./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91 --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 c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:21:45,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:21:45,342 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-24 23:21:45,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:21:45,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:21:45,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:21:45,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:21:45,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:21:45,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:21:45,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:21:45,412 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:21:45,414 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:21:45,414 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:21:45,416 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:21:45,417 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:21:45,417 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:21:45,418 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:21:45,418 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:21:45,419 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:21:45,419 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:21:45,420 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:21:45,420 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:21:45,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:21:45,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:21:45,422 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:21:45,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:21:45,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:21:45,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:21:45,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:21:45,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:21:45,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:21:45,427 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:21:45,427 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:21:45,427 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:21:45,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:21:45,443 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:21:45,443 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:21:45,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:21:45,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:21:45,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:21:45,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:21:45,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:21:45,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:21:45,445 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:21:45,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:21:45,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:21:45,447 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:21:45,447 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:21:45,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:21:45,447 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_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a [2023-11-24 23:21:45,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:21:45,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:21:45,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:21:45,842 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:21:45,843 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:21:45,844 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2023-11-24 23:21:48,949 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:21:49,184 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:21:49,185 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2023-11-24 23:21:49,194 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/data/bd7d99b1d/7897d25d2e8142709c7dee3bb3365557/FLAG175bdaa00 [2023-11-24 23:21:49,209 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/data/bd7d99b1d/7897d25d2e8142709c7dee3bb3365557 [2023-11-24 23:21:49,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:21:49,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:21:49,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:21:49,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:21:49,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:21:49,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24fe0273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49, skipping insertion in model container [2023-11-24 23:21:49,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,272 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:21:49,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:21:49,512 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:21:49,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:21:49,570 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:21:49,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49 WrapperNode [2023-11-24 23:21:49,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:21:49,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:21:49,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:21:49,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:21:49,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,609 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2023-11-24 23:21:49,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:21:49,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:21:49,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:21:49,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:21:49,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:21:49,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:21:49,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:21:49,644 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:21:49,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:21:49,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:21:49,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:21:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:21:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:21:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-11-24 23:21:49,772 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-11-24 23:21:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:21:49,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:21:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2023-11-24 23:21:49,773 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2023-11-24 23:21:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:21:49,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:21:49,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:21:49,862 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:21:49,863 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:21:50,319 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:21:50,570 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:21:50,570 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:21:50,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:21:50 BoogieIcfgContainer [2023-11-24 23:21:50,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:21:50,578 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:21:50,579 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:21:50,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:21:50,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:21:49" (1/3) ... [2023-11-24 23:21:50,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a449963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:21:50, skipping insertion in model container [2023-11-24 23:21:50,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49" (2/3) ... [2023-11-24 23:21:50,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a449963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:21:50, skipping insertion in model container [2023-11-24 23:21:50,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:21:50" (3/3) ... [2023-11-24 23:21:50,586 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2023-11-24 23:21:50,601 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:21:50,602 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-24 23:21:50,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:21:50,683 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;@3703a611, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:21:50,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-24 23:21:50,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 43 states have (on average 1.6511627906976745) internal successors, (71), 59 states have internal predecessors, (71), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:21:50,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:21:50,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:50,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:50,697 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:50,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:50,704 INFO L85 PathProgramCache]: Analyzing trace with hash -856435355, now seen corresponding path program 1 times [2023-11-24 23:21:50,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:50,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727008320] [2023-11-24 23:21:50,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:50,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:21:50,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:50,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727008320] [2023-11-24 23:21:50,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727008320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:50,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:50,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:21:50,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990641080] [2023-11-24 23:21:50,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:50,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:21:50,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:50,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:21:50,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:21:50,971 INFO L87 Difference]: Start difference. First operand has 72 states, 43 states have (on average 1.6511627906976745) internal successors, (71), 59 states have internal predecessors, (71), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (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) [2023-11-24 23:21:51,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:51,089 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2023-11-24 23:21:51,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:21:51,094 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (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 8 [2023-11-24 23:21:51,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:51,106 INFO L225 Difference]: With dead ends: 138 [2023-11-24 23:21:51,106 INFO L226 Difference]: Without dead ends: 64 [2023-11-24 23:21:51,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:21:51,118 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:51,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:51,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-24 23:21:51,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-11-24 23:21:51,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 41 states have (on average 1.5365853658536586) internal successors, (63), 53 states have internal predecessors, (63), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:21:51,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2023-11-24 23:21:51,172 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 8 [2023-11-24 23:21:51,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:51,173 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2023-11-24 23:21:51,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (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) [2023-11-24 23:21:51,173 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2023-11-24 23:21:51,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:21:51,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:51,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:51,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:21:51,176 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:51,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:51,177 INFO L85 PathProgramCache]: Analyzing trace with hash -857605412, now seen corresponding path program 1 times [2023-11-24 23:21:51,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:51,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890810503] [2023-11-24 23:21:51,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:51,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:21:51,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:51,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890810503] [2023-11-24 23:21:51,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890810503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:51,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:51,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:21:51,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706134690] [2023-11-24 23:21:51,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:51,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:21:51,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:51,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:21:51,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:21:51,369 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-24 23:21:51,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:51,552 INFO L93 Difference]: Finished difference Result 164 states and 206 transitions. [2023-11-24 23:21:51,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:21:51,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 8 [2023-11-24 23:21:51,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:51,556 INFO L225 Difference]: With dead ends: 164 [2023-11-24 23:21:51,557 INFO L226 Difference]: Without dead ends: 102 [2023-11-24 23:21:51,558 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 [2023-11-24 23:21:51,560 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 55 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:51,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 167 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:51,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-24 23:21:51,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 94. [2023-11-24 23:21:51,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 70 states have (on average 1.5) internal successors, (105), 82 states have internal predecessors, (105), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:21:51,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 120 transitions. [2023-11-24 23:21:51,577 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 120 transitions. Word has length 8 [2023-11-24 23:21:51,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:51,578 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 120 transitions. [2023-11-24 23:21:51,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-24 23:21:51,578 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 120 transitions. [2023-11-24 23:21:51,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:21:51,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:51,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:51,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:21:51,580 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:51,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:51,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1133258099, now seen corresponding path program 1 times [2023-11-24 23:21:51,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:51,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248054522] [2023-11-24 23:21:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:51,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:21:51,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:51,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248054522] [2023-11-24 23:21:51,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248054522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:51,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:51,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:21:51,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345726985] [2023-11-24 23:21:51,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:51,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:21:51,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:51,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:21:51,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:21:51,699 INFO L87 Difference]: Start difference. First operand 94 states and 120 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-24 23:21:51,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:51,906 INFO L93 Difference]: Finished difference Result 177 states and 218 transitions. [2023-11-24 23:21:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:21:51,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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 12 [2023-11-24 23:21:51,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:51,909 INFO L225 Difference]: With dead ends: 177 [2023-11-24 23:21:51,909 INFO L226 Difference]: Without dead ends: 113 [2023-11-24 23:21:51,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:21:51,912 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 82 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:51,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 224 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:21:51,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-24 23:21:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 100. [2023-11-24 23:21:51,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 88 states have internal predecessors, (111), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:21:51,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 126 transitions. [2023-11-24 23:21:51,933 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 126 transitions. Word has length 12 [2023-11-24 23:21:51,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:51,933 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 126 transitions. [2023-11-24 23:21:51,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-24 23:21:51,934 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 126 transitions. [2023-11-24 23:21:51,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:21:51,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:51,935 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:51,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:21:51,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:51,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:51,937 INFO L85 PathProgramCache]: Analyzing trace with hash -821537628, now seen corresponding path program 1 times [2023-11-24 23:21:51,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:51,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381869100] [2023-11-24 23:21:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:51,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:51,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:21:51,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:51,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381869100] [2023-11-24 23:21:51,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381869100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:51,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:51,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:21:51,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721607324] [2023-11-24 23:21:51,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:51,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:21:51,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:51,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:21:51,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:21:51,989 INFO L87 Difference]: Start difference. First operand 100 states and 126 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:21:52,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:52,056 INFO L93 Difference]: Finished difference Result 104 states and 131 transitions. [2023-11-24 23:21:52,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:21:52,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-24 23:21:52,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:52,058 INFO L225 Difference]: With dead ends: 104 [2023-11-24 23:21:52,059 INFO L226 Difference]: Without dead ends: 103 [2023-11-24 23:21:52,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:21:52,061 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 3 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:52,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 118 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:52,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-24 23:21:52,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2023-11-24 23:21:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 75 states have (on average 1.44) internal successors, (108), 86 states have internal predecessors, (108), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:21:52,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 123 transitions. [2023-11-24 23:21:52,074 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 123 transitions. Word has length 14 [2023-11-24 23:21:52,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:52,075 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 123 transitions. [2023-11-24 23:21:52,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:21:52,075 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 123 transitions. [2023-11-24 23:21:52,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:21:52,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:52,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:52,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:21:52,077 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:52,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:52,078 INFO L85 PathProgramCache]: Analyzing trace with hash 771262813, now seen corresponding path program 1 times [2023-11-24 23:21:52,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:52,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381109669] [2023-11-24 23:21:52,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:52,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:21:52,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:52,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381109669] [2023-11-24 23:21:52,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381109669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:52,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:52,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:21:52,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041595851] [2023-11-24 23:21:52,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:52,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:21:52,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:52,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:21:52,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:21:52,168 INFO L87 Difference]: Start difference. First operand 98 states and 123 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-11-24 23:21:52,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:52,342 INFO L93 Difference]: Finished difference Result 112 states and 134 transitions. [2023-11-24 23:21:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:21:52,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 [2023-11-24 23:21:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:52,344 INFO L225 Difference]: With dead ends: 112 [2023-11-24 23:21:52,344 INFO L226 Difference]: Without dead ends: 110 [2023-11-24 23:21:52,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:21:52,347 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 60 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:52,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 223 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:52,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-24 23:21:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 98. [2023-11-24 23:21:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 75 states have (on average 1.4266666666666667) internal successors, (107), 86 states have internal predecessors, (107), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:21:52,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 122 transitions. [2023-11-24 23:21:52,361 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 122 transitions. Word has length 13 [2023-11-24 23:21:52,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:52,361 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 122 transitions. [2023-11-24 23:21:52,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-11-24 23:21:52,362 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 122 transitions. [2023-11-24 23:21:52,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:21:52,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:52,363 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:52,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:21:52,364 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:52,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:52,365 INFO L85 PathProgramCache]: Analyzing trace with hash 330764721, now seen corresponding path program 1 times [2023-11-24 23:21:52,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:52,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68885609] [2023-11-24 23:21:52,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:52,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:52,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:21:52,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:52,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68885609] [2023-11-24 23:21:52,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68885609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:52,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:52,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:21:52,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463593552] [2023-11-24 23:21:52,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:52,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:21:52,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:52,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:21:52,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:21:52,442 INFO L87 Difference]: Start difference. First operand 98 states and 122 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:21:52,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:52,601 INFO L93 Difference]: Finished difference Result 136 states and 167 transitions. [2023-11-24 23:21:52,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:21:52,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-24 23:21:52,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:52,603 INFO L225 Difference]: With dead ends: 136 [2023-11-24 23:21:52,603 INFO L226 Difference]: Without dead ends: 134 [2023-11-24 23:21:52,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:21:52,605 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 57 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:52,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 201 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:52,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-11-24 23:21:52,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 118. [2023-11-24 23:21:52,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 94 states have (on average 1.446808510638298) internal successors, (136), 105 states have internal predecessors, (136), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:21:52,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 151 transitions. [2023-11-24 23:21:52,654 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 151 transitions. Word has length 15 [2023-11-24 23:21:52,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:52,655 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 151 transitions. [2023-11-24 23:21:52,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:21:52,655 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 151 transitions. [2023-11-24 23:21:52,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:21:52,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:52,658 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:52,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:21:52,659 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:52,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:52,660 INFO L85 PathProgramCache]: Analyzing trace with hash 302137365, now seen corresponding path program 1 times [2023-11-24 23:21:52,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:52,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025275735] [2023-11-24 23:21:52,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:52,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:21:52,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:52,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025275735] [2023-11-24 23:21:52,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025275735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:52,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:52,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:21:52,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642516335] [2023-11-24 23:21:52,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:52,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:21:52,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:52,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:21:52,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:21:52,775 INFO L87 Difference]: Start difference. First operand 118 states and 151 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:21:52,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:52,930 INFO L93 Difference]: Finished difference Result 134 states and 166 transitions. [2023-11-24 23:21:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:21:52,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-24 23:21:52,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:52,934 INFO L225 Difference]: With dead ends: 134 [2023-11-24 23:21:52,934 INFO L226 Difference]: Without dead ends: 131 [2023-11-24 23:21:52,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:21:52,938 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 55 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:52,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 202 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:52,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-24 23:21:52,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 120. [2023-11-24 23:21:52,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.402061855670103) internal successors, (136), 107 states have internal predecessors, (136), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:21:52,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 151 transitions. [2023-11-24 23:21:52,964 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 151 transitions. Word has length 15 [2023-11-24 23:21:52,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:52,964 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 151 transitions. [2023-11-24 23:21:52,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:21:52,965 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 151 transitions. [2023-11-24 23:21:52,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:21:52,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:52,969 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:52,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 23:21:52,969 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:52,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:52,970 INFO L85 PathProgramCache]: Analyzing trace with hash -686759404, now seen corresponding path program 1 times [2023-11-24 23:21:52,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:52,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71738496] [2023-11-24 23:21:52,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:52,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:53,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:21:53,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:53,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71738496] [2023-11-24 23:21:53,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71738496] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:21:53,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107068825] [2023-11-24 23:21:53,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:53,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:21:53,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:21:53,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:21:53,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:21:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:53,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:21:53,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:21:53,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:21:53,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:21:53,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107068825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:53,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 23:21:53,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-24 23:21:53,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765399417] [2023-11-24 23:21:53,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:53,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:21:53,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:53,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:21:53,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:21:53,238 INFO L87 Difference]: Start difference. First operand 120 states and 151 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-24 23:21:53,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:53,335 INFO L93 Difference]: Finished difference Result 140 states and 175 transitions. [2023-11-24 23:21:53,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:21:53,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 15 [2023-11-24 23:21:53,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:53,337 INFO L225 Difference]: With dead ends: 140 [2023-11-24 23:21:53,338 INFO L226 Difference]: Without dead ends: 139 [2023-11-24 23:21:53,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:21:53,339 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 6 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:53,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 178 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:53,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-24 23:21:53,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 117. [2023-11-24 23:21:53,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 94 states have (on average 1.4042553191489362) internal successors, (132), 104 states have internal predecessors, (132), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:21:53,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2023-11-24 23:21:53,350 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 15 [2023-11-24 23:21:53,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:53,351 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2023-11-24 23:21:53,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-24 23:21:53,351 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2023-11-24 23:21:53,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 23:21:53,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:53,352 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:53,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-24 23:21:53,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:21:53,558 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:53,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:53,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1277142213, now seen corresponding path program 1 times [2023-11-24 23:21:53,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:53,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649144827] [2023-11-24 23:21:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:53,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:53,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:21:53,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:53,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649144827] [2023-11-24 23:21:53,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649144827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:53,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:53,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:21:53,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865744759] [2023-11-24 23:21:53,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:53,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:21:53,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:53,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:21:53,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:21:53,606 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:21:53,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:53,701 INFO L93 Difference]: Finished difference Result 141 states and 174 transitions. [2023-11-24 23:21:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:21:53,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-24 23:21:53,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:53,703 INFO L225 Difference]: With dead ends: 141 [2023-11-24 23:21:53,704 INFO L226 Difference]: Without dead ends: 140 [2023-11-24 23:21:53,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:21:53,705 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 8 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:53,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 170 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:53,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-24 23:21:53,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 115. [2023-11-24 23:21:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 92 states have (on average 1.391304347826087) internal successors, (128), 102 states have internal predecessors, (128), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:21:53,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 143 transitions. [2023-11-24 23:21:53,716 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 143 transitions. Word has length 18 [2023-11-24 23:21:53,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:53,717 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 143 transitions. [2023-11-24 23:21:53,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:21:53,717 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 143 transitions. [2023-11-24 23:21:53,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 23:21:53,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:53,718 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:53,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-24 23:21:53,719 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:53,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:53,720 INFO L85 PathProgramCache]: Analyzing trace with hash -869023513, now seen corresponding path program 1 times [2023-11-24 23:21:53,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:53,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732588431] [2023-11-24 23:21:53,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:53,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:53,771 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 23:21:53,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:53,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732588431] [2023-11-24 23:21:53,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732588431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:53,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:53,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:21:53,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014493627] [2023-11-24 23:21:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:53,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:21:53,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:53,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:21:53,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:21:53,774 INFO L87 Difference]: Start difference. First operand 115 states and 143 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 23:21:53,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:53,897 INFO L93 Difference]: Finished difference Result 127 states and 157 transitions. [2023-11-24 23:21:53,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:21:53,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-24 23:21:53,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:53,899 INFO L225 Difference]: With dead ends: 127 [2023-11-24 23:21:53,900 INFO L226 Difference]: Without dead ends: 125 [2023-11-24 23:21:53,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:21:53,901 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 51 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:53,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 197 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:53,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-24 23:21:53,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 111. [2023-11-24 23:21:53,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 98 states have internal predecessors, (123), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:21:53,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 138 transitions. [2023-11-24 23:21:53,911 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 138 transitions. Word has length 21 [2023-11-24 23:21:53,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:53,912 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 138 transitions. [2023-11-24 23:21:53,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 23:21:53,912 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 138 transitions. [2023-11-24 23:21:53,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 23:21:53,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:53,913 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:53,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-24 23:21:53,913 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:53,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash -897650869, now seen corresponding path program 1 times [2023-11-24 23:21:53,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:53,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280562173] [2023-11-24 23:21:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:53,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:53,981 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 23:21:53,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:53,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280562173] [2023-11-24 23:21:53,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280562173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:53,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:53,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:21:53,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262650406] [2023-11-24 23:21:53,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:53,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:21:53,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:53,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:21:53,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:21:53,985 INFO L87 Difference]: Start difference. First operand 111 states and 138 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 23:21:54,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:54,108 INFO L93 Difference]: Finished difference Result 121 states and 149 transitions. [2023-11-24 23:21:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:21:54,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-24 23:21:54,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:54,111 INFO L225 Difference]: With dead ends: 121 [2023-11-24 23:21:54,111 INFO L226 Difference]: Without dead ends: 119 [2023-11-24 23:21:54,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:21:54,112 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 49 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:54,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 197 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:54,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-24 23:21:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 104. [2023-11-24 23:21:54,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 91 states have internal predecessors, (115), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:21:54,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 130 transitions. [2023-11-24 23:21:54,129 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 130 transitions. Word has length 21 [2023-11-24 23:21:54,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:54,130 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 130 transitions. [2023-11-24 23:21:54,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 23:21:54,130 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 130 transitions. [2023-11-24 23:21:54,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 23:21:54,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:54,132 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:54,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-24 23:21:54,133 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:54,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:54,134 INFO L85 PathProgramCache]: Analyzing trace with hash -871439993, now seen corresponding path program 1 times [2023-11-24 23:21:54,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:54,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467394306] [2023-11-24 23:21:54,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:54,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:54,558 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 23:21:54,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:54,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467394306] [2023-11-24 23:21:54,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467394306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:54,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:21:54,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-24 23:21:54,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339820936] [2023-11-24 23:21:54,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:54,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 23:21:54,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:54,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 23:21:54,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-24 23:21:54,561 INFO L87 Difference]: Start difference. First operand 104 states and 130 transitions. Second operand has 10 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-24 23:21:54,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:54,707 INFO L93 Difference]: Finished difference Result 156 states and 192 transitions. [2023-11-24 23:21:54,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-24 23:21:54,707 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2023-11-24 23:21:54,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:54,708 INFO L225 Difference]: With dead ends: 156 [2023-11-24 23:21:54,709 INFO L226 Difference]: Without dead ends: 116 [2023-11-24 23:21:54,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-24 23:21:54,710 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 10 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:54,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 389 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:54,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-24 23:21:54,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 110. [2023-11-24 23:21:54,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 96 states have internal predecessors, (118), 9 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-24 23:21:54,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 137 transitions. [2023-11-24 23:21:54,725 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 137 transitions. Word has length 30 [2023-11-24 23:21:54,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:54,725 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 137 transitions. [2023-11-24 23:21:54,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-24 23:21:54,726 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2023-11-24 23:21:54,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-24 23:21:54,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:54,729 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:54,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-24 23:21:54,729 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:54,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:54,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1944501576, now seen corresponding path program 1 times [2023-11-24 23:21:54,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:54,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74569827] [2023-11-24 23:21:54,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:54,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:55,308 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:21:55,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:55,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74569827] [2023-11-24 23:21:55,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74569827] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:21:55,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972204502] [2023-11-24 23:21:55,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:55,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:21:55,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:21:55,310 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:21:55,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 23:21:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:55,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:21:55,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:21:55,461 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 23:21:55,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:21:55,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972204502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:21:55,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 23:21:55,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2023-11-24 23:21:55,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683081849] [2023-11-24 23:21:55,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:21:55,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:21:55,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:21:55,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:21:55,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-11-24 23:21:55,464 INFO L87 Difference]: Start difference. First operand 110 states and 137 transitions. Second operand has 4 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-24 23:21:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:21:55,543 INFO L93 Difference]: Finished difference Result 112 states and 139 transitions. [2023-11-24 23:21:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:21:55,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2023-11-24 23:21:55,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:21:55,545 INFO L225 Difference]: With dead ends: 112 [2023-11-24 23:21:55,546 INFO L226 Difference]: Without dead ends: 111 [2023-11-24 23:21:55,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-11-24 23:21:55,547 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 19 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:21:55,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 128 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:21:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-24 23:21:55,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2023-11-24 23:21:55,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3295454545454546) internal successors, (117), 95 states have internal predecessors, (117), 9 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-24 23:21:55,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2023-11-24 23:21:55,558 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 136 transitions. Word has length 34 [2023-11-24 23:21:55,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:21:55,559 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 136 transitions. [2023-11-24 23:21:55,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-24 23:21:55,559 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 136 transitions. [2023-11-24 23:21:55,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 23:21:55,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:21:55,560 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:21:55,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:21:55,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-24 23:21:55,767 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:21:55,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:21:55,768 INFO L85 PathProgramCache]: Analyzing trace with hash -150006505, now seen corresponding path program 1 times [2023-11-24 23:21:55,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:21:55,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137221593] [2023-11-24 23:21:55,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:55,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:21:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:56,202 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:21:56,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:21:56,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137221593] [2023-11-24 23:21:56,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137221593] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:21:56,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353622921] [2023-11-24 23:21:56,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:21:56,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:21:56,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:21:56,204 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:21:56,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 23:21:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:21:56,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:21:56,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:21:56,467 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 23:21:56,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:21:56,732 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 23:21:56,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353622921] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:21:56,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [994015437] [2023-11-24 23:21:56,758 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2023-11-24 23:21:56,758 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:21:56,762 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:21:56,768 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:21:56,768 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:21:58,344 INFO L197 IcfgInterpreter]: Interpreting procedure addflt with input of size 3 for LOIs [2023-11-24 23:21:58,669 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 56 for LOIs [2023-11-24 23:21:58,693 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 11 for LOIs [2023-11-24 23:21:58,739 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:22:02,647 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4256#(and (<= 1 |#StackHeapBarrier|) (<= (+ addflt_~eb~0 2147483648) addflt_~ea~0))' at error location [2023-11-24 23:22:02,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-24 23:22:02,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:22:02,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 8] total 21 [2023-11-24 23:22:02,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597541360] [2023-11-24 23:22:02,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 23:22:02,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-24 23:22:02,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:02,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-24 23:22:02,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1656, Unknown=0, NotChecked=0, Total=1806 [2023-11-24 23:22:02,650 INFO L87 Difference]: Start difference. First operand 109 states and 136 transitions. Second operand has 21 states, 17 states have (on average 2.176470588235294) internal successors, (37), 15 states have internal predecessors, (37), 5 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-24 23:22:03,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:03,296 INFO L93 Difference]: Finished difference Result 244 states and 302 transitions. [2023-11-24 23:22:03,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-24 23:22:03,298 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 2.176470588235294) internal successors, (37), 15 states have internal predecessors, (37), 5 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 4 states have call successors, (9) Word has length 35 [2023-11-24 23:22:03,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:03,299 INFO L225 Difference]: With dead ends: 244 [2023-11-24 23:22:03,299 INFO L226 Difference]: Without dead ends: 139 [2023-11-24 23:22:03,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 72 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=223, Invalid=2639, Unknown=0, NotChecked=0, Total=2862 [2023-11-24 23:22:03,302 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 46 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:03,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 718 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 23:22:03,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-24 23:22:03,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 91. [2023-11-24 23:22:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 75 states have internal predecessors, (89), 10 states have call successors, (10), 6 states have call predecessors, (10), 8 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2023-11-24 23:22:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 110 transitions. [2023-11-24 23:22:03,317 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 110 transitions. Word has length 35 [2023-11-24 23:22:03,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:03,317 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 110 transitions. [2023-11-24 23:22:03,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 2.176470588235294) internal successors, (37), 15 states have internal predecessors, (37), 5 states have call successors, (9), 5 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-24 23:22:03,318 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2023-11-24 23:22:03,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 23:22:03,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:03,319 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:03,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:22:03,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:22:03,525 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:22:03,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:03,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1931342039, now seen corresponding path program 2 times [2023-11-24 23:22:03,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:03,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545144814] [2023-11-24 23:22:03,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:03,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 23:22:03,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:03,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545144814] [2023-11-24 23:22:03,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545144814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:03,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:03,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-24 23:22:03,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736994304] [2023-11-24 23:22:03,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:03,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:22:03,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:03,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:22:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:22:03,810 INFO L87 Difference]: Start difference. First operand 91 states and 110 transitions. Second operand has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 23:22:03,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:03,925 INFO L93 Difference]: Finished difference Result 130 states and 156 transitions. [2023-11-24 23:22:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 23:22:03,925 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2023-11-24 23:22:03,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:03,927 INFO L225 Difference]: With dead ends: 130 [2023-11-24 23:22:03,927 INFO L226 Difference]: Without dead ends: 99 [2023-11-24 23:22:03,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-24 23:22:03,928 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 7 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:03,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 426 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:22:03,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-24 23:22:03,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2023-11-24 23:22:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 68 states have (on average 1.3088235294117647) internal successors, (89), 75 states have internal predecessors, (89), 10 states have call successors, (10), 6 states have call predecessors, (10), 8 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2023-11-24 23:22:03,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 110 transitions. [2023-11-24 23:22:03,936 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 110 transitions. Word has length 35 [2023-11-24 23:22:03,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:03,937 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 110 transitions. [2023-11-24 23:22:03,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 23:22:03,937 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2023-11-24 23:22:03,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-24 23:22:03,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:03,938 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:03,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-24 23:22:03,938 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:22:03,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:03,939 INFO L85 PathProgramCache]: Analyzing trace with hash 201683782, now seen corresponding path program 1 times [2023-11-24 23:22:03,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:03,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648937980] [2023-11-24 23:22:03,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:03,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 23:22:04,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:04,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648937980] [2023-11-24 23:22:04,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648937980] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:22:04,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282910622] [2023-11-24 23:22:04,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:04,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:22:04,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:22:04,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:22:04,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 23:22:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:04,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 23:22:04,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:22:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 23:22:04,310 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:22:04,553 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 23:22:04,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282910622] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:22:04,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [591452984] [2023-11-24 23:22:04,556 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2023-11-24 23:22:04,557 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:22:04,557 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:22:04,557 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:22:04,557 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:22:05,814 INFO L197 IcfgInterpreter]: Interpreting procedure addflt with input of size 3 for LOIs [2023-11-24 23:22:06,062 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 56 for LOIs [2023-11-24 23:22:06,112 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 11 for LOIs [2023-11-24 23:22:06,158 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:22:17,557 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5243#(and (<= 1 |#StackHeapBarrier|) (<= (+ addflt_~eb~0 2147483648) addflt_~ea~0))' at error location [2023-11-24 23:22:17,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-24 23:22:17,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:22:17,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 17 [2023-11-24 23:22:17,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450330545] [2023-11-24 23:22:17,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 23:22:17,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-24 23:22:17,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:17,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-24 23:22:17,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1647, Unknown=3, NotChecked=0, Total=1806 [2023-11-24 23:22:17,562 INFO L87 Difference]: Start difference. First operand 91 states and 110 transitions. Second operand has 17 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 13 states have internal predecessors, (40), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-24 23:22:18,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:18,136 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2023-11-24 23:22:18,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-24 23:22:18,137 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 13 states have internal predecessors, (40), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 41 [2023-11-24 23:22:18,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:18,138 INFO L225 Difference]: With dead ends: 160 [2023-11-24 23:22:18,138 INFO L226 Difference]: Without dead ends: 117 [2023-11-24 23:22:18,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=208, Invalid=2239, Unknown=3, NotChecked=0, Total=2450 [2023-11-24 23:22:18,140 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:18,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 578 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 23:22:18,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-24 23:22:18,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 87. [2023-11-24 23:22:18,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 72 states have internal predecessors, (85), 9 states have call successors, (9), 6 states have call predecessors, (9), 7 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-24 23:22:18,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions. [2023-11-24 23:22:18,148 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 41 [2023-11-24 23:22:18,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:18,149 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 103 transitions. [2023-11-24 23:22:18,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 13 states have internal predecessors, (40), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-24 23:22:18,149 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions. [2023-11-24 23:22:18,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-24 23:22:18,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:18,150 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:18,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 23:22:18,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-24 23:22:18,353 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:22:18,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:18,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1727037190, now seen corresponding path program 2 times [2023-11-24 23:22:18,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:18,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080843082] [2023-11-24 23:22:18,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:18,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:22:18,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:18,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080843082] [2023-11-24 23:22:18,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080843082] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:22:18,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854530530] [2023-11-24 23:22:18,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 23:22:18,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:22:18,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:22:18,777 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:22:18,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 23:22:18,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-24 23:22:18,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 23:22:18,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:22:18,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:22:19,142 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-24 23:22:19,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:22:19,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854530530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:19,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 23:22:19,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 15 [2023-11-24 23:22:19,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103604333] [2023-11-24 23:22:19,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:19,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:22:19,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:19,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:22:19,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-24 23:22:19,146 INFO L87 Difference]: Start difference. First operand 87 states and 103 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 23:22:19,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:19,298 INFO L93 Difference]: Finished difference Result 97 states and 114 transitions. [2023-11-24 23:22:19,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:22:19,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2023-11-24 23:22:19,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:19,300 INFO L225 Difference]: With dead ends: 97 [2023-11-24 23:22:19,301 INFO L226 Difference]: Without dead ends: 94 [2023-11-24 23:22:19,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-24 23:22:19,302 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 51 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:19,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 133 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:22:19,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-24 23:22:19,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 89. [2023-11-24 23:22:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 73 states have internal predecessors, (87), 10 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-24 23:22:19,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 107 transitions. [2023-11-24 23:22:19,311 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 107 transitions. Word has length 41 [2023-11-24 23:22:19,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:19,311 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 107 transitions. [2023-11-24 23:22:19,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 23:22:19,312 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 107 transitions. [2023-11-24 23:22:19,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-24 23:22:19,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:19,313 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:19,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:22:19,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-24 23:22:19,520 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:22:19,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:19,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1671711505, now seen corresponding path program 1 times [2023-11-24 23:22:19,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:19,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547055946] [2023-11-24 23:22:19,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:19,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:19,598 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-24 23:22:19,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:19,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547055946] [2023-11-24 23:22:19,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547055946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:19,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:19,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:22:19,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985036692] [2023-11-24 23:22:19,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:19,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:19,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:19,600 INFO L87 Difference]: Start difference. First operand 89 states and 107 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 23:22:19,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:19,662 INFO L93 Difference]: Finished difference Result 91 states and 109 transitions. [2023-11-24 23:22:19,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:19,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2023-11-24 23:22:19,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:19,664 INFO L225 Difference]: With dead ends: 91 [2023-11-24 23:22:19,664 INFO L226 Difference]: Without dead ends: 89 [2023-11-24 23:22:19,665 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 [2023-11-24 23:22:19,665 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 9 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:19,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 88 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:22:19,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-24 23:22:19,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2023-11-24 23:22:19,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 71 states have internal predecessors, (84), 10 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-24 23:22:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2023-11-24 23:22:19,674 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 47 [2023-11-24 23:22:19,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:19,675 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2023-11-24 23:22:19,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 23:22:19,675 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2023-11-24 23:22:19,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-24 23:22:19,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:19,676 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:19,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-24 23:22:19,677 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-24 23:22:19,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:19,677 INFO L85 PathProgramCache]: Analyzing trace with hash 453704318, now seen corresponding path program 1 times [2023-11-24 23:22:19,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:19,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899896844] [2023-11-24 23:22:19,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:19,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:19,897 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-24 23:22:19,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:19,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899896844] [2023-11-24 23:22:19,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899896844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:19,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:19,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:19,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652202731] [2023-11-24 23:22:19,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:19,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:22:19,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:19,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:22:19,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:22:19,900 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-24 23:22:19,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:19,979 INFO L93 Difference]: Finished difference Result 91 states and 108 transitions. [2023-11-24 23:22:19,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:22:19,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 54 [2023-11-24 23:22:19,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:19,980 INFO L225 Difference]: With dead ends: 91 [2023-11-24 23:22:19,981 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 23:22:19,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:22:19,982 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 9 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:19,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 129 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:22:19,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 23:22:19,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 23:22:19,983 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) [2023-11-24 23:22:19,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 23:22:19,983 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2023-11-24 23:22:19,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:19,983 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 23:22:19,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-24 23:22:19,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 23:22:19,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:22:19,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-11-24 23:22:19,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-11-24 23:22:19,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-11-24 23:22:19,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-11-24 23:22:19,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-11-24 23:22:19,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-11-24 23:22:19,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2023-11-24 23:22:19,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2023-11-24 23:22:19,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-11-24 23:22:19,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-11-24 23:22:19,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-11-24 23:22:19,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-11-24 23:22:19,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-11-24 23:22:19,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-11-24 23:22:19,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-11-24 23:22:19,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-11-24 23:22:19,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-24 23:22:19,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-24 23:22:20,554 INFO L899 garLoopResultBuilder]: For program point base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-24 23:22:20,554 INFO L899 garLoopResultBuilder]: For program point base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2023-11-24 23:22:20,554 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-11-24 23:22:20,554 INFO L899 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2023-11-24 23:22:20,554 INFO L895 garLoopResultBuilder]: At program point L57-2(lines 57 72) the Hoare annotation is: (and (or (< 0 (mod |base2flt_#in~m| 4294967296)) (not (= |base2flt_#in~e| 0))) (or (< 127 |base2flt_#in~e|) (and (<= 0 (+ 128 base2flt_~e)) (<= base2flt_~e 127)) (< (+ 128 |base2flt_#in~e|) 0))) [2023-11-24 23:22:20,555 INFO L899 garLoopResultBuilder]: For program point $Ultimate##27(line 76) no Hoare annotation was computed. [2023-11-24 23:22:20,555 INFO L899 garLoopResultBuilder]: For program point base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2023-11-24 23:22:20,555 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-24 23:22:20,555 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-24 23:22:20,555 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2023-11-24 23:22:20,555 INFO L899 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2023-11-24 23:22:20,555 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 34) no Hoare annotation was computed. [2023-11-24 23:22:20,555 INFO L899 garLoopResultBuilder]: For program point L58(lines 57 72) no Hoare annotation was computed. [2023-11-24 23:22:20,555 INFO L899 garLoopResultBuilder]: For program point base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2023-11-24 23:22:20,555 INFO L899 garLoopResultBuilder]: For program point L79(lines 28 81) no Hoare annotation was computed. [2023-11-24 23:22:20,555 INFO L899 garLoopResultBuilder]: For program point base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 77) no Hoare annotation was computed. [2023-11-24 23:22:20,556 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 24 82) the Hoare annotation is: true [2023-11-24 23:22:20,556 INFO L899 garLoopResultBuilder]: For program point L38(lines 37 52) no Hoare annotation was computed. [2023-11-24 23:22:20,556 INFO L899 garLoopResultBuilder]: For program point L59(lines 57 72) no Hoare annotation was computed. [2023-11-24 23:22:20,556 INFO L899 garLoopResultBuilder]: For program point base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-24 23:22:20,556 INFO L899 garLoopResultBuilder]: For program point base2fltEXIT(lines 24 82) no Hoare annotation was computed. [2023-11-24 23:22:20,556 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 51) no Hoare annotation was computed. [2023-11-24 23:22:20,556 INFO L895 garLoopResultBuilder]: At program point L47-1(lines 37 52) the Hoare annotation is: (and (or (< 0 (mod |base2flt_#in~m| 4294967296)) (not (= |base2flt_#in~e| 0))) (or (< 127 |base2flt_#in~e|) (< (+ 128 |base2flt_#in~e|) 0) (<= base2flt_~e 127))) [2023-11-24 23:22:20,556 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 75) no Hoare annotation was computed. [2023-11-24 23:22:20,556 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-24 23:22:20,556 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127)) [2023-11-24 23:22:20,557 INFO L899 garLoopResultBuilder]: For program point L244-1(line 244) no Hoare annotation was computed. [2023-11-24 23:22:20,557 INFO L895 garLoopResultBuilder]: At program point L242(line 242) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127)) [2023-11-24 23:22:20,557 INFO L899 garLoopResultBuilder]: For program point L242-1(line 242) no Hoare annotation was computed. [2023-11-24 23:22:20,557 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-24 23:22:20,557 INFO L895 garLoopResultBuilder]: At program point L245(line 245) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127)) [2023-11-24 23:22:20,557 INFO L902 garLoopResultBuilder]: At program point L247-2(lines 247 256) the Hoare annotation is: true [2023-11-24 23:22:20,557 INFO L899 garLoopResultBuilder]: For program point L245-1(line 245) no Hoare annotation was computed. [2023-11-24 23:22:20,557 INFO L895 garLoopResultBuilder]: At program point L243(line 243) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127)) [2023-11-24 23:22:20,557 INFO L899 garLoopResultBuilder]: For program point L243-1(line 243) no Hoare annotation was computed. [2023-11-24 23:22:20,557 INFO L895 garLoopResultBuilder]: At program point L241(line 241) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~eb~2#1| 127) (<= 0 (+ |ULTIMATE.start_main_~ea~2#1| 128)) (<= 0 (+ |ULTIMATE.start_main_~eb~2#1| 128)) (<= |ULTIMATE.start_main_~ea~2#1| 127)) [2023-11-24 23:22:20,557 INFO L899 garLoopResultBuilder]: For program point L241-1(line 241) no Hoare annotation was computed. [2023-11-24 23:22:20,558 INFO L899 garLoopResultBuilder]: For program point L258(line 258) no Hoare annotation was computed. [2023-11-24 23:22:20,558 INFO L899 garLoopResultBuilder]: For program point addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 112) no Hoare annotation was computed. [2023-11-24 23:22:20,558 INFO L899 garLoopResultBuilder]: For program point L126-4(lines 126 137) no Hoare annotation was computed. [2023-11-24 23:22:20,558 INFO L899 garLoopResultBuilder]: For program point addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 133) no Hoare annotation was computed. [2023-11-24 23:22:20,558 INFO L895 garLoopResultBuilder]: At program point L126-6(lines 126 137) the Hoare annotation is: (and (not (= |addflt_#in~b| 0)) (<= addflt_~ea~0 128) (<= 0 (+ addflt_~ea~0 2147483648)) (not (= (mod addflt_~b 4294967296) 0)) (not (= |addflt_#in~a| 0)) (<= addflt_~eb~0 addflt_~ea~0)) [2023-11-24 23:22:20,558 INFO L895 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (and (not (= |addflt_#in~b| 0)) (<= addflt_~ea~0 127) (<= 0 (+ addflt_~eb~0 128)) (<= 0 (+ addflt_~ea~0 2147483648)) (not (= (mod addflt_~b 4294967296) 0)) (not (= |addflt_#in~a| 0))) [2023-11-24 23:22:20,558 INFO L899 garLoopResultBuilder]: For program point L114-1(line 114) no Hoare annotation was computed. [2023-11-24 23:22:20,558 INFO L899 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2023-11-24 23:22:20,558 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 132) no Hoare annotation was computed. [2023-11-24 23:22:20,558 INFO L899 garLoopResultBuilder]: For program point addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 112) no Hoare annotation was computed. [2023-11-24 23:22:20,559 INFO L899 garLoopResultBuilder]: For program point L94-2(lines 93 146) no Hoare annotation was computed. [2023-11-24 23:22:20,559 INFO L899 garLoopResultBuilder]: For program point addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 133) no Hoare annotation was computed. [2023-11-24 23:22:20,559 INFO L899 garLoopResultBuilder]: For program point L119(lines 119 124) no Hoare annotation was computed. [2023-11-24 23:22:20,559 INFO L899 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2023-11-24 23:22:20,559 INFO L899 garLoopResultBuilder]: For program point L144(lines 93 146) no Hoare annotation was computed. [2023-11-24 23:22:20,559 INFO L899 garLoopResultBuilder]: For program point addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 109) no Hoare annotation was computed. [2023-11-24 23:22:20,559 INFO L899 garLoopResultBuilder]: For program point addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 115) no Hoare annotation was computed. [2023-11-24 23:22:20,559 INFO L895 garLoopResultBuilder]: At program point L116(line 116) the Hoare annotation is: (and (not (= |addflt_#in~b| 0)) (<= addflt_~ea~0 127) (<= 0 (+ addflt_~eb~0 128)) (not (= (mod addflt_~b 4294967296) 0)) (not (= |addflt_#in~a| 0)) (<= addflt_~eb~0 addflt_~ea~0)) [2023-11-24 23:22:20,559 INFO L899 garLoopResultBuilder]: For program point L116-1(lines 107 118) no Hoare annotation was computed. [2023-11-24 23:22:20,559 INFO L899 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2023-11-24 23:22:20,560 INFO L899 garLoopResultBuilder]: For program point L112-1(line 112) no Hoare annotation was computed. [2023-11-24 23:22:20,560 INFO L899 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2023-11-24 23:22:20,560 INFO L899 garLoopResultBuilder]: For program point L141-1(line 141) no Hoare annotation was computed. [2023-11-24 23:22:20,560 INFO L899 garLoopResultBuilder]: For program point addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 141) no Hoare annotation was computed. [2023-11-24 23:22:20,563 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 83 147) the Hoare annotation is: true [2023-11-24 23:22:20,563 INFO L899 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2023-11-24 23:22:20,563 INFO L899 garLoopResultBuilder]: For program point L133-1(line 133) no Hoare annotation was computed. [2023-11-24 23:22:20,564 INFO L899 garLoopResultBuilder]: For program point addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 109) no Hoare annotation was computed. [2023-11-24 23:22:20,564 INFO L899 garLoopResultBuilder]: For program point addfltEXIT(lines 83 147) no Hoare annotation was computed. [2023-11-24 23:22:20,564 INFO L899 garLoopResultBuilder]: For program point addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 115) no Hoare annotation was computed. [2023-11-24 23:22:20,564 INFO L899 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2023-11-24 23:22:20,564 INFO L899 garLoopResultBuilder]: For program point addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 141) no Hoare annotation was computed. [2023-11-24 23:22:20,565 INFO L899 garLoopResultBuilder]: For program point L109-1(line 109) no Hoare annotation was computed. [2023-11-24 23:22:20,565 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 15 20) no Hoare annotation was computed. [2023-11-24 23:22:20,565 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 15 20) the Hoare annotation is: true [2023-11-24 23:22:20,570 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:20,572 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:22:20,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:22:20 BoogieIcfgContainer [2023-11-24 23:22:20,587 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:22:20,588 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:22:20,588 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:22:20,588 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:22:20,589 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:21:50" (3/4) ... [2023-11-24 23:22:20,591 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:22:20,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure base2flt [2023-11-24 23:22:20,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure addflt [2023-11-24 23:22:20,596 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-24 23:22:20,613 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2023-11-24 23:22:20,614 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-24 23:22:20,615 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:22:20,615 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:22:20,648 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && (((127 < \old(e)) || ((128 + \old(e)) < 0)) || (e <= 127))) [2023-11-24 23:22:20,648 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && (((127 < \old(e)) || ((0 <= (128 + e)) && (e <= 127))) || ((128 + \old(e)) < 0))) [2023-11-24 23:22:20,692 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && (((127 < \old(e)) || ((128 + \old(e)) < 0)) || (e <= 127))) [2023-11-24 23:22:20,693 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && (((127 < \old(e)) || ((0 <= (128 + e)) && (e <= 127))) || ((128 + \old(e)) < 0))) [2023-11-24 23:22:20,755 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-24 23:22:20,756 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-24 23:22:20,756 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:22:20,757 INFO L158 Benchmark]: Toolchain (without parser) took 31543.92ms. Allocated memory was 174.1MB in the beginning and 362.8MB in the end (delta: 188.7MB). Free memory was 143.3MB in the beginning and 167.7MB in the end (delta: -24.4MB). Peak memory consumption was 163.4MB. Max. memory is 16.1GB. [2023-11-24 23:22:20,757 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:22:20,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.05ms. Allocated memory is still 174.1MB. Free memory was 142.8MB in the beginning and 129.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:22:20,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.71ms. Allocated memory is still 174.1MB. Free memory was 129.8MB in the beginning and 128.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:22:20,760 INFO L158 Benchmark]: Boogie Preprocessor took 31.96ms. Allocated memory is still 174.1MB. Free memory was 128.1MB in the beginning and 126.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:22:20,760 INFO L158 Benchmark]: RCFGBuilder took 931.13ms. Allocated memory is still 174.1MB. Free memory was 126.6MB in the beginning and 107.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 23:22:20,761 INFO L158 Benchmark]: TraceAbstraction took 30009.27ms. Allocated memory was 174.1MB in the beginning and 362.8MB in the end (delta: 188.7MB). Free memory was 107.1MB in the beginning and 174.0MB in the end (delta: -66.9MB). Peak memory consumption was 122.3MB. Max. memory is 16.1GB. [2023-11-24 23:22:20,762 INFO L158 Benchmark]: Witness Printer took 168.15ms. Allocated memory is still 362.8MB. Free memory was 174.0MB in the beginning and 167.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 23:22:20,767 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.05ms. Allocated memory is still 174.1MB. Free memory was 142.8MB in the beginning and 129.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.71ms. Allocated memory is still 174.1MB. Free memory was 129.8MB in the beginning and 128.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.96ms. Allocated memory is still 174.1MB. Free memory was 128.1MB in the beginning and 126.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 931.13ms. Allocated memory is still 174.1MB. Free memory was 126.6MB in the beginning and 107.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 30009.27ms. Allocated memory was 174.1MB in the beginning and 362.8MB in the end (delta: 188.7MB). Free memory was 107.1MB in the beginning and 174.0MB in the end (delta: -66.9MB). Peak memory consumption was 122.3MB. Max. memory is 16.1GB. * Witness Printer took 168.15ms. Allocated memory is still 362.8MB. Free memory was 174.0MB in the beginning and 167.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 112]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 115]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 115]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 133]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 141]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 141]: 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 4 procedures, 72 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 29.9s, OverallIterations: 19, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 635 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 610 mSDsluCounter, 4535 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3489 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2170 IncrementalHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 1046 mSDtfsCounter, 2170 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 463 GetRequests, 274 SyntacticMatches, 5 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1408 ImplicationChecksByTransitivity, 16.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=7, InterpolantAutomatonStates: 127, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 19 MinimizatonAttempts, 242 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 140 PreInvPairs, 156 NumberOfFragments, 221 HoareAnnotationTreeSize, 140 FomulaSimplifications, 1006 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 14 FomulaSimplificationsInter, 653 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 643 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 693 ConstructedInterpolants, 0 QuantifiedInterpolants, 1433 SizeOfPredicates, 17 NumberOfNonLiveVariables, 504 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 26 InterpolantComputations, 17 PerfectInterpolantSequences, 192/222 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && (((127 < \old(e)) || ((128 + \old(e)) < 0)) || (e <= 127))) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: (((0 < (\old(m) % 4294967296)) || !((\old(e) == 0))) && (((127 < \old(e)) || ((0 <= (128 + e)) && (e <= 127))) || ((128 + \old(e)) < 0))) RESULT: Ultimate proved your program to be correct! [2023-11-24 23:22:20,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8c3019-3f6a-4a88-ae27-f42e9f188c57/bin/utaipan-verify-SwPr7d2a91/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