./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-crafted/bAnd5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/bAnd5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5 --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 d475be4701a825f0568ebf884900dce77e1216a215283bc51d05a41cc9a8ddb5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:33:53,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:33:53,232 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-21 19:33:53,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:33:53,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:33:53,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:33:53,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:33:53,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:33:53,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:33:53,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:33:53,294 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:33:53,295 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:33:53,296 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:33:53,297 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:33:53,298 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:33:53,298 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:33:53,299 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:33:53,299 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:33:53,300 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:33:53,300 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:33:53,300 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:33:53,301 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:33:53,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:33:53,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:33:53,303 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:33:53,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:33:53,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:33:53,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:33:53,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:33:53,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:33:53,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:33:53,306 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 19:33:53,306 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:33:53,307 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:33:53,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:33:53,307 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:33:53,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:33:53,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:33:53,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:33:53,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:33:53,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:33:53,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:33:53,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:33:53,310 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:33:53,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:33:53,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:33:53,311 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:33:53,311 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:33:53,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:33:53,312 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_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d475be4701a825f0568ebf884900dce77e1216a215283bc51d05a41cc9a8ddb5 [2023-11-21 19:33:53,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:33:53,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:33:53,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:33:53,612 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:33:53,613 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:33:53,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/array-crafted/bAnd5.i [2023-11-21 19:33:56,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:33:57,067 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:33:57,067 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/sv-benchmarks/c/array-crafted/bAnd5.i [2023-11-21 19:33:57,075 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/data/24da8db4f/f3bf1c951816449cba5c6b2a267607d9/FLAGe53c7fcd4 [2023-11-21 19:33:57,091 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/data/24da8db4f/f3bf1c951816449cba5c6b2a267607d9 [2023-11-21 19:33:57,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:33:57,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:33:57,112 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:33:57,112 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:33:57,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:33:57,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eacf5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57, skipping insertion in model container [2023-11-21 19:33:57,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,152 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:33:57,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:33:57,376 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:33:57,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:33:57,412 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:33:57,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57 WrapperNode [2023-11-21 19:33:57,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:33:57,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:33:57,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:33:57,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:33:57,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,460 INFO L138 Inliner]: procedures = 16, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2023-11-21 19:33:57,464 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:33:57,465 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:33:57,465 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:33:57,465 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:33:57,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:33:57,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:33:57,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:33:57,496 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:33:57,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (1/1) ... [2023-11-21 19:33:57,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:33:57,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:33:57,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:33:57,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:33:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:33:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:33:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:33:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:33:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure bAnd [2023-11-21 19:33:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure bAnd [2023-11-21 19:33:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:33:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:33:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:33:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:33:57,649 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:33:57,651 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:33:57,901 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:33:58,022 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:33:58,023 INFO L308 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-21 19:33:58,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:33:58 BoogieIcfgContainer [2023-11-21 19:33:58,025 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:33:58,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:33:58,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:33:58,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:33:58,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:33:57" (1/3) ... [2023-11-21 19:33:58,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a932271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:33:58, skipping insertion in model container [2023-11-21 19:33:58,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:33:57" (2/3) ... [2023-11-21 19:33:58,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a932271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:33:58, skipping insertion in model container [2023-11-21 19:33:58,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:33:58" (3/3) ... [2023-11-21 19:33:58,035 INFO L112 eAbstractionObserver]: Analyzing ICFG bAnd5.i [2023-11-21 19:33:58,054 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:33:58,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-21 19:33:58,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:33:58,113 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;@780b7e33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:33:58,114 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-21 19:33:58,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 35 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 19:33:58,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 19:33:58,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:33:58,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 19:33:58,127 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 19:33:58,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:33:58,133 INFO L85 PathProgramCache]: Analyzing trace with hash 4627201, now seen corresponding path program 1 times [2023-11-21 19:33:58,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:33:58,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673346821] [2023-11-21 19:33:58,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:33:58,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:33:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:33:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:33:58,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:33:58,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673346821] [2023-11-21 19:33:58,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673346821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:33:58,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:33:58,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:33:58,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293193968] [2023-11-21 19:33:58,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:33:58,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:33:58,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:33:58,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:33:58,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:33:58,497 INFO L87 Difference]: Start difference. First operand has 40 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 35 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2023-11-21 19:33:58,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:33:58,615 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2023-11-21 19:33:58,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:33:58,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 [2023-11-21 19:33:58,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:33:58,630 INFO L225 Difference]: With dead ends: 61 [2023-11-21 19:33:58,630 INFO L226 Difference]: Without dead ends: 40 [2023-11-21 19:33:58,632 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 [2023-11-21 19:33:58,636 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:33:58,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 103 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:33:58,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-21 19:33:58,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-21 19:33:58,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 36 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:33:58,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2023-11-21 19:33:58,679 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 4 [2023-11-21 19:33:58,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:33:58,680 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2023-11-21 19:33:58,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2023-11-21 19:33:58,680 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-11-21 19:33:58,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 19:33:58,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:33:58,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:33:58,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:33:58,683 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 19:33:58,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:33:58,684 INFO L85 PathProgramCache]: Analyzing trace with hash 416549716, now seen corresponding path program 1 times [2023-11-21 19:33:58,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:33:58,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393478777] [2023-11-21 19:33:58,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:33:58,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:33:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:33:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:33:58,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:33:58,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393478777] [2023-11-21 19:33:58,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393478777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:33:58,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:33:58,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:33:58,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295612285] [2023-11-21 19:33:58,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:33:58,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:33:58,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:33:58,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:33:58,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:33:58,859 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:33:58,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:33:58,914 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2023-11-21 19:33:58,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:33:58,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-21 19:33:58,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:33:58,919 INFO L225 Difference]: With dead ends: 70 [2023-11-21 19:33:58,919 INFO L226 Difference]: Without dead ends: 40 [2023-11-21 19:33:58,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:33:58,928 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 2 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:33:58,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 58 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:33:58,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-21 19:33:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-21 19:33:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 24 states have (on average 1.625) internal successors, (39), 36 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:33:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2023-11-21 19:33:58,952 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 7 [2023-11-21 19:33:58,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:33:58,952 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2023-11-21 19:33:58,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:33:58,953 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2023-11-21 19:33:58,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 19:33:58,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:33:58,953 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-21 19:33:58,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:33:58,954 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 19:33:58,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:33:58,955 INFO L85 PathProgramCache]: Analyzing trace with hash 410074151, now seen corresponding path program 1 times [2023-11-21 19:33:58,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:33:58,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759072737] [2023-11-21 19:33:58,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:33:58,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:33:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:33:59,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:33:59,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:33:59,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759072737] [2023-11-21 19:33:59,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759072737] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:33:59,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134242128] [2023-11-21 19:33:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:33:59,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:33:59,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:33:59,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:33:59,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:33:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:33:59,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 19:33:59,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:33:59,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:33:59,347 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:33:59,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134242128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:33:59,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 19:33:59,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-21 19:33:59,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900730833] [2023-11-21 19:33:59,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:33:59,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:33:59,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:33:59,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:33:59,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 19:33:59,363 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2023-11-21 19:33:59,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:33:59,444 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2023-11-21 19:33:59,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:33:59,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 [2023-11-21 19:33:59,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:33:59,450 INFO L225 Difference]: With dead ends: 40 [2023-11-21 19:33:59,450 INFO L226 Difference]: Without dead ends: 39 [2023-11-21 19:33:59,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-21 19:33:59,454 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:33:59,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 153 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:33:59,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-21 19:33:59,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-21 19:33:59,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 35 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:33:59,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2023-11-21 19:33:59,470 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 7 [2023-11-21 19:33:59,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:33:59,471 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2023-11-21 19:33:59,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2023-11-21 19:33:59,472 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2023-11-21 19:33:59,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 19:33:59,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:33:59,473 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-21 19:33:59,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-21 19:33:59,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:33:59,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 19:33:59,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:33:59,688 INFO L85 PathProgramCache]: Analyzing trace with hash -172603126, now seen corresponding path program 1 times [2023-11-21 19:33:59,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:33:59,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108458575] [2023-11-21 19:33:59,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:33:59,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:33:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:33:59,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:33:59,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:33:59,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108458575] [2023-11-21 19:33:59,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108458575] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:33:59,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869969796] [2023-11-21 19:33:59,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:33:59,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:33:59,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:33:59,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:33:59,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 19:33:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:33:59,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 19:33:59,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:33:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:33:59,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:33:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:33:59,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869969796] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:33:59,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1628843707] [2023-11-21 19:33:59,989 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2023-11-21 19:33:59,989 INFO L166 IcfgInterpreter]: Building call graph [2023-11-21 19:33:59,993 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-21 19:33:59,998 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-21 19:33:59,999 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-21 19:34:01,087 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-21 19:34:01,337 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '483#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~i~1#1|) (<= ~N~0 2147483647) (<= 2147483647 |ULTIMATE.start_main_#t~post6#1|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 2 ~N~0))' at error location [2023-11-21 19:34:01,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-21 19:34:01,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:34:01,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-21 19:34:01,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489646600] [2023-11-21 19:34:01,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:34:01,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 19:34:01,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:34:01,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 19:34:01,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-11-21 19:34:01,344 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:34:01,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:01,474 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2023-11-21 19:34:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 19:34:01,475 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-21 19:34:01,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:01,481 INFO L225 Difference]: With dead ends: 49 [2023-11-21 19:34:01,481 INFO L226 Difference]: Without dead ends: 48 [2023-11-21 19:34:01,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2023-11-21 19:34:01,484 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 10 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:34:01,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 157 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:34:01,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-21 19:34:01,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-21 19:34:01,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 44 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:34:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2023-11-21 19:34:01,508 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 8 [2023-11-21 19:34:01,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:01,509 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2023-11-21 19:34:01,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:34:01,509 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2023-11-21 19:34:01,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 19:34:01,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:01,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:01,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 19:34:01,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:01,711 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 19:34:01,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:01,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1638600814, now seen corresponding path program 1 times [2023-11-21 19:34:01,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:01,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489889819] [2023-11-21 19:34:01,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:01,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:01,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 19:34:01,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:34:01,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489889819] [2023-11-21 19:34:01,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489889819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:34:01,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:34:01,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:34:01,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124559522] [2023-11-21 19:34:01,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:34:01,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:34:01,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:34:01,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:34:01,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:34:01,822 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:34:01,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:01,866 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2023-11-21 19:34:01,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:34:01,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-21 19:34:01,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:01,874 INFO L225 Difference]: With dead ends: 54 [2023-11-21 19:34:01,875 INFO L226 Difference]: Without dead ends: 52 [2023-11-21 19:34:01,875 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 [2023-11-21 19:34:01,876 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 4 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:34:01,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 94 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:34:01,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-21 19:34:01,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2023-11-21 19:34:01,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 36 states have (on average 1.5) internal successors, (54), 47 states have internal predecessors, (54), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:34:01,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2023-11-21 19:34:01,898 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 10 [2023-11-21 19:34:01,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:01,899 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2023-11-21 19:34:01,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:34:01,899 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2023-11-21 19:34:01,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 19:34:01,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:01,900 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:01,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 19:34:01,900 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 19:34:01,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:01,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1041377508, now seen corresponding path program 1 times [2023-11-21 19:34:01,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:01,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76551870] [2023-11-21 19:34:01,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:01,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:02,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:34:02,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:34:02,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76551870] [2023-11-21 19:34:02,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76551870] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:34:02,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156515690] [2023-11-21 19:34:02,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:02,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:02,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:34:02,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:34:02,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 19:34:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:02,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 19:34:02,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:34:02,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:34:02,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:34:02,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:34:02,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156515690] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:34:02,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [810428296] [2023-11-21 19:34:02,288 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2023-11-21 19:34:02,288 INFO L166 IcfgInterpreter]: Building call graph [2023-11-21 19:34:02,289 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-21 19:34:02,289 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-21 19:34:02,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-21 19:34:02,938 INFO L197 IcfgInterpreter]: Interpreting procedure bAnd with input of size 14 for LOIs [2023-11-21 19:34:03,663 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-21 19:34:04,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [810428296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:34:04,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:34:04,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 5, 5] total 19 [2023-11-21 19:34:04,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233008244] [2023-11-21 19:34:04,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:34:04,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 19:34:04,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:34:04,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 19:34:04,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2023-11-21 19:34:04,138 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:34:04,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:04,424 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2023-11-21 19:34:04,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 19:34:04,425 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-21 19:34:04,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:04,427 INFO L225 Difference]: With dead ends: 51 [2023-11-21 19:34:04,428 INFO L226 Difference]: Without dead ends: 40 [2023-11-21 19:34:04,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2023-11-21 19:34:04,430 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 21 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:34:04,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 51 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:34:04,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-21 19:34:04,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 26. [2023-11-21 19:34:04,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:34:04,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2023-11-21 19:34:04,442 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 13 [2023-11-21 19:34:04,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:04,442 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2023-11-21 19:34:04,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:34:04,443 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2023-11-21 19:34:04,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 19:34:04,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:04,444 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:04,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 19:34:04,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:04,668 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 19:34:04,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:04,668 INFO L85 PathProgramCache]: Analyzing trace with hash 77251315, now seen corresponding path program 1 times [2023-11-21 19:34:04,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:04,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185011666] [2023-11-21 19:34:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:04,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:04,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:34:04,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:34:04,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185011666] [2023-11-21 19:34:04,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185011666] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:34:04,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196439838] [2023-11-21 19:34:04,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:04,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:04,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:34:04,733 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:34:04,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 19:34:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:04,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 19:34:04,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:34:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 19:34:04,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:34:04,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196439838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:34:04,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 19:34:04,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-21 19:34:04,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633696362] [2023-11-21 19:34:04,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:34:04,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:34:04,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:34:04,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:34:04,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:34:04,830 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 19:34:04,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:04,860 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2023-11-21 19:34:04,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:34:04,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-21 19:34:04,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:04,862 INFO L225 Difference]: With dead ends: 36 [2023-11-21 19:34:04,862 INFO L226 Difference]: Without dead ends: 35 [2023-11-21 19:34:04,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:34:04,863 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:34:04,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 35 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:34:04,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-21 19:34:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2023-11-21 19:34:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:34:04,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-11-21 19:34:04,884 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 20 [2023-11-21 19:34:04,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:04,884 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-11-21 19:34:04,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 19:34:04,885 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-11-21 19:34:04,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 19:34:04,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:04,887 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:04,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 19:34:05,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:05,107 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 19:34:05,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:05,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1900176426, now seen corresponding path program 1 times [2023-11-21 19:34:05,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:05,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122743068] [2023-11-21 19:34:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:05,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:05,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:34:05,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:34:05,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122743068] [2023-11-21 19:34:05,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122743068] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:34:05,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476012370] [2023-11-21 19:34:05,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:05,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:05,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:34:05,185 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:34:05,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 19:34:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:05,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 19:34:05,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:34:05,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 19:34:05,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:34:05,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476012370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:34:05,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 19:34:05,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-21 19:34:05,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909295427] [2023-11-21 19:34:05,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:34:05,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:34:05,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:34:05,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:34:05,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:34:05,275 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 19:34:05,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:05,303 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2023-11-21 19:34:05,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:34:05,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-21 19:34:05,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:05,304 INFO L225 Difference]: With dead ends: 36 [2023-11-21 19:34:05,304 INFO L226 Difference]: Without dead ends: 35 [2023-11-21 19:34:05,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:34:05,305 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 36 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 [2023-11-21 19:34:05,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 36 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:34:05,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-21 19:34:05,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2023-11-21 19:34:05,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.25) internal successors, (30), 27 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:34:05,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2023-11-21 19:34:05,310 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 21 [2023-11-21 19:34:05,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:05,311 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2023-11-21 19:34:05,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 19:34:05,311 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2023-11-21 19:34:05,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 19:34:05,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:05,312 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:05,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 19:34:05,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:05,531 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 19:34:05,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:05,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1224074597, now seen corresponding path program 1 times [2023-11-21 19:34:05,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:05,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696853998] [2023-11-21 19:34:05,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:05,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:05,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:34:05,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:34:05,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696853998] [2023-11-21 19:34:05,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696853998] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:34:05,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184583373] [2023-11-21 19:34:05,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:05,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:05,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:34:05,595 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:34:05,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 19:34:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:05,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 19:34:05,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:34:05,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 19:34:05,714 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:34:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 19:34:05,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184583373] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:34:05,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [721259229] [2023-11-21 19:34:05,760 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2023-11-21 19:34:05,761 INFO L166 IcfgInterpreter]: Building call graph [2023-11-21 19:34:05,761 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-21 19:34:05,761 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-21 19:34:05,761 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-21 19:34:06,266 INFO L197 IcfgInterpreter]: Interpreting procedure bAnd with input of size 14 for LOIs [2023-11-21 19:34:06,273 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-21 19:34:06,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [721259229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:34:06,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:34:06,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 5] total 18 [2023-11-21 19:34:06,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26815272] [2023-11-21 19:34:06,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:34:06,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 19:34:06,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:34:06,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 19:34:06,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-11-21 19:34:06,572 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:34:06,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:06,803 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2023-11-21 19:34:06,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 19:34:06,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2023-11-21 19:34:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:06,805 INFO L225 Difference]: With dead ends: 56 [2023-11-21 19:34:06,805 INFO L226 Difference]: Without dead ends: 32 [2023-11-21 19:34:06,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2023-11-21 19:34:06,808 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:34:06,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 55 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:34:06,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-21 19:34:06,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-21 19:34:06,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:34:06,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2023-11-21 19:34:06,816 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 22 [2023-11-21 19:34:06,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:06,816 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2023-11-21 19:34:06,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:34:06,817 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2023-11-21 19:34:06,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 19:34:06,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:06,819 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:06,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 19:34:07,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:07,040 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 19:34:07,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:07,041 INFO L85 PathProgramCache]: Analyzing trace with hash -30233889, now seen corresponding path program 1 times [2023-11-21 19:34:07,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:07,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784747323] [2023-11-21 19:34:07,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:07,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:07,137 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 19:34:07,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:34:07,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784747323] [2023-11-21 19:34:07,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784747323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:34:07,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:34:07,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:34:07,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563860464] [2023-11-21 19:34:07,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:34:07,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:34:07,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:34:07,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:34:07,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:34:07,140 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 19:34:07,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:07,178 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2023-11-21 19:34:07,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:34:07,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-11-21 19:34:07,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:07,180 INFO L225 Difference]: With dead ends: 36 [2023-11-21 19:34:07,180 INFO L226 Difference]: Without dead ends: 34 [2023-11-21 19:34:07,180 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 [2023-11-21 19:34:07,181 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:34:07,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 50 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:34:07,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-21 19:34:07,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-21 19:34:07,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 30 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:34:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2023-11-21 19:34:07,192 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 28 [2023-11-21 19:34:07,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:07,195 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2023-11-21 19:34:07,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 19:34:07,196 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2023-11-21 19:34:07,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 19:34:07,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:07,197 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:07,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 19:34:07,198 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 19:34:07,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:07,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1413961388, now seen corresponding path program 1 times [2023-11-21 19:34:07,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:07,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285199102] [2023-11-21 19:34:07,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:07,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 19:34:07,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:34:07,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285199102] [2023-11-21 19:34:07,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285199102] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:34:07,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379319245] [2023-11-21 19:34:07,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:07,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:07,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:34:07,292 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:34:07,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 19:34:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:07,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 19:34:07,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:34:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 19:34:07,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:34:07,464 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 19:34:07,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379319245] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:34:07,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1536620612] [2023-11-21 19:34:07,467 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-11-21 19:34:07,468 INFO L166 IcfgInterpreter]: Building call graph [2023-11-21 19:34:07,468 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-21 19:34:07,468 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-21 19:34:07,468 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-21 19:34:10,576 INFO L197 IcfgInterpreter]: Interpreting procedure bAnd with input of size 14 for LOIs [2023-11-21 19:34:11,087 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-21 19:34:12,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1536620612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:34:12,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:34:12,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [4, 5, 5] total 27 [2023-11-21 19:34:12,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672729747] [2023-11-21 19:34:12,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:34:12,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-21 19:34:12,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:34:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-21 19:34:12,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=619, Unknown=5, NotChecked=0, Total=702 [2023-11-21 19:34:12,895 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 18 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:34:13,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:13,497 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2023-11-21 19:34:13,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-21 19:34:13,497 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-11-21 19:34:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:13,498 INFO L225 Difference]: With dead ends: 34 [2023-11-21 19:34:13,498 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 19:34:13,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=83, Invalid=668, Unknown=5, NotChecked=0, Total=756 [2023-11-21 19:34:13,500 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 5 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 19:34:13,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 269 Invalid, 9 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 19:34:13,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 19:34:13,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 19:34:13,501 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) [2023-11-21 19:34:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 19:34:13,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2023-11-21 19:34:13,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:13,502 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 19:34:13,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 19:34:13,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 19:34:13,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 19:34:13,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2023-11-21 19:34:13,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2023-11-21 19:34:13,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2023-11-21 19:34:13,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2023-11-21 19:34:13,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2023-11-21 19:34:13,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2023-11-21 19:34:13,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2023-11-21 19:34:13,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2023-11-21 19:34:13,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2023-11-21 19:34:13,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2023-11-21 19:34:13,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2023-11-21 19:34:13,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2023-11-21 19:34:13,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 19:34:13,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:34:13,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 19:34:14,108 INFO L899 garLoopResultBuilder]: For program point bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-21 19:34:14,108 INFO L899 garLoopResultBuilder]: For program point bAndEXIT(lines 19 28) no Hoare annotation was computed. [2023-11-21 19:34:14,109 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 19 28) the Hoare annotation is: true [2023-11-21 19:34:14,109 INFO L899 garLoopResultBuilder]: For program point bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-21 19:34:14,109 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2023-11-21 19:34:14,109 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2023-11-21 19:34:14,109 INFO L895 garLoopResultBuilder]: At program point L24-5(lines 24 26) the Hoare annotation is: (or (not (= |bAnd_#in~x.offset| 0)) (< 2147483647 ~N~0) (and (let ((.cse0 (= bAnd_~x.offset 0))) (or (and (<= bAnd_~i~0 2147483647) .cse0 (<= 2 bAnd_~x.base) (<= 2 bAnd_~i~0)) (and (= bAnd_~i~0 1) .cse0))) (or (< 1 bAnd_~i~0) (and (= bAnd_~res~0 (select (select |#memory_int| bAnd_~x.base) 0)) (= bAnd_~x.base |bAnd_#in~x.base|)))) (< |bAnd_#in~x.base| 2) (< ~N~0 2) (< |#StackHeapBarrier| 1)) [2023-11-21 19:34:14,110 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-21 19:34:14,110 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (and (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_int_56| (Array Int (Array Int Int)))) (let ((.cse0 (select |v_#memory_int_56| |ULTIMATE.start_main_~#x~0#1.base|))) (and (= |#memory_int| (store |v_#memory_int_56| |ULTIMATE.start_main_~#x~0#1.base| (store (store .cse0 0 (select .cse0 4)) 4 |ULTIMATE.start_main_~temp~0#1|))) (= (select .cse0 0) |ULTIMATE.start_main_~temp~0#1|) (let ((.cse1 (+ |ULTIMATE.start_main_~ret~0#1| 4294967296))) (or (exists ((v_bAnd_~res~0_BEFORE_RETURN_4 Int) (v_bAnd_~i~0_BEFORE_RETURN_4 Int)) (and (<= v_bAnd_~i~0_BEFORE_RETURN_4 2147483647) (<= ~N~0 v_bAnd_~i~0_BEFORE_RETURN_4) (let ((.cse2 (mod v_bAnd_~res~0_BEFORE_RETURN_4 4294967296))) (or (= .cse1 .cse2) (= |ULTIMATE.start_main_~ret~0#1| .cse2))))) (exists ((v_bAnd_~res~0_BEFORE_RETURN_3 Int) (v_bAnd_~i~0_BEFORE_RETURN_3 Int)) (and (<= v_bAnd_~i~0_BEFORE_RETURN_3 2147483647) (let ((.cse3 (mod v_bAnd_~res~0_BEFORE_RETURN_3 4294967296))) (or (= .cse3 .cse1) (= .cse3 |ULTIMATE.start_main_~ret~0#1|))) (<= ~N~0 v_bAnd_~i~0_BEFORE_RETURN_3)))))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 2 ~N~0) (<= 0 (+ |ULTIMATE.start_main_~ret~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~0#1| 2147483647)) [2023-11-21 19:34:14,110 INFO L899 garLoopResultBuilder]: For program point L48-1(line 48) no Hoare annotation was computed. [2023-11-21 19:34:14,110 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-21 19:34:14,110 INFO L899 garLoopResultBuilder]: For program point L40-3(line 40) no Hoare annotation was computed. [2023-11-21 19:34:14,110 INFO L899 garLoopResultBuilder]: For program point L40-4(line 40) no Hoare annotation was computed. [2023-11-21 19:34:14,111 INFO L895 garLoopResultBuilder]: At program point L40-5(lines 40 43) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (<= ~N~0 2147483647)) (.cse2 (<= 2 |ULTIMATE.start_main_~#x~0#1.base|)) (.cse3 (= |ULTIMATE.start_main_~#x~0#1.offset| 0)) (.cse4 (<= 2 ~N~0))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_main_~i~1#1| 2147483647) .cse2 .cse3 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse4) (let ((.cse6 (select |#memory_int| 1)) (.cse5 (select |#memory_int| 2))) (and (= (select .cse5 7) 0) .cse0 .cse1 (= 53 (select .cse5 4)) (= |ULTIMATE.start_main_~i~1#1| 0) (= (select .cse5 6) 99) (= 2 (select |#length| 1)) (= 65 (select .cse5 1)) (= 100 (select .cse5 3)) .cse2 .cse3 (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) .cse4 (= (select .cse5 5) 46) (= (select |#valid| 2) 1) (= 8 (select |#length| 2)) (= 110 (select .cse5 2)) (= (select .cse6 0) 48) (= (select .cse6 1) 0) (= 98 (select .cse5 0)))))) [2023-11-21 19:34:14,111 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-21 19:34:14,111 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-21 19:34:14,111 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-21 19:34:14,111 INFO L899 garLoopResultBuilder]: For program point L53-1(line 53) no Hoare annotation was computed. [2023-11-21 19:34:14,112 INFO L895 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: (and (<= 1 |#StackHeapBarrier|) (<= ~N~0 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 2 ~N~0)) [2023-11-21 19:34:14,112 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-21 19:34:14,112 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-21 19:34:14,112 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 59) no Hoare annotation was computed. [2023-11-21 19:34:14,112 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-21 19:34:14,112 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 19:34:14,112 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 33 59) no Hoare annotation was computed. [2023-11-21 19:34:14,113 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-21 19:34:14,113 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (and (<= 1 |#StackHeapBarrier|) (<= ~N~0 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 2 ~N~0)) [2023-11-21 19:34:14,113 INFO L899 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2023-11-21 19:34:14,113 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-11-21 19:34:14,113 INFO L899 garLoopResultBuilder]: For program point L50-2(lines 50 52) no Hoare annotation was computed. [2023-11-21 19:34:14,113 INFO L899 garLoopResultBuilder]: For program point L50-5(line 50) no Hoare annotation was computed. [2023-11-21 19:34:14,113 INFO L899 garLoopResultBuilder]: For program point L50-6(line 50) no Hoare annotation was computed. [2023-11-21 19:34:14,114 INFO L895 garLoopResultBuilder]: At program point L50-7(lines 50 52) the Hoare annotation is: (and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (<= ~N~0 2147483647) (<= 0 |ULTIMATE.start_main_~i~2#1|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 2 ~N~0) (<= 0 (+ |ULTIMATE.start_main_~ret~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~0#1| 2147483647)) [2023-11-21 19:34:14,114 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-21 19:34:14,114 INFO L899 garLoopResultBuilder]: For program point L50-8(lines 50 52) no Hoare annotation was computed. [2023-11-21 19:34:14,114 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 19:34:14,114 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-21 19:34:14,114 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-11-21 19:34:14,115 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2023-11-21 19:34:14,115 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2023-11-21 19:34:14,118 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:14,120 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:34:14,136 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated [2023-11-21 19:34:14,137 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated [2023-11-21 19:34:14,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated [2023-11-21 19:34:14,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated [2023-11-21 19:34:14,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated [2023-11-21 19:34:14,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated [2023-11-21 19:34:14,139 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated [2023-11-21 19:34:14,139 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated [2023-11-21 19:34:14,140 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated [2023-11-21 19:34:14,140 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated [2023-11-21 19:34:14,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated [2023-11-21 19:34:14,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated [2023-11-21 19:34:14,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated [2023-11-21 19:34:14,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated [2023-11-21 19:34:14,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated [2023-11-21 19:34:14,146 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 19:34:14,147 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 19:34:14,147 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 19:34:14,147 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 19:34:14,148 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~x!base][0] could not be translated [2023-11-21 19:34:14,148 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 19:34:14,148 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 19:34:14,148 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 19:34:14,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:34:14 BoogieIcfgContainer [2023-11-21 19:34:14,156 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:34:14,157 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:34:14,157 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:34:14,157 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:34:14,157 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:33:58" (3/4) ... [2023-11-21 19:34:14,160 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 19:34:14,163 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bAnd [2023-11-21 19:34:14,172 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-11-21 19:34:14,173 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-21 19:34:14,173 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 19:34:14,173 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 19:34:14,174 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 19:34:14,291 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/witness.graphml [2023-11-21 19:34:14,291 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/witness.yml [2023-11-21 19:34:14,291 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:34:14,292 INFO L158 Benchmark]: Toolchain (without parser) took 17190.62ms. Allocated memory was 178.3MB in the beginning and 509.6MB in the end (delta: 331.4MB). Free memory was 146.0MB in the beginning and 448.8MB in the end (delta: -302.8MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2023-11-21 19:34:14,292 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:34:14,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.28ms. Allocated memory is still 178.3MB. Free memory was 146.0MB in the beginning and 134.9MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 19:34:14,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.91ms. Allocated memory is still 178.3MB. Free memory was 134.9MB in the beginning and 133.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:34:14,295 INFO L158 Benchmark]: Boogie Preprocessor took 30.12ms. Allocated memory is still 178.3MB. Free memory was 133.4MB in the beginning and 132.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:34:14,295 INFO L158 Benchmark]: RCFGBuilder took 529.57ms. Allocated memory is still 178.3MB. Free memory was 132.1MB in the beginning and 111.8MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 19:34:14,295 INFO L158 Benchmark]: TraceAbstraction took 16128.21ms. Allocated memory was 178.3MB in the beginning and 509.6MB in the end (delta: 331.4MB). Free memory was 111.1MB in the beginning and 454.1MB in the end (delta: -343.0MB). Peak memory consumption was 219.2MB. Max. memory is 16.1GB. [2023-11-21 19:34:14,296 INFO L158 Benchmark]: Witness Printer took 134.98ms. Allocated memory is still 509.6MB. Free memory was 454.1MB in the beginning and 448.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 19:34:14,299 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.28ms. Allocated memory is still 178.3MB. Free memory was 146.0MB in the beginning and 134.9MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.91ms. Allocated memory is still 178.3MB. Free memory was 134.9MB in the beginning and 133.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.12ms. Allocated memory is still 178.3MB. Free memory was 133.4MB in the beginning and 132.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.57ms. Allocated memory is still 178.3MB. Free memory was 132.1MB in the beginning and 111.8MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 16128.21ms. Allocated memory was 178.3MB in the beginning and 509.6MB in the end (delta: 331.4MB). Free memory was 111.1MB in the beginning and 454.1MB in the end (delta: -343.0MB). Peak memory consumption was 219.2MB. Max. memory is 16.1GB. * Witness Printer took 134.98ms. Allocated memory is still 509.6MB. Free memory was 454.1MB in the beginning and 448.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][7] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][5] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[1][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[2][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~x!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~x!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 16.0s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 794 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 548 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 749 IncrementalHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 246 mSDtfsCounter, 749 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 323 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=5, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 21 PreInvPairs, 30 NumberOfFragments, 350 HoareAnnotationTreeSize, 21 FomulaSimplifications, 833 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 273 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 351 ConstructedInterpolants, 0 QuantifiedInterpolants, 653 SizeOfPredicates, 7 NumberOfNonLiveVariables, 782 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 22 InterpolantComputations, 7 PerfectInterpolantSequences, 79/107 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 5.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 47, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 110, TOOLS_POST_TIME: 4.4s, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 126, TOOLS_QUANTIFIERELIM_TIME: 4.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 213, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 21, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 10, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 17, DOMAIN_ISSUBSETEQ_TIME: 0.2s, DOMAIN_ISBOTTOM_APPLICATIONS: 47, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 7, LOOP_SUMMARIZER_CACHE_MISSES: 7, LOOP_SUMMARIZER_OVERALL_TIME: 3.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 17, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.4s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.4s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 802, DAG_COMPRESSION_RETAINED_NODES: 176, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((N <= 2147483647) && (i <= 2147483647)) && (1 <= i)) && (2 <= N)) || (((N <= 2147483647) && (i == 0)) && (2 <= N))) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((((((ret2 <= 2147483647) && (N <= 2147483647)) && (0 <= i)) && (0 <= (ret2 + 2147483648))) && (2 <= N)) && (0 <= (ret + 2147483648))) && (ret <= 2147483647)) RESULT: Ultimate proved your program to be correct! [2023-11-21 19:34:14,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eab3341-cd87-4ac8-bfa6-82a579a589ad/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE