09 06:18:02,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:02,927 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2024-11-09 06:18:02,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:18:02,928 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2024-11-09 06:18:02,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 06:18:02,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:02,928 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:02,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:18:02,929 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:02,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:02,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1457445148, now seen corresponding path program 1 times [2024-11-09 06:18:02,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:02,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831903932] [2024-11-09 06:18:02,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:02,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:18:02,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134170626] [2024-11-09 06:18:02,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:02,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:02,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:02,972 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:02,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:18:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:03,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:18:03,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:03,166 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:18:03,166 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:18:03,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:03,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831903932] [2024-11-09 06:18:03,167 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:18:03,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134170626] [2024-11-09 06:18:03,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134170626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:03,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:03,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:18:03,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309975179] [2024-11-09 06:18:03,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:03,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:18:03,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:03,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:18:03,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:18:03,170 INFO L87 Difference]: Start difference. First operand 108 states and 135 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:18:03,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:03,254 INFO L93 Difference]: Finished difference Result 119 states and 142 transitions. [2024-11-09 06:18:03,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:18:03,255 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2024-11-09 06:18:03,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:03,256 INFO L225 Difference]: With dead ends: 119 [2024-11-09 06:18:03,256 INFO L226 Difference]: Without dead ends: 116 [2024-11-09 06:18:03,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:18:03,257 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 30 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:03,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 83 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:18:03,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-09 06:18:03,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 109. [2024-11-09 06:18:03,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 91 states have internal predecessors, (104), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 06:18:03,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2024-11-09 06:18:03,285 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 30 [2024-11-09 06:18:03,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:03,285 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2024-11-09 06:18:03,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:18:03,289 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2024-11-09 06:18:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 06:18:03,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:03,291 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:03,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:18:03,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 06:18:03,492 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:03,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:03,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1695070897, now seen corresponding path program 1 times [2024-11-09 06:18:03,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:03,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391162655] [2024-11-09 06:18:03,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:03,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:18:03,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765182663] [2024-11-09 06:18:03,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:03,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:03,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:03,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:03,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:18:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:03,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:18:03,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:03,849 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:18:03,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:18:04,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:04,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391162655] [2024-11-09 06:18:04,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:18:04,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765182663] [2024-11-09 06:18:04,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765182663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:18:04,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1636983768] [2024-11-09 06:18:04,105 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:18:04,105 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:18:04,109 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:18:04,116 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:18:04,117 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:18:07,476 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:18:07,477 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:18:07,479 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:18:09,484 WARN L851 $PredicateComparison]: unable to prove that (and (<= 1 |c_#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_45| Int) (|v_ULTIMATE.start_main_~B~0#1_40| Int)) (let ((.cse0 (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296))) (and (let ((.cse2 (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse3 (= .cse2 |c_ULTIMATE.start_main_~r~0#1|))) (or (let ((.cse1 (select |c_#memory_int| 1))) (and (= (select |c_#valid| 0) 0) (= (select |c_#valid| 3) 1) (<= 1 .cse0) (<= .cse0 5) (= 2 (select |c_#length| 1)) (= (select |c_#valid| 1) 1) (= |v_ULTIMATE.start_main_~p~0#1_45| 1) (= (select |c_#length| 2) 10) (= |c_ULTIMATE.start_main_~d~0#1| .cse0) (= (select |c_#valid| 2) 1) (= (select .cse1 1) 0) (<= .cse2 5) .cse3 (= (select |c_#length| 3) 12) (= 48 (select .cse1 0)))) (let ((.cse5 (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2))) (let ((.cse4 (* .cse5 .cse0))) (and (<= 0 (+ .cse4 4611686018427387903)) (<= .cse4 4611686018427387904) (<= .cse5 4611686018427387904) (<= 0 (+ .cse5 4611686018427387903)) (= (mod |v_ULTIMATE.start_main_~p~0#1_45| 2) 0) (= (+ (* .cse4 2) |c_ULTIMATE.start_main_~d~0#1|) 0) .cse3 (<= 0 (+ .cse4 |c_ULTIMATE.start_main_~r~0#1|)))))))) (<= (+ 9223372036854775809 (* .cse0 |v_ULTIMATE.start_main_~p~0#1_45|)) 0)))) (= 0 |c_ULTIMATE.start_main_~q~0#1|)) is different from false [2024-11-09 06:18:14,967 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2293#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1_45| Int) (|v_ULTIMATE.start_main_~B~0#1_40| Int)) (and (or (and (= (select |#length| 3) 12) (= (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296) |ULTIMATE.start_main_~d~0#1|) (<= 1 (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) (<= (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296) 5) (= |v_ULTIMATE.start_main_~p~0#1_45| 1) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 5) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~r~0#1| (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select (select |#memory_int| 1) 0) 48) (= 10 (select |#length| 2)) (= (select (select |#memory_int| 1) 1) 0)) (and (<= 0 (+ (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) 4611686018427387903)) (<= (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) 4611686018427387904) (<= (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) 4611686018427387904) (<= 0 (+ (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) |ULTIMATE.start_main_~r~0#1|)) (<= 0 (+ (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) 4611686018427387903)) (= (+ (* (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) 2) |ULTIMATE.start_main_~d~0#1|) 0) (= (mod |v_ULTIMATE.start_main_~p~0#1_45| 2) 0) (= |ULTIMATE.start_main_~r~0#1| (mod |ULTIMATE.start_main_~A~0#1| 4294967296)))) (<= (+ 9223372036854775809 (* (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296) |v_ULTIMATE.start_main_~p~0#1_45|)) 0))))' at error location [2024-11-09 06:18:14,968 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:18:14,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:18:14,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 06:18:14,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953798882] [2024-11-09 06:18:14,969 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:18:14,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:18:14,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:14,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:18:14,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=532, Unknown=1, NotChecked=48, Total=702 [2024-11-09 06:18:14,972 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 7 states, 5 states have (on average 3.2) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 06:18:15,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:15,449 INFO L93 Difference]: Finished difference Result 125 states and 155 transitions. [2024-11-09 06:18:15,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:18:15,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 37 [2024-11-09 06:18:15,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:15,451 INFO L225 Difference]: With dead ends: 125 [2024-11-09 06:18:15,451 INFO L226 Difference]: Without dead ends: 117 [2024-11-09 06:18:15,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=167, Invalid=766, Unknown=1, NotChecked=58, Total=992 [2024-11-09 06:18:15,455 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 114 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:15,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 157 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:18:15,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-09 06:18:15,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-09 06:18:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 95 states have internal predecessors, (107), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-09 06:18:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2024-11-09 06:18:15,489 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 37 [2024-11-09 06:18:15,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:15,490 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2024-11-09 06:18:15,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 06:18:15,490 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2024-11-09 06:18:15,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 06:18:15,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:15,491 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:15,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:18:15,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 06:18:15,694 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:15,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:15,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1007590306, now seen corresponding path program 1 times [2024-11-09 06:18:15,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:15,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120879402] [2024-11-09 06:18:15,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:15,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:18:15,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660122260] [2024-11-09 06:18:15,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:15,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:15,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:15,733 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:15,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:18:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:15,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:18:15,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:15,984 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 06:18:15,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:18:16,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:16,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120879402] [2024-11-09 06:18:16,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:18:16,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660122260] [2024-11-09 06:18:16,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660122260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:18:16,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [911584774] [2024-11-09 06:18:16,195 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:18:16,197 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:18:16,197 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:18:16,197 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:18:16,198 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:18:17,961 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:18:17,963 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:18:17,965 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:18:19,163 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2782#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~B~0#1_41| Int) (|v_ULTIMATE.start_main_~p~0#1_52| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_41| 4294967296) |v_ULTIMATE.start_main_~p~0#1_52|))))' at error location [2024-11-09 06:18:19,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:18:19,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:18:19,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 06:18:19,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618978665] [2024-11-09 06:18:19,164 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:18:19,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:18:19,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:19,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:18:19,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2024-11-09 06:18:19,165 INFO L87 Difference]: Start difference. First operand 115 states and 141 transitions. Second operand has 7 states, 5 states have (on average 3.4) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 06:18:19,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:19,542 INFO L93 Difference]: Finished difference Result 187 states and 240 transitions. [2024-11-09 06:18:19,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:18:19,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 38 [2024-11-09 06:18:19,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:19,545 INFO L225 Difference]: With dead ends: 187 [2024-11-09 06:18:19,545 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 06:18:19,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=170, Invalid=760, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:18:19,548 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 163 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:19,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 195 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:18:19,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 06:18:19,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174. [2024-11-09 06:18:19,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.3671875) internal successors, (175), 145 states have internal predecessors, (175), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 06:18:19,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 227 transitions. [2024-11-09 06:18:19,579 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 227 transitions. Word has length 38 [2024-11-09 06:18:19,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:19,581 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 227 transitions. [2024-11-09 06:18:19,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 06:18:19,582 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 227 transitions. [2024-11-09 06:18:19,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 06:18:19,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:19,585 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:19,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 06:18:19,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:19,789 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:19,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:19,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1380873637, now seen corresponding path program 1 times [2024-11-09 06:18:19,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:19,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852772141] [2024-11-09 06:18:19,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:19,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:19,881 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 06:18:19,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:19,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852772141] [2024-11-09 06:18:19,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852772141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:19,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:19,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:18:19,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625799831] [2024-11-09 06:18:19,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:19,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:18:19,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:19,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:18:19,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:18:19,887 INFO L87 Difference]: Start difference. First operand 174 states and 227 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:18:20,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:20,330 INFO L93 Difference]: Finished difference Result 183 states and 236 transitions. [2024-11-09 06:18:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:18:20,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 42 [2024-11-09 06:18:20,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:20,333 INFO L225 Difference]: With dead ends: 183 [2024-11-09 06:18:20,334 INFO L226 Difference]: Without dead ends: 168 [2024-11-09 06:18:20,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:18:20,335 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 39 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:20,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 117 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:18:20,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-09 06:18:20,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 141. [2024-11-09 06:18:20,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 101 states have (on average 1.4257425742574257) internal successors, (144), 118 states have internal predecessors, (144), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:18:20,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2024-11-09 06:18:20,358 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 184 transitions. Word has length 42 [2024-11-09 06:18:20,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:20,358 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 184 transitions. [2024-11-09 06:18:20,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:18:20,358 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2024-11-09 06:18:20,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:18:20,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:20,359 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:20,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:18:20,360 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:20,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:20,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2071296717, now seen corresponding path program 1 times [2024-11-09 06:18:20,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:20,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833026732] [2024-11-09 06:18:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:20,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 06:18:20,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:20,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833026732] [2024-11-09 06:18:20,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833026732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:18:20,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176942047] [2024-11-09 06:18:20,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:20,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:20,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:20,444 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:20,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:18:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:20,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:18:20,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:20,542 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 06:18:20,543 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:18:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 06:18:20,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176942047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:18:20,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1015612005] [2024-11-09 06:18:20,621 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:18:20,621 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:18:20,622 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:18:20,622 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:18:20,622 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:18:21,981 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:18:21,982 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:18:21,984 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:18:22,959 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3921#(and (<= 4611686018427387904 (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (<= 1 |#StackHeapBarrier|) (<= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (<= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 9223372036854775807) (= |ULTIMATE.start_main_~q~0#1| 0))' at error location [2024-11-09 06:18:22,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:18:22,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:18:22,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-09 06:18:22,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474837186] [2024-11-09 06:18:22,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:18:22,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:18:22,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:22,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:18:22,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:18:22,961 INFO L87 Difference]: Start difference. First operand 141 states and 184 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 06:18:23,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:23,154 INFO L93 Difference]: Finished difference Result 251 states and 323 transitions. [2024-11-09 06:18:23,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:18:23,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 44 [2024-11-09 06:18:23,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:23,156 INFO L225 Difference]: With dead ends: 251 [2024-11-09 06:18:23,156 INFO L226 Difference]: Without dead ends: 249 [2024-11-09 06:18:23,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:18:23,157 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 129 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:23,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 189 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:18:23,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-09 06:18:23,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 199. [2024-11-09 06:18:23,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 149 states have (on average 1.4161073825503356) internal successors, (211), 166 states have internal predecessors, (211), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 06:18:23,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 271 transitions. [2024-11-09 06:18:23,180 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 271 transitions. Word has length 44 [2024-11-09 06:18:23,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:23,181 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 271 transitions. [2024-11-09 06:18:23,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 06:18:23,181 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 271 transitions. [2024-11-09 06:18:23,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 06:18:23,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:23,182 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:23,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:18:23,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 06:18:23,383 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:23,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:23,383 INFO L85 PathProgramCache]: Analyzing trace with hash 160131140, now seen corresponding path program 2 times [2024-11-09 06:18:23,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:23,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022333963] [2024-11-09 06:18:23,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:23,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:18:23,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831829973] [2024-11-09 06:18:23,402 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:18:23,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:23,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:23,404 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:23,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:18:23,462 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 06:18:23,462 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:18:23,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:18:23,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-09 06:18:23,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:18:24,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:24,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022333963] [2024-11-09 06:18:24,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:18:24,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831829973] [2024-11-09 06:18:24,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831829973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:18:24,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1865643829] [2024-11-09 06:18:24,227 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:18:24,227 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:18:24,227 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:18:24,228 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:18:24,228 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:18:25,522 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:18:25,523 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:18:25,525 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:18:26,598 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4712#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~B~0#1_42| Int) (|v_ULTIMATE.start_main_~p~0#1_66| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_42| 4294967296) |v_ULTIMATE.start_main_~p~0#1_66|))) (= |ULTIMATE.start_main_~q~0#1| 0))' at error location [2024-11-09 06:18:26,598 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:18:26,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:18:26,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:18:26,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545809311] [2024-11-09 06:18:26,599 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:18:26,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:18:26,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:26,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:18:26,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=806, Unknown=0, NotChecked=0, Total=992 [2024-11-09 06:18:26,601 INFO L87 Difference]: Start difference. First operand 199 states and 271 transitions. Second operand has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:18:27,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:27,405 INFO L93 Difference]: Finished difference Result 272 states and 367 transitions. [2024-11-09 06:18:27,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:18:27,405 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 55 [2024-11-09 06:18:27,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:27,407 INFO L225 Difference]: With dead ends: 272 [2024-11-09 06:18:27,407 INFO L226 Difference]: Without dead ends: 268 [2024-11-09 06:18:27,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=208, Invalid=914, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 06:18:27,409 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 152 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:27,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 258 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:18:27,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-09 06:18:27,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 199. [2024-11-09 06:18:27,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 149 states have (on average 1.4026845637583893) internal successors, (209), 166 states have internal predecessors, (209), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 06:18:27,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 269 transitions. [2024-11-09 06:18:27,433 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 269 transitions. Word has length 55 [2024-11-09 06:18:27,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:27,434 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 269 transitions. [2024-11-09 06:18:27,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:18:27,434 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 269 transitions. [2024-11-09 06:18:27,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 06:18:27,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:27,440 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:27,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 06:18:27,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 06:18:27,641 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:27,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:27,642 INFO L85 PathProgramCache]: Analyzing trace with hash -781600900, now seen corresponding path program 1 times [2024-11-09 06:18:27,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:27,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568564761] [2024-11-09 06:18:27,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:27,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:27,708 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 06:18:27,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:27,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568564761] [2024-11-09 06:18:27,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568564761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:27,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:27,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:18:27,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444677285] [2024-11-09 06:18:27,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:27,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:18:27,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:27,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:18:27,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:18:27,710 INFO L87 Difference]: Start difference. First operand 199 states and 269 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 06:18:27,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:27,831 INFO L93 Difference]: Finished difference Result 199 states and 269 transitions. [2024-11-09 06:18:27,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:18:27,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 62 [2024-11-09 06:18:27,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:27,833 INFO L225 Difference]: With dead ends: 199 [2024-11-09 06:18:27,833 INFO L226 Difference]: Without dead ends: 198 [2024-11-09 06:18:27,833 INFO L431 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 [2024-11-09 06:18:27,834 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 2 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:27,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 101 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:18:27,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-09 06:18:27,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-09 06:18:27,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 149 states have (on average 1.3825503355704698) internal successors, (206), 165 states have internal predecessors, (206), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-09 06:18:27,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 266 transitions. [2024-11-09 06:18:27,864 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 266 transitions. Word has length 62 [2024-11-09 06:18:27,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:27,864 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 266 transitions. [2024-11-09 06:18:27,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 06:18:27,866 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 266 transitions. [2024-11-09 06:18:27,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 06:18:27,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:27,868 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:27,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:18:27,868 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:27,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:27,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1540175985, now seen corresponding path program 1 times [2024-11-09 06:18:27,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:27,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585667721] [2024-11-09 06:18:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:27,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:28,059 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 06:18:28,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:28,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585667721] [2024-11-09 06:18:28,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585667721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:28,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:28,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:18:28,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70213376] [2024-11-09 06:18:28,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:28,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:18:28,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:28,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:18:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:18:28,062 INFO L87 Difference]: Start difference. First operand 198 states and 266 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:18:28,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:28,488 INFO L93 Difference]: Finished difference Result 359 states and 501 transitions. [2024-11-09 06:18:28,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:18:28,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2024-11-09 06:18:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:28,490 INFO L225 Difference]: With dead ends: 359 [2024-11-09 06:18:28,490 INFO L226 Difference]: Without dead ends: 358 [2024-11-09 06:18:28,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:18:28,491 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 94 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:28,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 228 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:18:28,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-09 06:18:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 300. [2024-11-09 06:18:28,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 239 states have (on average 1.4435146443514644) internal successors, (345), 255 states have internal predecessors, (345), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 06:18:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 429 transitions. [2024-11-09 06:18:28,524 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 429 transitions. Word has length 63 [2024-11-09 06:18:28,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:28,524 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 429 transitions. [2024-11-09 06:18:28,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-09 06:18:28,524 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 429 transitions. [2024-11-09 06:18:28,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 06:18:28,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:28,525 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:28,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:18:28,526 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:28,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:28,526 INFO L85 PathProgramCache]: Analyzing trace with hash 500815390, now seen corresponding path program 1 times [2024-11-09 06:18:28,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:28,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191189492] [2024-11-09 06:18:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:28,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:28,700 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 06:18:28,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:28,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191189492] [2024-11-09 06:18:28,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191189492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:18:28,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532591046] [2024-11-09 06:18:28,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:28,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:28,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:28,703 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:28,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 06:18:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:28,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:18:28,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 06:18:28,927 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:18:28,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532591046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:28,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:18:28,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 06:18:28,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296056090] [2024-11-09 06:18:28,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:28,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:18:28,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:28,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:18:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:18:28,930 INFO L87 Difference]: Start difference. First operand 300 states and 429 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:18:29,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:29,210 INFO L93 Difference]: Finished difference Result 359 states and 500 transitions. [2024-11-09 06:18:29,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:18:29,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2024-11-09 06:18:29,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:29,213 INFO L225 Difference]: With dead ends: 359 [2024-11-09 06:18:29,213 INFO L226 Difference]: Without dead ends: 358 [2024-11-09 06:18:29,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:18:29,214 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 48 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:29,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 97 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:18:29,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-09 06:18:29,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 309. [2024-11-09 06:18:29,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 248 states have (on average 1.4274193548387097) internal successors, (354), 264 states have internal predecessors, (354), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 06:18:29,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 438 transitions. [2024-11-09 06:18:29,262 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 438 transitions. Word has length 64 [2024-11-09 06:18:29,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:29,262 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 438 transitions. [2024-11-09 06:18:29,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:18:29,263 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 438 transitions. [2024-11-09 06:18:29,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 06:18:29,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:29,264 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:29,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 06:18:29,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 06:18:29,465 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:29,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:29,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1654591981, now seen corresponding path program 1 times [2024-11-09 06:18:29,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:29,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272946670] [2024-11-09 06:18:29,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:29,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:29,674 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 06:18:29,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:29,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272946670] [2024-11-09 06:18:29,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272946670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:18:29,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300072210] [2024-11-09 06:18:29,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:29,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:29,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:29,677 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:29,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 06:18:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:29,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:18:29,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:29,858 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 06:18:29,858 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:18:29,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300072210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:29,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:18:29,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 06:18:29,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736996278] [2024-11-09 06:18:29,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:29,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:18:29,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:29,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:18:29,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:18:29,859 INFO L87 Difference]: Start difference. First operand 309 states and 438 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:18:30,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:30,148 INFO L93 Difference]: Finished difference Result 316 states and 444 transitions. [2024-11-09 06:18:30,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:18:30,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2024-11-09 06:18:30,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:30,150 INFO L225 Difference]: With dead ends: 316 [2024-11-09 06:18:30,150 INFO L226 Difference]: Without dead ends: 314 [2024-11-09 06:18:30,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:18:30,151 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 28 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:30,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 79 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:18:30,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-09 06:18:30,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 312. [2024-11-09 06:18:30,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 251 states have (on average 1.4143426294820718) internal successors, (355), 267 states have internal predecessors, (355), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 06:18:30,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 439 transitions. [2024-11-09 06:18:30,195 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 439 transitions. Word has length 65 [2024-11-09 06:18:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:30,195 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 439 transitions. [2024-11-09 06:18:30,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 06:18:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 439 transitions. [2024-11-09 06:18:30,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 06:18:30,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:30,200 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:30,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 06:18:30,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 06:18:30,400 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:30,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:30,401 INFO L85 PathProgramCache]: Analyzing trace with hash -924991819, now seen corresponding path program 1 times [2024-11-09 06:18:30,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:30,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312560226] [2024-11-09 06:18:30,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:30,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:18:30,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1391702933] [2024-11-09 06:18:30,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:30,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:30,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:30,428 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:30,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 06:18:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:30,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:18:30,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:31,106 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 06:18:31,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:18:31,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:31,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312560226] [2024-11-09 06:18:31,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:18:31,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391702933] [2024-11-09 06:18:31,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391702933] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:18:31,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [565407098] [2024-11-09 06:18:31,730 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:18:31,730 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:18:31,731 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:18:31,731 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:18:31,731 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:18:35,224 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:18:35,225 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:18:35,226 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:18:52,309 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8833#(exists ((|v_ULTIMATE.start_main_~B~0#1_43| Int) (|v_ULTIMATE.start_main_~q~0#1_44| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (+ 9223372036854775809 (* (mod |v_ULTIMATE.start_main_~B~0#1_43| 4294967296) |v_ULTIMATE.start_main_~q~0#1_44|)) 0) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_44| 9223372036854775808)) (exists ((|v_ULTIMATE.start_main_~p~0#1_78| Int)) (and (<= (div |v_ULTIMATE.start_main_~p~0#1_78| 2) 9223372036854775807) (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_78| 2) 0)) (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_78| 2)) 0)) (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_78| 2)))) (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_78| 2) 0)) (= |ULTIMATE.start_main_~p~0#1| (+ (div |v_ULTIMATE.start_main_~p~0#1_78| 2) 1)) (<= (+ |v_ULTIMATE.start_main_~p~0#1_78| 1) 0)) (and (= |ULTIMATE.start_main_~p~0#1| (div |v_ULTIMATE.start_main_~p~0#1_78| 2)) (or (= (mod |v_ULTIMATE.start_main_~p~0#1_78| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_78| 1))))))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807)))' at error location [2024-11-09 06:18:52,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:18:52,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:18:52,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:18:52,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679711467] [2024-11-09 06:18:52,310 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:18:52,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:18:52,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:52,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:18:52,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1629, Unknown=3, NotChecked=0, Total=1892 [2024-11-09 06:18:52,312 INFO L87 Difference]: Start difference. First operand 312 states and 439 transitions. Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:18:53,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:53,099 INFO L93 Difference]: Finished difference Result 389 states and 542 transitions. [2024-11-09 06:18:53,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:18:53,100 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 67 [2024-11-09 06:18:53,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:53,102 INFO L225 Difference]: With dead ends: 389 [2024-11-09 06:18:53,102 INFO L226 Difference]: Without dead ends: 388 [2024-11-09 06:18:53,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=277, Invalid=1790, Unknown=3, NotChecked=0, Total=2070 [2024-11-09 06:18:53,103 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 146 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:53,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 147 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:18:53,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-09 06:18:53,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 361. [2024-11-09 06:18:53,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 294 states have (on average 1.3877551020408163) internal successors, (408), 310 states have internal predecessors, (408), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-09 06:18:53,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 504 transitions. [2024-11-09 06:18:53,154 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 504 transitions. Word has length 67 [2024-11-09 06:18:53,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:53,154 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 504 transitions. [2024-11-09 06:18:53,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:18:53,155 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 504 transitions. [2024-11-09 06:18:53,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 06:18:53,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:53,156 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:18:53,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 06:18:53,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 06:18:53,359 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:18:53,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:53,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1390024762, now seen corresponding path program 1 times [2024-11-09 06:18:53,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:53,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820883570] [2024-11-09 06:18:53,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:53,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:18:53,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1613470666] [2024-11-09 06:18:53,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:53,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:18:53,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:18:53,384 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:18:53,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 06:18:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:53,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:18:53,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:18:54,113 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 06:18:54,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:18:54,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:54,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820883570] [2024-11-09 06:18:54,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:18:54,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613470666] [2024-11-09 06:18:54,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613470666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:18:54,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [786310347] [2024-11-09 06:18:54,510 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:18:54,511 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:18:54,511 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:18:54,511 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:18:54,511 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:18:56,663 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:18:56,664 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:18:56,665 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:19:09,689 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10027#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~B~0#1_44| Int) (|v_ULTIMATE.start_main_~q~0#1_50| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_50| (mod |v_ULTIMATE.start_main_~B~0#1_44| 4294967296))) (<= |v_ULTIMATE.start_main_~q~0#1_50| 9223372036854775807))))' at error location [2024-11-09 06:19:09,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:19:09,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:19:09,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:19:09,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097319827] [2024-11-09 06:19:09,690 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:19:09,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:19:09,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:09,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:19:09,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=1683, Unknown=1, NotChecked=0, Total=1980 [2024-11-09 06:19:09,692 INFO L87 Difference]: Start difference. First operand 361 states and 504 transitions. Second operand has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:19:10,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:10,170 INFO L93 Difference]: Finished difference Result 424 states and 591 transitions. [2024-11-09 06:19:10,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:19:10,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 68 [2024-11-09 06:19:10,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:10,173 INFO L225 Difference]: With dead ends: 424 [2024-11-09 06:19:10,173 INFO L226 Difference]: Without dead ends: 423 [2024-11-09 06:19:10,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=305, Invalid=1764, Unknown=1, NotChecked=0, Total=2070 [2024-11-09 06:19:10,175 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 100 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:10,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 177 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:19:10,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-09 06:19:10,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 410. [2024-11-09 06:19:10,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 337 states have (on average 1.3620178041543027) internal successors, (459), 353 states have internal predecessors, (459), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:19:10,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 567 transitions. [2024-11-09 06:19:10,226 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 567 transitions. Word has length 68 [2024-11-09 06:19:10,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:10,226 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 567 transitions. [2024-11-09 06:19:10,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:19:10,226 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 567 transitions. [2024-11-09 06:19:10,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 06:19:10,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:10,227 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:10,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 06:19:10,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 06:19:10,428 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:19:10,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:10,429 INFO L85 PathProgramCache]: Analyzing trace with hash 141094743, now seen corresponding path program 1 times [2024-11-09 06:19:10,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:10,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844173849] [2024-11-09 06:19:10,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:10,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:10,535 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-09 06:19:10,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:10,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844173849] [2024-11-09 06:19:10,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844173849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:10,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:19:10,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:19:10,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334031533] [2024-11-09 06:19:10,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:10,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:19:10,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:10,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:19:10,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:19:10,537 INFO L87 Difference]: Start difference. First operand 410 states and 567 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 06:19:10,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:10,793 INFO L93 Difference]: Finished difference Result 410 states and 567 transitions. [2024-11-09 06:19:10,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:19:10,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2024-11-09 06:19:10,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:10,796 INFO L225 Difference]: With dead ends: 410 [2024-11-09 06:19:10,796 INFO L226 Difference]: Without dead ends: 409 [2024-11-09 06:19:10,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:19:10,797 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 71 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:10,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 87 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:19:10,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-09 06:19:10,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 397. [2024-11-09 06:19:10,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 325 states have (on average 1.3323076923076924) internal successors, (433), 340 states have internal predecessors, (433), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:19:10,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 541 transitions. [2024-11-09 06:19:10,852 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 541 transitions. Word has length 69 [2024-11-09 06:19:10,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:10,855 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 541 transitions. [2024-11-09 06:19:10,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 06:19:10,856 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 541 transitions. [2024-11-09 06:19:10,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 06:19:10,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:10,857 INFO L215 NwaCegarLoop]: trace histogram [11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:10,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:19:10,857 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:19:10,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:10,857 INFO L85 PathProgramCache]: Analyzing trace with hash 135345122, now seen corresponding path program 3 times [2024-11-09 06:19:10,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:10,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841387486] [2024-11-09 06:19:10,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:10,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:19:10,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1283152883] [2024-11-09 06:19:10,888 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:19:10,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:10,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:19:10,891 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:19:10,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 06:19:10,956 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:19:10,956 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:19:10,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:19:10,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:19:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-09 06:19:11,309 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:19:11,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:11,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841387486] [2024-11-09 06:19:11,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:19:11,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283152883] [2024-11-09 06:19:11,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283152883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:19:11,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1042254373] [2024-11-09 06:19:11,466 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:19:11,467 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:19:11,467 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:19:11,467 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:19:11,467 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:19:12,404 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:19:12,405 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:19:12,407 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:19:13,747 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12317#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~B~0#1_45| Int) (|v_ULTIMATE.start_main_~p~0#1_97| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_45| 4294967296) |v_ULTIMATE.start_main_~p~0#1_97|))))' at error location [2024-11-09 06:19:13,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:19:13,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:19:13,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:19:13,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940049946] [2024-11-09 06:19:13,748 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:19:13,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:19:13,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:13,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:19:13,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=771, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:19:13,750 INFO L87 Difference]: Start difference. First operand 397 states and 541 transitions. Second operand has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-09 06:19:14,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:14,738 INFO L93 Difference]: Finished difference Result 430 states and 575 transitions. [2024-11-09 06:19:14,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:19:14,739 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 72 [2024-11-09 06:19:14,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:14,741 INFO L225 Difference]: With dead ends: 430 [2024-11-09 06:19:14,741 INFO L226 Difference]: Without dead ends: 426 [2024-11-09 06:19:14,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=230, Invalid=1252, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:19:14,743 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 158 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:14,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 376 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:19:14,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-09 06:19:14,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 327. [2024-11-09 06:19:14,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 263 states have (on average 1.3003802281368821) internal successors, (342), 278 states have internal predecessors, (342), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 06:19:14,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 434 transitions. [2024-11-09 06:19:14,788 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 434 transitions. Word has length 72 [2024-11-09 06:19:14,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:14,789 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 434 transitions. [2024-11-09 06:19:14,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-09 06:19:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 434 transitions. [2024-11-09 06:19:14,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 06:19:14,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:14,790 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:14,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 06:19:14,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:14,995 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:19:14,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:14,996 INFO L85 PathProgramCache]: Analyzing trace with hash 78969820, now seen corresponding path program 1 times [2024-11-09 06:19:14,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:14,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115984598] [2024-11-09 06:19:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:14,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:19:15,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218560433] [2024-11-09 06:19:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:15,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:15,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:19:15,045 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:19:15,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 06:19:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:15,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 06:19:15,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:19:16,065 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 06:19:16,065 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:19:18,214 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 06:19:18,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:18,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115984598] [2024-11-09 06:19:18,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:19:18,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218560433] [2024-11-09 06:19:18,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218560433] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:19:18,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1011082932] [2024-11-09 06:19:18,216 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:19:18,216 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:19:18,217 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:19:18,217 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:19:18,217 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:19:20,309 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:19:20,310 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:19:20,310 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:19:38,563 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13699#(exists ((|v_ULTIMATE.start_main_~q~0#1_57| Int) (|v_ULTIMATE.start_main_~B~0#1_46| Int) (|v_ULTIMATE.start_main_~r~0#1_51| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~q~0#1_57| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_57| 9223372036854775808)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~r~0#1_51| (* |v_ULTIMATE.start_main_~q~0#1_57| (mod |v_ULTIMATE.start_main_~B~0#1_46| 4294967296)))) (<= (* |v_ULTIMATE.start_main_~q~0#1_57| (mod |v_ULTIMATE.start_main_~B~0#1_46| 4294967296)) 9223372036854775807)))' at error location [2024-11-09 06:19:38,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:19:38,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:19:38,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2024-11-09 06:19:38,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724204190] [2024-11-09 06:19:38,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:19:38,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 06:19:38,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:38,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 06:19:38,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=2405, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 06:19:38,567 INFO L87 Difference]: Start difference. First operand 327 states and 434 transitions. Second operand has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-09 06:19:46,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:46,132 INFO L93 Difference]: Finished difference Result 475 states and 631 transitions. [2024-11-09 06:19:46,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:19:46,133 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 70 [2024-11-09 06:19:46,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:46,135 INFO L225 Difference]: With dead ends: 475 [2024-11-09 06:19:46,135 INFO L226 Difference]: Without dead ends: 357 [2024-11-09 06:19:46,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2113 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=795, Invalid=5367, Unknown=0, NotChecked=0, Total=6162 [2024-11-09 06:19:46,138 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 350 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:46,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 282 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-09 06:19:46,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-09 06:19:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 320. [2024-11-09 06:19:46,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 260 states have (on average 1.2961538461538462) internal successors, (337), 275 states have internal predecessors, (337), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 06:19:46,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 421 transitions. [2024-11-09 06:19:46,197 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 421 transitions. Word has length 70 [2024-11-09 06:19:46,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:46,198 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 421 transitions. [2024-11-09 06:19:46,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-09 06:19:46,198 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 421 transitions. [2024-11-09 06:19:46,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 06:19:46,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:46,199 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:46,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 06:19:46,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:46,404 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:19:46,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:46,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1718543877, now seen corresponding path program 1 times [2024-11-09 06:19:46,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:46,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546061259] [2024-11-09 06:19:46,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:46,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:19:46,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139362069] [2024-11-09 06:19:46,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:46,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:19:46,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:19:46,438 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:19:46,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 06:19:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:46,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:19:46,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:19:47,084 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 06:19:47,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:19:47,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:47,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546061259] [2024-11-09 06:19:47,633 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:19:47,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139362069] [2024-11-09 06:19:47,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139362069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:19:47,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2010850801] [2024-11-09 06:19:47,635 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 06:19:47,635 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:19:47,635 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:19:47,636 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:19:47,636 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:19:49,794 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:19:49,795 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:19:49,797 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:20:03,369 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15065#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_63| Int) (|v_ULTIMATE.start_main_~d~0#1_116| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_63| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~q~0#1_63| 9223372036854775807) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_63| |v_ULTIMATE.start_main_~d~0#1_116|)) 0))))' at error location [2024-11-09 06:20:03,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:20:03,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:20:03,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 06:20:03,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375231273] [2024-11-09 06:20:03,370 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:20:03,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:20:03,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:03,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:20:03,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=1607, Unknown=1, NotChecked=0, Total=1892 [2024-11-09 06:20:03,372 INFO L87 Difference]: Start difference. First operand 320 states and 421 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-09 06:20:03,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:03,816 INFO L93 Difference]: Finished difference Result 325 states and 428 transitions. [2024-11-09 06:20:03,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:20:03,817 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 80 [2024-11-09 06:20:03,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:03,820 INFO L225 Difference]: With dead ends: 325 [2024-11-09 06:20:03,820 INFO L226 Difference]: Without dead ends: 324 [2024-11-09 06:20:03,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=311, Invalid=1850, Unknown=1, NotChecked=0, Total=2162 [2024-11-09 06:20:03,822 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 30 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:03,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 213 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:20:03,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-09 06:20:03,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 321. [2024-11-09 06:20:03,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 261 states have (on average 1.2950191570881227) internal successors, (338), 276 states have internal predecessors, (338), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 06:20:03,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 422 transitions. [2024-11-09 06:20:03,900 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 422 transitions. Word has length 80 [2024-11-09 06:20:03,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:03,900 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 422 transitions. [2024-11-09 06:20:03,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-09 06:20:03,901 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 422 transitions. [2024-11-09 06:20:03,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:20:03,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:03,904 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:03,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 06:20:04,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:20:04,105 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:20:04,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:04,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1735252512, now seen corresponding path program 1 times [2024-11-09 06:20:04,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:04,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090820831] [2024-11-09 06:20:04,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:04,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:20:04,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1833066114] [2024-11-09 06:20:04,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:04,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:20:04,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:20:04,139 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:20:04,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 06:20:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:04,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:20:04,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:20:04,847 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 06:20:04,848 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:20:06,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:06,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090820831] [2024-11-09 06:20:06,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:20:06,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833066114] [2024-11-09 06:20:06,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833066114] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:20:06,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2125324826] [2024-11-09 06:20:06,657 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-09 06:20:06,658 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:20:06,658 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:20:06,658 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:20:06,658 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:20:08,730 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:20:08,731 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:20:08,731 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:20:16,775 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16218#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_69| Int) (|v_ULTIMATE.start_main_~d~0#1_127| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_69| |v_ULTIMATE.start_main_~d~0#1_127|)) (<= |v_ULTIMATE.start_main_~q~0#1_69| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_69| 9223372036854775808)))))' at error location [2024-11-09 06:20:16,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:20:16,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:20:16,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 06:20:16,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19521246] [2024-11-09 06:20:16,775 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:20:16,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:20:16,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:16,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:20:16,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=2025, Unknown=2, NotChecked=0, Total=2352 [2024-11-09 06:20:16,777 INFO L87 Difference]: Start difference. First operand 321 states and 422 transitions. Second operand has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 06:20:17,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:17,691 INFO L93 Difference]: Finished difference Result 528 states and 707 transitions. [2024-11-09 06:20:17,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:20:17,692 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 81 [2024-11-09 06:20:17,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:17,694 INFO L225 Difference]: With dead ends: 528 [2024-11-09 06:20:17,694 INFO L226 Difference]: Without dead ends: 354 [2024-11-09 06:20:17,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1203 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=427, Invalid=2877, Unknown=2, NotChecked=0, Total=3306 [2024-11-09 06:20:17,698 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 102 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:17,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 300 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:20:17,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-09 06:20:17,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 349. [2024-11-09 06:20:17,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 286 states have (on average 1.2937062937062938) internal successors, (370), 300 states have internal predecessors, (370), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 06:20:17,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 462 transitions. [2024-11-09 06:20:17,762 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 462 transitions. Word has length 81 [2024-11-09 06:20:17,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:17,762 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 462 transitions. [2024-11-09 06:20:17,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 06:20:17,763 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 462 transitions. [2024-11-09 06:20:17,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 06:20:17,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:17,764 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:17,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 06:20:17,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:20:17,968 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:20:17,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:17,968 INFO L85 PathProgramCache]: Analyzing trace with hash 2041747101, now seen corresponding path program 1 times [2024-11-09 06:20:17,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:17,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114469494] [2024-11-09 06:20:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:17,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:18,065 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-09 06:20:18,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:18,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114469494] [2024-11-09 06:20:18,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114469494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:20:18,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:20:18,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:20:18,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702097905] [2024-11-09 06:20:18,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:20:18,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:20:18,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:18,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:20:18,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:20:18,068 INFO L87 Difference]: Start difference. First operand 349 states and 462 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 06:20:18,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:18,753 INFO L93 Difference]: Finished difference Result 349 states and 462 transitions. [2024-11-09 06:20:18,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:20:18,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 82 [2024-11-09 06:20:18,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:18,755 INFO L225 Difference]: With dead ends: 349 [2024-11-09 06:20:18,755 INFO L226 Difference]: Without dead ends: 348 [2024-11-09 06:20:18,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:20:18,756 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 45 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:18,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 123 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:20:18,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-09 06:20:18,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-11-09 06:20:18,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 286 states have (on average 1.2902097902097902) internal successors, (369), 299 states have internal predecessors, (369), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 06:20:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 461 transitions. [2024-11-09 06:20:18,797 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 461 transitions. Word has length 82 [2024-11-09 06:20:18,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:18,798 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 461 transitions. [2024-11-09 06:20:18,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 06:20:18,798 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 461 transitions. [2024-11-09 06:20:18,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 06:20:18,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:18,800 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:18,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 06:20:18,800 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:20:18,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:18,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1130349182, now seen corresponding path program 1 times [2024-11-09 06:20:18,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:18,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093217614] [2024-11-09 06:20:18,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:18,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:20:18,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991709159] [2024-11-09 06:20:18,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:18,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:20:18,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:20:18,826 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:20:18,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 06:20:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:20:18,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:20:18,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:20:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 06:20:19,662 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:20:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 06:20:22,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:22,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093217614] [2024-11-09 06:20:22,081 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:20:22,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991709159] [2024-11-09 06:20:22,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991709159] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:20:22,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2131782291] [2024-11-09 06:20:22,084 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2024-11-09 06:20:22,084 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:20:22,085 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:20:22,085 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:20:22,085 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:20:24,485 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:20:24,486 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:20:24,488 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:20:33,589 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18686#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~d~0#1_140| Int) (|v_ULTIMATE.start_main_~q~0#1_76| Int)) (and (<= (* |v_ULTIMATE.start_main_~q~0#1_76| |v_ULTIMATE.start_main_~d~0#1_140|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_76| |v_ULTIMATE.start_main_~d~0#1_140|))) (<= |v_ULTIMATE.start_main_~q~0#1_76| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_76| 9223372036854775808)))))' at error location [2024-11-09 06:20:33,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:20:33,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:20:33,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2024-11-09 06:20:33,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153401364] [2024-11-09 06:20:33,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:20:33,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 06:20:33,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:20:33,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 06:20:33,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=2388, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 06:20:33,592 INFO L87 Difference]: Start difference. First operand 348 states and 461 transitions. Second operand has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-09 06:20:37,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:20:37,085 INFO L93 Difference]: Finished difference Result 386 states and 505 transitions. [2024-11-09 06:20:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 06:20:37,085 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 83 [2024-11-09 06:20:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:20:37,087 INFO L225 Difference]: With dead ends: 386 [2024-11-09 06:20:37,087 INFO L226 Difference]: Without dead ends: 379 [2024-11-09 06:20:37,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1599 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=535, Invalid=3755, Unknown=0, NotChecked=0, Total=4290 [2024-11-09 06:20:37,090 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 128 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:20:37,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 285 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 06:20:37,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-09 06:20:37,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 345. [2024-11-09 06:20:37,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 283 states have (on average 1.2791519434628975) internal successors, (362), 296 states have internal predecessors, (362), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 06:20:37,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 454 transitions. [2024-11-09 06:20:37,162 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 454 transitions. Word has length 83 [2024-11-09 06:20:37,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:20:37,162 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 454 transitions. [2024-11-09 06:20:37,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-09 06:20:37,163 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 454 transitions. [2024-11-09 06:20:37,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:20:37,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:37,164 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:37,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 06:20:37,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 06:20:37,365 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:20:37,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:37,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1122569555, now seen corresponding path program 2 times [2024-11-09 06:20:37,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:37,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478112790] [2024-11-09 06:20:37,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:37,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:20:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:20:37,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625448064] [2024-11-09 06:20:37,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:20:37,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:20:37,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:20:37,413 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:20:37,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 06:20:37,478 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 06:20:37,478 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:20:37,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:20:37,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:20:53,842 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-09 06:20:53,843 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:20:54,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:20:54,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478112790] [2024-11-09 06:20:54,851 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:20:54,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625448064] [2024-11-09 06:20:54,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625448064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:20:54,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [555176116] [2024-11-09 06:20:54,853 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:20:54,853 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:20:54,853 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:20:54,853 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:20:54,854 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:20:56,869 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:20:56,870 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:20:56,871 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:21:13,129 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19931#(exists ((|v_ULTIMATE.start_main_~q~0#1_82| Int) (|v_ULTIMATE.start_main_~B~0#1_49| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_82| 9223372036854775808)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_82| (mod |v_ULTIMATE.start_main_~B~0#1_49| 4294967296))) 0) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~p~0#1_153| Int)) (and (<= (div |v_ULTIMATE.start_main_~p~0#1_153| 2) 9223372036854775807) (or (and (<= (+ |v_ULTIMATE.start_main_~p~0#1_153| 1) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_153| 2) 0)) (= |ULTIMATE.start_main_~p~0#1| (+ (div |v_ULTIMATE.start_main_~p~0#1_153| 2) 1))) (and (or (= (mod |v_ULTIMATE.start_main_~p~0#1_153| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_153| 1))) (= |ULTIMATE.start_main_~p~0#1| (div |v_ULTIMATE.start_main_~p~0#1_153| 2)))) (or (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_153| 2))) (and (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_153| 2)) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_153| 2) 0))))))))' at error location [2024-11-09 06:21:13,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:21:13,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:21:13,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:21:13,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682613972] [2024-11-09 06:21:13,130 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:21:13,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:21:13,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:21:13,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:21:13,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=1595, Unknown=1, NotChecked=0, Total=1892 [2024-11-09 06:21:13,133 INFO L87 Difference]: Start difference. First operand 345 states and 454 transitions. Second operand has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 06:21:15,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:21:17,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:21:19,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:21:21,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:21:23,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:21:28,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:21:32,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:21:33,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:21:33,265 INFO L93 Difference]: Finished difference Result 409 states and 543 transitions. [2024-11-09 06:21:33,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:21:33,265 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 84 [2024-11-09 06:21:33,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:21:33,267 INFO L225 Difference]: With dead ends: 409 [2024-11-09 06:21:33,267 INFO L226 Difference]: Without dead ends: 408 [2024-11-09 06:21:33,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 969 ImplicationChecksByTransitivity, 27.4s TimeCoverageRelationStatistics Valid=369, Invalid=2080, Unknown=1, NotChecked=0, Total=2450 [2024-11-09 06:21:33,268 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 57 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 16 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:21:33,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 146 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 371 Invalid, 6 Unknown, 0 Unchecked, 15.5s Time] [2024-11-09 06:21:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-09 06:21:33,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 383. [2024-11-09 06:21:33,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 317 states have (on average 1.277602523659306) internal successors, (405), 330 states have internal predecessors, (405), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 06:21:33,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 505 transitions. [2024-11-09 06:21:33,342 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 505 transitions. Word has length 84 [2024-11-09 06:21:33,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:21:33,343 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 505 transitions. [2024-11-09 06:21:33,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 06:21:33,343 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 505 transitions. [2024-11-09 06:21:33,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 06:21:33,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:21:33,344 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:21:33,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 06:21:33,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 06:21:33,545 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:21:33,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:21:33,545 INFO L85 PathProgramCache]: Analyzing trace with hash 439917916, now seen corresponding path program 2 times [2024-11-09 06:21:33,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:21:33,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368455230] [2024-11-09 06:21:33,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:21:33,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:21:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:21:33,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076452916] [2024-11-09 06:21:33,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:21:33,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:21:33,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:21:33,582 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:21:33,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 06:21:33,651 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 06:21:33,652 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:21:33,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:21:33,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:21:50,562 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-09 06:21:50,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:21:51,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:21:51,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368455230] [2024-11-09 06:21:51,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:21:51,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076452916] [2024-11-09 06:21:51,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076452916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:21:51,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1826934607] [2024-11-09 06:21:51,769 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:21:51,769 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:21:51,770 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:21:51,770 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:21:51,770 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:21:53,758 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:21:53,759 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:21:53,760 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:22:08,448 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21236#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~B~0#1_52| Int) (|v_ULTIMATE.start_main_~q~0#1_88| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_88| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_88| (mod |v_ULTIMATE.start_main_~B~0#1_52| 4294967296))))))' at error location [2024-11-09 06:22:08,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:22:08,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:22:08,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-09 06:22:08,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820271759] [2024-11-09 06:22:08,449 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:22:08,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:22:08,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:22:08,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:22:08,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=2002, Unknown=3, NotChecked=0, Total=2352 [2024-11-09 06:22:08,450 INFO L87 Difference]: Start difference. First operand 383 states and 505 transitions. Second operand has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 06:22:10,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:22:15,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:22:17,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:22:19,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:22:21,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:22:26,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:22:28,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:22:32,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:22:34,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:22:39,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:39,224 INFO L93 Difference]: Finished difference Result 409 states and 538 transitions. [2024-11-09 06:22:39,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:22:39,224 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 85 [2024-11-09 06:22:39,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:39,226 INFO L225 Difference]: With dead ends: 409 [2024-11-09 06:22:39,226 INFO L226 Difference]: Without dead ends: 408 [2024-11-09 06:22:39,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1305 ImplicationChecksByTransitivity, 32.7s TimeCoverageRelationStatistics Valid=499, Invalid=3036, Unknown=5, NotChecked=0, Total=3540 [2024-11-09 06:22:39,227 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 150 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 24 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:39,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 166 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 410 Invalid, 9 Unknown, 0 Unchecked, 19.7s Time] [2024-11-09 06:22:39,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-09 06:22:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 383. [2024-11-09 06:22:39,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 317 states have (on average 1.2618296529968454) internal successors, (400), 330 states have internal predecessors, (400), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 06:22:39,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 500 transitions. [2024-11-09 06:22:39,308 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 500 transitions. Word has length 85 [2024-11-09 06:22:39,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:39,309 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 500 transitions. [2024-11-09 06:22:39,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 06:22:39,309 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 500 transitions. [2024-11-09 06:22:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 06:22:39,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:39,310 INFO L215 NwaCegarLoop]: trace histogram [14, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:39,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 06:22:39,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 06:22:39,511 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:22:39,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:39,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1149523972, now seen corresponding path program 4 times [2024-11-09 06:22:39,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:22:39,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579486049] [2024-11-09 06:22:39,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:39,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:22:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:39,835 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 33 proven. 55 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-09 06:22:39,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:22:39,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579486049] [2024-11-09 06:22:39,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579486049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:22:39,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34113167] [2024-11-09 06:22:39,835 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 06:22:39,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:22:39,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:22:39,838 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:22:39,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 06:22:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:39,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:22:39,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:22:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 54 proven. 34 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-09 06:22:40,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:22:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 32 proven. 56 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-09 06:22:40,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34113167] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:22:40,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [106034939] [2024-11-09 06:22:40,877 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-09 06:22:40,877 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:22:40,878 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:22:40,878 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:22:40,878 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:22:41,746 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-09 06:22:41,748 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:22:41,749 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:22:43,348 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22786#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~B~0#1_54| Int) (|v_ULTIMATE.start_main_~p~0#1_175| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_54| 4294967296) |v_ULTIMATE.start_main_~p~0#1_175|))) (= |ULTIMATE.start_main_~q~0#1| 0))' at error location [2024-11-09 06:22:43,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:22:43,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:22:43,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2024-11-09 06:22:43,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900308716] [2024-11-09 06:22:43,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:22:43,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 06:22:43,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:22:43,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 06:22:43,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1104, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 06:22:43,351 INFO L87 Difference]: Start difference. First operand 383 states and 500 transitions. Second operand has 19 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 17 states have call successors, (45), 1 states have call predecessors, (45), 2 states have return successors, (47), 17 states have call predecessors, (47), 17 states have call successors, (47) [2024-11-09 06:22:45,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:45,434 INFO L93 Difference]: Finished difference Result 562 states and 721 transitions. [2024-11-09 06:22:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:22:45,435 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 17 states have call successors, (45), 1 states have call predecessors, (45), 2 states have return successors, (47), 17 states have call predecessors, (47), 17 states have call successors, (47) Word has length 89 [2024-11-09 06:22:45,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:45,437 INFO L225 Difference]: With dead ends: 562 [2024-11-09 06:22:45,437 INFO L226 Difference]: Without dead ends: 420 [2024-11-09 06:22:45,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=434, Invalid=2322, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 06:22:45,438 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 503 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:45,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 571 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:22:45,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-09 06:22:45,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 287. [2024-11-09 06:22:45,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 237 states have (on average 1.1983122362869199) internal successors, (284), 245 states have internal predecessors, (284), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-09 06:22:45,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 362 transitions. [2024-11-09 06:22:45,502 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 362 transitions. Word has length 89 [2024-11-09 06:22:45,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:45,503 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 362 transitions. [2024-11-09 06:22:45,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 17 states have call successors, (45), 1 states have call predecessors, (45), 2 states have return successors, (47), 17 states have call predecessors, (47), 17 states have call successors, (47) [2024-11-09 06:22:45,503 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 362 transitions. [2024-11-09 06:22:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 06:22:45,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:45,504 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:45,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 06:22:45,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 06:22:45,705 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:22:45,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:45,705 INFO L85 PathProgramCache]: Analyzing trace with hash 344527559, now seen corresponding path program 1 times [2024-11-09 06:22:45,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:22:45,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386313814] [2024-11-09 06:22:45,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:45,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:22:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:46,029 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-09 06:22:46,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:22:46,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386313814] [2024-11-09 06:22:46,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386313814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:22:46,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992911347] [2024-11-09 06:22:46,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:46,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:22:46,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:22:46,032 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:22:46,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 06:22:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:46,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:22:46,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:22:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 06:22:46,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:22:46,475 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 06:22:46,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992911347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:22:46,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1576702406] [2024-11-09 06:22:46,476 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:22:46,477 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:22:46,477 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:22:46,477 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:22:46,477 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:22:48,474 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:22:48,475 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:22:48,476 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:23:36,579 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24376#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_188| Int)) (and (or (and (<= (+ |v_ULTIMATE.start_main_~p~0#1_188| 1) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_188| 2) 0)) (= |ULTIMATE.start_main_~p~0#1| (+ (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 1))) (and (or (= (mod |v_ULTIMATE.start_main_~p~0#1_188| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_188| 1))) (= (div |v_ULTIMATE.start_main_~p~0#1_188| 2) |ULTIMATE.start_main_~p~0#1|))) (or (< (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775807) (= (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775807)) (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_188| 2) 0)) (= (+ (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775809) 0)) (< 0 (+ (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775809))))))' at error location [2024-11-09 06:23:36,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:23:36,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:23:36,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-11-09 06:23:36,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829260124] [2024-11-09 06:23:36,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:23:36,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:23:36,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:36,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:23:36,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1570, Unknown=23, NotChecked=0, Total=1806 [2024-11-09 06:23:36,582 INFO L87 Difference]: Start difference. First operand 287 states and 362 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-09 06:23:37,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:37,573 INFO L93 Difference]: Finished difference Result 496 states and 627 transitions. [2024-11-09 06:23:37,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:23:37,574 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 86 [2024-11-09 06:23:37,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:37,576 INFO L225 Difference]: With dead ends: 496 [2024-11-09 06:23:37,576 INFO L226 Difference]: Without dead ends: 361 [2024-11-09 06:23:37,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 48.5s TimeCoverageRelationStatistics Valid=286, Invalid=2553, Unknown=23, NotChecked=0, Total=2862 [2024-11-09 06:23:37,578 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 177 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:37,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 416 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:23:37,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-09 06:23:37,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 244. [2024-11-09 06:23:37,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 198 states have (on average 1.2171717171717171) internal successors, (241), 206 states have internal predecessors, (241), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-09 06:23:37,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 311 transitions. [2024-11-09 06:23:37,643 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 311 transitions. Word has length 86 [2024-11-09 06:23:37,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:37,643 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 311 transitions. [2024-11-09 06:23:37,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-09 06:23:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 311 transitions. [2024-11-09 06:23:37,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:23:37,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:37,645 INFO L215 NwaCegarLoop]: trace histogram [14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:23:37,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 06:23:37,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 06:23:37,846 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:23:37,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:37,846 INFO L85 PathProgramCache]: Analyzing trace with hash -700017636, now seen corresponding path program 2 times [2024-11-09 06:23:37,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:37,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407925177] [2024-11-09 06:23:37,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:37,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:23:37,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275481422] [2024-11-09 06:23:37,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:23:37,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:23:37,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:23:37,875 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:23:37,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 06:23:37,947 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 06:23:37,947 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:23:37,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 06:23:37,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:23:57,480 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 42 proven. 7 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-09 06:23:57,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:24:10,630 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:24:27,375 WARN L286 SmtUtils]: Spent 14.38s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:24:27,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:27,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407925177] [2024-11-09 06:24:27,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:24:27,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275481422] [2024-11-09 06:24:27,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275481422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:24:27,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [993654102] [2024-11-09 06:24:27,378 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 06:24:27,378 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:24:27,379 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:24:27,379 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:24:27,379 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:24:29,527 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 06:24:29,528 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 06:24:29,529 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:24:55,492 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25694#(exists ((|v_ULTIMATE.start_main_~r~0#1_87| Int) (|v_ULTIMATE.start_main_~q~0#1_100| Int) (|v_ULTIMATE.start_main_~B~0#1_57| Int)) (and (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_100| (mod |v_ULTIMATE.start_main_~B~0#1_57| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_87|)) (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~q~0#1_100| 9223372036854775807) (<= (* |v_ULTIMATE.start_main_~q~0#1_100| (mod |v_ULTIMATE.start_main_~B~0#1_57| 4294967296)) 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_100| 9223372036854775808))))' at error location [2024-11-09 06:24:55,492 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:24:55,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:24:55,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-09 06:24:55,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809212516] [2024-11-09 06:24:55,493 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:24:55,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:24:55,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:55,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:24:55,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=2237, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 06:24:55,495 INFO L87 Difference]: Start difference. First operand 244 states and 311 transitions. Second operand has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:24:57,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:25:00,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:25:02,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:25:04,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:04,460 INFO L93 Difference]: Finished difference Result 247 states and 313 transitions. [2024-11-09 06:25:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:25:04,461 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 104 [2024-11-09 06:25:04,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:04,461 INFO L225 Difference]: With dead ends: 247 [2024-11-09 06:25:04,462 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:25:04,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 51.8s TimeCoverageRelationStatistics Valid=393, Invalid=2799, Unknown=0, NotChecked=0, Total=3192 [2024-11-09 06:25:04,464 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 41 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 33 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:04,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 127 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 188 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2024-11-09 06:25:04,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:25:04,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:25:04,465 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) [2024-11-09 06:25:04,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:25:04,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2024-11-09 06:25:04,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:04,466 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:25:04,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 06:25:04,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:25:04,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:25:04,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-09 06:25:04,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-09 06:25:04,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-09 06:25:04,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-09 06:25:04,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-09 06:25:04,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-09 06:25:04,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-09 06:25:04,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-09 06:25:04,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-09 06:25:04,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-09 06:25:04,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-09 06:25:04,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-09 06:25:04,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-09 06:25:04,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-09 06:25:04,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-09 06:25:04,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-09 06:25:04,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-09 06:25:04,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-09 06:25:04,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-09 06:25:04,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-09 06:25:04,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-09 06:25:04,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-09 06:25:04,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-09 06:25:04,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-09 06:25:04,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 06:25:04,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:25:04,679 INFO L407 BasicCegarLoop]: Path program histogram: [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:04,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 06:25:07,105 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:25:07,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:25:07 BoogieIcfgContainer [2024-11-09 06:25:07,143 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:25:07,144 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:25:07,144 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:25:07,144 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:25:07,145 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:18:00" (3/4) ... [2024-11-09 06:25:07,148 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:25:07,152 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 06:25:07,152 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 06:25:07,161 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-09 06:25:07,161 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 06:25:07,161 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 06:25:07,162 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 06:25:07,268 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:25:07,269 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:25:07,269 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:25:07,269 INFO L158 Benchmark]: Toolchain (without parser) took 427902.03ms. Allocated memory was 132.1MB in the beginning and 434.1MB in the end (delta: 302.0MB). Free memory was 101.2MB in the beginning and 206.8MB in the end (delta: -105.6MB). Peak memory consumption was 198.5MB. Max. memory is 16.1GB. [2024-11-09 06:25:07,270 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:25:07,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.36ms. Allocated memory is still 132.1MB. Free memory was 100.7MB in the beginning and 88.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 06:25:07,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.13ms. Allocated memory is still 132.1MB. Free memory was 87.9MB in the beginning and 86.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:25:07,271 INFO L158 Benchmark]: Boogie Preprocessor took 26.19ms. Allocated memory is still 132.1MB. Free memory was 86.2MB in the beginning and 85.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:25:07,271 INFO L158 Benchmark]: RCFGBuilder took 537.97ms. Allocated memory is still 132.1MB. Free memory was 85.0MB in the beginning and 66.1MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 06:25:07,272 INFO L158 Benchmark]: TraceAbstraction took 426841.21ms. Allocated memory was 132.1MB in the beginning and 434.1MB in the end (delta: 302.0MB). Free memory was 65.6MB in the beginning and 212.1MB in the end (delta: -146.5MB). Peak memory consumption was 229.9MB. Max. memory is 16.1GB. [2024-11-09 06:25:07,272 INFO L158 Benchmark]: Witness Printer took 124.83ms. Allocated memory is still 434.1MB. Free memory was 212.1MB in the beginning and 206.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 06:25:07,274 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.36ms. Allocated memory is still 132.1MB. Free memory was 100.7MB in the beginning and 88.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.13ms. Allocated memory is still 132.1MB. Free memory was 87.9MB in the beginning and 86.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.19ms. Allocated memory is still 132.1MB. Free memory was 86.2MB in the beginning and 85.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 537.97ms. Allocated memory is still 132.1MB. Free memory was 85.0MB in the beginning and 66.1MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 426841.21ms. Allocated memory was 132.1MB in the beginning and 434.1MB in the end (delta: 302.0MB). Free memory was 65.6MB in the beginning and 212.1MB in the end (delta: -146.5MB). Peak memory consumption was 229.9MB. Max. memory is 16.1GB. * Witness Printer took 124.83ms. Allocated memory is still 434.1MB. Free memory was 212.1MB in the beginning and 206.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: 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, 72 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 424.3s, OverallIterations: 30, TraceHistogramMax: 14, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 83.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 mSolverCounterUnknown, 3147 SdHoareTripleChecker+Valid, 56.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3052 mSDsluCounter, 5463 SdHoareTripleChecker+Invalid, 55.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3883 mSDsCounter, 537 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9067 IncrementalHoareTripleChecker+Invalid, 9621 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 537 mSolverCounterUnsat, 1580 mSDtfsCounter, 9067 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3222 GetRequests, 2434 SyntacticMatches, 5 SemanticMatches, 783 ConstructedPredicates, 1 IntricatePredicates, 11 DeprecatedPredicates, 13733 ImplicationChecksByTransitivity, 263.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=410occurred in iteration=18, InterpolantAutomatonStates: 274, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 30 MinimizatonAttempts, 838 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 103.2s InterpolantComputationTime, 3113 NumberOfCodeBlocks, 2947 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 2444 ConstructedInterpolants, 20 QuantifiedInterpolants, 18351 SizeOfPredicates, 45 NumberOfNonLiveVariables, 2554 ConjunctsInSsa, 245 ConjunctsInUnsatCore, 40 InterpolantComputations, 14 PerfectInterpolantSequences, 3160/3602 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 24 specifications checked. All of them hold - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((((((((p == 1) && (d <= 4294967295)) && (B <= d)) && (0 <= r)) && (r <= 5)) && (A <= 5)) && (q == 0)) || (((((((p == 1) && (((__int128) d + r) <= 5)) && (B <= d)) && (0 <= r)) && (A <= 5)) && (q == 1)) && (((__int128) r + 1) <= B))) || (((((((2 == p) && (((long long) 2 * B) == d)) && (r <= 5)) && (A <= 5)) && (q == 0)) && (((__int128) r + 1) <= d)) && (((d >= 0) ? (d / 2) : ((d / 2) - 1)) <= r))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((B <= 5) && (p == 1)) && (d == B)) && (A <= 5)) && (q == 0)) && (r == A)) && (((long long) 3 + A) <= ((long long) B * 8))) || (((((((2 == p) && (((long long) 2 * B) == d)) && (A <= 5)) && (q == 0)) && (r == A)) && (((long long) 3 + A) <= ((long long) B * 8))) && (((d >= 0) ? (d / 2) : ((d / 2) - 1)) <= r))) - ProcedureContractResult [Line: 11]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (cond != 0) RESULT: Ultimate proved your program to be correct! [2024-11-09 06:25:07,491 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-09 06:25:07,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4c7d891-f394-43f7-b04b-2dc8e858012b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE