./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/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_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/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_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/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 e51b21c2da790a7136d7ad701fd2bec1367e3ae6dd3a60c613fa7cfa4db22905 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:59:34,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:59:34,183 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:59:34,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:59:34,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:59:34,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:59:34,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:59:34,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:59:34,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:59:34,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:59:34,222 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:59:34,223 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:59:34,223 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:59:34,224 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:59:34,225 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:59:34,225 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:59:34,227 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:59:34,228 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:59:34,231 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:59:34,232 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:59:34,232 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:59:34,233 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:59:34,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:59:34,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:59:34,235 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:59:34,236 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:59:34,237 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:59:34,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:59:34,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:59:34,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:59:34,239 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:59:34,239 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:59:34,240 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:59:34,240 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:59:34,240 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:59:34,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:59:34,241 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:59:34,241 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:59:34,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:59:34,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:59:34,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:59:34,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:59:34,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:59:34,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:59:34,243 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:59:34,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:59:34,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:59:34,244 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:59:34,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:59:34,244 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_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e51b21c2da790a7136d7ad701fd2bec1367e3ae6dd3a60c613fa7cfa4db22905 [2024-11-09 06:59:34,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:59:34,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:59:34,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:59:34,579 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:59:34,580 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:59:34,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound20.c Unable to find full path for "g++" [2024-11-09 06:59:36,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:59:36,873 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:59:36,874 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound20.c [2024-11-09 06:59:36,882 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/data/c70cea5da/3bd719f7dde2423787c0b04aec0cdf9f/FLAG240f8f5bf [2024-11-09 06:59:37,219 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/data/c70cea5da/3bd719f7dde2423787c0b04aec0cdf9f [2024-11-09 06:59:37,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:59:37,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:59:37,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:59:37,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:59:37,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:59:37,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad0e62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37, skipping insertion in model container [2024-11-09 06:59:37,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:59:37,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:59:37,472 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:59:37,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:59:37,517 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:59:37,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37 WrapperNode [2024-11-09 06:59:37,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:59:37,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:59:37,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:59:37,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:59:37,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,565 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 134 [2024-11-09 06:59:37,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:59:37,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:59:37,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:59:37,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:59:37,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,587 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:59:37,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:59:37,594 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:59:37,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:59:37,595 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (1/1) ... [2024-11-09 06:59:37,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:59:37,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:37,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:59:37,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:59:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:59:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:59:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:59:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:59:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:59:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:59:37,718 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:59:37,720 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:59:38,294 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-11-09 06:59:38,294 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:59:38,347 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:59:38,347 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:59:38,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:59:38 BoogieIcfgContainer [2024-11-09 06:59:38,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:59:38,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:59:38,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:59:38,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:59:38,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:59:37" (1/3) ... [2024-11-09 06:59:38,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766fe14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:59:38, skipping insertion in model container [2024-11-09 06:59:38,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:59:37" (2/3) ... [2024-11-09 06:59:38,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@766fe14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:59:38, skipping insertion in model container [2024-11-09 06:59:38,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:59:38" (3/3) ... [2024-11-09 06:59:38,358 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_unwindbound20.c [2024-11-09 06:59:38,376 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:59:38,377 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2024-11-09 06:59:38,443 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:59:38,450 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;@d984e9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:59:38,450 INFO L334 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2024-11-09 06:59:38,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 92 states have (on average 1.9673913043478262) internal successors, (181), 178 states have internal predecessors, (181), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:59:38,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 06:59:38,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:38,464 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 06:59:38,464 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:38,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:38,469 INFO L85 PathProgramCache]: Analyzing trace with hash 258571, now seen corresponding path program 1 times [2024-11-09 06:59:38,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:38,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519604422] [2024-11-09 06:59:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:38,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:38,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:38,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:38,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519604422] [2024-11-09 06:59:38,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519604422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:38,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:38,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:38,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121122388] [2024-11-09 06:59:38,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:38,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:59:38,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:38,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:59:38,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:59:38,668 INFO L87 Difference]: Start difference. First operand has 183 states, 92 states have (on average 1.9673913043478262) internal successors, (181), 178 states have internal predecessors, (181), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 06:59:38,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:38,707 INFO L93 Difference]: Finished difference Result 259 states and 269 transitions. [2024-11-09 06:59:38,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:59:38,710 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 06:59:38,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:38,719 INFO L225 Difference]: With dead ends: 259 [2024-11-09 06:59:38,719 INFO L226 Difference]: Without dead ends: 167 [2024-11-09 06:59:38,722 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 06:59:38,726 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:38,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:59:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-09 06:59:38,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-09 06:59:38,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 91 states have (on average 1.8131868131868132) internal successors, (165), 163 states have internal predecessors, (165), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:59:38,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 169 transitions. [2024-11-09 06:59:38,799 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 169 transitions. Word has length 3 [2024-11-09 06:59:38,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:38,799 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 169 transitions. [2024-11-09 06:59:38,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 06:59:38,800 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 169 transitions. [2024-11-09 06:59:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 06:59:38,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:38,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 06:59:38,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:59:38,820 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:38,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:38,821 INFO L85 PathProgramCache]: Analyzing trace with hash 255082, now seen corresponding path program 1 times [2024-11-09 06:59:38,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:38,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044247281] [2024-11-09 06:59:38,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:38,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:38,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:38,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:38,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044247281] [2024-11-09 06:59:38,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044247281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:38,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:38,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:38,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375362255] [2024-11-09 06:59:38,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:38,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:59:38,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:38,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:59:38,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:38,954 INFO L87 Difference]: Start difference. First operand 167 states and 169 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 06:59:39,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:39,020 INFO L93 Difference]: Finished difference Result 167 states and 169 transitions. [2024-11-09 06:59:39,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:59:39,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 06:59:39,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:39,023 INFO L225 Difference]: With dead ends: 167 [2024-11-09 06:59:39,023 INFO L226 Difference]: Without dead ends: 166 [2024-11-09 06:59:39,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 06:59:39,026 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 168 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:39,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 320 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:59:39,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-09 06:59:39,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-09 06:59:39,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 91 states have (on average 1.8021978021978022) internal successors, (164), 162 states have internal predecessors, (164), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:59:39,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 168 transitions. [2024-11-09 06:59:39,042 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 168 transitions. Word has length 3 [2024-11-09 06:59:39,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:39,043 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 168 transitions. [2024-11-09 06:59:39,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 06:59:39,043 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 168 transitions. [2024-11-09 06:59:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 06:59:39,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:39,044 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 06:59:39,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:59:39,045 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:39,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:39,046 INFO L85 PathProgramCache]: Analyzing trace with hash 7907589, now seen corresponding path program 1 times [2024-11-09 06:59:39,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:39,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079236630] [2024-11-09 06:59:39,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:39,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:39,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:39,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:39,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079236630] [2024-11-09 06:59:39,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079236630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:39,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:39,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:39,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207939945] [2024-11-09 06:59:39,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:39,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:59:39,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:39,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:59:39,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:39,113 INFO L87 Difference]: Start difference. First operand 166 states and 168 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:59:39,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:39,176 INFO L93 Difference]: Finished difference Result 244 states and 246 transitions. [2024-11-09 06:59:39,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:59:39,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 06:59:39,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:39,178 INFO L225 Difference]: With dead ends: 244 [2024-11-09 06:59:39,178 INFO L226 Difference]: Without dead ends: 170 [2024-11-09 06:59:39,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 06:59:39,181 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 3 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:39,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 485 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:59:39,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-09 06:59:39,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2024-11-09 06:59:39,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 95 states have (on average 1.768421052631579) internal successors, (168), 166 states have internal predecessors, (168), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:59:39,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 172 transitions. [2024-11-09 06:59:39,196 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 172 transitions. Word has length 4 [2024-11-09 06:59:39,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:39,197 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 172 transitions. [2024-11-09 06:59:39,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:59:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 172 transitions. [2024-11-09 06:59:39,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 06:59:39,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:39,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 06:59:39,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:59:39,199 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:39,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:39,200 INFO L85 PathProgramCache]: Analyzing trace with hash -990739897, now seen corresponding path program 1 times [2024-11-09 06:59:39,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:39,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991165310] [2024-11-09 06:59:39,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:39,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:39,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:39,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:39,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991165310] [2024-11-09 06:59:39,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991165310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:39,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:39,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:59:39,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226264452] [2024-11-09 06:59:39,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:39,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:39,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:39,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:39,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:39,253 INFO L87 Difference]: Start difference. First operand 170 states and 172 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:59:39,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:39,746 INFO L93 Difference]: Finished difference Result 306 states and 318 transitions. [2024-11-09 06:59:39,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:39,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 06:59:39,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:39,749 INFO L225 Difference]: With dead ends: 306 [2024-11-09 06:59:39,753 INFO L226 Difference]: Without dead ends: 250 [2024-11-09 06:59:39,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 06:59:39,756 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 82 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:39,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 113 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:59:39,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-09 06:59:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 244. [2024-11-09 06:59:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 168 states have (on average 1.5178571428571428) internal successors, (255), 239 states have internal predecessors, (255), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:59:39,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 261 transitions. [2024-11-09 06:59:39,792 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 261 transitions. Word has length 6 [2024-11-09 06:59:39,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:39,792 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 261 transitions. [2024-11-09 06:59:39,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:59:39,793 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 261 transitions. [2024-11-09 06:59:39,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 06:59:39,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:39,794 INFO L215 NwaCegarLoop]: trace histogram [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 06:59:39,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:59:39,797 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:39,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:39,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1625545699, now seen corresponding path program 1 times [2024-11-09 06:59:39,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:39,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848680742] [2024-11-09 06:59:39,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:39,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:39,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:39,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848680742] [2024-11-09 06:59:39,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848680742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:39,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:39,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:59:39,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097248782] [2024-11-09 06:59:39,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:39,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:39,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:39,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:39,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:39,968 INFO L87 Difference]: Start difference. First operand 244 states and 261 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 06:59:40,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:40,076 INFO L93 Difference]: Finished difference Result 263 states and 275 transitions. [2024-11-09 06:59:40,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:40,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-09 06:59:40,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:40,078 INFO L225 Difference]: With dead ends: 263 [2024-11-09 06:59:40,078 INFO L226 Difference]: Without dead ends: 258 [2024-11-09 06:59:40,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 06:59:40,080 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 58 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:40,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 282 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:59:40,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-09 06:59:40,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 251. [2024-11-09 06:59:40,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 175 states have (on average 1.497142857142857) internal successors, (262), 246 states have internal predecessors, (262), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:59:40,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 268 transitions. [2024-11-09 06:59:40,095 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 268 transitions. Word has length 34 [2024-11-09 06:59:40,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:40,096 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 268 transitions. [2024-11-09 06:59:40,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 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 06:59:40,096 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 268 transitions. [2024-11-09 06:59:40,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 06:59:40,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:40,098 INFO L215 NwaCegarLoop]: trace histogram [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 06:59:40,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:59:40,098 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:40,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:40,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1218675419, now seen corresponding path program 1 times [2024-11-09 06:59:40,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:40,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896112872] [2024-11-09 06:59:40,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:40,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:40,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:40,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896112872] [2024-11-09 06:59:40,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896112872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:40,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:40,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:40,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530356189] [2024-11-09 06:59:40,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:40,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:59:40,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:40,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:59:40,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:40,262 INFO L87 Difference]: Start difference. First operand 251 states and 268 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 06:59:40,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:40,509 INFO L93 Difference]: Finished difference Result 262 states and 270 transitions. [2024-11-09 06:59:40,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:59:40,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-09 06:59:40,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:40,511 INFO L225 Difference]: With dead ends: 262 [2024-11-09 06:59:40,512 INFO L226 Difference]: Without dead ends: 257 [2024-11-09 06:59:40,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:40,514 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 136 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:40,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 219 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:59:40,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-09 06:59:40,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 251. [2024-11-09 06:59:40,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 175 states have (on average 1.4685714285714286) internal successors, (257), 246 states have internal predecessors, (257), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:59:40,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 263 transitions. [2024-11-09 06:59:40,540 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 263 transitions. Word has length 36 [2024-11-09 06:59:40,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:40,540 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 263 transitions. [2024-11-09 06:59:40,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 06:59:40,541 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 263 transitions. [2024-11-09 06:59:40,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 06:59:40,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:40,541 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:40,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:59:40,542 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:40,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:40,547 INFO L85 PathProgramCache]: Analyzing trace with hash 875767791, now seen corresponding path program 1 times [2024-11-09 06:59:40,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:40,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325167950] [2024-11-09 06:59:40,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:40,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:40,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:40,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325167950] [2024-11-09 06:59:40,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325167950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:40,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:40,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:40,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4224421] [2024-11-09 06:59:40,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:40,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:59:40,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:40,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:59:40,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:40,704 INFO L87 Difference]: Start difference. First operand 251 states and 263 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:59:43,254 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 06:59:43,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:43,295 INFO L93 Difference]: Finished difference Result 261 states and 265 transitions. [2024-11-09 06:59:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:59:43,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-09 06:59:43,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:43,297 INFO L225 Difference]: With dead ends: 261 [2024-11-09 06:59:43,297 INFO L226 Difference]: Without dead ends: 223 [2024-11-09 06:59:43,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:43,299 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 85 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:43,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 248 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 06:59:43,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-09 06:59:43,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 217. [2024-11-09 06:59:43,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 141 states have (on average 1.553191489361702) internal successors, (219), 212 states have internal predecessors, (219), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:59:43,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 225 transitions. [2024-11-09 06:59:43,310 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 225 transitions. Word has length 37 [2024-11-09 06:59:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:43,310 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 225 transitions. [2024-11-09 06:59:43,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:59:43,311 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 225 transitions. [2024-11-09 06:59:43,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 06:59:43,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:43,312 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:43,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:59:43,313 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:43,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:43,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1031677955, now seen corresponding path program 1 times [2024-11-09 06:59:43,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:43,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665799357] [2024-11-09 06:59:43,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:43,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:43,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:43,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665799357] [2024-11-09 06:59:43,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665799357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:43,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:43,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:43,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898113563] [2024-11-09 06:59:43,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:43,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:43,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:43,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:43,402 INFO L87 Difference]: Start difference. First operand 217 states and 225 transitions. Second operand has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:43,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:43,427 INFO L93 Difference]: Finished difference Result 219 states and 225 transitions. [2024-11-09 06:59:43,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:43,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2024-11-09 06:59:43,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:43,429 INFO L225 Difference]: With dead ends: 219 [2024-11-09 06:59:43,429 INFO L226 Difference]: Without dead ends: 217 [2024-11-09 06:59:43,430 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 06:59:43,431 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:43,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 323 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:59:43,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-09 06:59:43,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2024-11-09 06:59:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 212 states have internal predecessors, (217), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 06:59:43,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 223 transitions. [2024-11-09 06:59:43,441 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 223 transitions. Word has length 44 [2024-11-09 06:59:43,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:43,443 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 223 transitions. [2024-11-09 06:59:43,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:43,443 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 223 transitions. [2024-11-09 06:59:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 06:59:43,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:43,445 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:43,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:59:43,445 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:43,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:43,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1059886761, now seen corresponding path program 1 times [2024-11-09 06:59:43,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:43,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845305288] [2024-11-09 06:59:43,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:43,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:59:43,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [897784937] [2024-11-09 06:59:43,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:43,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:43,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:43,470 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:43,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:59:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:43,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:59:43,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:43,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:43,721 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:59:43,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:43,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845305288] [2024-11-09 06:59:43,723 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:59:43,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897784937] [2024-11-09 06:59:43,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897784937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:43,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:43,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:59:43,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216066497] [2024-11-09 06:59:43,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:43,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:59:43,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:43,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:59:43,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:43,730 INFO L87 Difference]: Start difference. First operand 217 states and 223 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:44,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:44,309 INFO L93 Difference]: Finished difference Result 360 states and 377 transitions. [2024-11-09 06:59:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:59:44,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2024-11-09 06:59:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:44,311 INFO L225 Difference]: With dead ends: 360 [2024-11-09 06:59:44,311 INFO L226 Difference]: Without dead ends: 306 [2024-11-09 06:59:44,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:44,314 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 95 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:44,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 136 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:59:44,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-09 06:59:44,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 299. [2024-11-09 06:59:44,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 221 states have (on average 1.416289592760181) internal successors, (313), 292 states have internal predecessors, (313), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:59:44,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 323 transitions. [2024-11-09 06:59:44,332 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 323 transitions. Word has length 49 [2024-11-09 06:59:44,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:44,333 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 323 transitions. [2024-11-09 06:59:44,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:44,333 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 323 transitions. [2024-11-09 06:59:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 06:59:44,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:44,335 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:44,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:44,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:44,536 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:44,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:44,537 INFO L85 PathProgramCache]: Analyzing trace with hash -136552337, now seen corresponding path program 1 times [2024-11-09 06:59:44,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:44,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129789023] [2024-11-09 06:59:44,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:44,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:44,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:44,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:44,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129789023] [2024-11-09 06:59:44,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129789023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:44,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:44,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:59:44,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191072312] [2024-11-09 06:59:44,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:44,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:59:44,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:44,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:59:44,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:44,633 INFO L87 Difference]: Start difference. First operand 299 states and 323 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:46,961 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 06:59:46,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:46,970 INFO L93 Difference]: Finished difference Result 300 states and 323 transitions. [2024-11-09 06:59:46,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:59:46,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2024-11-09 06:59:46,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:46,972 INFO L225 Difference]: With dead ends: 300 [2024-11-09 06:59:46,972 INFO L226 Difference]: Without dead ends: 299 [2024-11-09 06:59:46,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:59:46,973 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 42 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:46,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 282 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 219 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 06:59:46,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-09 06:59:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-11-09 06:59:46,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 221 states have (on average 1.411764705882353) internal successors, (312), 292 states have internal predecessors, (312), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:59:46,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 322 transitions. [2024-11-09 06:59:46,984 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 322 transitions. Word has length 55 [2024-11-09 06:59:46,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:46,985 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 322 transitions. [2024-11-09 06:59:46,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:46,985 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 322 transitions. [2024-11-09 06:59:46,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 06:59:46,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:46,986 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:59:46,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:59:46,986 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:46,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:46,987 INFO L85 PathProgramCache]: Analyzing trace with hash -696599490, now seen corresponding path program 1 times [2024-11-09 06:59:46,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:46,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426975760] [2024-11-09 06:59:46,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:46,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:47,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:47,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:47,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426975760] [2024-11-09 06:59:47,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426975760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:47,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349678001] [2024-11-09 06:59:47,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:47,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:47,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:47,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:47,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:59:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:47,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:59:47,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:47,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:47,306 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:59:47,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349678001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:47,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:59:47,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-09 06:59:47,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234407130] [2024-11-09 06:59:47,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:47,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:59:47,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:59:47,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:59:47,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:59:47,309 INFO L87 Difference]: Start difference. First operand 299 states and 322 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:47,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:47,433 INFO L93 Difference]: Finished difference Result 409 states and 439 transitions. [2024-11-09 06:59:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:59:47,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2024-11-09 06:59:47,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:47,436 INFO L225 Difference]: With dead ends: 409 [2024-11-09 06:59:47,436 INFO L226 Difference]: Without dead ends: 408 [2024-11-09 06:59:47,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:59:47,437 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 115 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:47,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 760 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:59:47,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-09 06:59:47,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 370. [2024-11-09 06:59:47,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 290 states have (on average 1.4275862068965517) internal successors, (414), 362 states have internal predecessors, (414), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 06:59:47,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 428 transitions. [2024-11-09 06:59:47,450 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 428 transitions. Word has length 58 [2024-11-09 06:59:47,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:47,450 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 428 transitions. [2024-11-09 06:59:47,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:47,451 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 428 transitions. [2024-11-09 06:59:47,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 06:59:47,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:47,452 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:47,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:59:47,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 06:59:47,653 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 06:59:47,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:47,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2083516989, now seen corresponding path program 1 times [2024-11-09 06:59:47,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:59:47,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199536015] [2024-11-09 06:59:47,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:47,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:59:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:47,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:59:47,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199536015] [2024-11-09 06:59:47,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199536015] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:47,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389765739] [2024-11-09 06:59:47,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:47,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:47,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:47,795 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:47,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:59:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:47,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:59:47,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:47,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:47,972 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:48,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389765739] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:48,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1983780231] [2024-11-09 06:59:48,144 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2024-11-09 06:59:48,144 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:59:48,148 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:59:48,154 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:59:48,154 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:59:54,630 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 06:59:54,661 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:00:17,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1983780231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:17,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:00:17,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [6, 5, 6] total 31 [2024-11-09 07:00:17,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530169878] [2024-11-09 07:00:17,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:17,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 07:00:17,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:00:17,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 07:00:17,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=800, Unknown=1, NotChecked=0, Total=930 [2024-11-09 07:00:17,335 INFO L87 Difference]: Start difference. First operand 370 states and 428 transitions. Second operand has 23 states, 21 states have (on average 3.9523809523809526) internal successors, (83), 20 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:00:24,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:00:26,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:26,056 INFO L93 Difference]: Finished difference Result 397 states and 438 transitions. [2024-11-09 07:00:26,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 07:00:26,057 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.9523809523809526) internal successors, (83), 20 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2024-11-09 07:00:26,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:26,058 INFO L225 Difference]: With dead ends: 397 [2024-11-09 07:00:26,058 INFO L226 Difference]: Without dead ends: 258 [2024-11-09 07:00:26,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 188 SyntacticMatches, 51 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=274, Invalid=1531, Unknown=1, NotChecked=0, Total=1806 [2024-11-09 07:00:26,060 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 322 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 102 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:26,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 13 Invalid, 1922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1819 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2024-11-09 07:00:26,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-09 07:00:26,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 245. [2024-11-09 07:00:26,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 218 states have (on average 1.1055045871559632) internal successors, (241), 238 states have internal predecessors, (241), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:00:26,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 249 transitions. [2024-11-09 07:00:26,073 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 249 transitions. Word has length 88 [2024-11-09 07:00:26,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:26,073 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 249 transitions. [2024-11-09 07:00:26,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.9523809523809526) internal successors, (83), 20 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:00:26,074 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 249 transitions. [2024-11-09 07:00:26,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 07:00:26,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:26,079 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 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] [2024-11-09 07:00:26,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 07:00:26,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 07:00:26,281 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:00:26,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:26,282 INFO L85 PathProgramCache]: Analyzing trace with hash -2047502459, now seen corresponding path program 1 times [2024-11-09 07:00:26,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:00:26,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840443200] [2024-11-09 07:00:26,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:26,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:26,516 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:00:26,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:00:26,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840443200] [2024-11-09 07:00:26,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840443200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:00:26,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791401629] [2024-11-09 07:00:26,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:26,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:00:26,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:00:26,519 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:00:26,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:00:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:26,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:00:26,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:00:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:26,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:00:26,984 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:00:26,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791401629] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:00:26,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [993966574] [2024-11-09 07:00:26,987 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-09 07:00:26,988 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:00:26,988 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:00:26,988 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:00:26,988 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:00:29,927 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 07:00:29,953 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:00:46,888 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8427#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= 21 ~counter~0) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_192| Int)) (and (= (+ (* 15 (* |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192|)) (* 6 (* |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192|)) (* (* |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192|) 10)) (+ |v_ULTIMATE.start_main_~y~0#1_192| (* 30 |ULTIMATE.start_main_~x~0#1|))) (<= |ULTIMATE.start_main_~x~0#1| (+ (* |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192|) 307445734561825860)) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192| |v_ULTIMATE.start_main_~y~0#1_192|)))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 07:00:46,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:00:46,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:00:46,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2024-11-09 07:00:46,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243612198] [2024-11-09 07:00:46,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:00:46,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 07:00:46,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:00:46,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 07:00:46,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=986, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 07:00:46,892 INFO L87 Difference]: Start difference. First operand 245 states and 249 transitions. Second operand has 14 states, 14 states have (on average 16.214285714285715) internal successors, (227), 14 states have internal predecessors, (227), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-09 07:00:47,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:47,276 INFO L93 Difference]: Finished difference Result 637 states and 641 transitions. [2024-11-09 07:00:47,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 07:00:47,277 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.214285714285715) internal successors, (227), 14 states have internal predecessors, (227), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 123 [2024-11-09 07:00:47,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:47,279 INFO L225 Difference]: With dead ends: 637 [2024-11-09 07:00:47,280 INFO L226 Difference]: Without dead ends: 626 [2024-11-09 07:00:47,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 269 SyntacticMatches, 74 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2533 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=290, Invalid=1690, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 07:00:47,282 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 344 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:47,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1065 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:00:47,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-09 07:00:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 427. [2024-11-09 07:00:47,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 392 states have (on average 1.0739795918367347) internal successors, (421), 412 states have internal predecessors, (421), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:00:47,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 435 transitions. [2024-11-09 07:00:47,312 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 435 transitions. Word has length 123 [2024-11-09 07:00:47,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:47,313 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 435 transitions. [2024-11-09 07:00:47,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.214285714285715) internal successors, (227), 14 states have internal predecessors, (227), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-09 07:00:47,315 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 435 transitions. [2024-11-09 07:00:47,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 07:00:47,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:47,316 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-11-09 07:00:47,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 07:00:47,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 07:00:47,517 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:00:47,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:47,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1124158951, now seen corresponding path program 1 times [2024-11-09 07:00:47,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:00:47,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726188295] [2024-11-09 07:00:47,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:47,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:00:47,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795193835] [2024-11-09 07:00:47,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:47,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:00:47,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:00:47,560 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:00:47,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:00:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:47,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:00:47,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:00:47,827 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:00:47,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:00:47,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:00:47,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726188295] [2024-11-09 07:00:47,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:00:47,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795193835] [2024-11-09 07:00:47,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795193835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:00:47,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [962084559] [2024-11-09 07:00:47,985 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 07:00:47,986 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:00:47,986 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:00:47,986 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:00:47,986 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:00:50,419 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 07:00:50,435 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:01:02,261 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10058#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_200| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200|) 1537228672809129301) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200| |v_ULTIMATE.start_main_~y~0#1_200|)))) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 07:01:02,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:01:02,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:01:02,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-09 07:01:02,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296493690] [2024-11-09 07:01:02,262 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:01:02,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:01:02,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:02,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:01:02,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2024-11-09 07:01:02,263 INFO L87 Difference]: Start difference. First operand 427 states and 435 transitions. Second operand has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:02,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:02,704 INFO L93 Difference]: Finished difference Result 483 states and 509 transitions. [2024-11-09 07:01:02,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:01:02,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 123 [2024-11-09 07:01:02,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:02,708 INFO L225 Difference]: With dead ends: 483 [2024-11-09 07:01:02,708 INFO L226 Difference]: Without dead ends: 477 [2024-11-09 07:01:02,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 179 SyntacticMatches, 70 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1379 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2024-11-09 07:01:02,709 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 143 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:02,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 72 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:01:02,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-09 07:01:02,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 454. [2024-11-09 07:01:02,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 419 states have (on average 1.0835322195704058) internal successors, (454), 439 states have internal predecessors, (454), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:01:02,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 468 transitions. [2024-11-09 07:01:02,735 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 468 transitions. Word has length 123 [2024-11-09 07:01:02,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:02,736 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 468 transitions. [2024-11-09 07:01:02,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:02,736 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 468 transitions. [2024-11-09 07:01:02,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 07:01:02,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:02,738 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:02,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 07:01:02,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 07:01:02,939 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:01:02,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:02,940 INFO L85 PathProgramCache]: Analyzing trace with hash -2112854417, now seen corresponding path program 1 times [2024-11-09 07:01:02,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:02,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821753395] [2024-11-09 07:01:02,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:02,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-09 07:01:03,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:03,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821753395] [2024-11-09 07:01:03,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821753395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:03,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:03,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:03,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123561128] [2024-11-09 07:01:03,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:03,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:03,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:03,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:03,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:03,058 INFO L87 Difference]: Start difference. First operand 454 states and 468 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:03,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:03,117 INFO L93 Difference]: Finished difference Result 454 states and 468 transitions. [2024-11-09 07:01:03,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:03,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 126 [2024-11-09 07:01:03,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:03,120 INFO L225 Difference]: With dead ends: 454 [2024-11-09 07:01:03,120 INFO L226 Difference]: Without dead ends: 453 [2024-11-09 07:01:03,121 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 07:01:03,121 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 67 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:03,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 95 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:01:03,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-09 07:01:03,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2024-11-09 07:01:03,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 419 states have (on average 1.081145584725537) internal successors, (453), 438 states have internal predecessors, (453), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:01:03,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 467 transitions. [2024-11-09 07:01:03,146 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 467 transitions. Word has length 126 [2024-11-09 07:01:03,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:03,147 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 467 transitions. [2024-11-09 07:01:03,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:03,147 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 467 transitions. [2024-11-09 07:01:03,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 07:01:03,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:03,148 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:03,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 07:01:03,149 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:01:03,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:03,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1073977274, now seen corresponding path program 1 times [2024-11-09 07:01:03,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:03,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009987038] [2024-11-09 07:01:03,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:03,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:03,246 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 07:01:03,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:03,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009987038] [2024-11-09 07:01:03,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009987038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:03,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:03,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:03,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013155494] [2024-11-09 07:01:03,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:03,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:03,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:03,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:03,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:03,252 INFO L87 Difference]: Start difference. First operand 453 states and 467 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:03,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:03,306 INFO L93 Difference]: Finished difference Result 454 states and 467 transitions. [2024-11-09 07:01:03,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:03,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 127 [2024-11-09 07:01:03,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:03,308 INFO L225 Difference]: With dead ends: 454 [2024-11-09 07:01:03,309 INFO L226 Difference]: Without dead ends: 453 [2024-11-09 07:01:03,309 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 07:01:03,310 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 65 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:03,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 139 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:01:03,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-09 07:01:03,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 452. [2024-11-09 07:01:03,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 419 states have (on average 1.0787589498806682) internal successors, (452), 437 states have internal predecessors, (452), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:01:03,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 466 transitions. [2024-11-09 07:01:03,332 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 466 transitions. Word has length 127 [2024-11-09 07:01:03,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:03,332 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 466 transitions. [2024-11-09 07:01:03,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:03,333 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 466 transitions. [2024-11-09 07:01:03,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-09 07:01:03,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:03,334 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:03,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 07:01:03,335 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:01:03,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:03,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1066443089, now seen corresponding path program 1 times [2024-11-09 07:01:03,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:03,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331529145] [2024-11-09 07:01:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:03,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:03,431 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-09 07:01:03,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:03,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331529145] [2024-11-09 07:01:03,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331529145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:03,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:03,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:03,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891436167] [2024-11-09 07:01:03,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:03,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:03,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:03,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:03,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:03,434 INFO L87 Difference]: Start difference. First operand 452 states and 466 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:04,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:04,348 INFO L93 Difference]: Finished difference Result 452 states and 466 transitions. [2024-11-09 07:01:04,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:04,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 128 [2024-11-09 07:01:04,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:04,351 INFO L225 Difference]: With dead ends: 452 [2024-11-09 07:01:04,351 INFO L226 Difference]: Without dead ends: 451 [2024-11-09 07:01:04,351 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 07:01:04,352 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 50 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:04,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 21 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 07:01:04,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-09 07:01:04,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 451. [2024-11-09 07:01:04,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 419 states have (on average 1.0763723150357996) internal successors, (451), 436 states have internal predecessors, (451), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:01:04,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 465 transitions. [2024-11-09 07:01:04,377 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 465 transitions. Word has length 128 [2024-11-09 07:01:04,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:04,377 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 465 transitions. [2024-11-09 07:01:04,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:04,378 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 465 transitions. [2024-11-09 07:01:04,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:01:04,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:04,379 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:04,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 07:01:04,380 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:01:04,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:04,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1300002392, now seen corresponding path program 1 times [2024-11-09 07:01:04,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:04,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169007440] [2024-11-09 07:01:04,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:04,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:04,466 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 07:01:04,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:04,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169007440] [2024-11-09 07:01:04,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169007440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:04,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:04,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:04,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368645194] [2024-11-09 07:01:04,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:04,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:04,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:04,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:04,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:04,469 INFO L87 Difference]: Start difference. First operand 451 states and 465 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:05,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:05,000 INFO L93 Difference]: Finished difference Result 451 states and 465 transitions. [2024-11-09 07:01:05,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:05,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 129 [2024-11-09 07:01:05,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:05,002 INFO L225 Difference]: With dead ends: 451 [2024-11-09 07:01:05,003 INFO L226 Difference]: Without dead ends: 450 [2024-11-09 07:01:05,003 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 07:01:05,004 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 43 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:05,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 29 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:01:05,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-09 07:01:05,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2024-11-09 07:01:05,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 419 states have (on average 1.0739856801909309) internal successors, (450), 435 states have internal predecessors, (450), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:01:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 464 transitions. [2024-11-09 07:01:05,028 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 464 transitions. Word has length 129 [2024-11-09 07:01:05,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:05,029 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 464 transitions. [2024-11-09 07:01:05,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:05,029 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 464 transitions. [2024-11-09 07:01:05,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 07:01:05,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:05,031 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:05,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 07:01:05,031 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:01:05,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:05,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1645368269, now seen corresponding path program 1 times [2024-11-09 07:01:05,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:05,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232436734] [2024-11-09 07:01:05,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:05,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 07:01:05,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:05,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232436734] [2024-11-09 07:01:05,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232436734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:05,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:05,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:05,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39781462] [2024-11-09 07:01:05,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:05,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:05,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:05,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:05,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:05,118 INFO L87 Difference]: Start difference. First operand 450 states and 464 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:07,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:01:07,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:07,706 INFO L93 Difference]: Finished difference Result 450 states and 464 transitions. [2024-11-09 07:01:07,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:07,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 130 [2024-11-09 07:01:07,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:07,709 INFO L225 Difference]: With dead ends: 450 [2024-11-09 07:01:07,709 INFO L226 Difference]: Without dead ends: 449 [2024-11-09 07:01:07,709 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 07:01:07,710 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 50 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:07,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 21 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 07:01:07,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-09 07:01:07,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2024-11-09 07:01:07,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 419 states have (on average 1.071599045346062) internal successors, (449), 434 states have internal predecessors, (449), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:01:07,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 463 transitions. [2024-11-09 07:01:07,734 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 463 transitions. Word has length 130 [2024-11-09 07:01:07,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:07,735 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 463 transitions. [2024-11-09 07:01:07,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:07,735 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 463 transitions. [2024-11-09 07:01:07,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-09 07:01:07,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:07,737 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:07,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 07:01:07,737 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:01:07,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:07,737 INFO L85 PathProgramCache]: Analyzing trace with hash 533191434, now seen corresponding path program 1 times [2024-11-09 07:01:07,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:07,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440831596] [2024-11-09 07:01:07,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:07,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:07,817 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 07:01:07,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:07,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440831596] [2024-11-09 07:01:07,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440831596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:07,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:07,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:07,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386101953] [2024-11-09 07:01:07,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:07,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:07,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:07,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:07,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:07,819 INFO L87 Difference]: Start difference. First operand 449 states and 463 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:08,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:08,715 INFO L93 Difference]: Finished difference Result 449 states and 463 transitions. [2024-11-09 07:01:08,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:08,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 131 [2024-11-09 07:01:08,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:08,717 INFO L225 Difference]: With dead ends: 449 [2024-11-09 07:01:08,718 INFO L226 Difference]: Without dead ends: 448 [2024-11-09 07:01:08,718 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 07:01:08,718 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 43 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:08,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 29 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 07:01:08,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-09 07:01:08,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2024-11-09 07:01:08,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 419 states have (on average 1.0692124105011933) internal successors, (448), 433 states have internal predecessors, (448), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:01:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 462 transitions. [2024-11-09 07:01:08,745 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 462 transitions. Word has length 131 [2024-11-09 07:01:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:08,746 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 462 transitions. [2024-11-09 07:01:08,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:08,746 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 462 transitions. [2024-11-09 07:01:08,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 07:01:08,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:08,748 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:08,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 07:01:08,748 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:01:08,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:08,749 INFO L85 PathProgramCache]: Analyzing trace with hash -211493414, now seen corresponding path program 1 times [2024-11-09 07:01:08,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:08,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458148435] [2024-11-09 07:01:08,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:08,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:01:08,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030463285] [2024-11-09 07:01:08,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:08,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:01:08,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:01:08,789 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:01:08,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:01:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:08,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:01:08,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:01:09,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:01:09,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:09,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458148435] [2024-11-09 07:01:09,914 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:01:09,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030463285] [2024-11-09 07:01:09,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030463285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:01:09,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1333056338] [2024-11-09 07:01:09,916 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2024-11-09 07:01:09,917 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:01:09,917 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:01:09,917 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:01:09,917 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:01:12,455 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 121 for LOIs [2024-11-09 07:01:12,503 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:01:21,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1333056338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:21,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:01:21,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [5] total 24 [2024-11-09 07:01:21,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104943159] [2024-11-09 07:01:21,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:21,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 07:01:21,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 07:01:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=646, Unknown=0, NotChecked=0, Total=812 [2024-11-09 07:01:21,574 INFO L87 Difference]: Start difference. First operand 448 states and 462 transitions. Second operand has 21 states, 19 states have (on average 4.684210526315789) internal successors, (89), 18 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:24,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:01:28,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:28,012 INFO L93 Difference]: Finished difference Result 449 states and 462 transitions. [2024-11-09 07:01:28,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 07:01:28,013 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 4.684210526315789) internal successors, (89), 18 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 135 [2024-11-09 07:01:28,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:28,014 INFO L225 Difference]: With dead ends: 449 [2024-11-09 07:01:28,014 INFO L226 Difference]: Without dead ends: 341 [2024-11-09 07:01:28,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 276 SyntacticMatches, 60 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1712 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=429, Invalid=1377, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 07:01:28,016 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 322 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:28,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 3 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1250 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-09 07:01:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-09 07:01:28,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-09 07:01:28,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 327 states have (on average 1.0122324159021407) internal successors, (331), 328 states have internal predecessors, (331), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:01:28,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 343 transitions. [2024-11-09 07:01:28,044 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 343 transitions. Word has length 135 [2024-11-09 07:01:28,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:28,044 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 343 transitions. [2024-11-09 07:01:28,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 4.684210526315789) internal successors, (89), 18 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:01:28,045 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 343 transitions. [2024-11-09 07:01:28,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-09 07:01:28,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:28,047 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-11-09 07:01:28,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 07:01:28,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-09 07:01:28,248 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:01:28,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:28,248 INFO L85 PathProgramCache]: Analyzing trace with hash -270166386, now seen corresponding path program 2 times [2024-11-09 07:01:28,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:01:28,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011636760] [2024-11-09 07:01:28,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:28,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:01:28,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1801257049] [2024-11-09 07:01:28,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:01:28,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:01:28,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:01:28,314 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:01:28,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 07:01:28,462 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 07:01:28,463 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:01:28,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:01:28,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:01:28,701 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:01:28,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:01:28,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011636760] [2024-11-09 07:01:28,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:01:28,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801257049] [2024-11-09 07:01:28,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801257049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:01:28,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [478379555] [2024-11-09 07:01:28,830 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 07:01:28,830 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:01:28,831 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:01:28,831 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:01:28,831 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:01:30,913 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 07:01:30,928 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:01:59,940 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19043#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_216| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216|) 1537228672809129301) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216| |v_ULTIMATE.start_main_~y~0#1_216|)))) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 07:01:59,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:01:59,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:01:59,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 07:01:59,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620908901] [2024-11-09 07:01:59,941 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:01:59,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:01:59,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:01:59,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:01:59,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=626, Unknown=1, NotChecked=0, Total=756 [2024-11-09 07:01:59,943 INFO L87 Difference]: Start difference. First operand 341 states and 343 transitions. Second operand has 6 states, 5 states have (on average 33.8) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:02:00,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:00,186 INFO L93 Difference]: Finished difference Result 342 states and 343 transitions. [2024-11-09 07:02:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:02:00,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.8) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 177 [2024-11-09 07:02:00,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:00,189 INFO L225 Difference]: With dead ends: 342 [2024-11-09 07:02:00,189 INFO L226 Difference]: Without dead ends: 341 [2024-11-09 07:02:00,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 256 SyntacticMatches, 99 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2173 ImplicationChecksByTransitivity, 29.0s TimeCoverageRelationStatistics Valid=129, Invalid=626, Unknown=1, NotChecked=0, Total=756 [2024-11-09 07:02:00,191 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:00,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 62 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:02:00,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-09 07:02:00,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-09 07:02:00,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 327 states have (on average 1.0091743119266054) internal successors, (330), 328 states have internal predecessors, (330), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:02:00,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 342 transitions. [2024-11-09 07:02:00,224 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 342 transitions. Word has length 177 [2024-11-09 07:02:00,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:00,225 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 342 transitions. [2024-11-09 07:02:00,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.8) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:02:00,225 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 342 transitions. [2024-11-09 07:02:00,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-09 07:02:00,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:00,229 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-11-09 07:02:00,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 07:02:00,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-09 07:02:00,430 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:02:00,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:00,430 INFO L85 PathProgramCache]: Analyzing trace with hash 935820277, now seen corresponding path program 3 times [2024-11-09 07:02:00,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:00,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766442302] [2024-11-09 07:02:00,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:00,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:02:00,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [376958636] [2024-11-09 07:02:00,480 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:02:00,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:02:00,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:02:00,482 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:02:00,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:02:00,661 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:02:00,661 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:02:00,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:02:00,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:02:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 368 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:02:00,968 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:02:01,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:01,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766442302] [2024-11-09 07:02:01,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:02:01,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376958636] [2024-11-09 07:02:01,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376958636] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:02:01,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1058471494] [2024-11-09 07:02:01,089 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 07:02:01,089 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:02:01,090 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:02:01,090 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:02:01,090 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:02:03,087 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 07:02:03,102 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:02:27,706 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20579#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_226| Int)) (and (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226|)) (<= (* |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226| |v_ULTIMATE.start_main_~y~0#1_226|) 1537228672809129301))) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 07:02:27,707 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:02:27,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:02:27,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 07:02:27,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597064433] [2024-11-09 07:02:27,707 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:02:27,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:02:27,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:27,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:02:27,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=674, Unknown=1, NotChecked=0, Total=812 [2024-11-09 07:02:27,709 INFO L87 Difference]: Start difference. First operand 341 states and 342 transitions. Second operand has 7 states, 6 states have (on average 36.666666666666664) internal successors, (220), 7 states have internal predecessors, (220), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:02:28,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:28,038 INFO L93 Difference]: Finished difference Result 342 states and 342 transitions. [2024-11-09 07:02:28,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:02:28,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 36.666666666666664) internal successors, (220), 7 states have internal predecessors, (220), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 231 [2024-11-09 07:02:28,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:28,040 INFO L225 Difference]: With dead ends: 342 [2024-11-09 07:02:28,040 INFO L226 Difference]: Without dead ends: 341 [2024-11-09 07:02:28,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 329 SyntacticMatches, 133 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2941 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=137, Invalid=674, Unknown=1, NotChecked=0, Total=812 [2024-11-09 07:02:28,041 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:28,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 71 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:02:28,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-09 07:02:28,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-09 07:02:28,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 327 states have (on average 1.0061162079510704) internal successors, (329), 328 states have internal predecessors, (329), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:02:28,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 341 transitions. [2024-11-09 07:02:28,069 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 341 transitions. Word has length 231 [2024-11-09 07:02:28,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:28,070 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 341 transitions. [2024-11-09 07:02:28,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 36.666666666666664) internal successors, (220), 7 states have internal predecessors, (220), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:02:28,070 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 341 transitions. [2024-11-09 07:02:28,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-09 07:02:28,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:28,072 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1] [2024-11-09 07:02:28,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 07:02:28,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:02:28,273 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:02:28,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:28,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1041886748, now seen corresponding path program 4 times [2024-11-09 07:02:28,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:28,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469253481] [2024-11-09 07:02:28,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:28,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:02:28,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [204451487] [2024-11-09 07:02:28,332 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:02:28,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:02:28,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:02:28,334 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:02:28,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 07:02:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:28,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:02:28,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:02:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 07:02:28,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:02:28,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:28,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469253481] [2024-11-09 07:02:28,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:02:28,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204451487] [2024-11-09 07:02:28,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204451487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:02:28,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2068330750] [2024-11-09 07:02:28,961 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 07:02:28,961 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:02:28,961 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:02:28,961 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:02:28,962 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:02:30,958 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 07:02:30,975 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:03:01,557 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22278#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256) (exists ((|v_ULTIMATE.start_main_~y~0#1_237| Int)) (and (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|)) (<= (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|) 1537228672809129301))))' at error location [2024-11-09 07:03:01,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:03:01,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:03:01,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 07:03:01,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639012124] [2024-11-09 07:03:01,558 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:03:01,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:03:01,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:03:01,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:03:01,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=729, Unknown=1, NotChecked=0, Total=870 [2024-11-09 07:03:01,560 INFO L87 Difference]: Start difference. First operand 341 states and 341 transitions. Second operand has 8 states, 7 states have (on average 38.714285714285715) internal successors, (271), 8 states have internal predecessors, (271), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:03:01,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:01,906 INFO L93 Difference]: Finished difference Result 382 states and 383 transitions. [2024-11-09 07:03:01,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:03:01,907 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 38.714285714285715) internal successors, (271), 8 states have internal predecessors, (271), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 285 [2024-11-09 07:03:01,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:01,909 INFO L225 Difference]: With dead ends: 382 [2024-11-09 07:03:01,909 INFO L226 Difference]: Without dead ends: 381 [2024-11-09 07:03:01,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 402 SyntacticMatches, 167 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3802 ImplicationChecksByTransitivity, 30.5s TimeCoverageRelationStatistics Valid=140, Invalid=729, Unknown=1, NotChecked=0, Total=870 [2024-11-09 07:03:01,910 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:01,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 84 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:03:01,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-09 07:03:01,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 351. [2024-11-09 07:03:01,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 337 states have (on average 1.0059347181008902) internal successors, (339), 338 states have internal predecessors, (339), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:03:01,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 351 transitions. [2024-11-09 07:03:01,938 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 351 transitions. Word has length 285 [2024-11-09 07:03:01,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:01,939 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 351 transitions. [2024-11-09 07:03:01,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 38.714285714285715) internal successors, (271), 8 states have internal predecessors, (271), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:03:01,939 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 351 transitions. [2024-11-09 07:03:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-09 07:03:01,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:01,942 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:01,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 07:03:02,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:02,143 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:03:02,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:02,144 INFO L85 PathProgramCache]: Analyzing trace with hash 800073377, now seen corresponding path program 2 times [2024-11-09 07:03:02,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:03:02,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536171951] [2024-11-09 07:03:02,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:02,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:02,928 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 804 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:03:02,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:03:02,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536171951] [2024-11-09 07:03:02,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536171951] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:03:02,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084905867] [2024-11-09 07:03:02,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:03:02,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:02,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:02,931 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:03:02,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:03:03,556 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 07:03:03,557 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:03:03,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 07:03:03,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 834 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:03:03,988 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:03:04,664 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 804 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:03:04,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084905867] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:03:04,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1870506993] [2024-11-09 07:03:04,667 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-09 07:03:04,667 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:03:04,667 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:03:04,667 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:03:04,667 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:03:07,004 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 07:03:07,019 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:03:49,119 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25140#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_248| Int)) (and (<= |ULTIMATE.start_main_~x~0#1| (+ (* |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248|) 307445734561825860)) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248|)) (= (+ (* (* |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248|) 15) (* (* |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248|) 6) (* 10 (* |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248| |v_ULTIMATE.start_main_~y~0#1_248|))) (+ |v_ULTIMATE.start_main_~y~0#1_248| (* 30 |ULTIMATE.start_main_~x~0#1|))))) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= 21 ~counter~0) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 07:03:49,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:03:49,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:03:49,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 16] total 30 [2024-11-09 07:03:49,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975269863] [2024-11-09 07:03:49,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:03:49,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 07:03:49,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:03:49,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 07:03:49,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=2130, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 07:03:49,123 INFO L87 Difference]: Start difference. First operand 351 states and 351 transitions. Second operand has 30 states, 30 states have (on average 21.3) internal successors, (639), 30 states have internal predecessors, (639), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2024-11-09 07:03:50,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:50,089 INFO L93 Difference]: Finished difference Result 791 states and 798 transitions. [2024-11-09 07:03:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-09 07:03:50,090 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 21.3) internal successors, (639), 30 states have internal predecessors, (639), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) Word has length 339 [2024-11-09 07:03:50,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:50,093 INFO L225 Difference]: With dead ends: 791 [2024-11-09 07:03:50,094 INFO L226 Difference]: Without dead ends: 780 [2024-11-09 07:03:50,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1058 GetRequests, 777 SyntacticMatches, 206 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12286 ImplicationChecksByTransitivity, 43.0s TimeCoverageRelationStatistics Valid=1130, Invalid=4722, Unknown=0, NotChecked=0, Total=5852 [2024-11-09 07:03:50,097 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 162 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:50,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 955 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:03:50,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-09 07:03:50,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 773. [2024-11-09 07:03:50,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 743 states have (on average 1.012113055181696) internal successors, (752), 744 states have internal predecessors, (752), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 07:03:50,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 780 transitions. [2024-11-09 07:03:50,168 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 780 transitions. Word has length 339 [2024-11-09 07:03:50,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:50,169 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 780 transitions. [2024-11-09 07:03:50,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 21.3) internal successors, (639), 30 states have internal predecessors, (639), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2024-11-09 07:03:50,169 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 780 transitions. [2024-11-09 07:03:50,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-09 07:03:50,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:50,172 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1] [2024-11-09 07:03:50,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 07:03:50,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:50,373 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:03:50,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:50,374 INFO L85 PathProgramCache]: Analyzing trace with hash -323232509, now seen corresponding path program 5 times [2024-11-09 07:03:50,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:03:50,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738961198] [2024-11-09 07:03:50,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:50,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:03:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:03:50,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750577206] [2024-11-09 07:03:50,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:03:50,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:50,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:50,465 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:03:50,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 07:03:51,053 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 07:03:51,053 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:03:51,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 07:03:51,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 0 proven. 864 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:03:51,436 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:03:51,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:03:51,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738961198] [2024-11-09 07:03:51,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:03:51,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750577206] [2024-11-09 07:03:51,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750577206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:03:51,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1388467393] [2024-11-09 07:03:51,559 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 07:03:51,560 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:03:51,560 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:03:51,560 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:03:51,560 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:03:53,591 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 07:03:53,606 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:04:34,117 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28001#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (exists ((|v_ULTIMATE.start_main_~y~0#1_260| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260|) 1537228672809129301) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260| |v_ULTIMATE.start_main_~y~0#1_260|)))) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 07:04:34,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:04:34,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:04:34,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 07:04:34,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131372064] [2024-11-09 07:04:34,118 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:04:34,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:04:34,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:04:34,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:04:34,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2024-11-09 07:04:34,120 INFO L87 Difference]: Start difference. First operand 773 states and 780 transitions. Second operand has 9 states, 8 states have (on average 40.25) internal successors, (322), 9 states have internal predecessors, (322), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:04:34,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:34,528 INFO L93 Difference]: Finished difference Result 774 states and 780 transitions. [2024-11-09 07:04:34,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:04:34,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 40.25) internal successors, (322), 9 states have internal predecessors, (322), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 339 [2024-11-09 07:04:34,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:34,532 INFO L225 Difference]: With dead ends: 774 [2024-11-09 07:04:34,532 INFO L226 Difference]: Without dead ends: 773 [2024-11-09 07:04:34,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 475 SyntacticMatches, 202 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4703 ImplicationChecksByTransitivity, 40.4s TimeCoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2024-11-09 07:04:34,533 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:34,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 89 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:04:34,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-09 07:04:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 773. [2024-11-09 07:04:34,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 743 states have (on average 1.0107671601615074) internal successors, (751), 744 states have internal predecessors, (751), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 07:04:34,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 779 transitions. [2024-11-09 07:04:34,587 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 779 transitions. Word has length 339 [2024-11-09 07:04:34,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:34,588 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 779 transitions. [2024-11-09 07:04:34,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 40.25) internal successors, (322), 9 states have internal predecessors, (322), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:04:34,588 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 779 transitions. [2024-11-09 07:04:34,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-09 07:04:34,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:34,591 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1] [2024-11-09 07:04:34,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 07:04:34,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 07:04:34,792 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:04:34,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:34,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1794652330, now seen corresponding path program 6 times [2024-11-09 07:04:34,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:04:34,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469228010] [2024-11-09 07:04:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:04:34,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277164187] [2024-11-09 07:04:34,881 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:04:34,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:34,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:04:34,883 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:04:34,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 07:04:35,473 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:04:35,473 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:04:35,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:04:35,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 07:04:35,921 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:04:36,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:04:36,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469228010] [2024-11-09 07:04:36,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:04:36,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277164187] [2024-11-09 07:04:36,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277164187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:36,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [370217726] [2024-11-09 07:04:36,053 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 07:04:36,053 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:04:36,053 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:04:36,053 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:04:36,053 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:04:38,025 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 07:04:38,041 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:05:14,935 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30953#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256) (exists ((|v_ULTIMATE.start_main_~y~0#1_273| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273|) 1537228672809129301) (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273| |v_ULTIMATE.start_main_~y~0#1_273|)))))' at error location [2024-11-09 07:05:14,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:05:14,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:14,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 07:05:14,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46241034] [2024-11-09 07:05:14,936 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:05:14,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:05:14,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:05:14,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:05:14,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:05:14,937 INFO L87 Difference]: Start difference. First operand 773 states and 779 transitions. Second operand has 10 states, 9 states have (on average 41.44444444444444) internal successors, (373), 10 states have internal predecessors, (373), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:05:15,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:15,485 INFO L93 Difference]: Finished difference Result 774 states and 779 transitions. [2024-11-09 07:05:15,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:05:15,486 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 41.44444444444444) internal successors, (373), 10 states have internal predecessors, (373), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 393 [2024-11-09 07:05:15,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:15,489 INFO L225 Difference]: With dead ends: 774 [2024-11-09 07:05:15,489 INFO L226 Difference]: Without dead ends: 773 [2024-11-09 07:05:15,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 549 SyntacticMatches, 235 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5709 ImplicationChecksByTransitivity, 36.8s TimeCoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:05:15,491 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:15,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 100 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:05:15,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-09 07:05:15,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 773. [2024-11-09 07:05:15,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 743 states have (on average 1.009421265141319) internal successors, (750), 744 states have internal predecessors, (750), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 07:05:15,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 778 transitions. [2024-11-09 07:05:15,546 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 778 transitions. Word has length 393 [2024-11-09 07:05:15,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:15,547 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 778 transitions. [2024-11-09 07:05:15,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 41.44444444444444) internal successors, (373), 10 states have internal predecessors, (373), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:05:15,547 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 778 transitions. [2024-11-09 07:05:15,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2024-11-09 07:05:15,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:15,550 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1] [2024-11-09 07:05:15,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:15,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 07:05:15,751 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:05:15,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:15,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1418064145, now seen corresponding path program 7 times [2024-11-09 07:05:15,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:15,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487189953] [2024-11-09 07:05:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:15,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:05:15,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017671641] [2024-11-09 07:05:15,864 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:05:15,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:15,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:05:15,866 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:15,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 07:05:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:16,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 07:05:16,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:17,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 1568 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:05:17,063 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:05:17,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:05:17,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487189953] [2024-11-09 07:05:17,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:05:17,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017671641] [2024-11-09 07:05:17,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017671641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:17,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1362377271] [2024-11-09 07:05:17,198 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 07:05:17,198 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:05:17,198 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:05:17,198 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:05:17,199 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:05:19,503 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 72 for LOIs [2024-11-09 07:05:19,518 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:06:07,892 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34068#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (exists ((|v_ULTIMATE.start_main_~y~0#1_287| Int)) (and (<= 1537228672809129302 (* |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287|)) (<= (* |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287| |v_ULTIMATE.start_main_~y~0#1_287|) 1537228672809129301))) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-09 07:06:07,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:06:07,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:06:07,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 07:06:07,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575678292] [2024-11-09 07:06:07,893 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:06:07,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 07:06:07,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:07,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 07:06:07,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=823, Unknown=0, NotChecked=0, Total=992 [2024-11-09 07:06:07,895 INFO L87 Difference]: Start difference. First operand 773 states and 778 transitions. Second operand has 11 states, 10 states have (on average 42.4) internal successors, (424), 11 states have internal predecessors, (424), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 07:06:08,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:08,420 INFO L93 Difference]: Finished difference Result 774 states and 778 transitions. [2024-11-09 07:06:08,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 07:06:08,420 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 42.4) internal successors, (424), 11 states have internal predecessors, (424), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 447 [2024-11-09 07:06:08,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:08,423 INFO L225 Difference]: With dead ends: 774 [2024-11-09 07:06:08,423 INFO L226 Difference]: Without dead ends: 773 [2024-11-09 07:06:08,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 623 SyntacticMatches, 268 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6771 ImplicationChecksByTransitivity, 48.3s TimeCoverageRelationStatistics Valid=169, Invalid=823, Unknown=0, NotChecked=0, Total=992 [2024-11-09 07:06:08,424 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:08,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 113 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:06:08,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-09 07:06:08,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 773. [2024-11-09 07:06:08,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 743 states have (on average 1.0080753701211305) internal successors, (749), 744 states have internal predecessors, (749), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 07:06:08,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 777 transitions. [2024-11-09 07:06:08,481 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 777 transitions. Word has length 447 [2024-11-09 07:06:08,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:08,482 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 777 transitions. [2024-11-09 07:06:08,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 42.4) internal successors, (424), 11 states have internal predecessors, (424), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 07:06:08,483 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 777 transitions. [2024-11-09 07:06:08,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-11-09 07:06:08,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:08,487 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1] [2024-11-09 07:06:08,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 07:06:08,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 07:06:08,687 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2024-11-09 07:06:08,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1333266888, now seen corresponding path program 8 times [2024-11-09 07:06:08,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:08,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054839532] [2024-11-09 07:06:08,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:08,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:06:08,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1113662777] [2024-11-09 07:06:08,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:06:08,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:08,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:06:08,820 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:06:08,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92962a7b-b3c2-4cf1-b5fa-0b97c318e101/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process