./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ --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 71daa4447a811360729951159d42c752715aafb50c3ad4dcb2ed5d242a4f4a78 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:03:30,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:03:31,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 05:03:31,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:03:31,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:03:31,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:03:31,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:03:31,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:03:31,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:03:31,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:03:31,136 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:03:31,137 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:03:31,137 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:03:31,139 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:03:31,140 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:03:31,140 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:03:31,141 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:03:31,141 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:03:31,142 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:03:31,142 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:03:31,143 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:03:31,144 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:03:31,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:03:31,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:03:31,146 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:03:31,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:03:31,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:03:31,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:03:31,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:03:31,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:03:31,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:03:31,150 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:03:31,151 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:03:31,151 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:03:31,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:03:31,152 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:03:31,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:03:31,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:03:31,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:03:31,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:03:31,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:03:31,154 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:03:31,154 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:03:31,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:03:31,156 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:03:31,156 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:03:31,156 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:03:31,157 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_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71daa4447a811360729951159d42c752715aafb50c3ad4dcb2ed5d242a4f4a78 [2023-11-19 05:03:31,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:03:31,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:03:31,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:03:31,494 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:03:31,496 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:03:31,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2023-11-19 05:03:34,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:03:34,906 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:03:34,907 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2023-11-19 05:03:34,922 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/data/056317e91/a4fdf1471b744b4aa97fdb09b1737aa7/FLAG60619f3ab [2023-11-19 05:03:34,938 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/data/056317e91/a4fdf1471b744b4aa97fdb09b1737aa7 [2023-11-19 05:03:34,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:03:34,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:03:34,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:03:34,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:03:34,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:03:34,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:34" (1/1) ... [2023-11-19 05:03:34,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330107da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:34, skipping insertion in model container [2023-11-19 05:03:34,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:34" (1/1) ... [2023-11-19 05:03:35,010 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:03:35,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:03:35,315 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:03:35,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:03:35,436 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:03:35,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35 WrapperNode [2023-11-19 05:03:35,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:03:35,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:03:35,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:03:35,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:03:35,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,505 INFO L138 Inliner]: procedures = 116, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-11-19 05:03:35,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:03:35,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:03:35,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:03:35,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:03:35,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,538 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,544 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:03:35,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:03:35,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:03:35,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:03:35,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (1/1) ... [2023-11-19 05:03:35,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:03:35,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:35,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:03:35,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:03:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:03:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:03:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:03:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:03:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:03:35,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:03:35,817 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:03:35,824 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:03:36,134 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:03:36,220 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:03:36,227 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 05:03:36,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:36 BoogieIcfgContainer [2023-11-19 05:03:36,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:03:36,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:03:36,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:03:36,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:03:36,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:03:34" (1/3) ... [2023-11-19 05:03:36,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ae9e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:03:36, skipping insertion in model container [2023-11-19 05:03:36,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:35" (2/3) ... [2023-11-19 05:03:36,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ae9e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:03:36, skipping insertion in model container [2023-11-19 05:03:36,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:36" (3/3) ... [2023-11-19 05:03:36,243 INFO L112 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca-2.i [2023-11-19 05:03:36,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:03:36,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-19 05:03:36,326 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:03:36,334 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3de06ddb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:03:36,334 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-19 05:03:36,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 20 states have (on average 1.9) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:36,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 05:03:36,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:36,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 05:03:36,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:36,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:36,352 INFO L85 PathProgramCache]: Analyzing trace with hash 121269, now seen corresponding path program 1 times [2023-11-19 05:03:36,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:36,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564849978] [2023-11-19 05:03:36,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:36,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:36,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:36,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564849978] [2023-11-19 05:03:36,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564849978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:36,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:36,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:03:36,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498510278] [2023-11-19 05:03:36,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:36,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:36,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:36,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:36,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:03:36,796 INFO L87 Difference]: Start difference. First operand has 35 states, 20 states have (on average 1.9) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2023-11-19 05:03:36,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:36,902 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2023-11-19 05:03:36,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:03:36,905 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 [2023-11-19 05:03:36,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:36,915 INFO L225 Difference]: With dead ends: 35 [2023-11-19 05:03:36,915 INFO L226 Difference]: Without dead ends: 33 [2023-11-19 05:03:36,919 INFO L412 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 [2023-11-19 05:03:36,924 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 64 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:36,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 33 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:36,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-19 05:03:36,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-19 05:03:36,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.8) internal successors, (36), 32 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) [2023-11-19 05:03:36,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2023-11-19 05:03:36,964 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 3 [2023-11-19 05:03:36,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:36,965 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2023-11-19 05:03:36,965 INFO L496 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) [2023-11-19 05:03:36,965 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2023-11-19 05:03:36,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 05:03:36,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:36,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 05:03:36,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:03:36,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:36,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:36,968 INFO L85 PathProgramCache]: Analyzing trace with hash 120920, now seen corresponding path program 1 times [2023-11-19 05:03:36,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:36,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583369583] [2023-11-19 05:03:36,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:36,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:37,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:37,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:37,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583369583] [2023-11-19 05:03:37,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583369583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:37,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:37,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:03:37,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707207270] [2023-11-19 05:03:37,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:37,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:37,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:37,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:37,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:03:37,036 INFO L87 Difference]: Start difference. First operand 33 states and 36 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) [2023-11-19 05:03:37,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:37,071 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2023-11-19 05:03:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:03:37,071 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 [2023-11-19 05:03:37,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:37,072 INFO L225 Difference]: With dead ends: 38 [2023-11-19 05:03:37,072 INFO L226 Difference]: Without dead ends: 36 [2023-11-19 05:03:37,073 INFO L412 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 [2023-11-19 05:03:37,075 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 3 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 89 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 [2023-11-19 05:03:37,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 89 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:37,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-19 05:03:37,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-19 05:03:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:37,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-11-19 05:03:37,083 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 3 [2023-11-19 05:03:37,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:37,083 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-11-19 05:03:37,084 INFO L496 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) [2023-11-19 05:03:37,084 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-11-19 05:03:37,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 05:03:37,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:37,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 05:03:37,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:03:37,085 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:37,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:37,086 INFO L85 PathProgramCache]: Analyzing trace with hash 3759400, now seen corresponding path program 1 times [2023-11-19 05:03:37,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:37,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057411506] [2023-11-19 05:03:37,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:37,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:37,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:37,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:37,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057411506] [2023-11-19 05:03:37,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057411506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:37,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:37,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:03:37,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979935237] [2023-11-19 05:03:37,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:37,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:37,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:37,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:37,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:03:37,201 INFO L87 Difference]: Start difference. First operand 36 states and 40 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) [2023-11-19 05:03:37,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:37,247 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2023-11-19 05:03:37,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:03:37,247 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 [2023-11-19 05:03:37,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:37,249 INFO L225 Difference]: With dead ends: 63 [2023-11-19 05:03:37,249 INFO L226 Difference]: Without dead ends: 62 [2023-11-19 05:03:37,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:03:37,251 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 29 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:37,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 88 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:37,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-19 05:03:37,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 38. [2023-11-19 05:03:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.68) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:37,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2023-11-19 05:03:37,260 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 4 [2023-11-19 05:03:37,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:37,260 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2023-11-19 05:03:37,260 INFO L496 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) [2023-11-19 05:03:37,261 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2023-11-19 05:03:37,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 05:03:37,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:37,262 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 05:03:37,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:03:37,262 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:37,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:37,263 INFO L85 PathProgramCache]: Analyzing trace with hash -692584965, now seen corresponding path program 1 times [2023-11-19 05:03:37,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:37,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579272049] [2023-11-19 05:03:37,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:37,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:37,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:37,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579272049] [2023-11-19 05:03:37,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579272049] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:37,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735041204] [2023-11-19 05:03:37,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:37,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:37,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:37,367 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:37,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:03:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:37,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:03:37,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:37,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:03:37,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735041204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:37,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:03:37,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-19 05:03:37,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63831958] [2023-11-19 05:03:37,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:37,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:03:37,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:37,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:03:37,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:03:37,518 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-19 05:03:37,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:37,590 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2023-11-19 05:03:37,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:03:37,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 [2023-11-19 05:03:37,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:37,592 INFO L225 Difference]: With dead ends: 38 [2023-11-19 05:03:37,592 INFO L226 Difference]: Without dead ends: 37 [2023-11-19 05:03:37,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:03:37,596 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 7 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:37,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 140 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:37,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-19 05:03:37,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-19 05:03:37,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.64) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:37,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2023-11-19 05:03:37,611 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 6 [2023-11-19 05:03:37,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:37,611 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2023-11-19 05:03:37,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-19 05:03:37,612 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2023-11-19 05:03:37,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:03:37,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:37,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:37,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 05:03:37,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:37,828 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:37,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:37,828 INFO L85 PathProgramCache]: Analyzing trace with hash 327205963, now seen corresponding path program 1 times [2023-11-19 05:03:37,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:37,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858399023] [2023-11-19 05:03:37,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:37,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:37,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:37,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:37,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858399023] [2023-11-19 05:03:37,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858399023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:37,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:37,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:03:37,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390088712] [2023-11-19 05:03:37,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:37,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:37,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:37,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:37,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:03:37,892 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:37,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:37,949 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2023-11-19 05:03:37,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:03:37,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2023-11-19 05:03:37,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:37,951 INFO L225 Difference]: With dead ends: 37 [2023-11-19 05:03:37,951 INFO L226 Difference]: Without dead ends: 36 [2023-11-19 05:03:37,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:03:37,953 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 25 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:37,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 57 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:37,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-19 05:03:37,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-19 05:03:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.6) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-11-19 05:03:37,968 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 7 [2023-11-19 05:03:37,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:37,969 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-11-19 05:03:37,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:37,969 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-11-19 05:03:37,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:03:37,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:37,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:37,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:03:37,970 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:37,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:37,971 INFO L85 PathProgramCache]: Analyzing trace with hash 327204479, now seen corresponding path program 1 times [2023-11-19 05:03:37,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:37,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718108670] [2023-11-19 05:03:37,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:37,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:38,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:38,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:38,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718108670] [2023-11-19 05:03:38,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718108670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:38,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:38,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:03:38,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441037988] [2023-11-19 05:03:38,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:38,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:03:38,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:38,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:03:38,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:38,024 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:38,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:38,098 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2023-11-19 05:03:38,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:03:38,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-19 05:03:38,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:38,100 INFO L225 Difference]: With dead ends: 56 [2023-11-19 05:03:38,102 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 05:03:38,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:38,106 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 19 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:38,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 34 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:03:38,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 05:03:38,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2023-11-19 05:03:38,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.59375) internal successors, (51), 42 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:38,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2023-11-19 05:03:38,116 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 7 [2023-11-19 05:03:38,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:38,116 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2023-11-19 05:03:38,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:38,117 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2023-11-19 05:03:38,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:03:38,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:38,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:38,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 05:03:38,118 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:38,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:38,119 INFO L85 PathProgramCache]: Analyzing trace with hash 4713445, now seen corresponding path program 1 times [2023-11-19 05:03:38,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:38,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208383772] [2023-11-19 05:03:38,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:38,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:38,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:38,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:38,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208383772] [2023-11-19 05:03:38,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208383772] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:38,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005523411] [2023-11-19 05:03:38,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:38,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:38,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:38,198 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:38,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 05:03:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:38,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 05:03:38,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:38,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:38,331 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:38,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:38,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005523411] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:38,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1611851845] [2023-11-19 05:03:38,422 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2023-11-19 05:03:38,423 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:03:38,427 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:03:38,433 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:03:38,434 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:03:39,595 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:03:39,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1611851845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:39,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:03:39,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 14 [2023-11-19 05:03:39,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4848030] [2023-11-19 05:03:39,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:39,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:03:39,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:39,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:03:39,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-11-19 05:03:39,818 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:39,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:39,912 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2023-11-19 05:03:39,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:03:39,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2023-11-19 05:03:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:39,918 INFO L225 Difference]: With dead ends: 43 [2023-11-19 05:03:39,918 INFO L226 Difference]: Without dead ends: 42 [2023-11-19 05:03:39,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2023-11-19 05:03:39,920 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 56 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:39,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 63 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:39,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-19 05:03:39,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2023-11-19 05:03:39,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.6) internal successors, (48), 39 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:39,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2023-11-19 05:03:39,949 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 7 [2023-11-19 05:03:39,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:39,949 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2023-11-19 05:03:39,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:39,950 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2023-11-19 05:03:39,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:03:39,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:39,951 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-19 05:03:39,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:40,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 05:03:40,169 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:40,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:40,169 INFO L85 PathProgramCache]: Analyzing trace with hash 4702618, now seen corresponding path program 1 times [2023-11-19 05:03:40,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:40,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114013307] [2023-11-19 05:03:40,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:40,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:40,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:40,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:40,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114013307] [2023-11-19 05:03:40,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114013307] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:40,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163482452] [2023-11-19 05:03:40,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:40,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:40,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:40,285 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:40,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 05:03:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:40,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:03:40,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:40,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:40,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:40,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163482452] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:40,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [863748150] [2023-11-19 05:03:40,433 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2023-11-19 05:03:40,434 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:03:40,434 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:03:40,436 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:03:40,437 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:03:41,017 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:03:41,465 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '826#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= 2147483647 |ULTIMATE.start_main_#t~post10#1|) (<= 1 |ULTIMATE.start_main_~array_size~0#1|))' at error location [2023-11-19 05:03:41,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 05:03:41,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:03:41,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-11-19 05:03:41,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644980841] [2023-11-19 05:03:41,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:03:41,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 05:03:41,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:41,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 05:03:41,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-19 05:03:41,468 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:41,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:41,559 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2023-11-19 05:03:41,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 05:03:41,560 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 05:03:41,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:41,562 INFO L225 Difference]: With dead ends: 50 [2023-11-19 05:03:41,562 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 05:03:41,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2023-11-19 05:03:41,563 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 12 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:41,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 161 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:41,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 05:03:41,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 05:03:41,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.5384615384615385) internal successors, (60), 48 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:41,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2023-11-19 05:03:41,572 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 7 [2023-11-19 05:03:41,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:41,572 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2023-11-19 05:03:41,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:41,573 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2023-11-19 05:03:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 05:03:41,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:41,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:41,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:41,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 05:03:41,794 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:41,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:41,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1553450369, now seen corresponding path program 1 times [2023-11-19 05:03:41,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:41,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209230761] [2023-11-19 05:03:41,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:41,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:41,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:41,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:41,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209230761] [2023-11-19 05:03:41,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209230761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:41,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:41,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:03:41,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345719487] [2023-11-19 05:03:41,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:41,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:03:41,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:41,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:03:41,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:03:41,878 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:41,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:41,924 INFO L93 Difference]: Finished difference Result 82 states and 99 transitions. [2023-11-19 05:03:41,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:03:41,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 05:03:41,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:41,925 INFO L225 Difference]: With dead ends: 82 [2023-11-19 05:03:41,925 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 05:03:41,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:03:41,928 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:41,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 104 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:41,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 05:03:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 05:03:41,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.5128205128205128) internal successors, (59), 48 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2023-11-19 05:03:41,948 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 8 [2023-11-19 05:03:41,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:41,948 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2023-11-19 05:03:41,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:41,948 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2023-11-19 05:03:41,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 05:03:41,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:41,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:41,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 05:03:41,950 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:41,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:41,951 INFO L85 PathProgramCache]: Analyzing trace with hash -2129220162, now seen corresponding path program 1 times [2023-11-19 05:03:41,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:41,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808664644] [2023-11-19 05:03:41,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:41,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:42,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:42,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:42,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808664644] [2023-11-19 05:03:42,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808664644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:42,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362337630] [2023-11-19 05:03:42,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:42,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:42,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:42,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:42,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 05:03:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:42,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:03:42,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:03:42,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:03:42,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362337630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:42,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:03:42,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-11-19 05:03:42,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436782598] [2023-11-19 05:03:42,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:42,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:42,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:42,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:42,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:03:42,148 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:42,182 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2023-11-19 05:03:42,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:03:42,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 05:03:42,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:42,183 INFO L225 Difference]: With dead ends: 49 [2023-11-19 05:03:42,183 INFO L226 Difference]: Without dead ends: 48 [2023-11-19 05:03:42,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:03:42,184 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:42,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 52 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:42,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-19 05:03:42,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-19 05:03:42,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.4871794871794872) internal successors, (58), 47 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2023-11-19 05:03:42,191 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 11 [2023-11-19 05:03:42,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:42,191 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2023-11-19 05:03:42,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,192 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2023-11-19 05:03:42,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 05:03:42,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:42,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:42,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:42,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 05:03:42,416 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:42,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:42,416 INFO L85 PathProgramCache]: Analyzing trace with hash -2129266193, now seen corresponding path program 1 times [2023-11-19 05:03:42,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:42,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456083252] [2023-11-19 05:03:42,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:42,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:42,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:03:42,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:42,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456083252] [2023-11-19 05:03:42,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456083252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:42,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:42,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:03:42,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632664063] [2023-11-19 05:03:42,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:42,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:03:42,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:42,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:03:42,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:42,444 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:42,483 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2023-11-19 05:03:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:03:42,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 05:03:42,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:42,485 INFO L225 Difference]: With dead ends: 60 [2023-11-19 05:03:42,485 INFO L226 Difference]: Without dead ends: 57 [2023-11-19 05:03:42,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:42,486 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:42,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 33 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:42,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-19 05:03:42,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 49. [2023-11-19 05:03:42,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.425) internal successors, (57), 48 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2023-11-19 05:03:42,493 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 11 [2023-11-19 05:03:42,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:42,493 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2023-11-19 05:03:42,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,494 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2023-11-19 05:03:42,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 05:03:42,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:42,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:42,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 05:03:42,495 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:42,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:42,495 INFO L85 PathProgramCache]: Analyzing trace with hash -597067631, now seen corresponding path program 1 times [2023-11-19 05:03:42,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:42,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187753224] [2023-11-19 05:03:42,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:42,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:03:42,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:42,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187753224] [2023-11-19 05:03:42,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187753224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:42,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:42,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:03:42,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394811850] [2023-11-19 05:03:42,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:42,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:42,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:42,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:42,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:03:42,531 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:42,575 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2023-11-19 05:03:42,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:03:42,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2023-11-19 05:03:42,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:42,577 INFO L225 Difference]: With dead ends: 50 [2023-11-19 05:03:42,577 INFO L226 Difference]: Without dead ends: 46 [2023-11-19 05:03:42,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:03:42,578 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:42,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 27 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:42,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-19 05:03:42,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2023-11-19 05:03:42,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.325) internal successors, (53), 44 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2023-11-19 05:03:42,611 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 14 [2023-11-19 05:03:42,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:42,611 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2023-11-19 05:03:42,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,611 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2023-11-19 05:03:42,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 05:03:42,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:42,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:42,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 05:03:42,613 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:42,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:42,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1329227277, now seen corresponding path program 1 times [2023-11-19 05:03:42,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:42,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331296688] [2023-11-19 05:03:42,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:42,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:42,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:03:42,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:42,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331296688] [2023-11-19 05:03:42,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331296688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:42,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:42,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:03:42,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818807110] [2023-11-19 05:03:42,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:42,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:03:42,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:42,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:03:42,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:03:42,668 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:42,725 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2023-11-19 05:03:42,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:03:42,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2023-11-19 05:03:42,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:42,727 INFO L225 Difference]: With dead ends: 52 [2023-11-19 05:03:42,727 INFO L226 Difference]: Without dead ends: 51 [2023-11-19 05:03:42,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:03:42,729 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:42,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 40 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:42,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-19 05:03:42,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2023-11-19 05:03:42,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 43 states have (on average 1.302325581395349) internal successors, (56), 47 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2023-11-19 05:03:42,740 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 15 [2023-11-19 05:03:42,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:42,740 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2023-11-19 05:03:42,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:42,741 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2023-11-19 05:03:42,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 05:03:42,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:42,743 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1] [2023-11-19 05:03:42,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 05:03:42,744 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:42,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:42,745 INFO L85 PathProgramCache]: Analyzing trace with hash -445914979, now seen corresponding path program 2 times [2023-11-19 05:03:42,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:42,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671420135] [2023-11-19 05:03:42,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:42,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:42,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:42,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671420135] [2023-11-19 05:03:42,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671420135] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:42,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642863326] [2023-11-19 05:03:42,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 05:03:42,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:42,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:42,913 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:42,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 05:03:42,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-19 05:03:42,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 05:03:42,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:03:42,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:43,153 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 05:03:43,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:43,201 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 05:03:43,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642863326] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:43,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1115024419] [2023-11-19 05:03:43,203 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2023-11-19 05:03:43,203 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:03:43,204 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:03:43,204 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:03:43,204 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:03:43,734 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:03:43,959 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1741#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= 2147483647 |ULTIMATE.start_main_#t~post10#1|) (<= 1 |ULTIMATE.start_main_~array_size~0#1|))' at error location [2023-11-19 05:03:43,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 05:03:43,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:03:43,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 14 [2023-11-19 05:03:43,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065784183] [2023-11-19 05:03:43,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:03:43,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-19 05:03:43,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:43,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-19 05:03:43,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2023-11-19 05:03:43,961 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:44,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:44,258 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2023-11-19 05:03:44,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 05:03:44,259 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-19 05:03:44,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:44,259 INFO L225 Difference]: With dead ends: 51 [2023-11-19 05:03:44,260 INFO L226 Difference]: Without dead ends: 50 [2023-11-19 05:03:44,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 34 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=209, Invalid=661, Unknown=0, NotChecked=0, Total=870 [2023-11-19 05:03:44,261 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 72 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:44,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 105 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:44,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-19 05:03:44,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 36. [2023-11-19 05:03:44,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.28125) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2023-11-19 05:03:44,266 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 16 [2023-11-19 05:03:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:44,267 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2023-11-19 05:03:44,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:44,267 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-11-19 05:03:44,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 05:03:44,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:44,267 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:44,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:44,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 05:03:44,468 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:44,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:44,469 INFO L85 PathProgramCache]: Analyzing trace with hash 588736540, now seen corresponding path program 1 times [2023-11-19 05:03:44,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:44,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105878487] [2023-11-19 05:03:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:44,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:44,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:03:44,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:44,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105878487] [2023-11-19 05:03:44,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105878487] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:44,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933270887] [2023-11-19 05:03:44,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:44,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:44,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:44,552 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:44,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 05:03:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:44,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 05:03:44,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:44,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:03:44,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:44,743 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:03:44,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933270887] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:44,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [293226993] [2023-11-19 05:03:44,746 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-11-19 05:03:44,746 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:03:44,747 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:03:44,747 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:03:44,747 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:03:49,261 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:03:50,959 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1981#(and (<= 2147483649 |ULTIMATE.start_bubbleSort_~j~0#1|) (<= |ULTIMATE.start_bubbleSort_#in~array_size#1| 2147483648) (<= 2 |ULTIMATE.start_main_~array_size~0#1|) (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2147483648) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483648) (<= 1 |ULTIMATE.start_bubbleSort_~i~0#1|) (<= |ULTIMATE.start_bubbleSort_~i~0#1| 2147483647) (<= 2 |ULTIMATE.start_bubbleSort_~array_size#1|) (<= 2 |ULTIMATE.start_bubbleSort_#in~array_size#1|))' at error location [2023-11-19 05:03:50,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 05:03:50,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:03:50,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 12 [2023-11-19 05:03:50,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111594301] [2023-11-19 05:03:50,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:03:50,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 05:03:50,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:50,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 05:03:50,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2023-11-19 05:03:50,962 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 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) [2023-11-19 05:03:51,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:51,411 INFO L93 Difference]: Finished difference Result 139 states and 164 transitions. [2023-11-19 05:03:51,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-19 05:03:51,412 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 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 18 [2023-11-19 05:03:51,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:51,413 INFO L225 Difference]: With dead ends: 139 [2023-11-19 05:03:51,413 INFO L226 Difference]: Without dead ends: 110 [2023-11-19 05:03:51,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 28 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=124, Invalid=932, Unknown=0, NotChecked=0, Total=1056 [2023-11-19 05:03:51,418 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 110 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:51,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 129 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:03:51,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-19 05:03:51,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 51. [2023-11-19 05:03:51,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 50 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:51,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2023-11-19 05:03:51,428 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 18 [2023-11-19 05:03:51,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:51,430 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2023-11-19 05:03:51,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 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) [2023-11-19 05:03:51,430 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2023-11-19 05:03:51,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 05:03:51,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:51,432 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:51,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:51,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-19 05:03:51,655 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:51,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:51,655 INFO L85 PathProgramCache]: Analyzing trace with hash 745235229, now seen corresponding path program 1 times [2023-11-19 05:03:51,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:51,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019512312] [2023-11-19 05:03:51,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:51,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:51,743 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 05:03:51,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:51,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019512312] [2023-11-19 05:03:51,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019512312] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:51,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366486220] [2023-11-19 05:03:51,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:51,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:51,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:51,745 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:51,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 05:03:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:51,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 05:03:51,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:51,990 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:51,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:03:52,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366486220] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:52,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [254702995] [2023-11-19 05:03:52,118 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-11-19 05:03:52,118 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:03:52,118 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:03:52,118 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:03:52,118 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:03:52,722 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:03:54,011 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2395#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2147483647) (<= 2 |ULTIMATE.start_main_~array_size~0#1|) (<= |ULTIMATE.start_bubbleSort_#in~array_size#1| 2147483647) (<= 2147483647 |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= 1 |ULTIMATE.start_bubbleSort_~i~0#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (<= (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ (- 4) (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))) (<= 2 |ULTIMATE.start_main_~numbers~0#1.base|) (= |ULTIMATE.start_bubbleSort_~j~0#1| |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= 2 |ULTIMATE.start_main_#t~malloc9#1.base|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (<= 2 |ULTIMATE.start_bubbleSort_~array_size#1|) (= |ULTIMATE.start_bubbleSort_~numbers#1.offset| 0) (= |ULTIMATE.start_bubbleSort_#in~numbers#1.offset| 0) (<= 2 |ULTIMATE.start_bubbleSort_#in~array_size#1|) (<= |ULTIMATE.start_bubbleSort_~j~0#1| 2147483648) (= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= 2 |ULTIMATE.start_bubbleSort_~numbers#1.base|) (<= 2 |ULTIMATE.start_bubbleSort_#in~numbers#1.base|) (<= |ULTIMATE.start_bubbleSort_~i~0#1| 2147483646))' at error location [2023-11-19 05:03:54,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 05:03:54,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:03:54,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 19 [2023-11-19 05:03:54,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712597203] [2023-11-19 05:03:54,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:03:54,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-19 05:03:54,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:54,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-19 05:03:54,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2023-11-19 05:03:54,014 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:54,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:54,552 INFO L93 Difference]: Finished difference Result 165 states and 191 transitions. [2023-11-19 05:03:54,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-19 05:03:54,553 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 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 25 [2023-11-19 05:03:54,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:54,554 INFO L225 Difference]: With dead ends: 165 [2023-11-19 05:03:54,554 INFO L226 Difference]: Without dead ends: 128 [2023-11-19 05:03:54,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 39 SyntacticMatches, 11 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=235, Invalid=1927, Unknown=0, NotChecked=0, Total=2162 [2023-11-19 05:03:54,556 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 194 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:54,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 100 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:03:54,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-19 05:03:54,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 71. [2023-11-19 05:03:54,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 70 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:54,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 82 transitions. [2023-11-19 05:03:54,569 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 82 transitions. Word has length 25 [2023-11-19 05:03:54,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:54,570 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 82 transitions. [2023-11-19 05:03:54,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:54,570 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 82 transitions. [2023-11-19 05:03:54,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 05:03:54,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:54,572 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:54,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 05:03:54,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-19 05:03:54,794 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:54,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:54,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1681947368, now seen corresponding path program 1 times [2023-11-19 05:03:54,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:54,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044682359] [2023-11-19 05:03:54,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:54,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:54,831 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 05:03:54,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:54,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044682359] [2023-11-19 05:03:54,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044682359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:54,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:54,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:03:54,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227617613] [2023-11-19 05:03:54,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:54,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:03:54,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:54,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:03:54,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:54,834 INFO L87 Difference]: Start difference. First operand 71 states and 82 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:54,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:54,861 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2023-11-19 05:03:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:03:54,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 29 [2023-11-19 05:03:54,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:54,863 INFO L225 Difference]: With dead ends: 72 [2023-11-19 05:03:54,863 INFO L226 Difference]: Without dead ends: 69 [2023-11-19 05:03:54,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:54,864 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:54,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 17 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:03:54,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-19 05:03:54,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2023-11-19 05:03:54,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 67 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:54,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2023-11-19 05:03:54,874 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 29 [2023-11-19 05:03:54,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:54,875 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2023-11-19 05:03:54,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:03:54,875 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2023-11-19 05:03:54,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 05:03:54,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:54,877 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:54,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 05:03:54,877 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:03:54,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:54,878 INFO L85 PathProgramCache]: Analyzing trace with hash 140834412, now seen corresponding path program 1 times [2023-11-19 05:03:54,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:54,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783565664] [2023-11-19 05:03:54,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:54,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-19 05:03:55,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:55,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783565664] [2023-11-19 05:03:55,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783565664] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:03:55,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085356543] [2023-11-19 05:03:55,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:55,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:03:55,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:55,019 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:03:55,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 05:03:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:55,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:03:55,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:03:55,154 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 05:03:55,155 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:03:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 05:03:55,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085356543] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:03:55,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1729502117] [2023-11-19 05:03:55,233 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-11-19 05:03:55,233 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:03:55,233 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:03:55,233 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:03:55,234 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:03:58,323 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:03:59,868 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3085#(and (<= |ULTIMATE.start_bubbleSort_#in~array_size#1| 2147483648) (<= 2 |ULTIMATE.start_main_~array_size~0#1|) (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2147483648) (<= 2147483647 |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483648) (<= 1 |ULTIMATE.start_bubbleSort_~i~0#1|) (<= |ULTIMATE.start_bubbleSort_~i~0#1| 2147483647) (= |ULTIMATE.start_bubbleSort_~j~0#1| |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= 2 |ULTIMATE.start_bubbleSort_~array_size#1|) (<= 2 |ULTIMATE.start_bubbleSort_#in~array_size#1|) (<= |ULTIMATE.start_bubbleSort_~j~0#1| 2147483648) (<= (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ (- 4) |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4)))))' at error location [2023-11-19 05:03:59,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 05:03:59,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:03:59,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 11 [2023-11-19 05:03:59,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878975877] [2023-11-19 05:03:59,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:03:59,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 05:03:59,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:59,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 05:03:59,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2023-11-19 05:03:59,871 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:00,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:04:00,045 INFO L93 Difference]: Finished difference Result 109 states and 126 transitions. [2023-11-19 05:04:00,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 05:04:00,045 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2023-11-19 05:04:00,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:04:00,046 INFO L225 Difference]: With dead ends: 109 [2023-11-19 05:04:00,046 INFO L226 Difference]: Without dead ends: 65 [2023-11-19 05:04:00,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 74 SyntacticMatches, 12 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2023-11-19 05:04:00,048 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:04:00,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 113 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:04:00,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-19 05:04:00,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-11-19 05:04:00,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.171875) internal successors, (75), 64 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2023-11-19 05:04:00,057 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 33 [2023-11-19 05:04:00,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:04:00,057 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2023-11-19 05:04:00,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:00,058 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2023-11-19 05:04:00,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 05:04:00,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:04:00,059 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 05:04:00,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 05:04:00,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:04:00,279 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:04:00,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:04:00,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1299521933, now seen corresponding path program 2 times [2023-11-19 05:04:00,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:04:00,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484667973] [2023-11-19 05:04:00,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:04:00,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:04:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:04:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 05:04:00,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:04:00,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484667973] [2023-11-19 05:04:00,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484667973] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:04:00,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554742687] [2023-11-19 05:04:00,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 05:04:00,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:04:00,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:04:00,396 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:04:00,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 05:04:00,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-19 05:04:00,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 05:04:00,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:04:00,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:04:00,646 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 05:04:00,646 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:04:00,771 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 05:04:00,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554742687] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:04:00,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1097036353] [2023-11-19 05:04:00,775 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-11-19 05:04:00,775 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:04:00,776 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:04:00,776 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:04:00,776 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:04:04,315 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:04:06,046 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3529#(and (<= |ULTIMATE.start_bubbleSort_#in~array_size#1| 2147483648) (<= 2 |ULTIMATE.start_main_~array_size~0#1|) (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2147483648) (<= 2147483647 |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483648) (<= 1 |ULTIMATE.start_bubbleSort_~i~0#1|) (<= |ULTIMATE.start_bubbleSort_~i~0#1| 2147483647) (= |ULTIMATE.start_bubbleSort_~j~0#1| |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= 2 |ULTIMATE.start_bubbleSort_~array_size#1|) (<= 2 |ULTIMATE.start_bubbleSort_#in~array_size#1|) (<= |ULTIMATE.start_bubbleSort_~j~0#1| 2147483648) (<= (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ (- 4) |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4)))))' at error location [2023-11-19 05:04:06,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 05:04:06,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:04:06,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 17 [2023-11-19 05:04:06,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230148759] [2023-11-19 05:04:06,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:04:06,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-19 05:04:06,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:04:06,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-19 05:04:06,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2023-11-19 05:04:06,049 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand has 18 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:06,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:04:06,976 INFO L93 Difference]: Finished difference Result 162 states and 191 transitions. [2023-11-19 05:04:06,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-19 05:04:06,977 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 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 35 [2023-11-19 05:04:06,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:04:06,982 INFO L225 Difference]: With dead ends: 162 [2023-11-19 05:04:06,982 INFO L226 Difference]: Without dead ends: 161 [2023-11-19 05:04:06,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 78 SyntacticMatches, 7 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=479, Invalid=1971, Unknown=0, NotChecked=0, Total=2450 [2023-11-19 05:04:06,984 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 569 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:04:06,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 60 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:04:06,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-19 05:04:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 110. [2023-11-19 05:04:07,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.1743119266055047) internal successors, (128), 109 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:07,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2023-11-19 05:04:07,003 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 35 [2023-11-19 05:04:07,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:04:07,004 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2023-11-19 05:04:07,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2023-11-19 05:04:07,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 05:04:07,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:04:07,007 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:04:07,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 05:04:07,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:04:07,230 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-19 05:04:07,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:04:07,230 INFO L85 PathProgramCache]: Analyzing trace with hash 218269924, now seen corresponding path program 2 times [2023-11-19 05:04:07,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:04:07,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108418743] [2023-11-19 05:04:07,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:04:07,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:04:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:04:07,430 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-19 05:04:07,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:04:07,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108418743] [2023-11-19 05:04:07,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108418743] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:04:07,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718012370] [2023-11-19 05:04:07,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 05:04:07,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:04:07,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:04:07,433 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:04:07,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 05:04:07,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-19 05:04:07,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 05:04:07,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 05:04:07,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:04:07,659 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 36 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-19 05:04:07,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:04:07,801 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 36 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-19 05:04:07,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718012370] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:04:07,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [694916702] [2023-11-19 05:04:07,804 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-11-19 05:04:07,804 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:04:07,804 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:04:07,804 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:04:07,805 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:04:10,040 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:04:11,966 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4252#(and (<= |ULTIMATE.start_bubbleSort_#in~array_size#1| 2147483648) (<= 2 |ULTIMATE.start_main_~array_size~0#1|) (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2147483648) (<= 2147483647 |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483648) (<= 1 |ULTIMATE.start_bubbleSort_~i~0#1|) (<= |ULTIMATE.start_bubbleSort_~i~0#1| 2147483647) (= |ULTIMATE.start_bubbleSort_~j~0#1| |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= 2 |ULTIMATE.start_bubbleSort_~array_size#1|) (<= 2 |ULTIMATE.start_bubbleSort_#in~array_size#1|) (<= |ULTIMATE.start_bubbleSort_~j~0#1| 2147483648) (<= (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ (- 4) |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4)))))' at error location [2023-11-19 05:04:11,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-19 05:04:11,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:04:11,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 19 [2023-11-19 05:04:11,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141022527] [2023-11-19 05:04:11,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 05:04:11,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-19 05:04:11,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:04:11,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-19 05:04:11,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2023-11-19 05:04:11,969 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:12,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:04:12,643 INFO L93 Difference]: Finished difference Result 195 states and 228 transitions. [2023-11-19 05:04:12,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 05:04:12,644 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 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 57 [2023-11-19 05:04:12,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:04:12,644 INFO L225 Difference]: With dead ends: 195 [2023-11-19 05:04:12,644 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:04:12,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 140 SyntacticMatches, 9 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=289, Invalid=1967, Unknown=0, NotChecked=0, Total=2256 [2023-11-19 05:04:12,647 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 265 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:04:12,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 72 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:04:12,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:04:12,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:04:12,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:12,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:04:12,649 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2023-11-19 05:04:12,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:04:12,650 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:04:12,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:12,650 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:04:12,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:04:12,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2023-11-19 05:04:12,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2023-11-19 05:04:12,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2023-11-19 05:04:12,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2023-11-19 05:04:12,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2023-11-19 05:04:12,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2023-11-19 05:04:12,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2023-11-19 05:04:12,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2023-11-19 05:04:12,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2023-11-19 05:04:12,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2023-11-19 05:04:12,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2023-11-19 05:04:12,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2023-11-19 05:04:12,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2023-11-19 05:04:12,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2023-11-19 05:04:12,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 05:04:12,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dc1e8e-0f4b-4727-bcf8-72ca9ede5105/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:04:12,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.